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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [g++.dg/] [opt/] [cfg1.C] - Blame information for rev 693

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1 693 jeremybenn
// PR optimization/11083
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// Origin: 
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// Reduced testcase by Wolfgang Bangerth 
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// The compiler used to keep unreachable basic blocks after dead edges
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// had been purged, which fooled the LCM code of the GCSE pass.
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// { dg-do compile }
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// { dg-options "-O2 -fnon-call-exceptions" }
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extern void *memmove (void *, const void *, unsigned int) throw ();
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struct S {
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    int *q;
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    S(int *i) : q(i) {}
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};
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struct X {
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    int *p;
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    void foo(S first, S last) {
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      try        { memmove(0, 0, last.q - first.q); }
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      catch(...) { throw; }
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    }
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   void bar (const X& x);
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};
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void X::bar (const X& x)
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{
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  const unsigned int xlen = S(x.p).q - S(x.p).q;
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  if (xlen > 0)
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    foo(S(x.p), S(x.p));
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}

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