[llvm] r270091 - AMDGPU: Also look for s_cbranch_vccz

[Matt Arsenault via llvm-commits]

Author: arsenm
Date: Thu May 19 13:20:25 2016
New Revision: 270091

URL: http://llvm.org/viewvc/llvm-project?rev=270091&view=rev
Log:
AMDGPU: Also look for s_cbranch_vccz

Modified:
    llvm/trunk/lib/Target/AMDGPU/SILowerControlFlow.cpp

Modified: llvm/trunk/lib/Target/AMDGPU/SILowerControlFlow.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AMDGPU/SILowerControlFlow.cpp?rev=270091&r1=270090&r2=270091&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AMDGPU/SILowerControlFlow.cpp (original)
+++ llvm/trunk/lib/Target/AMDGPU/SILowerControlFlow.cpp Thu May 19 13:20:25 2016
@@ -158,7 +158,8 @@ bool SILowerControlFlow::shouldSkip(Mach
       // When a uniform loop is inside non-uniform control flow, the branch
       // leaving the loop might be an S_CBRANCH_VCCNZ, which is never taken
       // when EXEC = 0. We should skip the loop lest it becomes infinite.
-      if (I->getOpcode() == AMDGPU::S_CBRANCH_VCCNZ)
+      if (I->getOpcode() == AMDGPU::S_CBRANCH_VCCNZ ||
+          I->getOpcode() == AMDGPU::S_CBRANCH_VCCZ)
         return true;
 
       if (++NumInstr >= SkipThreshold)