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Rewrite to use independant test structures.

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From-SVN: r29822
This commit is contained in:
Richard Henderson 1999-10-04 22:18:54 -07:00 • committed by Richard Henderson
parent 6343a50edf
commit 09051660d2
2 changed files with 2027 additions and 1625 deletions
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38
gcc/ChangeLog
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@ -1,3 +1,41 @@
Mon Oct 4 21:47:31 1999 Richard Henderson <rth@cygnus.com>
* genrecog.c (struct decision_test): New.
(struct decision): Remove test-related members, sort the rest by size.
(IS_SPLIT): Simplify.
(new_decision, new_decision_test): New.
(add_to_sequence): Use them. No special handling for args of
non-MATCH codes.
(maybe_both_true): Renamed from not_both_true; return sense changed.
(maybe_both_true_1, maybe_both_true_2): New. Broken out
of maybe_both_true and adjusted for decision_test.
(position_merit): Remove.
(nodes_identical, nodes_identical_1): New, broken out of merge_trees.
(merge_accept_insn): New, broken out of merge_trees.
(merge_trees): Use them. No special case for c_test; no node
splitting; use test type instead of position_merit.
(factor_tests): New.
(simplify_tests): New.
(break_out_subroutines): Don't write code now.
(find_afterward): New.
(write_afterward, write_switch, write_cond): New.
(write_action, is_unconditional): New.
(write_node): New. Use them.
(write_tree_1): Rewrite. Use the new functions above.
(write_tree): Remove afterward processing.
(write_subroutine): Simplify function variant emission.
(write_subroutines): New.
(same_codes, clear_codes): Remove.
(same_modes, clear_modes): Remove.
(write_header): New, broken out of main.
(make_insn_sequence): Use new_decision and new_decision_test.
(process_tree): New, broken out of main.
(main): Adjust for merge_trees interface change.
Don't #define operands in the output file.
(record_insn_name): New, broken out of make_insn_sequence.
(debug_decision_2, debug_decision_1, debug_decision_0): New.
(debug_decision): New.
1999-10-04 21:58 -0700 Zack Weinberg <zack@bitmover.com>
* resource.c (find_free_register): Mark class_str argument const.

3614
gcc/genrecog.c
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