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| author | Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com> | 2017-01-24 17:46:17 +0000 |
|---|---|---|
| committer | Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com> | 2017-01-24 17:46:17 +0000 |
| commit | 22a56f2f5a1fd0c248260b597f85586973294523 (patch) | |
| tree | 60ad42a8348672186089e0bc98b79e031e6b0d7c /llvm/lib/Target/AMDGPU/AMDGPU.h | |
| parent | 310c3d3d26b81a816119e2e3d3fc9d03a75ee075 (diff) | |
| download | bcm5719-llvm-22a56f2f5a1fd0c248260b597f85586973294523.tar.gz bcm5719-llvm-22a56f2f5a1fd0c248260b597f85586973294523.zip | |
[AMDGPU] Add VGPR copies post regalloc fix pass
Regalloc creates COPY instructions which do not formally use VALU.
That results in v_mov instructions displaced after exec mask modification.
One pass which do it is SIOptimizeExecMasking, but potentially it can be
done by other passes too.
This patch adds a pass immediately after regalloc to add implicit exec
use operand to all VGPR copy instructions.
Differential Revision: https://reviews.llvm.org/D28874
llvm-svn: 292956
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPU.h')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPU.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPU.h b/llvm/lib/Target/AMDGPU/AMDGPU.h index 7b0a7f4b605..78876ab4f9e 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPU.h +++ b/llvm/lib/Target/AMDGPU/AMDGPU.h @@ -60,6 +60,9 @@ extern char &SIShrinkInstructionsID; void initializeSIFixSGPRCopiesPass(PassRegistry &); extern char &SIFixSGPRCopiesID; +void initializeSIFixVGPRCopiesPass(PassRegistry &); +extern char &SIFixVGPRCopiesID; + void initializeSILowerI1CopiesPass(PassRegistry &); extern char &SILowerI1CopiesID; |
