| 1 | // XFAIL:* |
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| 2 | //// Currently debug info for 'local' behaves, but 'plocal' dereferences to |
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| 3 | //// the incorrect value 0xFF after the call to esc. |
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| 4 | |
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| 5 | // REQUIRES: lldb |
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| 6 | // UNSUPPORTED: system-windows |
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| 7 | // RUN: %clang -std=gnu11 -O2 -glldb %s -o %t |
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| 8 | // RUN: %dexter --fail-lt 1.0 -w --debugger lldb --binary %t -- %s |
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| 9 | // |
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| 10 | //// Check that a pointer to a variable living on the stack dereferences to the |
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| 11 | //// variable value. |
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| 12 | |
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| 13 | int glob; |
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| 14 | __attribute__((__noinline__)) |
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| 15 | void esc(int* p) { |
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| 16 | glob = *p; |
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| 17 | *p = 0xFF; |
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| 18 | } |
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| 19 | |
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| 20 | int main() { |
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| 21 | int local = 0xA; |
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| 22 | int *plocal = &local; |
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| 23 | esc(p: plocal); // DexLabel('s1') |
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| 24 | local = 0xB; //// DSE |
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| 25 | return 0; // DexLabel('s2') |
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| 26 | } |
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| 27 | |
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| 28 | |
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| 29 | // DexExpectWatchValue('local', 0xA, on_line=ref('s1')) |
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| 30 | // DexExpectWatchValue('local', 0xB, on_line=ref('s2')) |
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| 31 | // DexExpectWatchValue('*plocal', 0xA, on_line=ref('s1')) |
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| 32 | // DexExpectWatchValue('*plocal', 0xB, on_line=ref('s2')) |
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| 33 | //// Ideally we should be able to observe the dead store to local (0xB) through |
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| 34 | //// plocal here. |
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| 35 | // DexExpectWatchValue('(local == *plocal)', 'true', from_line=ref('s1'), to_line=ref('s2')) |
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| 36 | |
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