Date: Sat, 26 May 2007 16:06:33 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Kris Kennaway <kris@obsecurity.org> Cc: freebsd-current@freebsd.org, Ed Schouten <ed@fxq.nl> Subject: Re: HEADS-UP: gcc-4.2 import appears to miscompile libm. Message-ID: <20070526230633.GA55908@troutmask.apl.washington.edu> In-Reply-To: <20070526225731.GA56181@xor.obsecurity.org> References: <20070526193128.GB54875@troutmask.apl.washington.edu> <20070526214835.GS23313@hoeg.nl> <20070526224040.GA55701@troutmask.apl.washington.edu> <20070526225731.GA56181@xor.obsecurity.org>
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On Sat, May 26, 2007 at 06:57:31PM -0400, Kris Kennaway wrote: > On Sat, May 26, 2007 at 03:40:40PM -0700, Steve Kargl wrote: > > > > Using -O instead of -O2 indeed appears to fix the problem. > > How about -O2 -fno-tree-vrp? > I'm getting there. For those new to gcc-4.x, there are -fdump-tree-* options that dump a boatload of intermediate results. I'm wading through the -fdump-tree-all directories. OK. -fno-tree-vrp does not help. -- Steve
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