Vendor import of compiler-rt trunk r256633:vendor/compiler-rt/compiler-rt-trunk-r256633

https://llvm.org/svn/llvm-project/compiler-rt/trunk@256633

1 files changed, 41 insertions, 0 deletions

diff --git a/test/ubsan/TestCases/Integer/suppressions.cpp b/test/ubsan/TestCases/Integer/suppressions.cpp
new file mode 100644
index 000000000000..e2f632d0725c
--- /dev/null
+++ b/test/ubsan/TestCases/Integer/suppressions.cpp
@@ -0,0 +1,41 @@
+// XFAIL: win32
+// On Windows, %t starts with c:\. lit's ShLexer helpfully strips the
+// quotes in the suppressions="%t..." lines below, so the UBSAN_OPTIONS
+// env var that ubsan effectively sees is halt_on_error=1:suppressions=c:\...
+// without any quotes.  Since : is ubsan's UBSAN_OPTIONS separator, this
+// confuses sanitizer_flag_parser.
+// FIXME: Figure out how to make this test go on Windows.
+
+// RUN: %clangxx -fsanitize=integer -g0 %s -o %t
+
+// Fails without any suppression.
+// RUN: %env_ubsan_opts=halt_on_error=1 not %run %t 2>&1 | FileCheck %s
+
+// RUN: echo "signed-integer-overflow:%t" > %t.wrong-supp
+// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.wrong-supp" not %run %t 2>&1 | FileCheck %s
+
+// RUN: echo "unsigned-integer-overflow:do_overflow" > %t.func-supp
+// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.func-supp" %run %t
+// RUN: echo "unsigned-integer-overflow:%t" > %t.module-supp
+// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.module-supp" %run %t
+
+// Note: file-level suppressions should work even without debug info.
+// RUN: echo "unsigned-integer-overflow:%s" > %t.file-supp
+// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.file-supp" %run %t
+
+// Suppressions don't work for unrecoverable kinds.
+// RUN: %clangxx -fsanitize=integer -fno-sanitize-recover=integer %s -o %t-norecover
+// RUN: %env_ubsan_opts=halt_on_error=1:suppressions="%t.module-supp" not %run %t-norecover 2>&1 | FileCheck %s
+
+#include <stdint.h>
+
+extern "C" void do_overflow() {
+  (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull));
+  // CHECK: runtime error: unsigned integer overflow
+}
+
+int main() {
+  do_overflow();
+  return 0;
+}
+