http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56294
Bug #: 56294
Summary: BOOT_CFLAGS='-O2 -g -fno-ipa-sra' leads to bootstrap
comparison failure
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: jamb...@gcc.gnu.org
Bootstrapping pristine trunk with BOOT_CFLAGS='-O2 -g -fno-ipa-sra'
leads to comparison failure because gcc/tree-ssa-loop-ivopts.o differs.
Just switching IPA-SRA on (by a patch) when compiling that file
resolves the problem.
The failure has been introduced with revision 192848:
2012-10-26 Martin Jambor <mjam...@suse.cz>
PR debug/54971
* tree-sra.c (struct access): New flag grp_to_be_debug_replaced.
(dump_access): Dump the new flag.
(analyze_access_subtree): Set the new flag when appropriate.
(create_access_replacement): Handle debug replacements differently.
(generate_subtree_copies): Handle the grp_to_be_debug_replaced flag.
(init_subtree_with_zero): Likewise.
(sra_modify_expr): Likewise.
(load_assign_lhs_subreplacements): Likewise.
(sra_modify_assign): Likewise.
So I'll assign it to myself.
