[PATCH] D14805: AMDGPU: Cache information about register pressure sets
Tom Stellard via llvm-commits
llvm-commits at lists.llvm.org
Tue Mar 22 13:21:07 PDT 2016
tstellarAMD added inline comments.
Comment at: lib/Target/AMDGPU/SIRegisterInfo.cpp:118-121
@@ -109,1 +117,6 @@
+ if (SGPRPressureSets.test(Idx))
+ return SGPRLimit;
+ return VGPRLimit;
> Are both SGPRPressureSets and VGPRPressureSets necessary? Can you just have one and assume if it isn't it's the other?
It's because of the VS_32 register class has both SGPRs. and VGPRs.
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