1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
index 698bcbdb983..bdbcc658b88 100644
--- a/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
+++ b/llvm/lib/Target/AMDGPU/SIFoldOperands.cpp
@@ -239,9 +239,11 @@ static bool updateOperand(FoldCandidate &Fold,
 
   if ((Fold.isImm() || Fold.isFI() || Fold.isGlobal()) && Fold.needsShrink()) {
     MachineBasicBlock *MBB = MI->getParent();
-    auto Liveness = MBB->computeRegisterLiveness(&TRI, AMDGPU::VCC, MI);
-    if (Liveness != MachineBasicBlock::LQR_Dead)
+    auto Liveness = MBB->computeRegisterLiveness(&TRI, AMDGPU::VCC, MI, 16);
+    if (Liveness != MachineBasicBlock::LQR_Dead) {
+      LLVM_DEBUG(dbgs() << "Not shrinking " << MI << " due to vcc liveness\n");
       return false;
+    }
 
     MachineRegisterInfo &MRI = MBB->getParent()->getRegInfo();
     int Op32 = Fold.getShrinkOpcode();