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2008-04-23 Richard Guenther <rguenther@suse.de> PR tree-optimization/27799 PR tree-optimization/32921 PR tree-optimization/32624 * tree-ssa-structalias.c (merge_smts_into): Only merge the SMTs aliases and the tag itself into the solution. * tree-ssa-alias.c (compute_flow_sensitive_aliasing): Do not merge the points-to solution back into the SMT aliases. (may_alias_p): Use alias_set_subset_of instead of aliases_conflict_p. A pointer which points to memory with alias set zero may access any variable. * gcc.dg/tree-ssa/pr27799.c: New testcase. * gcc.dg/tree-ssa/20030807-7.c: Remove xfail, scan vrp dump. From-SVN: r134598
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