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jay: validate non-SSA accumulators

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just enough for us to do parallel copy lowering with them.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41064>
This commit is contained in:
Alyssa Rosenzweig 2026-04-20 11:04:42 -04:00 • committed by Marge Bot
parent 28cf0f52c1
commit 53c1c076a8
1 changed files with 10 additions and 9 deletions
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19
src/intel/compiler/jay/jay_validate_ra.c
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@ -11,15 +11,16 @@
/* Validatation doesn't make sense in release builds */
#ifndef NDEBUG
#define NUM_VALIDATE_FILES (ACCUM + 1)
struct regfile {
/* For each register in each file, records the SSA index currently stored
* in that register (or zero if undefined contents).
*/
uint32_t *r[JAY_NUM_SSA_FILES];
uint32_t *r[NUM_VALIDATE_FILES];
/* Size of each register file */
size_t n[JAY_NUM_SSA_FILES];
size_t n[NUM_VALIDATE_FILES];
};
static uint32_t *
@ -30,7 +31,7 @@ reg(struct regfile *rf, enum jay_file file, uint32_t reg)
file = FLAG;
}
assert(file < JAY_NUM_SSA_FILES);
assert(file < NUM_VALIDATE_FILES);
assert(reg < rf->n[file]);
return &rf->r[file][reg];
}
@ -161,12 +162,10 @@ validate_block(jay_function *func, jay_block *block, struct regfile *blocks)
if (I->op == JAY_OPCODE_MOV &&
jay_channel(I->dst, 0) == JAY_SENTINEL &&
jay_is_ssa(I->src[0]) &&
I->src[0].file < NUM_VALIDATE_FILES &&
jay_channel(I->src[0], 0) == JAY_SENTINEL) {
/* Lowered live range splits don't have SSA associated, handle
* directly at the register level.
*/
/* Lowered shuffles don't have SSA indices, handle as registers */
assert(jay_num_values(I->dst) == jay_num_values(I->src[0]));
jay_foreach_comp(I->dst, c) {
@ -196,8 +195,10 @@ jay_validate_ra(jay_function *func)
struct regfile *b = &blocks[block->index];
assert(block->index < func->num_blocks);
jay_foreach_ssa_file(file) {
b->n[file] = jay_num_regs(func->shader, file);
for (unsigned file = 0; file < NUM_VALIDATE_FILES; ++file) {
b->n[file] = file == ACCUM ? 8 / jay_grf_per_gpr(func->shader) :
file == UACCUM ? 4 * jay_ugpr_per_grf(func->shader) :
jay_num_regs(func->shader, file);
b->r[file] = linear_zalloc_array(lin_ctx, uint32_t, b->n[file]);
}
}