https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62112
--- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> --- Author: glisse Date: Thu Aug 21 09:32:21 2014 New Revision: 214262 URL: https://gcc.gnu.org/viewcvs?rev=214262&root=gcc&view=rev Log: 2014-08-21 Marc Glisse <marc.gli...@inria.fr> PR tree-optimization/62112 gcc/ * gimple-iterator.c (gsi_replace): Return whether EH cleanup is needed. * gimple-iterator.h (gsi_replace): Return bool. * tree-ssa-alias.c (ref_may_alias_global_p_1): New helper, code moved from ref_may_alias_global_p. (ref_may_alias_global_p, refs_may_alias_p, ref_maybe_used_by_stmt_p): New overloads. (ref_maybe_used_by_call_p): Take ao_ref* instead of tree. (stmt_kills_ref_p_1): Rename... (stmt_kills_ref_p): ... to this. * tree-ssa-alias.h (ref_may_alias_global_p, ref_maybe_used_by_stmt_p, stmt_kills_ref_p): Declare. * tree-ssa-dse.c (dse_possible_dead_store_p): New argument, use it. Move the self-assignment case... (dse_optimize_stmt): ... here. Handle builtin calls. Remove dead code. gcc/testsuite/ * gcc.dg/tree-ssa/pr62112-1.c: New file. * gcc.dg/tree-ssa/pr62112-2.c: Likewise. * gcc.c-torture/execute/pr35472.c: Add noclone attribute. * gcc.c-torture/execute/20071219-1.c: Likewise. Added: trunk/gcc/testsuite/gcc.dg/tree-ssa/pr62112-1.c trunk/gcc/testsuite/gcc.dg/tree-ssa/pr62112-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/gimple-iterator.c trunk/gcc/gimple-iterator.h trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/gcc.c-torture/execute/20071219-1.c trunk/gcc/testsuite/gcc.c-torture/execute/pr35472.c trunk/gcc/tree-ssa-alias.c trunk/gcc/tree-ssa-alias.h trunk/gcc/tree-ssa-dse.c
