fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-26 21:30:09 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

agx: Don't use ssa_to_reg across blocks

Browse source 
This is a footgun with live range spltiting.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24635>
This commit is contained in:
Alyssa Rosenzweig 2023-08-01 09:13:02 -04:00 • committed by Marge Bot
parent 964a67fda4
commit d035908550
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/asahi/compiler/agx_register_allocate.c
View file

@ -708,7 +708,9 @@ reserve_live_in(struct ra_ctx *rctx)
set_ssa_to_reg(rctx, i, base);
} else {
/* If we don't emit a phi, there is already a unique register */
base = rctx->ssa_to_reg[i];
agx_foreach_predecessor(rctx->block, pred) {
base = (*pred)->ssa_to_reg_out[i];
}
}
for (unsigned j = 0; j < rctx->ncomps[i]; ++j) {