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Richard Guenther 3ceaf2f571 re PR tree-optimization/49770 (wrong code with -fno-tree-forwprop)
2011-07-21  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/49770
	* tree-ssa-sccvn.c (valueize_refs_1): Return whether we
	valueized any operand.  Renamed from ...
	(valueize_refs): ... this.  New wrapper around valueize_refs_1.
	(valueize_shared_reference_ops_from_ref): Return whether we
	valueized any operand.
	(vn_reference_lookup): Only when we valueized any operand
	use the valueized reference for alias analysis.  Do not preserve
	the original reference tree in this case.

	* g++.dg/torture/pr49770.C: New testcase.

From-SVN: r176567
2011-07-21 13:19:18 +00:00
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gcc re PR tree-optimization/49770 (wrong code with -fno-tree-forwprop) 2011-07-21 13:19:18 +00:00
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libstdc++-v3 mutex (timed_mutex, [...]): Update to use steady_clock instead of monotonic_clock. 2011-07-21 11:09:56 +00:00
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MAINTAINERS MAINTAINERS (Register Allocation): Move myself from reviewers to maintainers. 2011-07-19 15:17:52 +00:00
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