On Fri, 02 Dec 2011 20:36:16 -0500 Mike Gilbert <flop...@gentoo.org> wrote:
> I've never thought of -mfpmath=sse as a "ricer" flag. If anything, it > should make floating point calculations more consistent. Not really. It's it's extremely target processor dependent and generally the defaults are the best settings. It can vary a lot based on the SSE instructions and number of registers available and the register allocator and scheduler are optimized with that in mind. > The varying behavior between gcc versions seems like a possibly good > reason to not "support" it, but I'm not familiar with this. Has it > stabilized recently or is it still in flux? I'd say it's still in flux. The register allocator and instruction scheduler were both rewritten for 4.4 and have seen a lot of work since then. -- fonts, gcc-porting, it makes no sense how it makes no sense toolchain, wxwidgets but i'll take it free anytime @ gentoo.org EFFD 380E 047A 4B51 D2BD C64F 8AA8 8346 F9A4 0662
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