[Bug tree-optimization/34677] PREs insert_fake_stores is mostly useless
rguenth at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Mon Mar 10 17:16:00 GMT 2008
------- Comment #6 from rguenth at gcc dot gnu dot org 2008-03-10 17:15 -------
Subject: Bug 34677
Author: rguenth
Date: Mon Mar 10 17:14:45 2008
New Revision: 133081
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133081
Log:
2008-03-10 Richard Guenther <rguenther@suse.de>
PR tree-optimization/34677
* tree-ssa-pre.c (modify_expr_node_pool): Remove.
(poolify_tree): Likewise.
(modify_expr_template): Likewise.
(poolify_modify_stmt): Likewise.
(insert_fake_stores): Handle all component-ref style stores
in addition to INDIRECT_REF. Also handle complex types.
Do not poolify the inserted load.
(realify_fake_stores): Do not rebuild the tree but only
make it a SSA_NAME copy.
(init_pre): Remove initialzation of modify_expr_template.
Do not allocate modify_expr_node_pool.
(fini_pre): Do not free modify_expr_node_pool.
* gcc.dg/tree-ssa/loadpre23.c: New testcase.
* gcc.dg/tree-ssa/loadpre24.c: Likewise.
* gcc.dg/tree-ssa/loadpre25.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/loadpre23.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/loadpre24.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/loadpre25.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34677
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