From 8ef50bf3d1c287b5013c3168de77a462dfce3495 Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Thu, 6 Nov 2014 22:49:13 +0000 Subject: Import compiler-rt release_34 branch r197381. https://llvm.org/svn/llvm-project/compiler-rt/branches/release_34@197381 --- .../lit_tests/TestCases/Integer/add-overflow.cpp | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 lib/ubsan/lit_tests/TestCases/Integer/add-overflow.cpp (limited to 'lib/ubsan/lit_tests/TestCases/Integer/add-overflow.cpp') diff --git a/lib/ubsan/lit_tests/TestCases/Integer/add-overflow.cpp b/lib/ubsan/lit_tests/TestCases/Integer/add-overflow.cpp new file mode 100644 index 0000000000000..412eb7621033b --- /dev/null +++ b/lib/ubsan/lit_tests/TestCases/Integer/add-overflow.cpp @@ -0,0 +1,32 @@ +// RUN: %clangxx -DADD_I32 -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=CHECK-ADD_I32 +// RUN: %clangxx -DADD_I64 -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=CHECK-ADD_I64 +// RUN: %clangxx -DADD_I128 -fsanitize=signed-integer-overflow %s -o %t && %t 2>&1 | FileCheck %s --check-prefix=CHECK-ADD_I128 + +#include +#include + +int main() { + // These promote to 'int'. + (void)(int8_t(0x7f) + int8_t(0x7f)); + (void)(int16_t(0x3fff) + int16_t(0x4000)); + +#ifdef ADD_I32 + int32_t k = 0x12345678; + k += 0x789abcde; + // CHECK-ADD_I32: add-overflow.cpp:[[@LINE-1]]:5: runtime error: signed integer overflow: 305419896 + 2023406814 cannot be represented in type 'int' +#endif + +#ifdef ADD_I64 + (void)(int64_t(8000000000000000000ll) + int64_t(2000000000000000000ll)); + // CHECK-ADD_I64: 8000000000000000000 + 2000000000000000000 cannot be represented in type '{{long( long)?}}' +#endif + +#ifdef ADD_I128 +# ifdef __SIZEOF_INT128__ + (void)((__int128_t(1) << 126) + (__int128_t(1) << 126)); +# else + puts("__int128 not supported"); +# endif + // CHECK-ADD_I128: {{0x40000000000000000000000000000000 \+ 0x40000000000000000000000000000000 cannot be represented in type '__int128'|__int128 not supported}} +#endif +} -- cgit v1.2.3