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brw: Fix folding case for MAD instruction with all immediates

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Fixes: b605f76b2a ("brw/algebraic: Constant fold multiplicands of MAD")
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36867>
(cherry picked from commit 74a4e7dd4b)
This commit is contained in:
Caio Oliveira 2025-08-19 21:35:07 -07:00 • committed by Eric Engestrom
parent ccbee20a6c
commit 75a07b9a7c
2 changed files with 5 additions and 5 deletions
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2
.pick_status.json
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@ -3194,7 +3194,7 @@
"description": "brw: Fix folding case for MAD instruction with all immediates",
"nominated": true,
"nomination_type": 2,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "b605f76b2a6b19194a3f4f29d7bb40e47648cda3",
"notes": null

8
src/intel/compiler/brw_opt_algebraic.cpp
View file

@ -189,12 +189,12 @@ brw_opt_constant_fold_instruction(const intel_device_info *devinfo, brw_inst *in
break;
case BRW_OPCODE_MAD:
if (inst->src[1].file == IMM &&
if (inst->src[0].file == IMM &&
inst->src[1].file == IMM &&
inst->src[2].file == IMM &&
inst->src[3].file == IMM &&
!brw_type_is_vector_imm(inst->src[0].type) &&
!brw_type_is_vector_imm(inst->src[1].type) &&
!brw_type_is_vector_imm(inst->src[2].type) &&
!brw_type_is_vector_imm(inst->src[3].type)) {
!brw_type_is_vector_imm(inst->src[2].type)) {
fold_multiplicands_of_MAD(inst);
assert(inst->opcode == BRW_OPCODE_ADD);