[Bug tree-optimization/51879] Missed tail merging with non-const/pure calls
vries at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Fri Apr 27 06:13:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51879
--- Comment #9 from vries at gcc dot gnu.org 2012-04-27 06:12:55 UTC ---
Author: vries
Date: Fri Apr 27 06:12:49 2012
New Revision: 186894
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186894
Log:
2012-04-27 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/51879
* tree-ssa-sccvn.h (struct vn_reference_s): Add result_vdef field.
* tree-ssa-sccvn.c (mark_use_processed): New function, factored out
of ...
(defs_to_varying): ... here. Don't set use_processed.
(visit_reference_op_call): Handle gimple_vdef.
Handle case that lhs is NULL_TREE.
(visit_use): Use mark_use_processed. Handle calls with side-effect
using visit_reference_op_call.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-sccvn.c
trunk/gcc/tree-ssa-sccvn.h
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