| 1 | // RUN: %clangxx -fsanitize=signed-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s |
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| 2 | |
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| 3 | #include <stdint.h> |
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| 4 | |
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| 5 | int main() { |
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| 6 | // These promote to 'int'. |
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| 7 | (void)(int8_t(-2) * int8_t(0x7f)); |
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| 8 | (void)(int16_t(0x7fff) * int16_t(0x7fff)); |
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| 9 | (void)(uint16_t(0xffff) * int16_t(0x7fff)); |
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| 10 | (void)(uint16_t(0xffff) * uint16_t(0x8000)); |
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| 11 | |
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| 12 | // CHECK: mul-overflow.cpp:13:27: runtime error: signed integer overflow: 65535 * 32769 cannot be represented in type 'int' |
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| 13 | (void)(uint16_t(0xffff) * uint16_t(0x8001)); |
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| 14 | } |
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| 15 | |
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