| 1 | // RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB-C |
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| 2 | // RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB-C |
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| 3 | // RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB-C |
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| 4 | // RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB-C |
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| 5 | |
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| 6 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK |
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| 7 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK |
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| 8 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK |
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| 9 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK |
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| 10 | |
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| 11 | // RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 12 | // RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 13 | // RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 14 | // RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 15 | |
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| 16 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O0 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 17 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O1 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 18 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O2 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 19 | // RUN: %clangxx -x c++ -fsanitize=pointer-overflow -O3 %s -o %t && %run %t I_AM_UB 2>&1 | FileCheck %s --implicit-check-not="runtime error:" --check-prefix=CHECK-UB |
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| 20 | |
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| 21 | #include <stdint.h> |
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| 22 | #include <stdio.h> |
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| 23 | |
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| 24 | // Just so deduplication doesn't do anything. |
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| 25 | static char *getelementpointer_inbounds_v0(char *base, unsigned long offset) { |
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| 26 | // Potentially UB. |
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| 27 | return base + offset; |
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| 28 | } |
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| 29 | |
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| 30 | int main(int argc, char *argv[]) { |
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| 31 | char *base; |
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| 32 | unsigned long offset; |
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| 33 | |
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| 34 | printf(format: "Dummy\n" ); |
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| 35 | // CHECK: Dummy |
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| 36 | |
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| 37 | base = (char *)0; |
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| 38 | offset = argc - 1; |
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| 39 | (void)getelementpointer_inbounds_v0(base, offset); |
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| 40 | // CHECK-UB: {{.*}}.cpp:[[@LINE-13]]:15: runtime error: applying non-zero offset 1 to null pointer |
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| 41 | // CHECK-UB-C: {{.*}}.cpp:[[@LINE-14]]:15: runtime error: applying zero offset to null pointer |
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| 42 | |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |
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