| 1 | // Test that on the second entry to a function the origins are still right. |
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| 2 | |
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| 3 | // RUN: %clangxx_msan -O0 %s -o %t && not %run %t >%t.out 2>&1 |
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| 4 | // RUN: FileCheck %s < %t.out |
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| 5 | // RUN: %clangxx_msan -O1 %s -o %t && not %run %t >%t.out 2>&1 |
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| 6 | // RUN: FileCheck %s < %t.out |
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| 7 | // RUN: %clangxx_msan -O2 %s -o %t && not %run %t >%t.out 2>&1 |
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| 8 | // RUN: FileCheck %s < %t.out |
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| 9 | // RUN: %clangxx_msan -O3 %s -o %t && not %run %t >%t.out 2>&1 |
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| 10 | // RUN: FileCheck %s < %t.out |
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| 11 | |
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| 12 | // RUN: %clangxx_msan -fsanitize-memory-track-origins -O0 %s -o %t && not %run %t >%t.out 2>&1 |
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| 13 | // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
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| 14 | // RUN: %clangxx_msan -fsanitize-memory-track-origins -O1 %s -o %t && not %run %t >%t.out 2>&1 |
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| 15 | // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
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| 16 | // RUN: %clangxx_msan -fsanitize-memory-track-origins -O2 %s -o %t && not %run %t >%t.out 2>&1 |
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| 17 | // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
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| 18 | // RUN: %clangxx_msan -fsanitize-memory-track-origins -O3 %s -o %t && not %run %t >%t.out 2>&1 |
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| 19 | // RUN: FileCheck %s < %t.out && FileCheck %s --check-prefix=CHECK-ORIGINS < %t.out |
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| 20 | |
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| 21 | #include <stdlib.h> |
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| 22 | |
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| 23 | int t; |
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| 24 | |
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| 25 | extern "C" void f(int depth) { |
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| 26 | if (depth) |
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| 27 | return f(depth: depth - 1); |
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| 28 | |
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| 29 | volatile int x; |
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| 30 | t = x; |
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| 31 | } |
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| 32 | |
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| 33 | int main(int argc, char **argv) { |
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| 34 | f(depth: 1); |
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| 35 | return t; |
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| 36 | // CHECK: WARNING: MemorySanitizer: use-of-uninitialized-value |
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| 37 | // CHECK: {{#0 0x.* in main .*stack-origin2.cpp:}}[[@LINE-2]] |
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| 38 | |
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| 39 | // CHECK-ORIGINS: Uninitialized value was created by an allocation of 'x' in the stack frame |
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| 40 | // CHECK-ORIGINS: {{#0 0x.* in f .*stack-origin2.cpp:}}[[@LINE-11]] |
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| 41 | |
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| 42 | // CHECK: SUMMARY: MemorySanitizer: use-of-uninitialized-value {{.*stack-origin2.cpp:.* main}} |
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| 43 | } |
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| 44 | |
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