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-rw-r--r--llvm/lib/VMCore/Verifier.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/VMCore/Verifier.cpp b/llvm/lib/VMCore/Verifier.cpp
index f74d762be94..003de442d61 100644
--- a/llvm/lib/VMCore/Verifier.cpp
+++ b/llvm/lib/VMCore/Verifier.cpp
@@ -1688,6 +1688,12 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
switch (ID) {
default:
break;
+ case Intrinsic::ctlz: // llvm.ctlz
+ case Intrinsic::cttz: // llvm.cttz
+ Assert1(isa<ConstantInt>(CI.getArgOperand(1)),
+ "is_zero_undef argument of bit counting intrinsics must be a "
+ "constant int", &CI);
+ break;
case Intrinsic::dbg_declare: { // llvm.dbg.declare
Assert1(CI.getArgOperand(0) && isa<MDNode>(CI.getArgOperand(0)),
"invalid llvm.dbg.declare intrinsic call 1", &CI);
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