forked from OSchip/llvm-project
29 lines
1014 B
C++
29 lines
1014 B
C++
// RUN: %clangxx_msan -O0 -g -DPOSITIVE %s -o %t
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// RUN: not %run %t 2>&1 | FileCheck %s
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// RUN: MSAN_OPTIONS=verbosity=1 not %run %t 2>&1 | \
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-VERBOSE
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// RUN: %clangxx_msan -O0 -g %s -o %t && %run %t
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#include <sanitizer/msan_interface.h>
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int main(void) {
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char p[32] = {};
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__msan_poison(p + 10, 2);
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__msan_check_mem_is_initialized(p, 10);
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__msan_check_mem_is_initialized(p + 12, 30);
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#ifdef POSITIVE
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__msan_check_mem_is_initialized(p + 5, 20);
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// CHECK: Uninitialized bytes in __msan_check_mem_is_initialized at offset 5 inside [0x{{.*}}, 20)
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// CHECK-VERBOSE: Shadow map [0x{{.*}}, 0x{{.*}}) of [0x{{.*}}, 0x{{.*}}), 20 bytes:
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// CHECK-VERBOSE: 0x{{.*}}: ..000000 0000ffff 00000000 00000000
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// CHECK-VERBOSE: 0x{{.*}}: 00000000 00...... ........ ........
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// CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value
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// CHECK: #0 0x{{.*}}in main{{.*}}msan_check_mem_is_initialized.cpp:[[@LINE-7]]
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#endif
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return 0;
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}
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