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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-10-09 19:34:32 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-10-09 19:34:32 +0000 |
| commit | 68b3014cd3a1018a95ea5dec579fb7db067f35ba (patch) | |
| tree | 2af2f2975db7a7b8c8f2ff132436af6025623351 /compiler-rt/lib/ubsan/lit_tests/Integer/incdec-overflow.cpp | |
| parent | a88397d9bacf0fc59ad4c5cfd244648528aeb195 (diff) | |
| download | bcm5719-llvm-68b3014cd3a1018a95ea5dec579fb7db067f35ba.tar.gz bcm5719-llvm-68b3014cd3a1018a95ea5dec579fb7db067f35ba.zip | |
Add a runtime diagnostics library for Clang's -fcatch-undefined-behavior.
llvm-svn: 165533
Diffstat (limited to 'compiler-rt/lib/ubsan/lit_tests/Integer/incdec-overflow.cpp')
| -rw-r--r-- | compiler-rt/lib/ubsan/lit_tests/Integer/incdec-overflow.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/compiler-rt/lib/ubsan/lit_tests/Integer/incdec-overflow.cpp b/compiler-rt/lib/ubsan/lit_tests/Integer/incdec-overflow.cpp new file mode 100644 index 00000000000..8c8800b5b71 --- /dev/null +++ b/compiler-rt/lib/ubsan/lit_tests/Integer/incdec-overflow.cpp @@ -0,0 +1,16 @@ +// RUN: %clang -DOP=n++ -fcatch-undefined-behavior %s -o %t && %t 2>&1 | FileCheck %s +// RUN: %clang -DOP=++n -fcatch-undefined-behavior %s -o %t && %t 2>&1 | FileCheck %s +// RUN: %clang -DOP=m-- -fcatch-undefined-behavior %s -o %t && %t 2>&1 | FileCheck %s +// RUN: %clang -DOP=--m -fcatch-undefined-behavior %s -o %t && %t 2>&1 | FileCheck %s + +#include <stdint.h> + +int main() { + int n = 0x7ffffffd; + n++; + n++; + int m = -n - 1; + // CHECK: incdec-overflow.cpp:15:3: fatal error: signed integer overflow: [[MINUS:-?]]214748364 + // CHECK: + [[MINUS]]1 cannot be represented in type 'int' + OP; +} |
