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riscv-gcc-1
Commit 0524d2d6 by Bernd Schmidt Committed by Bernd Schmidt
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re PR tree-optimization/42172 (inefficient bit fields assignments) 

	PR target/42172
	* combine.c (combine_validate_cost): New arg I0.  All callers changed.
	Take its cost into account if nonnull.
	(insn_a_feeds_b): New static function.
	(combine_instructions): Look for four-insn combinations.
	(can_combine_p): New args PRED2, SUCC2.  All callers changed.  Take
	them into account when computing all_adjacent and looking for other
	uses.
	(combinable_i3pat): New args I0DEST, I0_NOT_IN_SRC.  All callers
	changed.  Treat them like I1DEST and I1_NOT_IN_SRC.
	(try_combine): New arg I0.  Handle four-insn combinations.
	(distribute_notes): New arg ELIM_I0.  All callers changed.  Treat it
	like ELIM_I1.

From-SVN: r163383
parent f0d9b836
Showing with 16 additions and 0 deletions
gcc/ChangeLog
2010-08-19 Bernd Schmidt <bernds@codesourcery.com>
PR target/42172
* combine.c (combine_validate_cost): New arg I0. All callers changed.
Take its cost into account if nonnull.
(insn_a_feeds_b): New static function.
(combine_instructions): Look for four-insn combinations.
(can_combine_p): New args PRED2, SUCC2. All callers changed. Take
them into account when computing all_adjacent and looking for other
uses.
(combinable_i3pat): New args I0DEST, I0_NOT_IN_SRC. All callers
changed. Treat them like I1DEST and I1_NOT_IN_SRC.
(try_combine): New arg I0. Handle four-insn combinations.
(distribute_notes): New arg ELIM_I0. All callers changed. Treat it
like ELIM_I1.
2010-08-19 Jason Merrill <jason@redhat.com>
PR c++/45307
......
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