------- Comment #6 from rguenth at gcc dot gnu dot org 2008-12-10 16:26 ------- Subject: Bug 38207
Author: rguenth Date: Wed Dec 10 16:25:27 2008 New Revision: 142649 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=142649 Log: 2008-12-10 Richard Guenther <[EMAIL PROTECTED]> PR tree-optimization/38207 * tree-flow.h: Include tree-ssa-alias.h. (get_single_def_stmt, get_single_def_stmt_from_phi, get_single_def_stmt_with_phi): Remove. (refs_may_alias_p): Move ... * tree-ssa-alias.h: ... here. New file. * tree-dfa.c (refs_may_alias_p): Handle non-aliased locals. (get_single_def_stmt, get_single_def_stmt_from_phi, get_single_def_stmt_with_phi): Remove. * tree-ssa-alias.c: Include tree-ssa-alias.h. (call_may_clobber_ref_p): New function. (stmt_may_clobber_ref_p): Likewise. (get_single_incoming_phi_arg_for_maybe_loop_invariant_ref): Likewise. (walk_non_aliased_vuses): Likewise. * Makefile.in (TREE_FLOW_H): Add tree-ssa-alias.h. * tree-ssa-sccvn.c (SSA_VAL): Revert handling NULL arguments. (get_def_ref_stmt_vuse): Remove. (vn_reference_lookup_2): New function. (vn_reference_lookup_pieces): Use walk_non_aliased_vuses for walking equivalent vuses. (vn_reference_lookup): Likewise. * gcc.dg/tree-ssa/ssa-fre-18.c: New testcase. * gcc.dg/tree-ssa/ssa-fre-19.c: Likewise. * gcc.dg/tree-ssa/ssa-lim-3.c: Run at -O to disable PRE. * gcc.dg/tree-ssa/ssa-pre-23.c: New testcase. * gcc.dg/tree-ssa/ssa-pre-24.c: Likewise. Added: branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-18.c branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-19.c branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-23.c branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-24.c branches/alias-improvements/gcc/tree-ssa-alias.h Modified: branches/alias-improvements/gcc/ChangeLog.alias branches/alias-improvements/gcc/Makefile.in branches/alias-improvements/gcc/testsuite/gcc.dg/tree-ssa/ssa-lim-3.c branches/alias-improvements/gcc/tree-dfa.c branches/alias-improvements/gcc/tree-flow.h branches/alias-improvements/gcc/tree-ssa-alias.c branches/alias-improvements/gcc/tree-ssa-sccvn.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38207
