projects / platform / upstream / llvm.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 9e6d1f4) | patch
[AMDGPU] Improve liveness copying in si-optimize-exec-masking-pre-ra
authorCarl Ritson <carl.ritson@amd.com>
Sun, 17 Jul 2022 07:19:40 +0000 (16:19 +0900)
committerCarl Ritson <carl.ritson@amd.com>
Sun, 17 Jul 2022 08:34:05 +0000 (17:34 +0900)
commit547e3cba7d166286c3c4ce477998a81ebbed6921
tree32dd85029f308829d84705b9dfa8c79a82f8ba08tree | snapshot
parent9e6d1f4b5d393b8d74640c72b94ccc23ed4ee885commit | diff
[AMDGPU] Improve liveness copying in si-optimize-exec-masking-pre-ra

Further improve liveness copying for CC register post optimization
by mirroring live internal splits.
The fixes a bug in register allocation when CC register liveness
is extended across a branches instead of split.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D129557
llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp diff | blob | history
llvm/test/CodeGen/AMDGPU/optimize-exec-mask-pre-ra-alloc-failure.mir [new file with mode: 0644] blob
Domain: System / Toolchain;