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