[PATCH] D18340: AMDGPU: allow specifying a workgroup size that needs to fit in a compute unit

[Bas Nieuwenhuizen via llvm-commits]

bnieuwenhuizen added inline comments.

================
Comment at: lib/Target/AMDGPU/SIRegisterInfo.cpp:40
@@ +39,3 @@
+    AllowedSGPRCount = 800;
+    AllowedSGPRCount = (AllowedSGPRCount / MaxWaveCountPerSIMD) & ~15;
+
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arsenm wrote:
> There is a alignTo function you should use
Note that alignTo rounds up, this rounds down.


http://reviews.llvm.org/D18340