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.