1 ; Make sure MSan doesn't insert shadow checks for @llvm.is.constant.* arguments.
3 ; RUN: opt < %s -msan-kernel=1 -S -passes=msan 2>&1 | FileCheck \
4 ; RUN: -check-prefixes=CHECK %s
5 ; RUN: opt < %s -msan -msan-kernel=1 -S | FileCheck -check-prefixes=CHECK %s
6 ; RUN: opt < %s -S -passes=msan 2>&1 | FileCheck -check-prefixes=CHECK %s
7 ; RUN: opt < %s -msan -S | FileCheck -check-prefixes=CHECK %s
9 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
10 target triple = "x86_64-unknown-linux-gnu"
12 ; Function Attrs: nounwind readnone uwtable
13 define dso_local i32 @bar(i32 %v) local_unnamed_addr sanitize_memory {
15 %0 = tail call i1 @llvm.is.constant.i32(i32 %v)
16 %1 = zext i1 %0 to i32
21 ; CHECK-NOT: call void @__msan_warning
23 ; Function Attrs: nounwind readnone
24 declare i1 @llvm.is.constant.i32(i32)