AMDGPU: Fix not checking for copy when looking at copy src
Effectively reverts r356956. The check for isFullCopy was excessive,
but there still needs to be a check that this is a copy.
llvm-svn: 358890
diff --git a/llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp b/llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
index 7e843e8..c8a1467 100644
--- a/llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
+++ b/llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
@@ -88,7 +88,12 @@
}
static bool isFullExecCopy(const MachineInstr& MI) {
- return MI.getOperand(1).getReg() == AMDGPU::EXEC;
+ if (MI.isCopy() && MI.getOperand(1).getReg() == AMDGPU::EXEC) {
+ assert(MI.isFullCopy());
+ return true;
+ }
+
+ return false;
}
static unsigned getOrNonExecReg(const MachineInstr &MI,