vendor/llvm-project/llvmorg-11.0.0-rc2-91-g6e042866c30

1 files changed, 1 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/MachineCopyPropagation.cpp b/llvm/lib/CodeGen/MachineCopyPropagation.cpp
index 70d6dcc2e3e2..4c4839ca6522 100644
--- a/llvm/lib/CodeGen/MachineCopyPropagation.cpp
+++ b/llvm/lib/CodeGen/MachineCopyPropagation.cpp
@@ -336,10 +336,8 @@ static bool isNopCopy(const MachineInstr &PreviousCopy, unsigned Src,
                       unsigned Def, const TargetRegisterInfo *TRI) {
   Register PreviousSrc = PreviousCopy.getOperand(1).getReg();
   Register PreviousDef = PreviousCopy.getOperand(0).getReg();
-  if (Src == PreviousSrc) {
-    assert(Def == PreviousDef);
+  if (Src == PreviousSrc && Def == PreviousDef)
     return true;
-  }
   if (!TRI->isSubRegister(PreviousSrc, Src))
     return false;
   unsigned SubIdx = TRI->getSubRegIndex(PreviousSrc, Src);