Re: Some regressions from the dataflow merge

["Seongbae Park (박성배, 朴成培)" <seongbae dot park at gmail dot com>]

On 6/12/07, Richard Guenther <rguenther@suse.de> wrote:
> On Tue, 12 Jun 2007, Richard Guenther wrote:
>
> >
> > On ia64 SPEC2000 I see fma3d and applu now miscompare.
>
> On x86_64 186.wupwise ICEs with -O2 -ffast-math and FDO:
>
> /gcc/spec/sb-haydn-fdo-64/x86_64/install-200706120559/bin/gfortran -c -o
> zscal.o        -fprofile-use         -O2 -ffast-math  zscal.f
> Error from fdo_make_pass2 'specmake -j2 FDO=PASS2 build 2>
> fdo_make_pass2.err | tee fdo_make_pass2.out':
> zgemm.f: In function 'zgemm':
> zgemm.f:413: internal compiler error: in remove_insn, at emit-rtl.c:3597
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
>
> Likewise for 176.gcc:
>
> combine.c: In function 'simplify_comparison':
> combine.c:9697: internal compiler error: in remove_insn, at
> emit-rtl.c:3597
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://gcc.gnu.org/bugs.html> for instructions.
> specmake: *** [combine.o] Error 1

Sounds like there's a pass that are emitting a barrier during cfglayout mode.
I'll look at them.
--
#pragma ident "Seongbae Park, compiler, http://seongbae.blogspot.com";