diff options
| author | Andrew Turner <andrew@FreeBSD.org> | 2013-01-18 20:06:45 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2013-01-18 20:06:45 +0000 |
| commit | 58aabf08b77d221489f10e274812ec60917c21a8 (patch) | |
| tree | b946f82269be87d83f086167c762c362e734c5bb /lib/ubsan/lit_tests/Integer/uincdec-overflow.cpp | |
| parent | 37dfff057418e02f8e5322da12684dd927e3d881 (diff) | |
Notes
Diffstat (limited to 'lib/ubsan/lit_tests/Integer/uincdec-overflow.cpp')
| -rw-r--r-- | lib/ubsan/lit_tests/Integer/uincdec-overflow.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/lib/ubsan/lit_tests/Integer/uincdec-overflow.cpp b/lib/ubsan/lit_tests/Integer/uincdec-overflow.cpp new file mode 100644 index 000000000000..6b677ca5bd35 --- /dev/null +++ b/lib/ubsan/lit_tests/Integer/uincdec-overflow.cpp @@ -0,0 +1,16 @@ +// RUN: %clang -DOP=n++ -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck --check-prefix=INC %s +// RUN: %clang -DOP=++n -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck --check-prefix=INC %s +// RUN: %clang -DOP=m-- -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck --check-prefix=DEC %s +// RUN: %clang -DOP=--m -fsanitize=unsigned-integer-overflow %s -o %t && %t 2>&1 | FileCheck --check-prefix=DEC %s + +#include <stdint.h> + +int main() { + unsigned n = 0xfffffffd; + n++; + n++; + unsigned m = 0; + // CHECK-INC: uincdec-overflow.cpp:15:3: runtime error: unsigned integer overflow: 4294967295 + 1 cannot be represented in type 'unsigned int' + // CHECK-DEC: uincdec-overflow.cpp:15:3: runtime error: unsigned integer overflow: 0 - 1 cannot be represented in type 'unsigned int' + OP; +} |