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17 lines
764 B
17 lines
764 B
4 months ago
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// RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out && FileCheck %s < %t.out
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// RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1
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// RUN: FileCheck %s < %t.out && FileCheck %s < %t.out
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#include <sanitizer/msan_interface.h>
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int main(int argc, char **argv) {
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int x;
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int *volatile p = &x;
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return __sanitizer_unaligned_load32(p);
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// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK: {{#0 0x.* in main .*unaligned_read_origin.cc:}}[[@LINE-2]]
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// CHECK: Uninitialized value was created by an allocation of 'x' in the stack frame of function 'main'
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// CHECK: {{#0 0x.* in main .*unaligned_read_origin.cc:}}[[@LINE-7]]
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}
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