https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68609

            Bug ID: 68609
           Summary: PowerPC reciprocal estimate missed opportunities
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: anton at samba dot org
  Target Milestone: ---

gcc.target/i386/recip-sqrtf.c shows some missed opportunities for the
reciprocal estimate instructions. One example:

float t3(float a)
{
  return sqrtf(a);
}

On x86 (and PowerPC clang), we use the square root reciprocal estimate
instructions, but PowerPC gcc does not.

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