2919 lines
86 KiB
C
2919 lines
86 KiB
C
/*
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* Copyright © 2014 Connor Abbott
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Connor Abbott (cwabbott0@gmail.com)
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*
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*/
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#ifndef NIR_H
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#define NIR_H
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#include "util/hash_table.h"
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#include "compiler/glsl/list.h"
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#include "GL/gl.h" /* GLenum */
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#include "util/list.h"
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#include "util/ralloc.h"
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#include "util/set.h"
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#include "util/bitset.h"
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#include "util/macros.h"
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#include "compiler/nir_types.h"
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#include "compiler/shader_enums.h"
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#include "compiler/shader_info.h"
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#include <stdio.h>
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#ifndef NDEBUG
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#include "util/debug.h"
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#endif /* NDEBUG */
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#include "nir_opcodes.h"
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#if defined(_WIN32) && !defined(snprintf)
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#define snprintf _snprintf
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define NIR_FALSE 0u
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#define NIR_TRUE (~0u)
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/** Defines a cast function
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*
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* This macro defines a cast function from in_type to out_type where
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* out_type is some structure type that contains a field of type out_type.
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*
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* Note that you have to be a bit careful as the generated cast function
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* destroys constness.
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*/
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#define NIR_DEFINE_CAST(name, in_type, out_type, field, \
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type_field, type_value) \
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static inline out_type * \
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name(const in_type *parent) \
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{ \
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assert(parent && parent->type_field == type_value); \
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return exec_node_data(out_type, parent, field); \
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}
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struct nir_function;
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struct nir_shader;
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struct nir_instr;
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/**
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* Description of built-in state associated with a uniform
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*
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* \sa nir_variable::state_slots
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*/
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typedef struct {
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gl_state_index16 tokens[STATE_LENGTH];
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int swizzle;
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} nir_state_slot;
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typedef enum {
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nir_var_shader_in = (1 << 0),
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nir_var_shader_out = (1 << 1),
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nir_var_global = (1 << 2),
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nir_var_local = (1 << 3),
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nir_var_uniform = (1 << 4),
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nir_var_shader_storage = (1 << 5),
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nir_var_system_value = (1 << 6),
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nir_var_param = (1 << 7),
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nir_var_shared = (1 << 8),
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nir_var_all = ~0,
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} nir_variable_mode;
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/**
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* Rounding modes.
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*/
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typedef enum {
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nir_rounding_mode_undef = 0,
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nir_rounding_mode_rtne = 1, /* round to nearest even */
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nir_rounding_mode_ru = 2, /* round up */
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nir_rounding_mode_rd = 3, /* round down */
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nir_rounding_mode_rtz = 4, /* round towards zero */
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} nir_rounding_mode;
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typedef union {
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float f32[4];
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double f64[4];
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int8_t i8[4];
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uint8_t u8[4];
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int16_t i16[4];
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uint16_t u16[4];
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int32_t i32[4];
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uint32_t u32[4];
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int64_t i64[4];
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uint64_t u64[4];
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} nir_const_value;
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typedef struct nir_constant {
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/**
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* Value of the constant.
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*
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* The field used to back the values supplied by the constant is determined
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* by the type associated with the \c nir_variable. Constants may be
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* scalars, vectors, or matrices.
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*/
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nir_const_value values[4];
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/* we could get this from the var->type but makes clone *much* easier to
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* not have to care about the type.
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*/
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unsigned num_elements;
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/* Array elements / Structure Fields */
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struct nir_constant **elements;
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} nir_constant;
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/**
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* \brief Layout qualifiers for gl_FragDepth.
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*
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* The AMD/ARB_conservative_depth extensions allow gl_FragDepth to be redeclared
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* with a layout qualifier.
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*/
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typedef enum {
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nir_depth_layout_none, /**< No depth layout is specified. */
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nir_depth_layout_any,
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nir_depth_layout_greater,
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nir_depth_layout_less,
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nir_depth_layout_unchanged
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} nir_depth_layout;
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/**
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* Either a uniform, global variable, shader input, or shader output. Based on
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* ir_variable - it should be easy to translate between the two.
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*/
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typedef struct nir_variable {
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struct exec_node node;
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/**
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* Declared type of the variable
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*/
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const struct glsl_type *type;
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/**
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* Declared name of the variable
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*/
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char *name;
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struct nir_variable_data {
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/**
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* Storage class of the variable.
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*
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* \sa nir_variable_mode
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*/
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nir_variable_mode mode;
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/**
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* Is the variable read-only?
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*
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* This is set for variables declared as \c const, shader inputs,
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* and uniforms.
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*/
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unsigned read_only:1;
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unsigned centroid:1;
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unsigned sample:1;
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unsigned patch:1;
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unsigned invariant:1;
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/**
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* When separate shader programs are enabled, only input/outputs between
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* the stages of a multi-stage separate program can be safely removed
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* from the shader interface. Other input/outputs must remains active.
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*
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* This is also used to make sure xfb varyings that are unused by the
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* fragment shader are not removed.
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*/
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unsigned always_active_io:1;
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/**
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* Interpolation mode for shader inputs / outputs
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*
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* \sa glsl_interp_mode
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*/
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unsigned interpolation:2;
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/**
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* \name ARB_fragment_coord_conventions
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* @{
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*/
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unsigned origin_upper_left:1;
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unsigned pixel_center_integer:1;
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/*@}*/
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/**
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* If non-zero, then this variable may be packed along with other variables
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* into a single varying slot, so this offset should be applied when
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* accessing components. For example, an offset of 1 means that the x
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* component of this variable is actually stored in component y of the
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* location specified by \c location.
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*/
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unsigned location_frac:2;
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/**
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* If true, this variable represents an array of scalars that should
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* be tightly packed. In other words, consecutive array elements
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* should be stored one component apart, rather than one slot apart.
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*/
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unsigned compact:1;
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/**
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* Whether this is a fragment shader output implicitly initialized with
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* the previous contents of the specified render target at the
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* framebuffer location corresponding to this shader invocation.
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*/
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unsigned fb_fetch_output:1;
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/**
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* Non-zero if this variable is considered bindless as defined by
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* ARB_bindless_texture.
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*/
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unsigned bindless:1;
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/**
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* Was an explicit binding set in the shader?
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*/
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unsigned explicit_binding:1;
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/**
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* \brief Layout qualifier for gl_FragDepth.
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*
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* This is not equal to \c ir_depth_layout_none if and only if this
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* variable is \c gl_FragDepth and a layout qualifier is specified.
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*/
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nir_depth_layout depth_layout;
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/**
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* Storage location of the base of this variable
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*
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* The precise meaning of this field depends on the nature of the variable.
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*
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* - Vertex shader input: one of the values from \c gl_vert_attrib.
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* - Vertex shader output: one of the values from \c gl_varying_slot.
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* - Geometry shader input: one of the values from \c gl_varying_slot.
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* - Geometry shader output: one of the values from \c gl_varying_slot.
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* - Fragment shader input: one of the values from \c gl_varying_slot.
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* - Fragment shader output: one of the values from \c gl_frag_result.
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* - Uniforms: Per-stage uniform slot number for default uniform block.
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* - Uniforms: Index within the uniform block definition for UBO members.
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* - Non-UBO Uniforms: uniform slot number.
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* - Other: This field is not currently used.
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*
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* If the variable is a uniform, shader input, or shader output, and the
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* slot has not been assigned, the value will be -1.
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*/
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int location;
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/**
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* The actual location of the variable in the IR. Only valid for inputs
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* and outputs.
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*/
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unsigned int driver_location;
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/**
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* Vertex stream output identifier.
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*
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* For packed outputs, bit 31 is set and bits [2*i+1,2*i] indicate the
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* stream of the i-th component.
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*/
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unsigned stream;
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/**
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* output index for dual source blending.
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*/
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int index;
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/**
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* Descriptor set binding for sampler or UBO.
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*/
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int descriptor_set;
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/**
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* Initial binding point for a sampler or UBO.
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*
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* For array types, this represents the binding point for the first element.
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*/
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int binding;
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/**
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* Location an atomic counter is stored at.
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*/
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unsigned offset;
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/**
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* ARB_shader_image_load_store qualifiers.
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*/
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struct {
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bool read_only; /**< "readonly" qualifier. */
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bool write_only; /**< "writeonly" qualifier. */
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bool coherent;
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bool _volatile;
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bool restrict_flag;
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/** Image internal format if specified explicitly, otherwise GL_NONE. */
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GLenum format;
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} image;
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} data;
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/**
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* Built-in state that backs this uniform
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*
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* Once set at variable creation, \c state_slots must remain invariant.
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* This is because, ideally, this array would be shared by all clones of
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* this variable in the IR tree. In other words, we'd really like for it
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* to be a fly-weight.
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*
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* If the variable is not a uniform, \c num_state_slots will be zero and
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* \c state_slots will be \c NULL.
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*/
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/*@{*/
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unsigned num_state_slots; /**< Number of state slots used */
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nir_state_slot *state_slots; /**< State descriptors. */
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/*@}*/
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/**
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* Constant expression assigned in the initializer of the variable
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*
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* This field should only be used temporarily by creators of NIR shaders
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* and then lower_constant_initializers can be used to get rid of them.
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* Most of the rest of NIR ignores this field or asserts that it's NULL.
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*/
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nir_constant *constant_initializer;
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/**
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* For variables that are in an interface block or are an instance of an
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* interface block, this is the \c GLSL_TYPE_INTERFACE type for that block.
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*
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* \sa ir_variable::location
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*/
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const struct glsl_type *interface_type;
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} nir_variable;
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#define nir_foreach_variable(var, var_list) \
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foreach_list_typed(nir_variable, var, node, var_list)
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#define nir_foreach_variable_safe(var, var_list) \
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foreach_list_typed_safe(nir_variable, var, node, var_list)
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static inline bool
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nir_variable_is_global(const nir_variable *var)
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{
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return var->data.mode != nir_var_local && var->data.mode != nir_var_param;
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}
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typedef struct nir_register {
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struct exec_node node;
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unsigned num_components; /** < number of vector components */
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unsigned num_array_elems; /** < size of array (0 for no array) */
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/* The bit-size of each channel; must be one of 8, 16, 32, or 64 */
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uint8_t bit_size;
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/** generic register index. */
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unsigned index;
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/** only for debug purposes, can be NULL */
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const char *name;
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/** whether this register is local (per-function) or global (per-shader) */
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bool is_global;
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/**
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* If this flag is set to true, then accessing channels >= num_components
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* is well-defined, and simply spills over to the next array element. This
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* is useful for backends that can do per-component accessing, in
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* particular scalar backends. By setting this flag and making
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* num_components equal to 1, structures can be packed tightly into
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* registers and then registers can be accessed per-component to get to
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* each structure member, even if it crosses vec4 boundaries.
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*/
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bool is_packed;
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/** set of nir_srcs where this register is used (read from) */
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struct list_head uses;
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/** set of nir_dests where this register is defined (written to) */
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struct list_head defs;
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/** set of nir_ifs where this register is used as a condition */
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struct list_head if_uses;
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} nir_register;
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#define nir_foreach_register(reg, reg_list) \
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foreach_list_typed(nir_register, reg, node, reg_list)
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#define nir_foreach_register_safe(reg, reg_list) \
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foreach_list_typed_safe(nir_register, reg, node, reg_list)
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typedef enum {
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nir_instr_type_alu,
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nir_instr_type_call,
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nir_instr_type_tex,
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nir_instr_type_intrinsic,
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nir_instr_type_load_const,
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nir_instr_type_jump,
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nir_instr_type_ssa_undef,
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nir_instr_type_phi,
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nir_instr_type_parallel_copy,
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} nir_instr_type;
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typedef struct nir_instr {
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struct exec_node node;
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nir_instr_type type;
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struct nir_block *block;
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/** generic instruction index. */
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unsigned index;
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/* A temporary for optimization and analysis passes to use for storing
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* flags. For instance, DCE uses this to store the "dead/live" info.
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*/
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uint8_t pass_flags;
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} nir_instr;
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static inline nir_instr *
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nir_instr_next(nir_instr *instr)
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{
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struct exec_node *next = exec_node_get_next(&instr->node);
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if (exec_node_is_tail_sentinel(next))
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return NULL;
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else
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return exec_node_data(nir_instr, next, node);
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}
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static inline nir_instr *
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nir_instr_prev(nir_instr *instr)
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{
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struct exec_node *prev = exec_node_get_prev(&instr->node);
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if (exec_node_is_head_sentinel(prev))
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return NULL;
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else
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return exec_node_data(nir_instr, prev, node);
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}
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static inline bool
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nir_instr_is_first(const nir_instr *instr)
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{
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return exec_node_is_head_sentinel(exec_node_get_prev_const(&instr->node));
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}
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static inline bool
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nir_instr_is_last(const nir_instr *instr)
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{
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return exec_node_is_tail_sentinel(exec_node_get_next_const(&instr->node));
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}
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typedef struct nir_ssa_def {
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/** for debugging only, can be NULL */
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const char* name;
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/** generic SSA definition index. */
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unsigned index;
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/** Index into the live_in and live_out bitfields */
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unsigned live_index;
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/** Instruction which produces this SSA value. */
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nir_instr *parent_instr;
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/** set of nir_instrs where this register is used (read from) */
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struct list_head uses;
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/** set of nir_ifs where this register is used as a condition */
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struct list_head if_uses;
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uint8_t num_components;
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/* The bit-size of each channel; must be one of 8, 16, 32, or 64 */
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uint8_t bit_size;
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} nir_ssa_def;
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struct nir_src;
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typedef struct {
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nir_register *reg;
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struct nir_src *indirect; /** < NULL for no indirect offset */
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unsigned base_offset;
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/* TODO use-def chain goes here */
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} nir_reg_src;
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typedef struct {
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nir_instr *parent_instr;
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struct list_head def_link;
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nir_register *reg;
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struct nir_src *indirect; /** < NULL for no indirect offset */
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unsigned base_offset;
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/* TODO def-use chain goes here */
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} nir_reg_dest;
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struct nir_if;
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typedef struct nir_src {
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union {
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/** Instruction that consumes this value as a source. */
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nir_instr *parent_instr;
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struct nir_if *parent_if;
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};
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struct list_head use_link;
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union {
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nir_reg_src reg;
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nir_ssa_def *ssa;
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};
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bool is_ssa;
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|
} nir_src;
|
|
|
|
static inline nir_src
|
|
nir_src_init(void)
|
|
{
|
|
nir_src src = { { NULL } };
|
|
return src;
|
|
}
|
|
|
|
#define NIR_SRC_INIT nir_src_init()
|
|
|
|
#define nir_foreach_use(src, reg_or_ssa_def) \
|
|
list_for_each_entry(nir_src, src, &(reg_or_ssa_def)->uses, use_link)
|
|
|
|
#define nir_foreach_use_safe(src, reg_or_ssa_def) \
|
|
list_for_each_entry_safe(nir_src, src, &(reg_or_ssa_def)->uses, use_link)
|
|
|
|
#define nir_foreach_if_use(src, reg_or_ssa_def) \
|
|
list_for_each_entry(nir_src, src, &(reg_or_ssa_def)->if_uses, use_link)
|
|
|
|
#define nir_foreach_if_use_safe(src, reg_or_ssa_def) \
|
|
list_for_each_entry_safe(nir_src, src, &(reg_or_ssa_def)->if_uses, use_link)
|
|
|
|
typedef struct {
|
|
union {
|
|
nir_reg_dest reg;
|
|
nir_ssa_def ssa;
|
|
};
|
|
|
|
bool is_ssa;
|
|
} nir_dest;
|
|
|
|
static inline nir_dest
|
|
nir_dest_init(void)
|
|
{
|
|
nir_dest dest = { { { NULL } } };
|
|
return dest;
|
|
}
|
|
|
|
#define NIR_DEST_INIT nir_dest_init()
|
|
|
|
#define nir_foreach_def(dest, reg) \
|
|
list_for_each_entry(nir_dest, dest, &(reg)->defs, reg.def_link)
|
|
|
|
#define nir_foreach_def_safe(dest, reg) \
|
|
list_for_each_entry_safe(nir_dest, dest, &(reg)->defs, reg.def_link)
|
|
|
|
static inline nir_src
|
|
nir_src_for_ssa(nir_ssa_def *def)
|
|
{
|
|
nir_src src = NIR_SRC_INIT;
|
|
|
|
src.is_ssa = true;
|
|
src.ssa = def;
|
|
|
|
return src;
|
|
}
|
|
|
|
static inline nir_src
|
|
nir_src_for_reg(nir_register *reg)
|
|
{
|
|
nir_src src = NIR_SRC_INIT;
|
|
|
|
src.is_ssa = false;
|
|
src.reg.reg = reg;
|
|
src.reg.indirect = NULL;
|
|
src.reg.base_offset = 0;
|
|
|
|
return src;
|
|
}
|
|
|
|
static inline nir_dest
|
|
nir_dest_for_reg(nir_register *reg)
|
|
{
|
|
nir_dest dest = NIR_DEST_INIT;
|
|
|
|
dest.reg.reg = reg;
|
|
|
|
return dest;
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_src_bit_size(nir_src src)
|
|
{
|
|
return src.is_ssa ? src.ssa->bit_size : src.reg.reg->bit_size;
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_src_num_components(nir_src src)
|
|
{
|
|
return src.is_ssa ? src.ssa->num_components : src.reg.reg->num_components;
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_dest_bit_size(nir_dest dest)
|
|
{
|
|
return dest.is_ssa ? dest.ssa.bit_size : dest.reg.reg->bit_size;
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_dest_num_components(nir_dest dest)
|
|
{
|
|
return dest.is_ssa ? dest.ssa.num_components : dest.reg.reg->num_components;
|
|
}
|
|
|
|
void nir_src_copy(nir_src *dest, const nir_src *src, void *instr_or_if);
|
|
void nir_dest_copy(nir_dest *dest, const nir_dest *src, nir_instr *instr);
|
|
|
|
typedef struct {
|
|
nir_src src;
|
|
|
|
/**
|
|
* \name input modifiers
|
|
*/
|
|
/*@{*/
|
|
/**
|
|
* For inputs interpreted as floating point, flips the sign bit. For
|
|
* inputs interpreted as integers, performs the two's complement negation.
|
|
*/
|
|
bool negate;
|
|
|
|
/**
|
|
* Clears the sign bit for floating point values, and computes the integer
|
|
* absolute value for integers. Note that the negate modifier acts after
|
|
* the absolute value modifier, therefore if both are set then all inputs
|
|
* will become negative.
|
|
*/
|
|
bool abs;
|
|
/*@}*/
|
|
|
|
/**
|
|
* For each input component, says which component of the register it is
|
|
* chosen from. Note that which elements of the swizzle are used and which
|
|
* are ignored are based on the write mask for most opcodes - for example,
|
|
* a statement like "foo.xzw = bar.zyx" would have a writemask of 1101b and
|
|
* a swizzle of {2, x, 1, 0} where x means "don't care."
|
|
*/
|
|
uint8_t swizzle[4];
|
|
} nir_alu_src;
|
|
|
|
typedef struct {
|
|
nir_dest dest;
|
|
|
|
/**
|
|
* \name saturate output modifier
|
|
*
|
|
* Only valid for opcodes that output floating-point numbers. Clamps the
|
|
* output to between 0.0 and 1.0 inclusive.
|
|
*/
|
|
|
|
bool saturate;
|
|
|
|
unsigned write_mask : 4; /* ignored if dest.is_ssa is true */
|
|
} nir_alu_dest;
|
|
|
|
typedef enum {
|
|
nir_type_invalid = 0, /* Not a valid type */
|
|
nir_type_float,
|
|
nir_type_int,
|
|
nir_type_uint,
|
|
nir_type_bool,
|
|
nir_type_bool32 = 32 | nir_type_bool,
|
|
nir_type_int8 = 8 | nir_type_int,
|
|
nir_type_int16 = 16 | nir_type_int,
|
|
nir_type_int32 = 32 | nir_type_int,
|
|
nir_type_int64 = 64 | nir_type_int,
|
|
nir_type_uint8 = 8 | nir_type_uint,
|
|
nir_type_uint16 = 16 | nir_type_uint,
|
|
nir_type_uint32 = 32 | nir_type_uint,
|
|
nir_type_uint64 = 64 | nir_type_uint,
|
|
nir_type_float16 = 16 | nir_type_float,
|
|
nir_type_float32 = 32 | nir_type_float,
|
|
nir_type_float64 = 64 | nir_type_float,
|
|
} nir_alu_type;
|
|
|
|
#define NIR_ALU_TYPE_SIZE_MASK 0xfffffff8
|
|
#define NIR_ALU_TYPE_BASE_TYPE_MASK 0x00000007
|
|
|
|
static inline unsigned
|
|
nir_alu_type_get_type_size(nir_alu_type type)
|
|
{
|
|
return type & NIR_ALU_TYPE_SIZE_MASK;
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_alu_type_get_base_type(nir_alu_type type)
|
|
{
|
|
return type & NIR_ALU_TYPE_BASE_TYPE_MASK;
|
|
}
|
|
|
|
static inline nir_alu_type
|
|
nir_get_nir_type_for_glsl_base_type(enum glsl_base_type base_type)
|
|
{
|
|
switch (base_type) {
|
|
case GLSL_TYPE_BOOL:
|
|
return nir_type_bool32;
|
|
break;
|
|
case GLSL_TYPE_UINT:
|
|
return nir_type_uint32;
|
|
break;
|
|
case GLSL_TYPE_INT:
|
|
return nir_type_int32;
|
|
break;
|
|
case GLSL_TYPE_UINT16:
|
|
return nir_type_uint16;
|
|
break;
|
|
case GLSL_TYPE_INT16:
|
|
return nir_type_int16;
|
|
break;
|
|
case GLSL_TYPE_UINT8:
|
|
return nir_type_uint8;
|
|
case GLSL_TYPE_INT8:
|
|
return nir_type_int8;
|
|
case GLSL_TYPE_UINT64:
|
|
return nir_type_uint64;
|
|
break;
|
|
case GLSL_TYPE_INT64:
|
|
return nir_type_int64;
|
|
break;
|
|
case GLSL_TYPE_FLOAT:
|
|
return nir_type_float32;
|
|
break;
|
|
case GLSL_TYPE_FLOAT16:
|
|
return nir_type_float16;
|
|
break;
|
|
case GLSL_TYPE_DOUBLE:
|
|
return nir_type_float64;
|
|
break;
|
|
default:
|
|
unreachable("unknown type");
|
|
}
|
|
}
|
|
|
|
static inline nir_alu_type
|
|
nir_get_nir_type_for_glsl_type(const struct glsl_type *type)
|
|
{
|
|
return nir_get_nir_type_for_glsl_base_type(glsl_get_base_type(type));
|
|
}
|
|
|
|
nir_op nir_type_conversion_op(nir_alu_type src, nir_alu_type dst,
|
|
nir_rounding_mode rnd);
|
|
|
|
typedef enum {
|
|
NIR_OP_IS_COMMUTATIVE = (1 << 0),
|
|
NIR_OP_IS_ASSOCIATIVE = (1 << 1),
|
|
} nir_op_algebraic_property;
|
|
|
|
typedef struct {
|
|
const char *name;
|
|
|
|
unsigned num_inputs;
|
|
|
|
/**
|
|
* The number of components in the output
|
|
*
|
|
* If non-zero, this is the size of the output and input sizes are
|
|
* explicitly given; swizzle and writemask are still in effect, but if
|
|
* the output component is masked out, then the input component may
|
|
* still be in use.
|
|
*
|
|
* If zero, the opcode acts in the standard, per-component manner; the
|
|
* operation is performed on each component (except the ones that are
|
|
* masked out) with the input being taken from the input swizzle for
|
|
* that component.
|
|
*
|
|
* The size of some of the inputs may be given (i.e. non-zero) even
|
|
* though output_size is zero; in that case, the inputs with a zero
|
|
* size act per-component, while the inputs with non-zero size don't.
|
|
*/
|
|
unsigned output_size;
|
|
|
|
/**
|
|
* The type of vector that the instruction outputs. Note that the
|
|
* staurate modifier is only allowed on outputs with the float type.
|
|
*/
|
|
|
|
nir_alu_type output_type;
|
|
|
|
/**
|
|
* The number of components in each input
|
|
*/
|
|
unsigned input_sizes[4];
|
|
|
|
/**
|
|
* The type of vector that each input takes. Note that negate and
|
|
* absolute value are only allowed on inputs with int or float type and
|
|
* behave differently on the two.
|
|
*/
|
|
nir_alu_type input_types[4];
|
|
|
|
nir_op_algebraic_property algebraic_properties;
|
|
} nir_op_info;
|
|
|
|
extern const nir_op_info nir_op_infos[nir_num_opcodes];
|
|
|
|
typedef struct nir_alu_instr {
|
|
nir_instr instr;
|
|
nir_op op;
|
|
|
|
/** Indicates that this ALU instruction generates an exact value
|
|
*
|
|
* This is kind of a mixture of GLSL "precise" and "invariant" and not
|
|
* really equivalent to either. This indicates that the value generated by
|
|
* this operation is high-precision and any code transformations that touch
|
|
* it must ensure that the resulting value is bit-for-bit identical to the
|
|
* original.
|
|
*/
|
|
bool exact;
|
|
|
|
nir_alu_dest dest;
|
|
nir_alu_src src[];
|
|
} nir_alu_instr;
|
|
|
|
void nir_alu_src_copy(nir_alu_src *dest, const nir_alu_src *src,
|
|
nir_alu_instr *instr);
|
|
void nir_alu_dest_copy(nir_alu_dest *dest, const nir_alu_dest *src,
|
|
nir_alu_instr *instr);
|
|
|
|
/* is this source channel used? */
|
|
static inline bool
|
|
nir_alu_instr_channel_used(const nir_alu_instr *instr, unsigned src,
|
|
unsigned channel)
|
|
{
|
|
if (nir_op_infos[instr->op].input_sizes[src] > 0)
|
|
return channel < nir_op_infos[instr->op].input_sizes[src];
|
|
|
|
return (instr->dest.write_mask >> channel) & 1;
|
|
}
|
|
|
|
/*
|
|
* For instructions whose destinations are SSA, get the number of channels
|
|
* used for a source
|
|
*/
|
|
static inline unsigned
|
|
nir_ssa_alu_instr_src_components(const nir_alu_instr *instr, unsigned src)
|
|
{
|
|
assert(instr->dest.dest.is_ssa);
|
|
|
|
if (nir_op_infos[instr->op].input_sizes[src] > 0)
|
|
return nir_op_infos[instr->op].input_sizes[src];
|
|
|
|
return instr->dest.dest.ssa.num_components;
|
|
}
|
|
|
|
bool nir_alu_srcs_equal(const nir_alu_instr *alu1, const nir_alu_instr *alu2,
|
|
unsigned src1, unsigned src2);
|
|
|
|
typedef enum {
|
|
nir_deref_type_var,
|
|
nir_deref_type_array,
|
|
nir_deref_type_struct
|
|
} nir_deref_type;
|
|
|
|
typedef struct nir_deref {
|
|
nir_deref_type deref_type;
|
|
struct nir_deref *child;
|
|
const struct glsl_type *type;
|
|
} nir_deref;
|
|
|
|
typedef struct {
|
|
nir_deref deref;
|
|
|
|
nir_variable *var;
|
|
} nir_deref_var;
|
|
|
|
/* This enum describes how the array is referenced. If the deref is
|
|
* direct then the base_offset is used. If the deref is indirect then
|
|
* offset is given by base_offset + indirect. If the deref is a wildcard
|
|
* then the deref refers to all of the elements of the array at the same
|
|
* time. Wildcard dereferences are only ever allowed in copy_var
|
|
* intrinsics and the source and destination derefs must have matching
|
|
* wildcards.
|
|
*/
|
|
typedef enum {
|
|
nir_deref_array_type_direct,
|
|
nir_deref_array_type_indirect,
|
|
nir_deref_array_type_wildcard,
|
|
} nir_deref_array_type;
|
|
|
|
typedef struct {
|
|
nir_deref deref;
|
|
|
|
nir_deref_array_type deref_array_type;
|
|
unsigned base_offset;
|
|
nir_src indirect;
|
|
} nir_deref_array;
|
|
|
|
typedef struct {
|
|
nir_deref deref;
|
|
|
|
unsigned index;
|
|
} nir_deref_struct;
|
|
|
|
NIR_DEFINE_CAST(nir_deref_as_var, nir_deref, nir_deref_var, deref,
|
|
deref_type, nir_deref_type_var)
|
|
NIR_DEFINE_CAST(nir_deref_as_array, nir_deref, nir_deref_array, deref,
|
|
deref_type, nir_deref_type_array)
|
|
NIR_DEFINE_CAST(nir_deref_as_struct, nir_deref, nir_deref_struct, deref,
|
|
deref_type, nir_deref_type_struct)
|
|
|
|
/* Returns the last deref in the chain. */
|
|
static inline nir_deref *
|
|
nir_deref_tail(nir_deref *deref)
|
|
{
|
|
while (deref->child)
|
|
deref = deref->child;
|
|
return deref;
|
|
}
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
|
|
unsigned num_params;
|
|
nir_deref_var **params;
|
|
nir_deref_var *return_deref;
|
|
|
|
struct nir_function *callee;
|
|
} nir_call_instr;
|
|
|
|
#include "nir_intrinsics.h"
|
|
|
|
#define NIR_INTRINSIC_MAX_CONST_INDEX 3
|
|
|
|
/** Represents an intrinsic
|
|
*
|
|
* An intrinsic is an instruction type for handling things that are
|
|
* more-or-less regular operations but don't just consume and produce SSA
|
|
* values like ALU operations do. Intrinsics are not for things that have
|
|
* special semantic meaning such as phi nodes and parallel copies.
|
|
* Examples of intrinsics include variable load/store operations, system
|
|
* value loads, and the like. Even though texturing more-or-less falls
|
|
* under this category, texturing is its own instruction type because
|
|
* trying to represent texturing with intrinsics would lead to a
|
|
* combinatorial explosion of intrinsic opcodes.
|
|
*
|
|
* By having a single instruction type for handling a lot of different
|
|
* cases, optimization passes can look for intrinsics and, for the most
|
|
* part, completely ignore them. Each intrinsic type also has a few
|
|
* possible flags that govern whether or not they can be reordered or
|
|
* eliminated. That way passes like dead code elimination can still work
|
|
* on intrisics without understanding the meaning of each.
|
|
*
|
|
* Each intrinsic has some number of constant indices, some number of
|
|
* variables, and some number of sources. What these sources, variables,
|
|
* and indices mean depends on the intrinsic and is documented with the
|
|
* intrinsic declaration in nir_intrinsics.h. Intrinsics and texture
|
|
* instructions are the only types of instruction that can operate on
|
|
* variables.
|
|
*/
|
|
typedef struct {
|
|
nir_instr instr;
|
|
|
|
nir_intrinsic_op intrinsic;
|
|
|
|
nir_dest dest;
|
|
|
|
/** number of components if this is a vectorized intrinsic
|
|
*
|
|
* Similarly to ALU operations, some intrinsics are vectorized.
|
|
* An intrinsic is vectorized if nir_intrinsic_infos.dest_components == 0.
|
|
* For vectorized intrinsics, the num_components field specifies the
|
|
* number of destination components and the number of source components
|
|
* for all sources with nir_intrinsic_infos.src_components[i] == 0.
|
|
*/
|
|
uint8_t num_components;
|
|
|
|
int const_index[NIR_INTRINSIC_MAX_CONST_INDEX];
|
|
|
|
nir_deref_var *variables[2];
|
|
|
|
nir_src src[];
|
|
} nir_intrinsic_instr;
|
|
|
|
/**
|
|
* \name NIR intrinsics semantic flags
|
|
*
|
|
* information about what the compiler can do with the intrinsics.
|
|
*
|
|
* \sa nir_intrinsic_info::flags
|
|
*/
|
|
typedef enum {
|
|
/**
|
|
* whether the intrinsic can be safely eliminated if none of its output
|
|
* value is not being used.
|
|
*/
|
|
NIR_INTRINSIC_CAN_ELIMINATE = (1 << 0),
|
|
|
|
/**
|
|
* Whether the intrinsic can be reordered with respect to any other
|
|
* intrinsic, i.e. whether the only reordering dependencies of the
|
|
* intrinsic are due to the register reads/writes.
|
|
*/
|
|
NIR_INTRINSIC_CAN_REORDER = (1 << 1),
|
|
} nir_intrinsic_semantic_flag;
|
|
|
|
/**
|
|
* \name NIR intrinsics const-index flag
|
|
*
|
|
* Indicates the usage of a const_index slot.
|
|
*
|
|
* \sa nir_intrinsic_info::index_map
|
|
*/
|
|
typedef enum {
|
|
/**
|
|
* Generally instructions that take a offset src argument, can encode
|
|
* a constant 'base' value which is added to the offset.
|
|
*/
|
|
NIR_INTRINSIC_BASE = 1,
|
|
|
|
/**
|
|
* For store instructions, a writemask for the store.
|
|
*/
|
|
NIR_INTRINSIC_WRMASK = 2,
|
|
|
|
/**
|
|
* The stream-id for GS emit_vertex/end_primitive intrinsics.
|
|
*/
|
|
NIR_INTRINSIC_STREAM_ID = 3,
|
|
|
|
/**
|
|
* The clip-plane id for load_user_clip_plane intrinsic.
|
|
*/
|
|
NIR_INTRINSIC_UCP_ID = 4,
|
|
|
|
/**
|
|
* The amount of data, starting from BASE, that this instruction may
|
|
* access. This is used to provide bounds if the offset is not constant.
|
|
*/
|
|
NIR_INTRINSIC_RANGE = 5,
|
|
|
|
/**
|
|
* The Vulkan descriptor set for vulkan_resource_index intrinsic.
|
|
*/
|
|
NIR_INTRINSIC_DESC_SET = 6,
|
|
|
|
/**
|
|
* The Vulkan descriptor set binding for vulkan_resource_index intrinsic.
|
|
*/
|
|
NIR_INTRINSIC_BINDING = 7,
|
|
|
|
/**
|
|
* Component offset.
|
|
*/
|
|
NIR_INTRINSIC_COMPONENT = 8,
|
|
|
|
/**
|
|
* Interpolation mode (only meaningful for FS inputs).
|
|
*/
|
|
NIR_INTRINSIC_INTERP_MODE = 9,
|
|
|
|
/**
|
|
* A binary nir_op to use when performing a reduction or scan operation
|
|
*/
|
|
NIR_INTRINSIC_REDUCTION_OP = 10,
|
|
|
|
/**
|
|
* Cluster size for reduction operations
|
|
*/
|
|
NIR_INTRINSIC_CLUSTER_SIZE = 11,
|
|
|
|
NIR_INTRINSIC_NUM_INDEX_FLAGS,
|
|
|
|
} nir_intrinsic_index_flag;
|
|
|
|
#define NIR_INTRINSIC_MAX_INPUTS 4
|
|
|
|
typedef struct {
|
|
const char *name;
|
|
|
|
unsigned num_srcs; /** < number of register/SSA inputs */
|
|
|
|
/** number of components of each input register
|
|
*
|
|
* If this value is 0, the number of components is given by the
|
|
* num_components field of nir_intrinsic_instr.
|
|
*/
|
|
unsigned src_components[NIR_INTRINSIC_MAX_INPUTS];
|
|
|
|
bool has_dest;
|
|
|
|
/** number of components of the output register
|
|
*
|
|
* If this value is 0, the number of components is given by the
|
|
* num_components field of nir_intrinsic_instr.
|
|
*/
|
|
unsigned dest_components;
|
|
|
|
/** the number of inputs/outputs that are variables */
|
|
unsigned num_variables;
|
|
|
|
/** the number of constant indices used by the intrinsic */
|
|
unsigned num_indices;
|
|
|
|
/** indicates the usage of intr->const_index[n] */
|
|
unsigned index_map[NIR_INTRINSIC_NUM_INDEX_FLAGS];
|
|
|
|
/** semantic flags for calls to this intrinsic */
|
|
nir_intrinsic_semantic_flag flags;
|
|
} nir_intrinsic_info;
|
|
|
|
extern const nir_intrinsic_info nir_intrinsic_infos[nir_num_intrinsics];
|
|
|
|
static inline unsigned
|
|
nir_intrinsic_src_components(nir_intrinsic_instr *intr, unsigned srcn)
|
|
{
|
|
const nir_intrinsic_info *info = &nir_intrinsic_infos[intr->intrinsic];
|
|
assert(srcn < info->num_srcs);
|
|
if (info->src_components[srcn])
|
|
return info->src_components[srcn];
|
|
else
|
|
return intr->num_components;
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_intrinsic_dest_components(nir_intrinsic_instr *intr)
|
|
{
|
|
const nir_intrinsic_info *info = &nir_intrinsic_infos[intr->intrinsic];
|
|
if (!info->has_dest)
|
|
return 0;
|
|
else if (info->dest_components)
|
|
return info->dest_components;
|
|
else
|
|
return intr->num_components;
|
|
}
|
|
|
|
#define INTRINSIC_IDX_ACCESSORS(name, flag, type) \
|
|
static inline type \
|
|
nir_intrinsic_##name(const nir_intrinsic_instr *instr) \
|
|
{ \
|
|
const nir_intrinsic_info *info = &nir_intrinsic_infos[instr->intrinsic]; \
|
|
assert(info->index_map[NIR_INTRINSIC_##flag] > 0); \
|
|
return instr->const_index[info->index_map[NIR_INTRINSIC_##flag] - 1]; \
|
|
} \
|
|
static inline void \
|
|
nir_intrinsic_set_##name(nir_intrinsic_instr *instr, type val) \
|
|
{ \
|
|
const nir_intrinsic_info *info = &nir_intrinsic_infos[instr->intrinsic]; \
|
|
assert(info->index_map[NIR_INTRINSIC_##flag] > 0); \
|
|
instr->const_index[info->index_map[NIR_INTRINSIC_##flag] - 1] = val; \
|
|
}
|
|
|
|
INTRINSIC_IDX_ACCESSORS(write_mask, WRMASK, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(base, BASE, int)
|
|
INTRINSIC_IDX_ACCESSORS(stream_id, STREAM_ID, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(ucp_id, UCP_ID, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(range, RANGE, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(desc_set, DESC_SET, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(binding, BINDING, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(component, COMPONENT, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(interp_mode, INTERP_MODE, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(reduction_op, REDUCTION_OP, unsigned)
|
|
INTRINSIC_IDX_ACCESSORS(cluster_size, CLUSTER_SIZE, unsigned)
|
|
|
|
/**
|
|
* \group texture information
|
|
*
|
|
* This gives semantic information about textures which is useful to the
|
|
* frontend, the backend, and lowering passes, but not the optimizer.
|
|
*/
|
|
|
|
typedef enum {
|
|
nir_tex_src_coord,
|
|
nir_tex_src_projector,
|
|
nir_tex_src_comparator, /* shadow comparator */
|
|
nir_tex_src_offset,
|
|
nir_tex_src_bias,
|
|
nir_tex_src_lod,
|
|
nir_tex_src_ms_index, /* MSAA sample index */
|
|
nir_tex_src_ms_mcs, /* MSAA compression value */
|
|
nir_tex_src_ddx,
|
|
nir_tex_src_ddy,
|
|
nir_tex_src_texture_offset, /* < dynamically uniform indirect offset */
|
|
nir_tex_src_sampler_offset, /* < dynamically uniform indirect offset */
|
|
nir_tex_src_plane, /* < selects plane for planar textures */
|
|
nir_num_tex_src_types
|
|
} nir_tex_src_type;
|
|
|
|
typedef struct {
|
|
nir_src src;
|
|
nir_tex_src_type src_type;
|
|
} nir_tex_src;
|
|
|
|
typedef enum {
|
|
nir_texop_tex, /**< Regular texture look-up */
|
|
nir_texop_txb, /**< Texture look-up with LOD bias */
|
|
nir_texop_txl, /**< Texture look-up with explicit LOD */
|
|
nir_texop_txd, /**< Texture look-up with partial derivatives */
|
|
nir_texop_txf, /**< Texel fetch with explicit LOD */
|
|
nir_texop_txf_ms, /**< Multisample texture fetch */
|
|
nir_texop_txf_ms_mcs, /**< Multisample compression value fetch */
|
|
nir_texop_txs, /**< Texture size */
|
|
nir_texop_lod, /**< Texture lod query */
|
|
nir_texop_tg4, /**< Texture gather */
|
|
nir_texop_query_levels, /**< Texture levels query */
|
|
nir_texop_texture_samples, /**< Texture samples query */
|
|
nir_texop_samples_identical, /**< Query whether all samples are definitely
|
|
* identical.
|
|
*/
|
|
} nir_texop;
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
|
|
enum glsl_sampler_dim sampler_dim;
|
|
nir_alu_type dest_type;
|
|
|
|
nir_texop op;
|
|
nir_dest dest;
|
|
nir_tex_src *src;
|
|
unsigned num_srcs, coord_components;
|
|
bool is_array, is_shadow;
|
|
|
|
/**
|
|
* If is_shadow is true, whether this is the old-style shadow that outputs 4
|
|
* components or the new-style shadow that outputs 1 component.
|
|
*/
|
|
bool is_new_style_shadow;
|
|
|
|
/* gather component selector */
|
|
unsigned component : 2;
|
|
|
|
/** The texture index
|
|
*
|
|
* If this texture instruction has a nir_tex_src_texture_offset source,
|
|
* then the texture index is given by texture_index + texture_offset.
|
|
*/
|
|
unsigned texture_index;
|
|
|
|
/** The size of the texture array or 0 if it's not an array */
|
|
unsigned texture_array_size;
|
|
|
|
/** The texture deref
|
|
*
|
|
* If this is null, use texture_index instead.
|
|
*/
|
|
nir_deref_var *texture;
|
|
|
|
/** The sampler index
|
|
*
|
|
* The following operations do not require a sampler and, as such, this
|
|
* field should be ignored:
|
|
* - nir_texop_txf
|
|
* - nir_texop_txf_ms
|
|
* - nir_texop_txs
|
|
* - nir_texop_lod
|
|
* - nir_texop_query_levels
|
|
* - nir_texop_texture_samples
|
|
* - nir_texop_samples_identical
|
|
*
|
|
* If this texture instruction has a nir_tex_src_sampler_offset source,
|
|
* then the sampler index is given by sampler_index + sampler_offset.
|
|
*/
|
|
unsigned sampler_index;
|
|
|
|
/** The sampler deref
|
|
*
|
|
* If this is null, use sampler_index instead.
|
|
*/
|
|
nir_deref_var *sampler;
|
|
} nir_tex_instr;
|
|
|
|
static inline unsigned
|
|
nir_tex_instr_dest_size(const nir_tex_instr *instr)
|
|
{
|
|
switch (instr->op) {
|
|
case nir_texop_txs: {
|
|
unsigned ret;
|
|
switch (instr->sampler_dim) {
|
|
case GLSL_SAMPLER_DIM_1D:
|
|
case GLSL_SAMPLER_DIM_BUF:
|
|
ret = 1;
|
|
break;
|
|
case GLSL_SAMPLER_DIM_2D:
|
|
case GLSL_SAMPLER_DIM_CUBE:
|
|
case GLSL_SAMPLER_DIM_MS:
|
|
case GLSL_SAMPLER_DIM_RECT:
|
|
case GLSL_SAMPLER_DIM_EXTERNAL:
|
|
case GLSL_SAMPLER_DIM_SUBPASS:
|
|
ret = 2;
|
|
break;
|
|
case GLSL_SAMPLER_DIM_3D:
|
|
ret = 3;
|
|
break;
|
|
default:
|
|
unreachable("not reached");
|
|
}
|
|
if (instr->is_array)
|
|
ret++;
|
|
return ret;
|
|
}
|
|
|
|
case nir_texop_lod:
|
|
return 2;
|
|
|
|
case nir_texop_texture_samples:
|
|
case nir_texop_query_levels:
|
|
case nir_texop_samples_identical:
|
|
return 1;
|
|
|
|
default:
|
|
if (instr->is_shadow && instr->is_new_style_shadow)
|
|
return 1;
|
|
|
|
return 4;
|
|
}
|
|
}
|
|
|
|
/* Returns true if this texture operation queries something about the texture
|
|
* rather than actually sampling it.
|
|
*/
|
|
static inline bool
|
|
nir_tex_instr_is_query(const nir_tex_instr *instr)
|
|
{
|
|
switch (instr->op) {
|
|
case nir_texop_txs:
|
|
case nir_texop_lod:
|
|
case nir_texop_texture_samples:
|
|
case nir_texop_query_levels:
|
|
case nir_texop_txf_ms_mcs:
|
|
return true;
|
|
case nir_texop_tex:
|
|
case nir_texop_txb:
|
|
case nir_texop_txl:
|
|
case nir_texop_txd:
|
|
case nir_texop_txf:
|
|
case nir_texop_txf_ms:
|
|
case nir_texop_tg4:
|
|
return false;
|
|
default:
|
|
unreachable("Invalid texture opcode");
|
|
}
|
|
}
|
|
|
|
static inline bool
|
|
nir_alu_instr_is_comparison(const nir_alu_instr *instr)
|
|
{
|
|
switch (instr->op) {
|
|
case nir_op_flt:
|
|
case nir_op_fge:
|
|
case nir_op_feq:
|
|
case nir_op_fne:
|
|
case nir_op_ilt:
|
|
case nir_op_ult:
|
|
case nir_op_ige:
|
|
case nir_op_uge:
|
|
case nir_op_ieq:
|
|
case nir_op_ine:
|
|
case nir_op_i2b:
|
|
case nir_op_f2b:
|
|
case nir_op_inot:
|
|
case nir_op_fnot:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
static inline nir_alu_type
|
|
nir_tex_instr_src_type(const nir_tex_instr *instr, unsigned src)
|
|
{
|
|
switch (instr->src[src].src_type) {
|
|
case nir_tex_src_coord:
|
|
switch (instr->op) {
|
|
case nir_texop_txf:
|
|
case nir_texop_txf_ms:
|
|
case nir_texop_txf_ms_mcs:
|
|
case nir_texop_samples_identical:
|
|
return nir_type_int;
|
|
|
|
default:
|
|
return nir_type_float;
|
|
}
|
|
|
|
case nir_tex_src_lod:
|
|
switch (instr->op) {
|
|
case nir_texop_txs:
|
|
case nir_texop_txf:
|
|
return nir_type_int;
|
|
|
|
default:
|
|
return nir_type_float;
|
|
}
|
|
|
|
case nir_tex_src_projector:
|
|
case nir_tex_src_comparator:
|
|
case nir_tex_src_bias:
|
|
case nir_tex_src_ddx:
|
|
case nir_tex_src_ddy:
|
|
return nir_type_float;
|
|
|
|
case nir_tex_src_offset:
|
|
case nir_tex_src_ms_index:
|
|
case nir_tex_src_texture_offset:
|
|
case nir_tex_src_sampler_offset:
|
|
return nir_type_int;
|
|
|
|
default:
|
|
unreachable("Invalid texture source type");
|
|
}
|
|
}
|
|
|
|
static inline unsigned
|
|
nir_tex_instr_src_size(const nir_tex_instr *instr, unsigned src)
|
|
{
|
|
if (instr->src[src].src_type == nir_tex_src_coord)
|
|
return instr->coord_components;
|
|
|
|
/* The MCS value is expected to be a vec4 returned by a txf_ms_mcs */
|
|
if (instr->src[src].src_type == nir_tex_src_ms_mcs)
|
|
return 4;
|
|
|
|
if (instr->src[src].src_type == nir_tex_src_ddx ||
|
|
instr->src[src].src_type == nir_tex_src_ddy) {
|
|
if (instr->is_array)
|
|
return instr->coord_components - 1;
|
|
else
|
|
return instr->coord_components;
|
|
}
|
|
|
|
/* Usual APIs don't allow cube + offset, but we allow it, with 2 coords for
|
|
* the offset, since a cube maps to a single face.
|
|
*/
|
|
if (instr->src[src].src_type == nir_tex_src_offset) {
|
|
if (instr->sampler_dim == GLSL_SAMPLER_DIM_CUBE)
|
|
return 2;
|
|
else if (instr->is_array)
|
|
return instr->coord_components - 1;
|
|
else
|
|
return instr->coord_components;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static inline int
|
|
nir_tex_instr_src_index(const nir_tex_instr *instr, nir_tex_src_type type)
|
|
{
|
|
for (unsigned i = 0; i < instr->num_srcs; i++)
|
|
if (instr->src[i].src_type == type)
|
|
return (int) i;
|
|
|
|
return -1;
|
|
}
|
|
|
|
void nir_tex_instr_add_src(nir_tex_instr *tex,
|
|
nir_tex_src_type src_type,
|
|
nir_src src);
|
|
|
|
void nir_tex_instr_remove_src(nir_tex_instr *tex, unsigned src_idx);
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
|
|
nir_const_value value;
|
|
|
|
nir_ssa_def def;
|
|
} nir_load_const_instr;
|
|
|
|
typedef enum {
|
|
nir_jump_return,
|
|
nir_jump_break,
|
|
nir_jump_continue,
|
|
} nir_jump_type;
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
nir_jump_type type;
|
|
} nir_jump_instr;
|
|
|
|
/* creates a new SSA variable in an undefined state */
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
nir_ssa_def def;
|
|
} nir_ssa_undef_instr;
|
|
|
|
typedef struct {
|
|
struct exec_node node;
|
|
|
|
/* The predecessor block corresponding to this source */
|
|
struct nir_block *pred;
|
|
|
|
nir_src src;
|
|
} nir_phi_src;
|
|
|
|
#define nir_foreach_phi_src(phi_src, phi) \
|
|
foreach_list_typed(nir_phi_src, phi_src, node, &(phi)->srcs)
|
|
#define nir_foreach_phi_src_safe(phi_src, phi) \
|
|
foreach_list_typed_safe(nir_phi_src, phi_src, node, &(phi)->srcs)
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
|
|
struct exec_list srcs; /** < list of nir_phi_src */
|
|
|
|
nir_dest dest;
|
|
} nir_phi_instr;
|
|
|
|
typedef struct {
|
|
struct exec_node node;
|
|
nir_src src;
|
|
nir_dest dest;
|
|
} nir_parallel_copy_entry;
|
|
|
|
#define nir_foreach_parallel_copy_entry(entry, pcopy) \
|
|
foreach_list_typed(nir_parallel_copy_entry, entry, node, &(pcopy)->entries)
|
|
|
|
typedef struct {
|
|
nir_instr instr;
|
|
|
|
/* A list of nir_parallel_copy_entrys. The sources of all of the
|
|
* entries are copied to the corresponding destinations "in parallel".
|
|
* In other words, if we have two entries: a -> b and b -> a, the values
|
|
* get swapped.
|
|
*/
|
|
struct exec_list entries;
|
|
} nir_parallel_copy_instr;
|
|
|
|
NIR_DEFINE_CAST(nir_instr_as_alu, nir_instr, nir_alu_instr, instr,
|
|
type, nir_instr_type_alu)
|
|
NIR_DEFINE_CAST(nir_instr_as_call, nir_instr, nir_call_instr, instr,
|
|
type, nir_instr_type_call)
|
|
NIR_DEFINE_CAST(nir_instr_as_jump, nir_instr, nir_jump_instr, instr,
|
|
type, nir_instr_type_jump)
|
|
NIR_DEFINE_CAST(nir_instr_as_tex, nir_instr, nir_tex_instr, instr,
|
|
type, nir_instr_type_tex)
|
|
NIR_DEFINE_CAST(nir_instr_as_intrinsic, nir_instr, nir_intrinsic_instr, instr,
|
|
type, nir_instr_type_intrinsic)
|
|
NIR_DEFINE_CAST(nir_instr_as_load_const, nir_instr, nir_load_const_instr, instr,
|
|
type, nir_instr_type_load_const)
|
|
NIR_DEFINE_CAST(nir_instr_as_ssa_undef, nir_instr, nir_ssa_undef_instr, instr,
|
|
type, nir_instr_type_ssa_undef)
|
|
NIR_DEFINE_CAST(nir_instr_as_phi, nir_instr, nir_phi_instr, instr,
|
|
type, nir_instr_type_phi)
|
|
NIR_DEFINE_CAST(nir_instr_as_parallel_copy, nir_instr,
|
|
nir_parallel_copy_instr, instr,
|
|
type, nir_instr_type_parallel_copy)
|
|
|
|
/*
|
|
* Control flow
|
|
*
|
|
* Control flow consists of a tree of control flow nodes, which include
|
|
* if-statements and loops. The leaves of the tree are basic blocks, lists of
|
|
* instructions that always run start-to-finish. Each basic block also keeps
|
|
* track of its successors (blocks which may run immediately after the current
|
|
* block) and predecessors (blocks which could have run immediately before the
|
|
* current block). Each function also has a start block and an end block which
|
|
* all return statements point to (which is always empty). Together, all the
|
|
* blocks with their predecessors and successors make up the control flow
|
|
* graph (CFG) of the function. There are helpers that modify the tree of
|
|
* control flow nodes while modifying the CFG appropriately; these should be
|
|
* used instead of modifying the tree directly.
|
|
*/
|
|
|
|
typedef enum {
|
|
nir_cf_node_block,
|
|
nir_cf_node_if,
|
|
nir_cf_node_loop,
|
|
nir_cf_node_function
|
|
} nir_cf_node_type;
|
|
|
|
typedef struct nir_cf_node {
|
|
struct exec_node node;
|
|
nir_cf_node_type type;
|
|
struct nir_cf_node *parent;
|
|
} nir_cf_node;
|
|
|
|
typedef struct nir_block {
|
|
nir_cf_node cf_node;
|
|
|
|
struct exec_list instr_list; /** < list of nir_instr */
|
|
|
|
/** generic block index; generated by nir_index_blocks */
|
|
unsigned index;
|
|
|
|
/*
|
|
* Each block can only have up to 2 successors, so we put them in a simple
|
|
* array - no need for anything more complicated.
|
|
*/
|
|
struct nir_block *successors[2];
|
|
|
|
/* Set of nir_block predecessors in the CFG */
|
|
struct set *predecessors;
|
|
|
|
/*
|
|
* this node's immediate dominator in the dominance tree - set to NULL for
|
|
* the start block.
|
|
*/
|
|
struct nir_block *imm_dom;
|
|
|
|
/* This node's children in the dominance tree */
|
|
unsigned num_dom_children;
|
|
struct nir_block **dom_children;
|
|
|
|
/* Set of nir_blocks on the dominance frontier of this block */
|
|
struct set *dom_frontier;
|
|
|
|
/*
|
|
* These two indices have the property that dom_{pre,post}_index for each
|
|
* child of this block in the dominance tree will always be between
|
|
* dom_pre_index and dom_post_index for this block, which makes testing if
|
|
* a given block is dominated by another block an O(1) operation.
|
|
*/
|
|
unsigned dom_pre_index, dom_post_index;
|
|
|
|
/* live in and out for this block; used for liveness analysis */
|
|
BITSET_WORD *live_in;
|
|
BITSET_WORD *live_out;
|
|
} nir_block;
|
|
|
|
static inline nir_instr *
|
|
nir_block_first_instr(nir_block *block)
|
|
{
|
|
struct exec_node *head = exec_list_get_head(&block->instr_list);
|
|
return exec_node_data(nir_instr, head, node);
|
|
}
|
|
|
|
static inline nir_instr *
|
|
nir_block_last_instr(nir_block *block)
|
|
{
|
|
struct exec_node *tail = exec_list_get_tail(&block->instr_list);
|
|
return exec_node_data(nir_instr, tail, node);
|
|
}
|
|
|
|
#define nir_foreach_instr(instr, block) \
|
|
foreach_list_typed(nir_instr, instr, node, &(block)->instr_list)
|
|
#define nir_foreach_instr_reverse(instr, block) \
|
|
foreach_list_typed_reverse(nir_instr, instr, node, &(block)->instr_list)
|
|
#define nir_foreach_instr_safe(instr, block) \
|
|
foreach_list_typed_safe(nir_instr, instr, node, &(block)->instr_list)
|
|
#define nir_foreach_instr_reverse_safe(instr, block) \
|
|
foreach_list_typed_reverse_safe(nir_instr, instr, node, &(block)->instr_list)
|
|
|
|
typedef struct nir_if {
|
|
nir_cf_node cf_node;
|
|
nir_src condition;
|
|
|
|
struct exec_list then_list; /** < list of nir_cf_node */
|
|
struct exec_list else_list; /** < list of nir_cf_node */
|
|
} nir_if;
|
|
|
|
typedef struct {
|
|
nir_if *nif;
|
|
|
|
nir_instr *conditional_instr;
|
|
|
|
nir_block *break_block;
|
|
nir_block *continue_from_block;
|
|
|
|
bool continue_from_then;
|
|
|
|
struct list_head loop_terminator_link;
|
|
} nir_loop_terminator;
|
|
|
|
typedef struct {
|
|
/* Number of instructions in the loop */
|
|
unsigned num_instructions;
|
|
|
|
/* How many times the loop is run (if known) */
|
|
unsigned trip_count;
|
|
bool is_trip_count_known;
|
|
|
|
/* Unroll the loop regardless of its size */
|
|
bool force_unroll;
|
|
|
|
nir_loop_terminator *limiting_terminator;
|
|
|
|
/* A list of loop_terminators terminating this loop. */
|
|
struct list_head loop_terminator_list;
|
|
} nir_loop_info;
|
|
|
|
typedef struct {
|
|
nir_cf_node cf_node;
|
|
|
|
struct exec_list body; /** < list of nir_cf_node */
|
|
|
|
nir_loop_info *info;
|
|
} nir_loop;
|
|
|
|
/**
|
|
* Various bits of metadata that can may be created or required by
|
|
* optimization and analysis passes
|
|
*/
|
|
typedef enum {
|
|
nir_metadata_none = 0x0,
|
|
nir_metadata_block_index = 0x1,
|
|
nir_metadata_dominance = 0x2,
|
|
nir_metadata_live_ssa_defs = 0x4,
|
|
nir_metadata_not_properly_reset = 0x8,
|
|
nir_metadata_loop_analysis = 0x10,
|
|
} nir_metadata;
|
|
|
|
typedef struct {
|
|
nir_cf_node cf_node;
|
|
|
|
/** pointer to the function of which this is an implementation */
|
|
struct nir_function *function;
|
|
|
|
struct exec_list body; /** < list of nir_cf_node */
|
|
|
|
nir_block *end_block;
|
|
|
|
/** list for all local variables in the function */
|
|
struct exec_list locals;
|
|
|
|
/** array of variables used as parameters */
|
|
unsigned num_params;
|
|
nir_variable **params;
|
|
|
|
/** variable used to hold the result of the function */
|
|
nir_variable *return_var;
|
|
|
|
/** list of local registers in the function */
|
|
struct exec_list registers;
|
|
|
|
/** next available local register index */
|
|
unsigned reg_alloc;
|
|
|
|
/** next available SSA value index */
|
|
unsigned ssa_alloc;
|
|
|
|
/* total number of basic blocks, only valid when block_index_dirty = false */
|
|
unsigned num_blocks;
|
|
|
|
nir_metadata valid_metadata;
|
|
} nir_function_impl;
|
|
|
|
ATTRIBUTE_RETURNS_NONNULL static inline nir_block *
|
|
nir_start_block(nir_function_impl *impl)
|
|
{
|
|
return (nir_block *) impl->body.head_sentinel.next;
|
|
}
|
|
|
|
ATTRIBUTE_RETURNS_NONNULL static inline nir_block *
|
|
nir_impl_last_block(nir_function_impl *impl)
|
|
{
|
|
return (nir_block *) impl->body.tail_sentinel.prev;
|
|
}
|
|
|
|
static inline nir_cf_node *
|
|
nir_cf_node_next(nir_cf_node *node)
|
|
{
|
|
struct exec_node *next = exec_node_get_next(&node->node);
|
|
if (exec_node_is_tail_sentinel(next))
|
|
return NULL;
|
|
else
|
|
return exec_node_data(nir_cf_node, next, node);
|
|
}
|
|
|
|
static inline nir_cf_node *
|
|
nir_cf_node_prev(nir_cf_node *node)
|
|
{
|
|
struct exec_node *prev = exec_node_get_prev(&node->node);
|
|
if (exec_node_is_head_sentinel(prev))
|
|
return NULL;
|
|
else
|
|
return exec_node_data(nir_cf_node, prev, node);
|
|
}
|
|
|
|
static inline bool
|
|
nir_cf_node_is_first(const nir_cf_node *node)
|
|
{
|
|
return exec_node_is_head_sentinel(node->node.prev);
|
|
}
|
|
|
|
static inline bool
|
|
nir_cf_node_is_last(const nir_cf_node *node)
|
|
{
|
|
return exec_node_is_tail_sentinel(node->node.next);
|
|
}
|
|
|
|
NIR_DEFINE_CAST(nir_cf_node_as_block, nir_cf_node, nir_block, cf_node,
|
|
type, nir_cf_node_block)
|
|
NIR_DEFINE_CAST(nir_cf_node_as_if, nir_cf_node, nir_if, cf_node,
|
|
type, nir_cf_node_if)
|
|
NIR_DEFINE_CAST(nir_cf_node_as_loop, nir_cf_node, nir_loop, cf_node,
|
|
type, nir_cf_node_loop)
|
|
NIR_DEFINE_CAST(nir_cf_node_as_function, nir_cf_node,
|
|
nir_function_impl, cf_node, type, nir_cf_node_function)
|
|
|
|
static inline nir_block *
|
|
nir_if_first_then_block(nir_if *if_stmt)
|
|
{
|
|
struct exec_node *head = exec_list_get_head(&if_stmt->then_list);
|
|
return nir_cf_node_as_block(exec_node_data(nir_cf_node, head, node));
|
|
}
|
|
|
|
static inline nir_block *
|
|
nir_if_last_then_block(nir_if *if_stmt)
|
|
{
|
|
struct exec_node *tail = exec_list_get_tail(&if_stmt->then_list);
|
|
return nir_cf_node_as_block(exec_node_data(nir_cf_node, tail, node));
|
|
}
|
|
|
|
static inline nir_block *
|
|
nir_if_first_else_block(nir_if *if_stmt)
|
|
{
|
|
struct exec_node *head = exec_list_get_head(&if_stmt->else_list);
|
|
return nir_cf_node_as_block(exec_node_data(nir_cf_node, head, node));
|
|
}
|
|
|
|
static inline nir_block *
|
|
nir_if_last_else_block(nir_if *if_stmt)
|
|
{
|
|
struct exec_node *tail = exec_list_get_tail(&if_stmt->else_list);
|
|
return nir_cf_node_as_block(exec_node_data(nir_cf_node, tail, node));
|
|
}
|
|
|
|
static inline nir_block *
|
|
nir_loop_first_block(nir_loop *loop)
|
|
{
|
|
struct exec_node *head = exec_list_get_head(&loop->body);
|
|
return nir_cf_node_as_block(exec_node_data(nir_cf_node, head, node));
|
|
}
|
|
|
|
static inline nir_block *
|
|
nir_loop_last_block(nir_loop *loop)
|
|
{
|
|
struct exec_node *tail = exec_list_get_tail(&loop->body);
|
|
return nir_cf_node_as_block(exec_node_data(nir_cf_node, tail, node));
|
|
}
|
|
|
|
typedef enum {
|
|
nir_parameter_in,
|
|
nir_parameter_out,
|
|
nir_parameter_inout,
|
|
} nir_parameter_type;
|
|
|
|
typedef struct {
|
|
nir_parameter_type param_type;
|
|
const struct glsl_type *type;
|
|
} nir_parameter;
|
|
|
|
typedef struct nir_function {
|
|
struct exec_node node;
|
|
|
|
const char *name;
|
|
struct nir_shader *shader;
|
|
|
|
unsigned num_params;
|
|
nir_parameter *params;
|
|
const struct glsl_type *return_type;
|
|
|
|
/** The implementation of this function.
|
|
*
|
|
* If the function is only declared and not implemented, this is NULL.
|
|
*/
|
|
nir_function_impl *impl;
|
|
} nir_function;
|
|
|
|
typedef struct nir_shader_compiler_options {
|
|
bool lower_fdiv;
|
|
bool lower_ffma;
|
|
bool fuse_ffma;
|
|
bool lower_flrp32;
|
|
/** Lowers flrp when it does not support doubles */
|
|
bool lower_flrp64;
|
|
bool lower_fpow;
|
|
bool lower_fsat;
|
|
bool lower_fsqrt;
|
|
bool lower_fmod32;
|
|
bool lower_fmod64;
|
|
/** Lowers ibitfield_extract/ubitfield_extract to ibfe/ubfe. */
|
|
bool lower_bitfield_extract;
|
|
/** Lowers ibitfield_extract/ubitfield_extract to bfm, compares, shifts. */
|
|
bool lower_bitfield_extract_to_shifts;
|
|
/** Lowers bitfield_insert to bfi/bfm */
|
|
bool lower_bitfield_insert;
|
|
/** Lowers bitfield_insert to bfm, compares, and shifts. */
|
|
bool lower_bitfield_insert_to_shifts;
|
|
/** Lowers bitfield_reverse to shifts. */
|
|
bool lower_bitfield_reverse;
|
|
/** Lowers bit_count to shifts. */
|
|
bool lower_bit_count;
|
|
/** Lowers bfm to shifts and subtracts. */
|
|
bool lower_bfm;
|
|
/** Lowers ifind_msb to compare and ufind_msb */
|
|
bool lower_ifind_msb;
|
|
/** Lowers find_lsb to ufind_msb and logic ops */
|
|
bool lower_find_lsb;
|
|
bool lower_uadd_carry;
|
|
bool lower_usub_borrow;
|
|
/** Lowers imul_high/umul_high to 16-bit multiplies and carry operations. */
|
|
bool lower_mul_high;
|
|
/** lowers fneg and ineg to fsub and isub. */
|
|
bool lower_negate;
|
|
/** lowers fsub and isub to fadd+fneg and iadd+ineg. */
|
|
bool lower_sub;
|
|
|
|
/* lower {slt,sge,seq,sne} to {flt,fge,feq,fne} + b2f: */
|
|
bool lower_scmp;
|
|
|
|
/** enables rules to lower idiv by power-of-two: */
|
|
bool lower_idiv;
|
|
|
|
/* lower b2f to iand */
|
|
bool lower_b2f;
|
|
|
|
/* Does the native fdot instruction replicate its result for four
|
|
* components? If so, then opt_algebraic_late will turn all fdotN
|
|
* instructions into fdot_replicatedN instructions.
|
|
*/
|
|
bool fdot_replicates;
|
|
|
|
/** lowers ffract to fsub+ffloor: */
|
|
bool lower_ffract;
|
|
|
|
bool lower_ldexp;
|
|
|
|
bool lower_pack_half_2x16;
|
|
bool lower_pack_unorm_2x16;
|
|
bool lower_pack_snorm_2x16;
|
|
bool lower_pack_unorm_4x8;
|
|
bool lower_pack_snorm_4x8;
|
|
bool lower_unpack_half_2x16;
|
|
bool lower_unpack_unorm_2x16;
|
|
bool lower_unpack_snorm_2x16;
|
|
bool lower_unpack_unorm_4x8;
|
|
bool lower_unpack_snorm_4x8;
|
|
|
|
bool lower_extract_byte;
|
|
bool lower_extract_word;
|
|
|
|
bool lower_all_io_to_temps;
|
|
|
|
/**
|
|
* Does the driver support real 32-bit integers? (Otherwise, integers
|
|
* are simulated by floats.)
|
|
*/
|
|
bool native_integers;
|
|
|
|
/* Indicates that the driver only has zero-based vertex id */
|
|
bool vertex_id_zero_based;
|
|
|
|
/**
|
|
* If enabled, gl_BaseVertex will be lowered as:
|
|
* is_indexed_draw (~0/0) & firstvertex
|
|
*/
|
|
bool lower_base_vertex;
|
|
|
|
bool lower_cs_local_index_from_id;
|
|
|
|
bool lower_device_index_to_zero;
|
|
|
|
/**
|
|
* Should nir_lower_io() create load_interpolated_input intrinsics?
|
|
*
|
|
* If not, it generates regular load_input intrinsics and interpolation
|
|
* information must be inferred from the list of input nir_variables.
|
|
*/
|
|
bool use_interpolated_input_intrinsics;
|
|
|
|
/**
|
|
* Do vertex shader double inputs use two locations? The Vulkan spec
|
|
* requires two locations to be used, OpenGL allows a single location.
|
|
*/
|
|
bool vs_inputs_dual_locations;
|
|
|
|
unsigned max_unroll_iterations;
|
|
} nir_shader_compiler_options;
|
|
|
|
typedef struct nir_shader {
|
|
/** list of uniforms (nir_variable) */
|
|
struct exec_list uniforms;
|
|
|
|
/** list of inputs (nir_variable) */
|
|
struct exec_list inputs;
|
|
|
|
/** list of outputs (nir_variable) */
|
|
struct exec_list outputs;
|
|
|
|
/** list of shared compute variables (nir_variable) */
|
|
struct exec_list shared;
|
|
|
|
/** Set of driver-specific options for the shader.
|
|
*
|
|
* The memory for the options is expected to be kept in a single static
|
|
* copy by the driver.
|
|
*/
|
|
const struct nir_shader_compiler_options *options;
|
|
|
|
/** Various bits of compile-time information about a given shader */
|
|
struct shader_info info;
|
|
|
|
/** list of global variables in the shader (nir_variable) */
|
|
struct exec_list globals;
|
|
|
|
/** list of system value variables in the shader (nir_variable) */
|
|
struct exec_list system_values;
|
|
|
|
struct exec_list functions; /** < list of nir_function */
|
|
|
|
/** list of global register in the shader */
|
|
struct exec_list registers;
|
|
|
|
/** next available global register index */
|
|
unsigned reg_alloc;
|
|
|
|
/**
|
|
* the highest index a load_input_*, load_uniform_*, etc. intrinsic can
|
|
* access plus one
|
|
*/
|
|
unsigned num_inputs, num_uniforms, num_outputs, num_shared;
|
|
} nir_shader;
|
|
|
|
static inline nir_function_impl *
|
|
nir_shader_get_entrypoint(nir_shader *shader)
|
|
{
|
|
assert(exec_list_length(&shader->functions) == 1);
|
|
struct exec_node *func_node = exec_list_get_head(&shader->functions);
|
|
nir_function *func = exec_node_data(nir_function, func_node, node);
|
|
assert(func->return_type == glsl_void_type());
|
|
assert(func->num_params == 0);
|
|
assert(func->impl);
|
|
return func->impl;
|
|
}
|
|
|
|
#define nir_foreach_function(func, shader) \
|
|
foreach_list_typed(nir_function, func, node, &(shader)->functions)
|
|
|
|
nir_shader *nir_shader_create(void *mem_ctx,
|
|
gl_shader_stage stage,
|
|
const nir_shader_compiler_options *options,
|
|
shader_info *si);
|
|
|
|
/** creates a register, including assigning it an index and adding it to the list */
|
|
nir_register *nir_global_reg_create(nir_shader *shader);
|
|
|
|
nir_register *nir_local_reg_create(nir_function_impl *impl);
|
|
|
|
void nir_reg_remove(nir_register *reg);
|
|
|
|
/** Adds a variable to the appropriate list in nir_shader */
|
|
void nir_shader_add_variable(nir_shader *shader, nir_variable *var);
|
|
|
|
static inline void
|
|
nir_function_impl_add_variable(nir_function_impl *impl, nir_variable *var)
|
|
{
|
|
assert(var->data.mode == nir_var_local);
|
|
exec_list_push_tail(&impl->locals, &var->node);
|
|
}
|
|
|
|
/** creates a variable, sets a few defaults, and adds it to the list */
|
|
nir_variable *nir_variable_create(nir_shader *shader,
|
|
nir_variable_mode mode,
|
|
const struct glsl_type *type,
|
|
const char *name);
|
|
/** creates a local variable and adds it to the list */
|
|
nir_variable *nir_local_variable_create(nir_function_impl *impl,
|
|
const struct glsl_type *type,
|
|
const char *name);
|
|
|
|
/** creates a function and adds it to the shader's list of functions */
|
|
nir_function *nir_function_create(nir_shader *shader, const char *name);
|
|
|
|
nir_function_impl *nir_function_impl_create(nir_function *func);
|
|
/** creates a function_impl that isn't tied to any particular function */
|
|
nir_function_impl *nir_function_impl_create_bare(nir_shader *shader);
|
|
|
|
nir_block *nir_block_create(nir_shader *shader);
|
|
nir_if *nir_if_create(nir_shader *shader);
|
|
nir_loop *nir_loop_create(nir_shader *shader);
|
|
|
|
nir_function_impl *nir_cf_node_get_function(nir_cf_node *node);
|
|
|
|
/** requests that the given pieces of metadata be generated */
|
|
void nir_metadata_require(nir_function_impl *impl, nir_metadata required, ...);
|
|
/** dirties all but the preserved metadata */
|
|
void nir_metadata_preserve(nir_function_impl *impl, nir_metadata preserved);
|
|
|
|
/** creates an instruction with default swizzle/writemask/etc. with NULL registers */
|
|
nir_alu_instr *nir_alu_instr_create(nir_shader *shader, nir_op op);
|
|
|
|
nir_jump_instr *nir_jump_instr_create(nir_shader *shader, nir_jump_type type);
|
|
|
|
nir_load_const_instr *nir_load_const_instr_create(nir_shader *shader,
|
|
unsigned num_components,
|
|
unsigned bit_size);
|
|
|
|
nir_intrinsic_instr *nir_intrinsic_instr_create(nir_shader *shader,
|
|
nir_intrinsic_op op);
|
|
|
|
nir_call_instr *nir_call_instr_create(nir_shader *shader,
|
|
nir_function *callee);
|
|
|
|
nir_tex_instr *nir_tex_instr_create(nir_shader *shader, unsigned num_srcs);
|
|
|
|
nir_phi_instr *nir_phi_instr_create(nir_shader *shader);
|
|
|
|
nir_parallel_copy_instr *nir_parallel_copy_instr_create(nir_shader *shader);
|
|
|
|
nir_ssa_undef_instr *nir_ssa_undef_instr_create(nir_shader *shader,
|
|
unsigned num_components,
|
|
unsigned bit_size);
|
|
|
|
nir_deref_var *nir_deref_var_create(void *mem_ctx, nir_variable *var);
|
|
nir_deref_array *nir_deref_array_create(void *mem_ctx);
|
|
nir_deref_struct *nir_deref_struct_create(void *mem_ctx, unsigned field_index);
|
|
|
|
typedef bool (*nir_deref_foreach_leaf_cb)(nir_deref_var *deref, void *state);
|
|
bool nir_deref_foreach_leaf(nir_deref_var *deref,
|
|
nir_deref_foreach_leaf_cb cb, void *state);
|
|
|
|
nir_load_const_instr *
|
|
nir_deref_get_const_initializer_load(nir_shader *shader, nir_deref_var *deref);
|
|
|
|
nir_const_value nir_alu_binop_identity(nir_op binop, unsigned bit_size);
|
|
|
|
/**
|
|
* NIR Cursors and Instruction Insertion API
|
|
* @{
|
|
*
|
|
* A tiny struct representing a point to insert/extract instructions or
|
|
* control flow nodes. Helps reduce the combinatorial explosion of possible
|
|
* points to insert/extract.
|
|
*
|
|
* \sa nir_control_flow.h
|
|
*/
|
|
typedef enum {
|
|
nir_cursor_before_block,
|
|
nir_cursor_after_block,
|
|
nir_cursor_before_instr,
|
|
nir_cursor_after_instr,
|
|
} nir_cursor_option;
|
|
|
|
typedef struct {
|
|
nir_cursor_option option;
|
|
union {
|
|
nir_block *block;
|
|
nir_instr *instr;
|
|
};
|
|
} nir_cursor;
|
|
|
|
static inline nir_block *
|
|
nir_cursor_current_block(nir_cursor cursor)
|
|
{
|
|
if (cursor.option == nir_cursor_before_instr ||
|
|
cursor.option == nir_cursor_after_instr) {
|
|
return cursor.instr->block;
|
|
} else {
|
|
return cursor.block;
|
|
}
|
|
}
|
|
|
|
bool nir_cursors_equal(nir_cursor a, nir_cursor b);
|
|
|
|
static inline nir_cursor
|
|
nir_before_block(nir_block *block)
|
|
{
|
|
nir_cursor cursor;
|
|
cursor.option = nir_cursor_before_block;
|
|
cursor.block = block;
|
|
return cursor;
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_block(nir_block *block)
|
|
{
|
|
nir_cursor cursor;
|
|
cursor.option = nir_cursor_after_block;
|
|
cursor.block = block;
|
|
return cursor;
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_before_instr(nir_instr *instr)
|
|
{
|
|
nir_cursor cursor;
|
|
cursor.option = nir_cursor_before_instr;
|
|
cursor.instr = instr;
|
|
return cursor;
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_instr(nir_instr *instr)
|
|
{
|
|
nir_cursor cursor;
|
|
cursor.option = nir_cursor_after_instr;
|
|
cursor.instr = instr;
|
|
return cursor;
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_block_before_jump(nir_block *block)
|
|
{
|
|
nir_instr *last_instr = nir_block_last_instr(block);
|
|
if (last_instr && last_instr->type == nir_instr_type_jump) {
|
|
return nir_before_instr(last_instr);
|
|
} else {
|
|
return nir_after_block(block);
|
|
}
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_before_cf_node(nir_cf_node *node)
|
|
{
|
|
if (node->type == nir_cf_node_block)
|
|
return nir_before_block(nir_cf_node_as_block(node));
|
|
|
|
return nir_after_block(nir_cf_node_as_block(nir_cf_node_prev(node)));
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_cf_node(nir_cf_node *node)
|
|
{
|
|
if (node->type == nir_cf_node_block)
|
|
return nir_after_block(nir_cf_node_as_block(node));
|
|
|
|
return nir_before_block(nir_cf_node_as_block(nir_cf_node_next(node)));
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_phis(nir_block *block)
|
|
{
|
|
nir_foreach_instr(instr, block) {
|
|
if (instr->type != nir_instr_type_phi)
|
|
return nir_before_instr(instr);
|
|
}
|
|
return nir_after_block(block);
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_cf_node_and_phis(nir_cf_node *node)
|
|
{
|
|
if (node->type == nir_cf_node_block)
|
|
return nir_after_block(nir_cf_node_as_block(node));
|
|
|
|
nir_block *block = nir_cf_node_as_block(nir_cf_node_next(node));
|
|
|
|
return nir_after_phis(block);
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_before_cf_list(struct exec_list *cf_list)
|
|
{
|
|
nir_cf_node *first_node = exec_node_data(nir_cf_node,
|
|
exec_list_get_head(cf_list), node);
|
|
return nir_before_cf_node(first_node);
|
|
}
|
|
|
|
static inline nir_cursor
|
|
nir_after_cf_list(struct exec_list *cf_list)
|
|
{
|
|
nir_cf_node *last_node = exec_node_data(nir_cf_node,
|
|
exec_list_get_tail(cf_list), node);
|
|
return nir_after_cf_node(last_node);
|
|
}
|
|
|
|
/**
|
|
* Insert a NIR instruction at the given cursor.
|
|
*
|
|
* Note: This does not update the cursor.
|
|
*/
|
|
void nir_instr_insert(nir_cursor cursor, nir_instr *instr);
|
|
|
|
static inline void
|
|
nir_instr_insert_before(nir_instr *instr, nir_instr *before)
|
|
{
|
|
nir_instr_insert(nir_before_instr(instr), before);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_after(nir_instr *instr, nir_instr *after)
|
|
{
|
|
nir_instr_insert(nir_after_instr(instr), after);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_before_block(nir_block *block, nir_instr *before)
|
|
{
|
|
nir_instr_insert(nir_before_block(block), before);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_after_block(nir_block *block, nir_instr *after)
|
|
{
|
|
nir_instr_insert(nir_after_block(block), after);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_before_cf(nir_cf_node *node, nir_instr *before)
|
|
{
|
|
nir_instr_insert(nir_before_cf_node(node), before);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_after_cf(nir_cf_node *node, nir_instr *after)
|
|
{
|
|
nir_instr_insert(nir_after_cf_node(node), after);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_before_cf_list(struct exec_list *list, nir_instr *before)
|
|
{
|
|
nir_instr_insert(nir_before_cf_list(list), before);
|
|
}
|
|
|
|
static inline void
|
|
nir_instr_insert_after_cf_list(struct exec_list *list, nir_instr *after)
|
|
{
|
|
nir_instr_insert(nir_after_cf_list(list), after);
|
|
}
|
|
|
|
void nir_instr_remove_v(nir_instr *instr);
|
|
|
|
static inline nir_cursor
|
|
nir_instr_remove(nir_instr *instr)
|
|
{
|
|
nir_cursor cursor;
|
|
nir_instr *prev = nir_instr_prev(instr);
|
|
if (prev) {
|
|
cursor = nir_after_instr(prev);
|
|
} else {
|
|
cursor = nir_before_block(instr->block);
|
|
}
|
|
nir_instr_remove_v(instr);
|
|
return cursor;
|
|
}
|
|
|
|
/** @} */
|
|
|
|
typedef bool (*nir_foreach_ssa_def_cb)(nir_ssa_def *def, void *state);
|
|
typedef bool (*nir_foreach_dest_cb)(nir_dest *dest, void *state);
|
|
typedef bool (*nir_foreach_src_cb)(nir_src *src, void *state);
|
|
bool nir_foreach_ssa_def(nir_instr *instr, nir_foreach_ssa_def_cb cb,
|
|
void *state);
|
|
bool nir_foreach_dest(nir_instr *instr, nir_foreach_dest_cb cb, void *state);
|
|
bool nir_foreach_src(nir_instr *instr, nir_foreach_src_cb cb, void *state);
|
|
|
|
nir_const_value *nir_src_as_const_value(nir_src src);
|
|
bool nir_src_is_dynamically_uniform(nir_src src);
|
|
bool nir_srcs_equal(nir_src src1, nir_src src2);
|
|
void nir_instr_rewrite_src(nir_instr *instr, nir_src *src, nir_src new_src);
|
|
void nir_instr_move_src(nir_instr *dest_instr, nir_src *dest, nir_src *src);
|
|
void nir_if_rewrite_condition(nir_if *if_stmt, nir_src new_src);
|
|
void nir_instr_rewrite_dest(nir_instr *instr, nir_dest *dest,
|
|
nir_dest new_dest);
|
|
void nir_instr_rewrite_deref(nir_instr *instr, nir_deref_var **deref,
|
|
nir_deref_var *new_deref);
|
|
|
|
void nir_ssa_dest_init(nir_instr *instr, nir_dest *dest,
|
|
unsigned num_components, unsigned bit_size,
|
|
const char *name);
|
|
void nir_ssa_def_init(nir_instr *instr, nir_ssa_def *def,
|
|
unsigned num_components, unsigned bit_size,
|
|
const char *name);
|
|
static inline void
|
|
nir_ssa_dest_init_for_type(nir_instr *instr, nir_dest *dest,
|
|
const struct glsl_type *type,
|
|
const char *name)
|
|
{
|
|
assert(glsl_type_is_vector_or_scalar(type));
|
|
nir_ssa_dest_init(instr, dest, glsl_get_components(type),
|
|
glsl_get_bit_size(type), name);
|
|
}
|
|
void nir_ssa_def_rewrite_uses(nir_ssa_def *def, nir_src new_src);
|
|
void nir_ssa_def_rewrite_uses_after(nir_ssa_def *def, nir_src new_src,
|
|
nir_instr *after_me);
|
|
|
|
uint8_t nir_ssa_def_components_read(const nir_ssa_def *def);
|
|
|
|
/*
|
|
* finds the next basic block in source-code order, returns NULL if there is
|
|
* none
|
|
*/
|
|
|
|
nir_block *nir_block_cf_tree_next(nir_block *block);
|
|
|
|
/* Performs the opposite of nir_block_cf_tree_next() */
|
|
|
|
nir_block *nir_block_cf_tree_prev(nir_block *block);
|
|
|
|
/* Gets the first block in a CF node in source-code order */
|
|
|
|
nir_block *nir_cf_node_cf_tree_first(nir_cf_node *node);
|
|
|
|
/* Gets the last block in a CF node in source-code order */
|
|
|
|
nir_block *nir_cf_node_cf_tree_last(nir_cf_node *node);
|
|
|
|
/* Gets the next block after a CF node in source-code order */
|
|
|
|
nir_block *nir_cf_node_cf_tree_next(nir_cf_node *node);
|
|
|
|
/* Macros for loops that visit blocks in source-code order */
|
|
|
|
#define nir_foreach_block(block, impl) \
|
|
for (nir_block *block = nir_start_block(impl); block != NULL; \
|
|
block = nir_block_cf_tree_next(block))
|
|
|
|
#define nir_foreach_block_safe(block, impl) \
|
|
for (nir_block *block = nir_start_block(impl), \
|
|
*next = nir_block_cf_tree_next(block); \
|
|
block != NULL; \
|
|
block = next, next = nir_block_cf_tree_next(block))
|
|
|
|
#define nir_foreach_block_reverse(block, impl) \
|
|
for (nir_block *block = nir_impl_last_block(impl); block != NULL; \
|
|
block = nir_block_cf_tree_prev(block))
|
|
|
|
#define nir_foreach_block_reverse_safe(block, impl) \
|
|
for (nir_block *block = nir_impl_last_block(impl), \
|
|
*prev = nir_block_cf_tree_prev(block); \
|
|
block != NULL; \
|
|
block = prev, prev = nir_block_cf_tree_prev(block))
|
|
|
|
#define nir_foreach_block_in_cf_node(block, node) \
|
|
for (nir_block *block = nir_cf_node_cf_tree_first(node); \
|
|
block != nir_cf_node_cf_tree_next(node); \
|
|
block = nir_block_cf_tree_next(block))
|
|
|
|
/* If the following CF node is an if, this function returns that if.
|
|
* Otherwise, it returns NULL.
|
|
*/
|
|
nir_if *nir_block_get_following_if(nir_block *block);
|
|
|
|
nir_loop *nir_block_get_following_loop(nir_block *block);
|
|
|
|
void nir_index_local_regs(nir_function_impl *impl);
|
|
void nir_index_global_regs(nir_shader *shader);
|
|
void nir_index_ssa_defs(nir_function_impl *impl);
|
|
unsigned nir_index_instrs(nir_function_impl *impl);
|
|
|
|
void nir_index_blocks(nir_function_impl *impl);
|
|
|
|
void nir_print_shader(nir_shader *shader, FILE *fp);
|
|
void nir_print_shader_annotated(nir_shader *shader, FILE *fp, struct hash_table *errors);
|
|
void nir_print_instr(const nir_instr *instr, FILE *fp);
|
|
|
|
nir_shader *nir_shader_clone(void *mem_ctx, const nir_shader *s);
|
|
nir_function_impl *nir_function_impl_clone(const nir_function_impl *fi);
|
|
nir_constant *nir_constant_clone(const nir_constant *c, nir_variable *var);
|
|
nir_variable *nir_variable_clone(const nir_variable *c, nir_shader *shader);
|
|
nir_deref *nir_deref_clone(const nir_deref *deref, void *mem_ctx);
|
|
nir_deref_var *nir_deref_var_clone(const nir_deref_var *deref, void *mem_ctx);
|
|
|
|
nir_shader *nir_shader_serialize_deserialize(void *mem_ctx, nir_shader *s);
|
|
|
|
#ifndef NDEBUG
|
|
void nir_validate_shader(nir_shader *shader);
|
|
void nir_metadata_set_validation_flag(nir_shader *shader);
|
|
void nir_metadata_check_validation_flag(nir_shader *shader);
|
|
|
|
static inline bool
|
|
should_clone_nir(void)
|
|
{
|
|
static int should_clone = -1;
|
|
if (should_clone < 0)
|
|
should_clone = env_var_as_boolean("NIR_TEST_CLONE", false);
|
|
|
|
return should_clone;
|
|
}
|
|
|
|
static inline bool
|
|
should_serialize_deserialize_nir(void)
|
|
{
|
|
static int test_serialize = -1;
|
|
if (test_serialize < 0)
|
|
test_serialize = env_var_as_boolean("NIR_TEST_SERIALIZE", false);
|
|
|
|
return test_serialize;
|
|
}
|
|
|
|
static inline bool
|
|
should_print_nir(void)
|
|
{
|
|
static int should_print = -1;
|
|
if (should_print < 0)
|
|
should_print = env_var_as_boolean("NIR_PRINT", false);
|
|
|
|
return should_print;
|
|
}
|
|
#else
|
|
static inline void nir_validate_shader(nir_shader *shader) { (void) shader; }
|
|
static inline void nir_metadata_set_validation_flag(nir_shader *shader) { (void) shader; }
|
|
static inline void nir_metadata_check_validation_flag(nir_shader *shader) { (void) shader; }
|
|
static inline bool should_clone_nir(void) { return false; }
|
|
static inline bool should_serialize_deserialize_nir(void) { return false; }
|
|
static inline bool should_print_nir(void) { return false; }
|
|
#endif /* NDEBUG */
|
|
|
|
#define _PASS(nir, do_pass) do { \
|
|
do_pass \
|
|
nir_validate_shader(nir); \
|
|
if (should_clone_nir()) { \
|
|
nir_shader *clone = nir_shader_clone(ralloc_parent(nir), nir); \
|
|
ralloc_free(nir); \
|
|
nir = clone; \
|
|
} \
|
|
if (should_serialize_deserialize_nir()) { \
|
|
void *mem_ctx = ralloc_parent(nir); \
|
|
nir = nir_shader_serialize_deserialize(mem_ctx, nir); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define NIR_PASS(progress, nir, pass, ...) _PASS(nir, \
|
|
nir_metadata_set_validation_flag(nir); \
|
|
if (should_print_nir()) \
|
|
printf("%s\n", #pass); \
|
|
if (pass(nir, ##__VA_ARGS__)) { \
|
|
progress = true; \
|
|
if (should_print_nir()) \
|
|
nir_print_shader(nir, stdout); \
|
|
nir_metadata_check_validation_flag(nir); \
|
|
} \
|
|
)
|
|
|
|
#define NIR_PASS_V(nir, pass, ...) _PASS(nir, \
|
|
if (should_print_nir()) \
|
|
printf("%s\n", #pass); \
|
|
pass(nir, ##__VA_ARGS__); \
|
|
if (should_print_nir()) \
|
|
nir_print_shader(nir, stdout); \
|
|
)
|
|
|
|
void nir_calc_dominance_impl(nir_function_impl *impl);
|
|
void nir_calc_dominance(nir_shader *shader);
|
|
|
|
nir_block *nir_dominance_lca(nir_block *b1, nir_block *b2);
|
|
bool nir_block_dominates(nir_block *parent, nir_block *child);
|
|
|
|
void nir_dump_dom_tree_impl(nir_function_impl *impl, FILE *fp);
|
|
void nir_dump_dom_tree(nir_shader *shader, FILE *fp);
|
|
|
|
void nir_dump_dom_frontier_impl(nir_function_impl *impl, FILE *fp);
|
|
void nir_dump_dom_frontier(nir_shader *shader, FILE *fp);
|
|
|
|
void nir_dump_cfg_impl(nir_function_impl *impl, FILE *fp);
|
|
void nir_dump_cfg(nir_shader *shader, FILE *fp);
|
|
|
|
int nir_gs_count_vertices(const nir_shader *shader);
|
|
|
|
bool nir_split_var_copies(nir_shader *shader);
|
|
|
|
bool nir_lower_returns_impl(nir_function_impl *impl);
|
|
bool nir_lower_returns(nir_shader *shader);
|
|
|
|
bool nir_inline_functions(nir_shader *shader);
|
|
|
|
bool nir_propagate_invariant(nir_shader *shader);
|
|
|
|
void nir_lower_var_copy_instr(nir_intrinsic_instr *copy, nir_shader *shader);
|
|
bool nir_lower_var_copies(nir_shader *shader);
|
|
|
|
bool nir_lower_global_vars_to_local(nir_shader *shader);
|
|
|
|
bool nir_lower_indirect_derefs(nir_shader *shader, nir_variable_mode modes);
|
|
|
|
bool nir_lower_locals_to_regs(nir_shader *shader);
|
|
|
|
void nir_lower_io_to_temporaries(nir_shader *shader,
|
|
nir_function_impl *entrypoint,
|
|
bool outputs, bool inputs);
|
|
|
|
void nir_shader_gather_info(nir_shader *shader, nir_function_impl *entrypoint);
|
|
|
|
void nir_assign_var_locations(struct exec_list *var_list, unsigned *size,
|
|
int (*type_size)(const struct glsl_type *));
|
|
|
|
/* Some helpers to do very simple linking */
|
|
bool nir_remove_unused_varyings(nir_shader *producer, nir_shader *consumer);
|
|
void nir_compact_varyings(nir_shader *producer, nir_shader *consumer,
|
|
bool default_to_smooth_interp);
|
|
|
|
typedef enum {
|
|
/* If set, this forces all non-flat fragment shader inputs to be
|
|
* interpolated as if with the "sample" qualifier. This requires
|
|
* nir_shader_compiler_options::use_interpolated_input_intrinsics.
|
|
*/
|
|
nir_lower_io_force_sample_interpolation = (1 << 1),
|
|
} nir_lower_io_options;
|
|
bool nir_lower_io(nir_shader *shader,
|
|
nir_variable_mode modes,
|
|
int (*type_size)(const struct glsl_type *),
|
|
nir_lower_io_options);
|
|
nir_src *nir_get_io_offset_src(nir_intrinsic_instr *instr);
|
|
nir_src *nir_get_io_vertex_index_src(nir_intrinsic_instr *instr);
|
|
|
|
bool nir_is_per_vertex_io(const nir_variable *var, gl_shader_stage stage);
|
|
|
|
void nir_lower_io_types(nir_shader *shader);
|
|
bool nir_lower_regs_to_ssa_impl(nir_function_impl *impl);
|
|
bool nir_lower_regs_to_ssa(nir_shader *shader);
|
|
bool nir_lower_vars_to_ssa(nir_shader *shader);
|
|
|
|
bool nir_remove_dead_variables(nir_shader *shader, nir_variable_mode modes);
|
|
bool nir_lower_constant_initializers(nir_shader *shader,
|
|
nir_variable_mode modes);
|
|
|
|
bool nir_move_load_const(nir_shader *shader);
|
|
bool nir_move_vec_src_uses_to_dest(nir_shader *shader);
|
|
bool nir_lower_vec_to_movs(nir_shader *shader);
|
|
void nir_lower_alpha_test(nir_shader *shader, enum compare_func func,
|
|
bool alpha_to_one);
|
|
bool nir_lower_alu(nir_shader *shader);
|
|
bool nir_lower_alu_to_scalar(nir_shader *shader);
|
|
bool nir_lower_load_const_to_scalar(nir_shader *shader);
|
|
bool nir_lower_read_invocation_to_scalar(nir_shader *shader);
|
|
bool nir_lower_phis_to_scalar(nir_shader *shader);
|
|
void nir_lower_io_arrays_to_elements(nir_shader *producer, nir_shader *consumer);
|
|
void nir_lower_io_arrays_to_elements_no_indirects(nir_shader *shader,
|
|
bool outputs_only);
|
|
void nir_lower_io_to_scalar(nir_shader *shader, nir_variable_mode mask);
|
|
void nir_lower_io_to_scalar_early(nir_shader *shader, nir_variable_mode mask);
|
|
|
|
typedef struct nir_lower_subgroups_options {
|
|
uint8_t subgroup_size;
|
|
uint8_t ballot_bit_size;
|
|
bool lower_to_scalar:1;
|
|
bool lower_vote_trivial:1;
|
|
bool lower_vote_eq_to_ballot:1;
|
|
bool lower_subgroup_masks:1;
|
|
bool lower_shuffle:1;
|
|
bool lower_shuffle_to_32bit:1;
|
|
bool lower_quad:1;
|
|
} nir_lower_subgroups_options;
|
|
|
|
bool nir_lower_subgroups(nir_shader *shader,
|
|
const nir_lower_subgroups_options *options);
|
|
|
|
bool nir_lower_system_values(nir_shader *shader);
|
|
|
|
typedef struct nir_lower_tex_options {
|
|
/**
|
|
* bitmask of (1 << GLSL_SAMPLER_DIM_x) to control for which
|
|
* sampler types a texture projector is lowered.
|
|
*/
|
|
unsigned lower_txp;
|
|
|
|
/**
|
|
* If true, lower away nir_tex_src_offset for all texelfetch instructions.
|
|
*/
|
|
bool lower_txf_offset;
|
|
|
|
/**
|
|
* If true, lower away nir_tex_src_offset for all rect textures.
|
|
*/
|
|
bool lower_rect_offset;
|
|
|
|
/**
|
|
* If true, lower rect textures to 2D, using txs to fetch the
|
|
* texture dimensions and dividing the texture coords by the
|
|
* texture dims to normalize.
|
|
*/
|
|
bool lower_rect;
|
|
|
|
/**
|
|
* If true, convert yuv to rgb.
|
|
*/
|
|
unsigned lower_y_uv_external;
|
|
unsigned lower_y_u_v_external;
|
|
unsigned lower_yx_xuxv_external;
|
|
unsigned lower_xy_uxvx_external;
|
|
|
|
/**
|
|
* To emulate certain texture wrap modes, this can be used
|
|
* to saturate the specified tex coord to [0.0, 1.0]. The
|
|
* bits are according to sampler #, ie. if, for example:
|
|
*
|
|
* (conf->saturate_s & (1 << n))
|
|
*
|
|
* is true, then the s coord for sampler n is saturated.
|
|
*
|
|
* Note that clamping must happen *after* projector lowering
|
|
* so any projected texture sample instruction with a clamped
|
|
* coordinate gets automatically lowered, regardless of the
|
|
* 'lower_txp' setting.
|
|
*/
|
|
unsigned saturate_s;
|
|
unsigned saturate_t;
|
|
unsigned saturate_r;
|
|
|
|
/* Bitmask of textures that need swizzling.
|
|
*
|
|
* If (swizzle_result & (1 << texture_index)), then the swizzle in
|
|
* swizzles[texture_index] is applied to the result of the texturing
|
|
* operation.
|
|
*/
|
|
unsigned swizzle_result;
|
|
|
|
/* A swizzle for each texture. Values 0-3 represent x, y, z, or w swizzles
|
|
* while 4 and 5 represent 0 and 1 respectively.
|
|
*/
|
|
uint8_t swizzles[32][4];
|
|
|
|
/**
|
|
* Bitmap of textures that need srgb to linear conversion. If
|
|
* (lower_srgb & (1 << texture_index)) then the rgb (xyz) components
|
|
* of the texture are lowered to linear.
|
|
*/
|
|
unsigned lower_srgb;
|
|
|
|
/**
|
|
* If true, lower nir_texop_txd on cube maps with nir_texop_txl.
|
|
*/
|
|
bool lower_txd_cube_map;
|
|
|
|
/**
|
|
* If true, lower nir_texop_txd on shadow samplers (except cube maps)
|
|
* with nir_texop_txl. Notice that cube map shadow samplers are lowered
|
|
* with lower_txd_cube_map.
|
|
*/
|
|
bool lower_txd_shadow;
|
|
|
|
/**
|
|
* If true, lower nir_texop_txd on all samplers to a nir_texop_txl.
|
|
* Implies lower_txd_cube_map and lower_txd_shadow.
|
|
*/
|
|
bool lower_txd;
|
|
} nir_lower_tex_options;
|
|
|
|
bool nir_lower_tex(nir_shader *shader,
|
|
const nir_lower_tex_options *options);
|
|
|
|
bool nir_lower_idiv(nir_shader *shader);
|
|
|
|
bool nir_lower_clip_vs(nir_shader *shader, unsigned ucp_enables);
|
|
bool nir_lower_clip_fs(nir_shader *shader, unsigned ucp_enables);
|
|
bool nir_lower_clip_cull_distance_arrays(nir_shader *nir);
|
|
|
|
void nir_lower_two_sided_color(nir_shader *shader);
|
|
|
|
bool nir_lower_clamp_color_outputs(nir_shader *shader);
|
|
|
|
void nir_lower_passthrough_edgeflags(nir_shader *shader);
|
|
void nir_lower_tes_patch_vertices(nir_shader *tes, unsigned patch_vertices);
|
|
|
|
typedef struct nir_lower_wpos_ytransform_options {
|
|
gl_state_index16 state_tokens[STATE_LENGTH];
|
|
bool fs_coord_origin_upper_left :1;
|
|
bool fs_coord_origin_lower_left :1;
|
|
bool fs_coord_pixel_center_integer :1;
|
|
bool fs_coord_pixel_center_half_integer :1;
|
|
} nir_lower_wpos_ytransform_options;
|
|
|
|
bool nir_lower_wpos_ytransform(nir_shader *shader,
|
|
const nir_lower_wpos_ytransform_options *options);
|
|
bool nir_lower_wpos_center(nir_shader *shader, const bool for_sample_shading);
|
|
|
|
typedef struct nir_lower_drawpixels_options {
|
|
gl_state_index16 texcoord_state_tokens[STATE_LENGTH];
|
|
gl_state_index16 scale_state_tokens[STATE_LENGTH];
|
|
gl_state_index16 bias_state_tokens[STATE_LENGTH];
|
|
unsigned drawpix_sampler;
|
|
unsigned pixelmap_sampler;
|
|
bool pixel_maps :1;
|
|
bool scale_and_bias :1;
|
|
} nir_lower_drawpixels_options;
|
|
|
|
void nir_lower_drawpixels(nir_shader *shader,
|
|
const nir_lower_drawpixels_options *options);
|
|
|
|
typedef struct nir_lower_bitmap_options {
|
|
unsigned sampler;
|
|
bool swizzle_xxxx;
|
|
} nir_lower_bitmap_options;
|
|
|
|
void nir_lower_bitmap(nir_shader *shader, const nir_lower_bitmap_options *options);
|
|
|
|
bool nir_lower_atomics_to_ssbo(nir_shader *shader, unsigned ssbo_offset);
|
|
bool nir_lower_to_source_mods(nir_shader *shader);
|
|
|
|
bool nir_lower_gs_intrinsics(nir_shader *shader);
|
|
|
|
typedef unsigned (*nir_lower_bit_size_callback)(const nir_alu_instr *, void *);
|
|
|
|
bool nir_lower_bit_size(nir_shader *shader,
|
|
nir_lower_bit_size_callback callback,
|
|
void *callback_data);
|
|
|
|
typedef enum {
|
|
nir_lower_imul64 = (1 << 0),
|
|
nir_lower_isign64 = (1 << 1),
|
|
/** Lower all int64 modulus and division opcodes */
|
|
nir_lower_divmod64 = (1 << 2),
|
|
} nir_lower_int64_options;
|
|
|
|
bool nir_lower_int64(nir_shader *shader, nir_lower_int64_options options);
|
|
|
|
typedef enum {
|
|
nir_lower_drcp = (1 << 0),
|
|
nir_lower_dsqrt = (1 << 1),
|
|
nir_lower_drsq = (1 << 2),
|
|
nir_lower_dtrunc = (1 << 3),
|
|
nir_lower_dfloor = (1 << 4),
|
|
nir_lower_dceil = (1 << 5),
|
|
nir_lower_dfract = (1 << 6),
|
|
nir_lower_dround_even = (1 << 7),
|
|
nir_lower_dmod = (1 << 8)
|
|
} nir_lower_doubles_options;
|
|
|
|
bool nir_lower_doubles(nir_shader *shader, nir_lower_doubles_options options);
|
|
bool nir_lower_pack(nir_shader *shader);
|
|
|
|
bool nir_normalize_cubemap_coords(nir_shader *shader);
|
|
|
|
void nir_live_ssa_defs_impl(nir_function_impl *impl);
|
|
|
|
void nir_loop_analyze_impl(nir_function_impl *impl,
|
|
nir_variable_mode indirect_mask);
|
|
|
|
bool nir_ssa_defs_interfere(nir_ssa_def *a, nir_ssa_def *b);
|
|
|
|
bool nir_repair_ssa_impl(nir_function_impl *impl);
|
|
bool nir_repair_ssa(nir_shader *shader);
|
|
|
|
void nir_convert_loop_to_lcssa(nir_loop *loop);
|
|
|
|
/* If phi_webs_only is true, only convert SSA values involved in phi nodes to
|
|
* registers. If false, convert all values (even those not involved in a phi
|
|
* node) to registers.
|
|
*/
|
|
bool nir_convert_from_ssa(nir_shader *shader, bool phi_webs_only);
|
|
|
|
bool nir_lower_phis_to_regs_block(nir_block *block);
|
|
bool nir_lower_ssa_defs_to_regs_block(nir_block *block);
|
|
|
|
bool nir_opt_algebraic(nir_shader *shader);
|
|
bool nir_opt_algebraic_before_ffma(nir_shader *shader);
|
|
bool nir_opt_algebraic_late(nir_shader *shader);
|
|
bool nir_opt_constant_folding(nir_shader *shader);
|
|
|
|
bool nir_opt_global_to_local(nir_shader *shader);
|
|
|
|
bool nir_copy_prop(nir_shader *shader);
|
|
|
|
bool nir_opt_copy_prop_vars(nir_shader *shader);
|
|
|
|
bool nir_opt_cse(nir_shader *shader);
|
|
|
|
bool nir_opt_dce(nir_shader *shader);
|
|
|
|
bool nir_opt_dead_cf(nir_shader *shader);
|
|
|
|
bool nir_opt_gcm(nir_shader *shader, bool value_number);
|
|
|
|
bool nir_opt_if(nir_shader *shader);
|
|
|
|
bool nir_opt_intrinsics(nir_shader *shader);
|
|
|
|
bool nir_opt_loop_unroll(nir_shader *shader, nir_variable_mode indirect_mask);
|
|
|
|
bool nir_opt_move_comparisons(nir_shader *shader);
|
|
|
|
bool nir_opt_move_load_ubo(nir_shader *shader);
|
|
|
|
bool nir_opt_peephole_select(nir_shader *shader, unsigned limit);
|
|
|
|
bool nir_opt_remove_phis(nir_shader *shader);
|
|
|
|
bool nir_opt_shrink_load(nir_shader *shader);
|
|
|
|
bool nir_opt_trivial_continues(nir_shader *shader);
|
|
|
|
bool nir_opt_undef(nir_shader *shader);
|
|
|
|
bool nir_opt_conditional_discard(nir_shader *shader);
|
|
|
|
void nir_sweep(nir_shader *shader);
|
|
|
|
nir_intrinsic_op nir_intrinsic_from_system_value(gl_system_value val);
|
|
gl_system_value nir_system_value_from_intrinsic(nir_intrinsic_op intrin);
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#endif /* NIR_H */
|