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| author | Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com> | 2017-09-19 20:54:38 +0000 |
|---|---|---|
| committer | Stanislav Mekhanoshin <Stanislav.Mekhanoshin@amd.com> | 2017-09-19 20:54:38 +0000 |
| commit | d4ae470d2e7a967331a5bb3ae5be29a4f0b6c764 (patch) | |
| tree | 9065b407288d50bfeb20d5827ea6fb2dcbf008ca /llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h | |
| parent | 59a01a958a55c75af4076e35ba67e2a4a38d8dce (diff) | |
| download | bcm5719-llvm-d4ae470d2e7a967331a5bb3ae5be29a4f0b6c764.tar.gz bcm5719-llvm-d4ae470d2e7a967331a5bb3ae5be29a4f0b6c764.zip | |
[AMDGPU] Prevent post-RA scheduler from breaking memory clauses
The pre-RA scheduler does load/store clustering, but post-RA
scheduler undoes it. Add mutation to prevent it.
Differential Revision: https://reviews.llvm.org/D38014
llvm-svn: 313670
Diffstat (limited to 'llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h index c2ae2227830..7e7a09648ed 100644 --- a/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h +++ b/llvm/lib/Target/AMDGPU/AMDGPUSubtarget.h @@ -883,6 +883,10 @@ public: /// subtarget's specifications, or does not meet number of waves per execution /// unit requirement. unsigned getMaxNumVGPRs(const MachineFunction &MF) const; + + void getPostRAMutations( + std::vector<std::unique_ptr<ScheduleDAGMutation>> &Mutations) + const override; }; } // end namespace llvm |
