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-rw-r--r--test/Verifier/cttz-undef-arg.ll16
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Verifier/cttz-undef-arg.ll b/test/Verifier/cttz-undef-arg.ll
new file mode 100644
index 0000000000..48cd061d32
--- /dev/null
+++ b/test/Verifier/cttz-undef-arg.ll
@@ -0,0 +1,16 @@
+; RUN: not llvm-as < %s -o /dev/null |& FileCheck %s
+
+declare i32 @llvm.ctlz.i32(i32, i1)
+declare i32 @llvm.cttz.i32(i32, i1)
+
+define void @f(i32 %x, i1 %is_not_zero) {
+entry:
+; CHECK: is_zero_undef argument of bit counting intrinsics must be a constant int
+; CHECK-NEXT: @llvm.ctlz.i32
+ call i32 @llvm.ctlz.i32(i32 %x, i1 %is_not_zero)
+
+; CHECK: is_zero_undef argument of bit counting intrinsics must be a constant int
+; CHECK-NEXT: @llvm.cttz.i32
+ call i32 @llvm.cttz.i32(i32 %x, i1 %is_not_zero)
+ ret void
+}