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Re: profiledbootstrap insn-attrtab.c compile taking forever


On 7/14/05, Richard Guenther <rguenther@suse.de> wrote:
> 
> As subject says - on x86_64 it takes a whopping 30 minutes to
> compile said with -fprofile-generate!

It's caused by -frename-registers enabled by -funroll-loops.  Compiling
with -O2 -fno-unroll-loops -fprofile-generate compared to -O2 -fno-unroll-loops
-fprofile-generate -frename-registers takes 14 minutes instead of 31.

Please consider not enabling -frename-registers for -fprofile-generate.

Thanks,
Richard.


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