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jay: propagate inverse-ballots only locally

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Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41215>
This commit is contained in:
Alyssa Rosenzweig 2026-04-23 11:11:03 -04:00 • committed by Marge Bot
parent d7283a25d7
commit 86f19bc983
1 changed files with 6 additions and 2 deletions
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8
src/intel/compiler/jay/jay_opt_propagate.c
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@ -333,12 +333,16 @@ propagate_backwards(jay_function *f)
continue;
}
/* Fold UGPR->{GPR, FLAG} and UFLAG->FLAG copies coming out of NIR */
/* Fold UGPR->{GPR, FLAG} and UFLAG->FLAG copies coming out of NIR.
* Inverse-ballots are propagated only locally.
*/
if (use->type ==
(flag ? JAY_TYPE_U1 : canonicalize_for_bit_compare(I->type)) &&
I->op != JAY_OPCODE_PHI_DST &&
use->op == JAY_OPCODE_MOV &&
use->dst.file != J_ADDRESS) {
use->dst.file != J_ADDRESS &&
(!jay_is_flag(use->dst) ||
def_block[jay_base_index(use->dst)] == block->index)) {
*(flag ? &I->cond_flag : &I->dst) = use->dst;
jay_remove_instruction(use);