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2004-10-27 Daniel Berlin <dberlin@dberlin.org>
authordberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 27 Oct 2004 17:45:21 +0000 (17:45 +0000)
committerdberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>
Wed, 27 Oct 2004 17:45:21 +0000 (17:45 +0000)
commit1bd13ef117738b816e270e9fd9e3d475d92eb4f3
tree36b6b5291cd04acd1807e64b366402dc565251b6
parent746852fec1b23f14c601c2456929ff05f2ff6668
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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@89695 138bc75d-0d04-0410-961f-82ee72b054a4
17 files changed:
gcc/ChangeLog
gcc/tree-cfg.c
gcc/tree-dfa.c
gcc/tree-flow-inline.h
gcc/tree-flow.h
gcc/tree-into-ssa.c
gcc/tree-optimize.c
gcc/tree-pass.h
gcc/tree-pretty-print.c
gcc/tree-ssa-ccp.c
gcc/tree-ssa-dce.c
gcc/tree-ssa-loop-im.c
gcc/tree-ssa-loop-manip.c
gcc/tree-ssa-operands.c
gcc/tree-ssa-operands.h
gcc/tree-ssa.c
gcc/tree-vectorizer.c