25 lines
539 B
C++
25 lines
539 B
C++
// Verifies that speculative loads from unions do not happen under asan.
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// RUN: %clangxx_asan -O0 %s -o %t && %run %t 2>&1
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// RUN: %clangxx_asan -O1 %s -o %t && %run %t 2>&1
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// RUN: %clangxx_asan -O2 %s -o %t && %run %t 2>&1
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// RUN: %clangxx_asan -O3 %s -o %t && %run %t 2>&1
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typedef union {
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short q;
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struct {
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short x;
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short y;
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int for_alignment;
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} w;
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} U;
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int main() {
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char *buf = new char[2];
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buf[0] = buf[1] = 0x0;
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U *u = (U *)buf;
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short result = u->q == 0 ? 0 : u->w.y;
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delete[] buf;
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return result;
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}
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