| 1 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER |
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| 2 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=all -fsanitize-recover=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER |
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| 3 | // RUN: %env_ubsan_opts=silence_unsigned_overflow=1 %run %t 2>&1 | FileCheck %s --check-prefix=SILENT-RECOVER --allow-empty |
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| 4 | // RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=unsigned-integer-overflow %s -o %t |
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| 5 | // RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT |
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| 6 | // RUN: %env_ubsan_opts=silence_unsigned_overflow=1 not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT |
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| 7 | |
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| 8 | #include <stdint.h> |
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| 9 | |
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| 10 | int main() { |
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| 11 | // These promote to 'int'. |
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| 12 | (void)(uint8_t(0xff) + uint8_t(0xff)); |
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| 13 | (void)(uint16_t(0xf0fff) + uint16_t(0x0fff)); |
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| 14 | // RECOVER-NOT: runtime error |
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| 15 | // ABORT-NOT: runtime error |
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| 16 | |
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| 17 | uint32_t k = 0x87654321; |
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| 18 | k += 0xedcba987; |
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| 19 | // RECOVER: no-recover.cpp:[[@LINE-1]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int' |
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| 20 | // ABORT: no-recover.cpp:[[@LINE-2]]:5: runtime error: unsigned integer overflow: 2271560481 + 3989547399 cannot be represented in type 'unsigned int' |
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| 21 | |
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| 22 | (void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull)); |
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| 23 | // RECOVER: 10000000000000000000 + 9000000000000000000 cannot be represented in type '{{uint64_t|unsigned long( long)?}}' |
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| 24 | // SILENT-RECOVER-NOT: runtime error |
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| 25 | // ABORT-NOT: runtime error |
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| 26 | } |
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| 27 | |
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