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Viewing changes to tests/cris/check_gcctorture_pr28634.c

  • Committer: Bazaar Package Importer
  • Author(s): Serge Hallyn
  • Date: 2011-10-19 10:44:56 UTC
  • Revision ID: james.westby@ubuntu.com-20111019104456-xgvskumk3sxi97f4
Tags: upstream-0.15.0+noroms
Import upstream version 0.15.0+noroms

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tests/cris/check_gcctorture_pr28634.c
 
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/* PR rtl-optimization/28634.  On targets with delayed branches,
 
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   dbr_schedule could do the next iteration's addition in the
 
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   branch delay slot, then subtract the value again if the branch
 
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   wasn't taken.  This can lead to rounding errors.  */
 
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double x = -0x1.0p53;
 
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double y = 1;
 
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int
 
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main (void)
 
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{
 
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  while (y > 0)
 
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    y += x;
 
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  if (y != x + 1)
 
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    abort ();
 
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  exit (0);
 
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}