2009-01-27 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38503
* cfgexpand.c (expand_gimple_basic_block): Ignore
GIMPLE_CHANGE_DYNAMIC_TYPE during expansion.
* tree-ssa-structalias.c (set_uids_in_ptset): Do not prune
variables that cannot have TBAA applied.
(compute_points_to_sets): Do not remove GIMPLE_CHANGE_DYNAMIC_TYPE
statements.
* g++.dg/warn/Wstrict-aliasing-bogus-placement-new.C: New testcase.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@143700
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