https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127429
--- Comment #2 from Josef Melcr <jmelcr at gcc dot gnu.org> --- (In reply to Richard Biener from comment #1) > It's a correctness fix. Use -fno-protect-parens to "fast-math" it. The flag does speed it up, but only partially. It recovers about half of the performance (so 2%). Looking at the patch, I don't see a reason for why that would be. Would you know why?
