https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98264
David Binderman <dcb314 at hotmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tamar.christina at arm dot com --- Comment #6 from David Binderman <dcb314 at hotmail dot com> --- Looks good. So range is [501f470267445e03..3ed472af6bc9f83b]. Both of those have author Tamar Christina <tamar.christ...@arm.com> I am no expert at git bisect, so over to Tamar for further advice. I used a configure line of ./trunk.git/configure --prefix=/home/dcb/gcc/results.$HASH \ --disable-bootstrap \ --disable-multilib \ --disable-werror \ --with-pkgversion=$HASH \ --enable-checking=release \ --enable-languages=c with sed 's/-O2/-O0/' < Makefile > Makefile.tmp diff Makefile Makefile.tmp mv Makefile.tmp Makefile Any news of anything faster would be appreciated.