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[Bug bootstrap/49740] New: [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"
- From: "dougmencken at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 13 Jul 2011 20:40:57 +0000
- Subject: [Bug bootstrap/49740] New: [4.7 Regression] powerpc native bootstrap with -O3 produces "Bootstrap comparison failure!"
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49740
Summary: [4.7 Regression] powerpc native bootstrap with -O3
produces "Bootstrap comparison failure!"
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: bootstrap
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: dougmencken@gmail.com
"Bootstrap comparison failure!"
After http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49474 (well-hidden wrong
comparison in rtl (cprop.c)) has been fixed, I succeeded to stage3, and got:
Comparing stages 2 and 3
warning: gcc/cc1-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
Bootstrap comparison failure!
gcc/fold-const.o differs
gcc/tree-into-ssa.o differs
gcc/cfgrtl.o differs
gcc/gimplify.o differs
gcc/build/genattrtab.o differs
...
Full bootstrap log is available at:
http://ftp.osuosl.org/pub/manulix/logs+errors/gcc-v4.7-20110709-bootstrap.log