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Date: | Mon, 13 Jul 2009 10:24:58 +0100 |
From: | Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com> |
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To: | Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com> |
CC: | cygwin AT cygwin DOT com |
Subject: | Re: gcc4: -ffast-math causes segfaults |
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Dave Korn wrote: > Yaakov (Cygwin/X) wrote: >> Are there any known issues with -ffast-math that I should be aware of? > > Yes. -ffaast-math allows the compiler to generate SSE instructions. This > is a problem if used with plain uninitialised C common variable declarations, > because the PE file format doesn't have a way to specify the alignment of > common section allocations. BTW, all this is PR37216: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216 cheers, DaveK -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
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