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Richard Guenther 3bc27de7f1 re PR tree-optimization/47365 (wrong code with -O -ftree-pre)
2011-01-21  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/47365
	* tree-ssa-sccvn.h (vn_lookup_kind): Declare.
	(vn_reference_lookup_pieces): Adjust.
	(vn_reference_lookup): Likewise.
	* tree-ssa-sccvn.c (vn_walk_kind): New static global.
	(vn_reference_lookup_3): Only look through kills if in
	VN_WALKREWRITE mode.
	(vn_reference_lookup_pieces): Adjust.
	(vn_reference_lookup): Likewise.
	(visit_reference_op_load): Likewise.
	(visit_reference_op_store): Likewise.
	* tree-ssa-pre.c (phi_translate_1): Use VN_WALK mode.
	(compute_avail): Likewise.
	(eliminate): Likewise.

	* gcc.dg/torture/pr47365.c: New testcase.
	* gcc.dg/tree-ssa/pr47392.c: Likewise.

From-SVN: r169089
2011-01-21 14:02:41 +00:00
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gcc re PR tree-optimization/47365 (wrong code with -O -ftree-pre) 2011-01-21 14:02:41 +00:00
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libgfortran PR47296 Segfault when running out of file descriptors 2011-01-17 07:48:10 +02:00
libgo libgo/Makefile.am: Fix typo naming socket_bsd.go. 2011-01-19 23:03:33 +00:00
libgomp re PR libstdc++/36104 (gnu-versioned-namespace is broken) 2011-01-20 23:41:24 +00:00
libiberty libiberty: add .gitignore 2011-01-18 05:06:50 +00:00
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libstdc++-v3 re PR libstdc++/47380 (concept checking and incomplete types) 2011-01-20 20:18:29 +00:00
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configure configure.ac: Use AS_HELP_STRING throughout. 2011-01-21 13:18:23 +00:00
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