| 1 | // RUN: %clangxx -DOP=n++ -fsanitize=signed-integer-overflow %s -o %t1 && %run %t1 2>&1 | FileCheck %s --check-prefix=PLUS |
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| 2 | // RUN: %clangxx -DOP=++n -fsanitize=signed-integer-overflow %s -o %t2 && %run %t2 2>&1 | FileCheck %s --check-prefix=PLUS |
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| 3 | // RUN: %clangxx -DOP=m-- -fsanitize=signed-integer-overflow %s -o %t3 && %run %t3 2>&1 | FileCheck %s --check-prefix=MINUS |
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| 4 | // RUN: %clangxx -DOP=--m -fsanitize=signed-integer-overflow %s -o %t4 && %run %t4 2>&1 | FileCheck %s --check-prefix=MINUS |
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| 5 | |
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| 6 | #include <stdint.h> |
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| 7 | |
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| 8 | int main() { |
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| 9 | int n = 0x7ffffffd; |
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| 10 | n++; |
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| 11 | n++; |
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| 12 | int m = -n - 1; |
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| 13 | OP; |
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| 14 | // PLUS: incdec-overflow.cpp:[[@LINE-1]]:3: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' |
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| 15 | // MINUS: incdec-overflow.cpp:[[@LINE-2]]:3: runtime error: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int' |
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| 16 | } |
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| 17 | |
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