| 1 | // RUN: %clang -x c -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 2 | // RUN: %clang -x c -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 3 | // RUN: %clang -x c -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 4 | // RUN: %clang -x c -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 5 | |
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| 6 | // RUN: %clangxx -x c++ -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 7 | // RUN: %clangxx -x c++ -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 8 | // RUN: %clangxx -x c++ -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 9 | // RUN: %clangxx -x c++ -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="runtime error:" |
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| 10 | |
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| 11 | #include <stdlib.h> |
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| 12 | |
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| 13 | volatile long offset; |
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| 14 | |
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| 15 | int main(int argc, char* argv[]) { |
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| 16 | char *ptr = (char *)malloc(size: 3); |
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| 17 | |
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| 18 | offset = 1; |
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| 19 | |
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| 20 | __builtin_assume_aligned(ptr + 2, 0x8000, offset); |
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| 21 | // CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-1]]:32: runtime error: assumption of 32768 byte alignment (with offset of 1 byte) for pointer of type 'char *' failed |
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| 22 | // CHECK: 0x{{.*}}: note: offset address is {{.*}} aligned, misalignment offset is {{.*}} byte |
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| 23 | |
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| 24 | free(ptr: ptr); |
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| 25 | |
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| 26 | return 0; |
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| 27 | } |
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| 28 | |
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