derek.holloway
7502bf64a4
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27 lines
1.5 KiB
C++
27 lines
1.5 KiB
C++
// RUN: %clangxx -fsanitize=unsigned-integer-overflow %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefix=RECOVER
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// 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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// RUN: %env_ubsan_opts=silence_unsigned_overflow=1 %run %t 2>&1 | FileCheck %s --check-prefix=SILENT-RECOVER --allow-empty
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// RUN: %clangxx -fsanitize=unsigned-integer-overflow -fno-sanitize-recover=unsigned-integer-overflow %s -o %t
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// RUN: not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT
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// RUN: %env_ubsan_opts=silence_unsigned_overflow=1 not %run %t 2>&1 | FileCheck %s --check-prefix=ABORT
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#include <stdint.h>
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int main() {
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// These promote to 'int'.
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(void)(uint8_t(0xff) + uint8_t(0xff));
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(void)(uint16_t(0xf0fff) + uint16_t(0x0fff));
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// RECOVER-NOT: runtime error
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// ABORT-NOT: runtime error
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uint32_t k = 0x87654321;
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k += 0xedcba987;
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// 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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// 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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(void)(uint64_t(10000000000000000000ull) + uint64_t(9000000000000000000ull));
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// RECOVER: 10000000000000000000 + 9000000000000000000 cannot be represented in type '{{uint64_t|unsigned long( long)?}}'
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// SILENT-RECOVER-NOT: runtime error
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// ABORT-NOT: runtime error
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}
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