e0f3a3b228
It's not obvious why they are needed, and tests pass. Reviewed By: lebedev.ri Differential Revision: https://reviews.llvm.org/D111859
33 lines
1.4 KiB
C++
33 lines
1.4 KiB
C++
// RUN: %clang -x c -fsanitize=pointer-overflow %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE,CHECK-NOTYPE-C
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// RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE,CHECK-TYPE-C
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// RUN: %clangxx -fsanitize=pointer-overflow %s -o %t
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// RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE,CHECK-NOTYPE-CPP
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// RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE,CHECK-TYPE-CPP
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#include <stdlib.h>
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int main(int argc, char *argv[]) {
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char *base, *result;
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base = (char *)0;
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result = base + 0;
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// CHECK-NOTYPE-C: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
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// CHECK-TYPE-C: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-offset {{.*}}summary.cpp:[[@LINE-2]]:17
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// CHECK-NOTYPE-CPP-NOT: SUMMARY:
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// CHECK-TYPE-CPP-NOT: SUMMARY:
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base = (char *)0;
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result = base + 1;
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// CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
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// CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17
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base = (char *)1;
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result = base - 1;
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// CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
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// CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-after-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17
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return 0;
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}
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