From 2f1c5cc1039d86db0037cb086bd58f4b90dc6f66 Mon Sep 17 00:00:00 2001 From: dim Date: Wed, 7 Jan 2015 19:55:37 +0000 Subject: Import compiler-rt trunk r224034. https://llvm.org/svn/llvm-project/compiler-rt/trunk@224034 --- test/ubsan/TestCases/Integer/incdec-overflow.cpp | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 test/ubsan/TestCases/Integer/incdec-overflow.cpp (limited to 'test/ubsan/TestCases/Integer/incdec-overflow.cpp') diff --git a/test/ubsan/TestCases/Integer/incdec-overflow.cpp b/test/ubsan/TestCases/Integer/incdec-overflow.cpp new file mode 100644 index 0000000..fc7141c --- /dev/null +++ b/test/ubsan/TestCases/Integer/incdec-overflow.cpp @@ -0,0 +1,16 @@ +// RUN: %clangxx -DOP=n++ -fsanitize=signed-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s +// RUN: %clangxx -DOP=++n -fsanitize=signed-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s +// RUN: %clangxx -DOP=m-- -fsanitize=signed-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s +// RUN: %clangxx -DOP=--m -fsanitize=signed-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s + +#include + +int main() { + int n = 0x7ffffffd; + n++; + n++; + int m = -n - 1; + // CHECK: incdec-overflow.cpp:15:3: runtime error: signed integer overflow: [[MINUS:-?]]214748364 + // CHECK: + [[MINUS]]1 cannot be represented in type 'int' + OP; +} -- cgit v1.1