| 1 | // RUN: %clang -x c -fsanitize=pointer-overflow %s -o %t |
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| 2 | // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE |
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| 3 | // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE |
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| 4 | |
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| 5 | // RUN: %clangxx -fsanitize=pointer-overflow %s -o %t |
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| 6 | // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE |
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| 7 | // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE |
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| 8 | |
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| 9 | #include <stdlib.h> |
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| 10 | |
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| 11 | int main(int argc, char *argv[]) { |
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| 12 | char *base, *result; |
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| 13 | |
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| 14 | base = (char *)0; |
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| 15 | result = base + 0; |
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| 16 | // CHECK-NOTYPE-NOT: SUMMARY: |
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| 17 | // CHECK-TYPE-NOT: SUMMARY: |
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| 18 | |
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| 19 | base = (char *)0; |
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| 20 | result = base + 1; |
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| 21 | // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17 |
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| 22 | // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17 |
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| 23 | |
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| 24 | base = (char *)1; |
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| 25 | result = base - 1; |
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| 26 | // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17 |
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| 27 | // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-after-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17 |
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| 28 | |
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| 29 | return 0; |
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| 30 | } |
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| 31 | |
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