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Commit c04f07f4 authored by Diego Novillo's avatar Diego Novillo Committed by Diego Novillo
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re PR tree-optimization/16721 (Accesses to volatile objects optimized away) 

	PR tree-optimization/16721
	* tree-dfa.c (dump_variable): Show TREE_THIS_VOLATILE.
	* tree-ssa-alias.c (create_memory_tag): Move setting of
	TREE_THIS_VOLATILE ...
	(get_tmt_for): ... here.


testsuite/ChangeLog

	PR tree-optimization/16721
	* testsuite/gcc.dg/tree-ssa/pr16721.c: New test.

From-SVN: r87895
parent ba652ba9
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