fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2025-12-21 11:30:11 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

nir: Mark divergent regs in phis_to_regs_block()

Browse source 
This way we avoid destroying divergence information which may be used by
passes which also need to lower phis.

Reviewed-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28300>
This commit is contained in:
Faith Ekstrand 2024-03-19 22:31:02 -05:00 • committed by Marge Bot
parent 2be97717e6
commit 1bd9c1b958
1 changed files with 1 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
src/compiler/nir/nir_from_ssa.c
View file

@ -1169,6 +1169,7 @@ nir_lower_phis_to_regs_block(nir_block *block)
bool progress = false; bool progress = false;
nir_foreach_phi_safe(phi, block) { nir_foreach_phi_safe(phi, block) {
nir_def *reg = decl_reg_for_ssa_def(&b, &phi->def); nir_def *reg = decl_reg_for_ssa_def(&b, &phi->def);
set_reg_divergent(reg, phi->def.divergent);
b.cursor = nir_after_instr(&phi->instr); b.cursor = nir_after_instr(&phi->instr);
nir_def_rewrite_uses(&phi->def, nir_load_reg(&b, reg)); nir_def_rewrite_uses(&phi->def, nir_load_reg(&b, reg));