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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [g++.dg/] [opt/] [alias4.C] - Blame information for rev 693

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Line No. Rev Author Line
1 693 jeremybenn
// PR c++/27768
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// Alias grouping was losing some may_aliases, causing us to think
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// the store to w.p was dead.
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// { dg-do run }
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// { dg-options "-O2" }
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int N = 1;
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struct VA
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{
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  int *p, *q, *r;
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  VA() : p(), q() {}
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  VA(const VA&) : p(), q() {}
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  ~VA() { if (p) --N; }
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};
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inline void foo(VA, VA, VA) {}
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struct VB
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{
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  VA va;
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  VB() {}
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  VB(const VB&)
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  {
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    va.p = new int(va.q - va.p);
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    va.r = va.p + (va.q - va.p);
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    foo(va, va, va);
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  }
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};
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struct VC : VB { char c; };
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struct V : VC {};
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struct WA
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{
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  struct X {};
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  X **p, **q, **r;
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  WA() : p() {}
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  ~WA() { if (p) --N; }
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};
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struct W : WA {};
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int main()
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{
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  {
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    V v, u(v);
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    W w;
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  }
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  return N;
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}

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