vendor/compiler-rt/compiler-rt-trunk-r321017

1 files changed, 35 insertions, 0 deletions

diff --git a/test/ubsan/TestCases/Misc/builtins.cpp b/test/ubsan/TestCases/Misc/builtins.cpp
new file mode 100644
index 000000000000..18c68b5917a5
--- /dev/null
+++ b/test/ubsan/TestCases/Misc/builtins.cpp
@@ -0,0 +1,35 @@
+// REQUIRES: arch=x86_64
+//
+// RUN: %clangxx -fsanitize=builtin -w %s -O3 -o %t
+// RUN: %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER
+// RUN: %clangxx -fsanitize=builtin -fno-sanitize-recover=builtin -w %s -O3 -o %t.abort
+// RUN: not %run %t.abort 2>&1 | FileCheck %s --check-prefix=ABORT
+
+void check_ctz(int n) {
+  // ABORT: builtins.cpp:[[@LINE+2]]:17: runtime error: passing zero to ctz(), which is not a valid argument
+  // RECOVER: builtins.cpp:[[@LINE+1]]:17: runtime error: passing zero to ctz(), which is not a valid argument
+  __builtin_ctz(n);
+
+  // RECOVER: builtins.cpp:[[@LINE+1]]:18: runtime error: passing zero to ctz(), which is not a valid argument
+  __builtin_ctzl(n);
+
+  // RECOVER: builtins.cpp:[[@LINE+1]]:19: runtime error: passing zero to ctz(), which is not a valid argument
+  __builtin_ctzll(n);
+}
+
+void check_clz(int n) {
+  // RECOVER: builtins.cpp:[[@LINE+1]]:17: runtime error: passing zero to clz(), which is not a valid argument
+  __builtin_clz(n);
+
+  // RECOVER: builtins.cpp:[[@LINE+1]]:18: runtime error: passing zero to clz(), which is not a valid argument
+  __builtin_clzl(n);
+
+  // RECOVER: builtins.cpp:[[@LINE+1]]:19: runtime error: passing zero to clz(), which is not a valid argument
+  __builtin_clzll(n);
+}
+
+int main() {
+  check_ctz(0);
+  check_clz(0);
+  return 0;
+}