diff options
Diffstat (limited to 'test/Instrumentation/MemorySanitizer/msan_basic.ll')
| -rw-r--r-- | test/Instrumentation/MemorySanitizer/msan_basic.ll | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Instrumentation/MemorySanitizer/msan_basic.ll b/test/Instrumentation/MemorySanitizer/msan_basic.ll index 51693cd..0faf45d 100644 --- a/test/Instrumentation/MemorySanitizer/msan_basic.ll +++ b/test/Instrumentation/MemorySanitizer/msan_basic.ll @@ -766,6 +766,24 @@ cond.end: ; preds = %cond.false, %cond.t ; CHECK: ret i32 [[A]] +; Test that there are no __msan_param_origin_tls stores when +; argument shadow is a compile-time zero constant (which is always the case +; in functions missing sanitize_memory attribute). + +define i32 @NoSanitizeMemoryParamTLS(i32* nocapture readonly %x) { +entry: + %0 = load i32* %x, align 4 + %call = tail call i32 @NoSanitizeMemoryParamTLSHelper(i32 %0) + ret i32 %call +} + +declare i32 @NoSanitizeMemoryParamTLSHelper(i32 %x) + +; CHECK-LABEL: define i32 @NoSanitizeMemoryParamTLS( +; CHECK-NOT: __msan_param_origin_tls +; CHECK: ret i32 + + ; Test argument shadow alignment define <2 x i64> @ArgumentShadowAlignment(i64 %a, <2 x i64> %b) sanitize_memory { |