profiledbootstrap insn-attrtab.c compile taking forever

[R Hill]

Richard Guenther wrote:
> 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.

I thought -frename-registers defaulted to disabled now.  On the 4.0 
branch the manual states it's not enabled by opt switches due to known 
bugs.  Is it also enabled by -funroll-loops on the branch?

--de.