| 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 | char *passthrough(__attribute__((align_value(0x8000))) char *x) { |
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| 14 | return x; |
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| 15 | } |
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| 16 | |
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| 17 | int main(int argc, char* argv[]) { |
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| 18 | char *ptr = (char *)malloc(size: 2); |
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| 19 | |
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| 20 | passthrough(x: ptr + 1); |
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| 21 | // CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-7]]:10: runtime error: assumption of 32768 byte alignment for pointer of type 'char *' failed |
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| 22 | // CHECK: {{.*}}align-assume-{{.*}}.cpp:[[@LINE-9]]:34: note: alignment assumption was specified here |
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| 23 | // CHECK: 0x{{.*}}: note: address is {{.*}} aligned, misalignment offset is {{.*}} byte |
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| 24 | |
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| 25 | // FIXME: shouldn't there be an assumption on the caller's side too? |
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| 26 | |
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| 27 | free(ptr: ptr); |
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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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