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| author | Bernd Schmidt <bernds@codesourcery.com> | 2010-08-19 17:31:57 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2010-08-19 17:31:57 +0000 |
| commit | 0524d2d6623eb2ab287f464e05c206ceeb3839bf (patch) | |
| tree | 9de8d43f5bf7c9cbeb9e5e6bbf8c0c6dfbb0c5d0 /gcc/tree-loop-linear.c | |
| parent | f0d9b83660897011cb4325beb1239b5c76d9d685 (diff) | |
| download | gcc-0524d2d6623eb2ab287f464e05c206ceeb3839bf.zip gcc-0524d2d6623eb2ab287f464e05c206ceeb3839bf.tar.gz gcc-0524d2d6623eb2ab287f464e05c206ceeb3839bf.tar.bz2 | |
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
Diffstat (limited to 'gcc/tree-loop-linear.c')
0 files changed, 0 insertions, 0 deletions