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[Bug bootstrap/53728] [4.6 regression] Bootstrap comparison failure (gcc/varasm.o differs) with CFLAGS="-O2 -march=pentium3"
- From: "ubizjak at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Mon, 11 Mar 2013 21:11:00 +0000
- Subject: [Bug bootstrap/53728] [4.6 regression] Bootstrap comparison failure (gcc/varasm.o differs) with CFLAGS="-O2 -march=pentium3"
- Auto-submitted: auto-generated
- References: <bug-53728-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53728
--- Comment #5 from Uros Bizjak <ubizjak at gmail dot com> 2013-03-11 21:11:00 UTC ---
Created attachment 29646
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29646
Preprocessed source of the file that miscompares during bootstrap
This is a compare-debug failure with -O2 -march=pentium3
~/gcc-build-46/prev-gcc/xgcc -B ~/gcc-build-46/prev-gcc -O2 -march=pentium3
-fcompare-debug varasm.i
xgcc: error: varasm.i: -fcompare-debug failure (length)
Where gcc was configured with:
CC="gcc -m32" ~/gcc-svn/branches/gcc-4_6-branch/configure
--host=i686-pc-linux-gnu --build=i686-pc-linux-gnu --with-arch=i686
--enable-languages=c