------- Comment #7 from joseph at codesourcery dot com 2008-01-06 16:28 ------- Subject: Re: Optimization generates incorrect code with -frounding-math option (#pragma STDC FENV_ACCESS not implemented)
On Sun, 6 Jan 2008, rguenth at gcc dot gnu dot org wrote: > I see. So basically we need to split all floating point operators into two > variants, one specifying a default rounding mode is used and one specifying > the > rounding mode is unknown. I suppose the frontend parts would be actually > quite > simple then? More than two variants, in the end, depending on how you handle all the other flags - but eventually, everything about GIMPLE semantics controlled by the global flags should be directly represented in the GIMPLE and the pragmas, together with the command-line options determining global defaults, would map to appropriate choices of operations / flags on those operations. This is desirable for LTO optimizing between objects compiled with different options as well. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34678
