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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [tree-ssa/] [ssa-fre-10.c] - Blame information for rev 298

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Line No. Rev Author Line
1 298 jeremybenn
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-pre-stats" } */
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union loc {  unsigned reg; signed offset; };
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void __frame_state_for (volatile char *state_in, int x)
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{
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  /* We should move all the loads out of this loop. Right now, we only
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     move one.  It takes two insertions because we insert a cast.  */
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    union loc fs;
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    int reg;
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    for (;;)     {
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        switch (x)  {
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            case 0:
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                *state_in = fs.reg;
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            case 1:
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                *state_in = fs.offset;
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        }
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    }
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}
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/* This is a weird testcase.  It should need PPRE to hoist the loop
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   invariants and the volatileness of state_in prevents DSE of the
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   first store.  Thus, this is XFAILed.  */
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/* { dg-final { scan-tree-dump "Insertions: 2" "pre" { xfail *-*-* } } } */
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/* { dg-final { cleanup-tree-dump "pre" } } */

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