1 files changed, 22 insertions, 0 deletions
diff --git a/compiler-rt/test/tysan/print_stacktrace.c b/compiler-rt/test/tysan/print_stacktrace.c
new file mode 100644
index 0000000..3ffb606
--- /dev/null
+++ b/compiler-rt/test/tysan/print_stacktrace.c
@@ -0,0 +1,22 @@
+// RUN: %clang_tysan -O0 %s -o %t && %run %t >%t.out 2>&1
+// RUN: FileCheck --check-prefixes=CHECK,CHECK-SHORT %s < %t.out
+
+// RUN: %env_tysan_opts=print_stacktrace=1 %run %t >%t.out 2>&1
+// RUN: FileCheck --check-prefixes=CHECK,CHECK-LONG %s < %t.out
+
+float *P;
+void zero_array() {
+  int i;
+  for (i = 0; i < 1; ++i)
+    P[i] = 0.0f;
+  // CHECK: ERROR: TypeSanitizer: type-aliasing-violation
+  // CHECK: WRITE of size 4 at {{.*}} with type float accesses an existing object of type p1 float
+  // CHECK: {{#0 0x.* in zero_array .*print_stacktrace.c:}}[[@LINE-3]]
+  // CHECK-SHORT-NOT: {{#1 0x.* in main .*print_stacktrace.c}}
+  // CHECK-LONG-NEXT: {{#1 0x.* in main .*print_stacktrace.c}}
+}
+
+int main() {
+  P = (float *)&P;
+  zero_array();
+}