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On Fri, Jul 19, 2002 at 09:02:07AM -0700, H. J. Lu wrote: > On Fri, Jul 19, 2002 at 04:25:00PM +0100, Richard Earnshaw wrote: > > > When I configure gcc for i686 with > > > > > > .../configure --target=i686-xxxxx > > > > > > I'd like to be able to make gcc generate code for i686 by default. It > > > is also useful for MIPS. I am thinking adding > > > > > > --with-default-ARCH=cpu > > > > > > or > > > > > > --with-default-CPU=cpu > > > > > > or > > > > > > --with-default-ISA=cpu > > > > > > Any comments? > > > > > > > What's wrong with the existing --with-cpu=... already supported by > > configure? > > > > Correct me if I am wrong. At least for x86, --with-cpu=i686 is no > different from --target=i686-xxxxx, as far as the default code > generation is concerned. For x86, there are -mcpu=xxx and -march=xxx. > -with-cpu=xxx sets the default -mcpu=xxx. I want something to set > the default -march=xxx. Looking at install.texi. --with-cpu should > be used to set -march=xxx for x86. But for x86, TARGET_CPU_DEFAULT > is for -mcpu=... I am looking for TARGET_ARCH_DEFAULT. --with-arch=... > will work for me. > > Here is a patch to add --with-arch=cpu. H.J.
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gcc-arch.patch
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