116 lines
3.3 KiB
C
116 lines
3.3 KiB
C
/*
|
|
* Copyright (C) 2022 Alyssa Rosenzweig
|
|
* Copyright (C) 2021 Collabora, Ltd.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTAagxLITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIAagxLITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*/
|
|
|
|
#include "agx_compiler.h"
|
|
|
|
/* Validatation doesn't make sense in release builds */
|
|
#ifndef NDEBUG
|
|
|
|
#define agx_validate_assert(stmt) if (!(stmt)) { return false; }
|
|
|
|
/*
|
|
* If a block contains phi nodes, they must come at the start of the block. If a
|
|
* block contains control flow, it must come after a p_logical_end marker.
|
|
* Therefore the form of a valid block is:
|
|
*
|
|
* Phi nodes
|
|
* General instructions
|
|
* Logical end
|
|
* Control flow instructions
|
|
*
|
|
* Validate that this form is satisfied.
|
|
*
|
|
* XXX: This only applies before we delete the logical end instructions, maybe
|
|
* that should be deferred though?
|
|
*/
|
|
enum agx_block_state {
|
|
AGX_BLOCK_STATE_PHI = 0,
|
|
AGX_BLOCK_STATE_BODY = 1,
|
|
AGX_BLOCK_STATE_CF = 2
|
|
};
|
|
|
|
static bool
|
|
agx_validate_block_form(agx_block *block)
|
|
{
|
|
enum agx_block_state state = AGX_BLOCK_STATE_PHI;
|
|
|
|
agx_foreach_instr_in_block(block, I) {
|
|
switch (I->op) {
|
|
case AGX_OPCODE_PHI:
|
|
agx_validate_assert(state == AGX_BLOCK_STATE_PHI);
|
|
break;
|
|
|
|
default:
|
|
agx_validate_assert(state != AGX_BLOCK_STATE_CF);
|
|
state = AGX_BLOCK_STATE_BODY;
|
|
break;
|
|
|
|
case AGX_OPCODE_P_LOGICAL_END:
|
|
agx_validate_assert(state != AGX_BLOCK_STATE_CF);
|
|
state = AGX_BLOCK_STATE_CF;
|
|
break;
|
|
|
|
case AGX_OPCODE_JMP_EXEC_ANY:
|
|
case AGX_OPCODE_JMP_EXEC_NONE:
|
|
case AGX_OPCODE_POP_EXEC:
|
|
case AGX_OPCODE_IF_ICMP:
|
|
case AGX_OPCODE_ELSE_ICMP:
|
|
case AGX_OPCODE_WHILE_ICMP:
|
|
case AGX_OPCODE_IF_FCMP:
|
|
case AGX_OPCODE_ELSE_FCMP:
|
|
case AGX_OPCODE_WHILE_FCMP:
|
|
agx_validate_assert(state == AGX_BLOCK_STATE_CF);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
agx_validate(agx_context *ctx, const char *after)
|
|
{
|
|
bool fail = false;
|
|
|
|
if (agx_debug & AGX_DBG_NOVALIDATE)
|
|
return;
|
|
|
|
agx_foreach_block(ctx, block) {
|
|
if (!agx_validate_block_form(block)) {
|
|
fprintf(stderr, "Invalid block form after %s\n", after);
|
|
agx_print_block(block, stdout);
|
|
fail = true;
|
|
}
|
|
}
|
|
|
|
/* TODO: Validate more invariants */
|
|
|
|
if (fail) {
|
|
agx_print_shader(ctx, stderr);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
#endif /* NDEBUG */
|