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authorEvgeniy Stepanov <eugeni.stepanov@gmail.com>2013-09-16 13:24:32 +0000
committerEvgeniy Stepanov <eugeni.stepanov@gmail.com>2013-09-16 13:24:32 +0000
commite5c8c5a1bcecff7e2aa60672be6af2062ad63e6a (patch)
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[msan] Check return value of main().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190782 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Instrumentation')
-rw-r--r--test/Instrumentation/MemorySanitizer/return_from_main.ll18
1 files changed, 18 insertions, 0 deletions
diff --git a/test/Instrumentation/MemorySanitizer/return_from_main.ll b/test/Instrumentation/MemorySanitizer/return_from_main.ll
new file mode 100644
index 0000000..81dc888
--- /dev/null
+++ b/test/Instrumentation/MemorySanitizer/return_from_main.ll
@@ -0,0 +1,18 @@
+; RUN: opt < %s -msan -msan-check-access-address=0 -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"
+
+define i32 @main() sanitize_memory {
+entry:
+ %call = tail call i32 @f()
+ ret i32 %call
+}
+
+declare i32 @f() sanitize_memory
+
+; CHECK: @main
+; CHECK: call i32 @f()
+; CHECK: store i32 0, {{.*}} @__msan_retval_tls
+; CHECK: br i1
+; CHECK: call void @__msan_warning_noreturn()
+; CHECK: ret i32