1 files changed, 31 insertions, 0 deletions
diff --git a/test/msan/heap-origin.cc b/test/msan/heap-origin.cc
new file mode 100644
index 0000000000000..0920001beed71
--- /dev/null
+++ b/test/msan/heap-origin.cc
@@ -0,0 +1,31 @@
+// RUN: %clangxx_msan -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+// RUN: %clangxx_msan -m64 -O1 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+// RUN: %clangxx_msan -m64 -O2 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+// RUN: %clangxx_msan -m64 -O3 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out
+
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O0 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O1 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O2 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+// RUN: %clangxx_msan -fsanitize-memory-track-origins -m64 -O3 %s -o %t && not %run %t >%t.out 2>&1
+// RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out
+
+#include <stdlib.h>
+int main(int argc, char **argv) {
+  char *volatile x = (char*)malloc(5 * sizeof(char));
+  return *x;
+  // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
+  // CHECK: {{#0 0x.* in main .*heap-origin.cc:}}[[@LINE-2]]
+
+  // CHECK-ORIGINS: Uninitialized value was created by a heap allocation
+  // CHECK-ORIGINS: {{#0 0x.* in .*malloc}}
+  // CHECK-ORIGINS: {{#1 0x.* in main .*heap-origin.cc:}}[[@LINE-7]]
+
+  // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*heap-origin.cc:.* main}}
+}