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| author | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2014-10-24 23:34:15 +0000 |
|---|---|---|
| committer | Evgeniy Stepanov <eugeni.stepanov@gmail.com> | 2014-10-24 23:34:15 +0000 |
| commit | d337a59db56d9f1f53d67257c6dcba7842d8738a (patch) | |
| tree | 25776e08511440b075cdb0b804439c7afd757252 /llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll | |
| parent | 5a52e6dc9eeb07e44a62bdc828bc9b8b7348549d (diff) | |
| download | bcm5719-llvm-d337a59db56d9f1f53d67257c6dcba7842d8738a.tar.gz bcm5719-llvm-d337a59db56d9f1f53d67257c6dcba7842d8738a.zip | |
[msan] Make -msan-check-constant-shadow a bit stronger.
Allow (under the experimental flag) non-Instructions to participate in MSan checks.
llvm-svn: 220601
Diffstat (limited to 'llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll')
| -rw-r--r-- | llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll b/llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll new file mode 100644 index 00000000000..11e44106d8f --- /dev/null +++ b/llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll @@ -0,0 +1,15 @@ +; RUN: opt < %s -msan -msan-check-constant-shadow=1 -S | FileCheck %s + +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +; Test that returning a literal undef from main() triggers an MSan warning. + +define i32 @main() nounwind uwtable sanitize_memory { +entry: + ret i32 undef +} + +; CHECK-LABEL: @main +; CHECK: call void @__msan_warning_noreturn +; CHECK: ret i32 undef |
