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Richard Guenther 3ba404dfe1 re PR tree-optimization/34677 (PREs insert_fake_stores is mostly useless)
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.

From-SVN: r133081
2008-03-10 17:14:45 +00:00
boehm-gc
config
contrib c.opt (Wsynth): Deprecate. 2008-03-09 17:43:10 +00:00
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gcc re PR tree-optimization/34677 (PREs insert_fake_stores is mostly useless) 2008-03-10 17:14:45 +00:00
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