| 1 | // Check that 8-byte store updates origin for the full store range. |
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| 2 | // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1 |
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| 3 | // RUN: FileCheck %s < %t.out && FileCheck %s < %t.out |
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| 4 | // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1 |
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| 5 | // RUN: FileCheck %s < %t.out && FileCheck %s < %t.out |
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| 6 | |
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| 7 | #include <sanitizer/msan_interface.h> |
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| 8 | |
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| 9 | int main() { |
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| 10 | uint64_t *volatile p = new uint64_t; |
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| 11 | uint64_t *volatile q = new uint64_t; |
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| 12 | *p = *q; |
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| 13 | char *z = (char *)p; |
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| 14 | return z[6]; |
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| 15 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
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| 16 | // CHECK: in main {{.*}}origin-store-long.cpp:[[@LINE-2]] |
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| 17 | |
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| 18 | // CHECK: Uninitialized value was created by a heap allocation |
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| 19 | // CHECK: in main {{.*}}origin-store-long.cpp:[[@LINE-8]] |
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| 20 | } |
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| 21 | |
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| 22 | |
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