193 lines
5.8 KiB
C++
193 lines
5.8 KiB
C++
/*
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* Copyright © 2014 Intel Corporation
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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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#include <gtest/gtest.h>
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#include "brw_vec4.h"
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#include "program/program.h"
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using namespace brw;
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class copy_propagation_vec4_test : public ::testing::Test {
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virtual void SetUp();
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virtual void TearDown();
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public:
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struct brw_compiler *compiler;
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struct intel_device_info *devinfo;
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void *ctx;
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struct gl_shader_program *shader_prog;
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struct brw_vue_prog_data *prog_data;
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vec4_visitor *v;
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};
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class copy_propagation_vec4_visitor : public vec4_visitor
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{
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public:
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copy_propagation_vec4_visitor(struct brw_compiler *compiler,
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void *mem_ctx,
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nir_shader *shader,
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struct brw_vue_prog_data *prog_data)
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: vec4_visitor(compiler, NULL, NULL, prog_data, shader, mem_ctx,
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false /* no_spills */, false)
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{
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prog_data->dispatch_mode = DISPATCH_MODE_4X2_DUAL_OBJECT;
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}
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protected:
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virtual dst_reg *make_reg_for_system_value(int /* location */)
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{
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unreachable("Not reached");
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}
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virtual void setup_payload()
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{
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unreachable("Not reached");
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}
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virtual void emit_prolog()
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{
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unreachable("Not reached");
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}
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virtual void emit_thread_end()
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{
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unreachable("Not reached");
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}
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virtual void emit_urb_write_header(int /* mrf */)
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{
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unreachable("Not reached");
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}
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virtual vec4_instruction *emit_urb_write_opcode(bool /* complete */)
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{
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unreachable("Not reached");
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}
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};
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void copy_propagation_vec4_test::SetUp()
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{
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ctx = ralloc_context(NULL);
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compiler = rzalloc(ctx, struct brw_compiler);
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devinfo = rzalloc(ctx, struct intel_device_info);
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compiler->devinfo = devinfo;
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prog_data = ralloc(ctx, struct brw_vue_prog_data);
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nir_shader *shader =
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nir_shader_create(ctx, MESA_SHADER_VERTEX, NULL, NULL);
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v = new copy_propagation_vec4_visitor(compiler, ctx, shader, prog_data);
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devinfo->ver = 4;
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devinfo->verx10 = devinfo->ver * 10;
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}
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void copy_propagation_vec4_test::TearDown()
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{
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delete v;
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v = NULL;
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ralloc_free(ctx);
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ctx = NULL;
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}
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static void
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copy_propagation(vec4_visitor *v)
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{
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const bool print = getenv("TEST_DEBUG");
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if (print) {
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fprintf(stderr, "instructions before:\n");
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v->dump_instructions();
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}
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v->calculate_cfg();
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v->opt_copy_propagation();
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if (print) {
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fprintf(stderr, "instructions after:\n");
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v->dump_instructions();
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}
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}
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TEST_F(copy_propagation_vec4_test, test_swizzle_swizzle)
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{
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dst_reg a = dst_reg(v, glsl_type::vec4_type);
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dst_reg b = dst_reg(v, glsl_type::vec4_type);
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dst_reg c = dst_reg(v, glsl_type::vec4_type);
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v->emit(v->ADD(a, src_reg(a), src_reg(a)));
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v->emit(v->MOV(b, swizzle(src_reg(a), BRW_SWIZZLE4(SWIZZLE_Y,
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SWIZZLE_Z,
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SWIZZLE_W,
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SWIZZLE_X))));
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vec4_instruction *test_mov =
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v->MOV(c, swizzle(src_reg(b), BRW_SWIZZLE4(SWIZZLE_Y,
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SWIZZLE_Z,
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SWIZZLE_W,
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SWIZZLE_X)));
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v->emit(test_mov);
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copy_propagation(v);
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EXPECT_EQ(test_mov->src[0].nr, a.nr);
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EXPECT_EQ(test_mov->src[0].swizzle, BRW_SWIZZLE4(SWIZZLE_Z,
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SWIZZLE_W,
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SWIZZLE_X,
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SWIZZLE_Y));
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}
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TEST_F(copy_propagation_vec4_test, test_swizzle_writemask)
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{
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dst_reg a = dst_reg(v, glsl_type::vec4_type);
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dst_reg b = dst_reg(v, glsl_type::vec4_type);
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dst_reg c = dst_reg(v, glsl_type::vec4_type);
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v->emit(v->MOV(b, swizzle(src_reg(a), BRW_SWIZZLE4(SWIZZLE_X,
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SWIZZLE_Y,
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SWIZZLE_X,
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SWIZZLE_Z))));
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v->emit(v->MOV(writemask(a, WRITEMASK_XYZ), brw_imm_f(1.0f)));
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vec4_instruction *test_mov =
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v->MOV(c, swizzle(src_reg(b), BRW_SWIZZLE4(SWIZZLE_W,
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SWIZZLE_W,
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SWIZZLE_W,
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SWIZZLE_W)));
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v->emit(test_mov);
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copy_propagation(v);
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/* should not copy propagate */
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EXPECT_EQ(test_mov->src[0].nr, b.nr);
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EXPECT_EQ(test_mov->src[0].swizzle, BRW_SWIZZLE4(SWIZZLE_W,
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SWIZZLE_W,
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SWIZZLE_W,
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SWIZZLE_W));
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}
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