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