1 files changed, 31 insertions, 0 deletions
diff --git a/test/asan/TestCases/ill.cc b/test/asan/TestCases/ill.cc
new file mode 100644
index 0000000000000..d7b5350916719
--- /dev/null
+++ b/test/asan/TestCases/ill.cc
@@ -0,0 +1,31 @@
+// Test the handle_sigill option.
+//
+// RUN: %clangxx_asan %s -o %t && %env_asan_opts=handle_sigill=0 not --crash %run %t 2>&1 | FileCheck %s --check-prefix=CHECK0
+// RUN: %clangxx_asan %s -o %t && %env_asan_opts=handle_sigill=1 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK1
+// REQUIRES: x86-target-arch
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+int main(int argc, char **argv) {
+#ifdef _WIN32
+  // Sometimes on Windows this test generates a WER fault dialog. Suppress that.
+  UINT new_flags = SEM_FAILCRITICALERRORS |
+                   SEM_NOGPFAULTERRORBOX |
+                   SEM_NOOPENFILEERRORBOX;
+  // Preserve existing error mode, as discussed at
+  // http://blogs.msdn.com/oldnewthing/archive/2004/07/27/198410.aspx
+  UINT existing_flags = SetErrorMode(new_flags);
+  SetErrorMode(existing_flags | new_flags);
+#endif
+
+  if (argc)
+    __builtin_trap();
+  // Unreachable code to avoid confusing the Windows unwinder.
+#ifdef _WIN32
+  SetErrorMode(0);
+#endif
+}
+// CHECK0-NOT: ERROR: AddressSanitizer
+// CHECK1: ERROR: AddressSanitizer: {{ILL|illegal-instruction}} on unknown address {{0x0*}}