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author | Daniel Berlin <dberlin@dberlin.org> | 2004-10-27 17:45:21 +0000 |
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committer | Daniel Berlin <dberlin@gcc.gnu.org> | 2004-10-27 17:45:21 +0000 |
commit | 52328bf6c8b1a5021ae5cae29b8317123d2a58f5 (patch) | |
tree | 36b6b5291cd04acd1807e64b366402dc565251b6 /gcc/tree-ssa-loop-im.c | |
parent | 47a3c2dcc616e8eace211fac58278055b0ebb3ba (diff) | |
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re PR tree-optimization/17133 (wrong code with -ftree-lim)
2004-10-27 Daniel Berlin <dberlin@dberlin.org>
Fix PR tree-optimization/17133
* tree-cfg.c (rewrite_to_new_ssa_names_bb): Also rewrite must
def kill operand.
* tree-flow-inline.h: V_MUST_DEF_OP became V_MUST_DEF_RESULT.
(get_v_must_def_result_ptr): Modify for new structure of
v_must_defs array.
(get_v_must_def_kill_ptr): New.
(op_iter_next_use): Add support for the kill that occurs in V_MUST_DEFs.
(op_iter_next_tree): Ditto. Also V_MAY_DEF_OP became V_MAY_DEF_RESULT.
(op_iter_next_def): V_MAY_DEF_OP became V_MAY_DEF_RESULT.
(op_iter_init): Initialize new mustu members.
(op_iter_next_mustdef): New function.
(op_iter_init_mustdef): Ditto.
* tree-flow.h (rewrite_def_def_chains): New function.
* tree-into-ssa.c (mark_def_sites): Handle mustdefkill operands.
(ssa_mark_def_sites): Ditto.
(rewrite_stmt): Ditto.
(ssa_rewrite_stmt): Ditto.
(rewrite_blocks): Factor out from rewrite_into_ssa.
(mark_def_block_sites): Ditto.
(rewrite_def_def_chains): New function, just rewrites def-def
chains without phi node insertion.
* tree-pass.h (TODO_fix_def_def_chains): New todo flag.
* tree-optimize.c (execute_todo): Handle TODO_fix_def_def_chains.
* tree-pretty-print.c (dump_vops): Print out MUST_DEF's so that
they include the rhs now.
* tree-ssa-ccp.c (visit_assignment): V_MUST_DEF_OP became
V_MUST_DEF_RESULT.
* tree-ssa-dce.c (mark_operand_necessary): Add phionly argument.
Update callers.
(mark_really_necessary_kill_operand_phis): New function.
(perform_tree_ssa_dce): Call it.
(pass_dce): Add TODO_fix_def_def_chains.
(pass_cd_dce): Ditto.
* tree-ssa-loop-im.c (determine_max_movement): Look at kills as
well.
(rewrite_mem_refs): Ditto.
* tree-ssa-loop-manip.c (find_uses_to_rename_stmt): Look at kills
as well.
* tree-ssa-operands.c (allocate_v_may_def_optype):
v_may_def_operand_type_t became v_def_use_operand_type_t.
(allocate_v_must_def_optype) Ditto.
(finalize_ssa_v_must_defs): Update for new operand type, as well
as setting the use portion as well.
(copy_virtual_operands): Copy the kill operand as well.
(create_ssa_artficial_load_stmt): V_MUST_DEF_OP became
V_MUST_DEF_RESULT.
* tree-ssa-operands.h (v_may_def_operand_type): Renamed to
v_def_use_operand_type.
(v_must_def_optype_d): Use v_def_use_operand_type.
(V_MUST_DEF_OP_*): Renamed to V_MUST_DEF_RESULT_*
(V_MUST_DEF_KILL_*): New macros.
(struct ssa_operand_iterator_d): Add num_v_mustu and v_mustu_i
members.
Rename existing must_i and num_v_must members to mustd_i and
num_v_mustd.
(SSA_OP_VMUSTDEFKILL): New flag.
(SSA_OP_VIRTUAL_KILLS): New flag.
(SSA_OP_ALL_OPERANDS): Add in SSA_OP_ALL_KILLS.
(SSA_OP_ALL_KILLS): New flag.
(FOR_EACH_SSA_MUSTDEF_OPERAND): New macro.
* tree-ssa.c (verify_ssa): Verify virtual kills as well.
* tree-vectorizer.c (vect_create_data_ref_ptr): V_MUST_DEF_OP
became V_MUST_DEF_RESULT.
(rename_variables_in_bb): Rename kill pointer as well.
* tree-dfa.c (compute_immediate_uses_for_stmt): Add kills into the
immediate uses.
From-SVN: r89695
Diffstat (limited to 'gcc/tree-ssa-loop-im.c')
-rw-r--r-- | gcc/tree-ssa-loop-im.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/gcc/tree-ssa-loop-im.c b/gcc/tree-ssa-loop-im.c index 27bc1c0..bcdd9d7 100644 --- a/gcc/tree-ssa-loop-im.c +++ b/gcc/tree-ssa-loop-im.c @@ -436,7 +436,7 @@ determine_max_movement (tree stmt, bool must_preserve_exec) if (!add_dependency (val, lim_data, loop, true)) return false; - FOR_EACH_SSA_TREE_OPERAND (val, stmt, iter, SSA_OP_VIRTUAL_USES) + FOR_EACH_SSA_TREE_OPERAND (val, stmt, iter, SSA_OP_VIRTUAL_USES | SSA_OP_VIRTUAL_KILLS) if (!add_dependency (val, lim_data, loop, false)) return false; @@ -1034,8 +1034,7 @@ rewrite_mem_refs (tree tmp_var, struct mem_ref *mem_refs) for (; mem_refs; mem_refs = mem_refs->next) { - FOR_EACH_SSA_TREE_OPERAND (var, mem_refs->stmt, iter, - (SSA_OP_VIRTUAL_DEFS | SSA_OP_VUSE)) + FOR_EACH_SSA_TREE_OPERAND (var, mem_refs->stmt, iter, SSA_OP_ALL_VIRTUALS) { var = SSA_NAME_VAR (var); bitmap_set_bit (vars_to_rename, var_ann (var)->uid); |