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| author | Jan Hubicka <jh@suse.cz> | 2001-07-29 21:44:42 +0200 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2001-07-29 19:44:42 +0000 |
| commit | b5832b43726d2d44b202c7a5669b3e97a2bc60c2 (patch) | |
| tree | 19cc9892c443cb833b456226ee6217fae10f6a91 /gcc/rtlanal.c | |
| parent | 12285d9df86f4fa4ece1667265fe129e25287907 (diff) | |
| download | gcc-b5832b43726d2d44b202c7a5669b3e97a2bc60c2.tar.gz | |
Suggested by Richard Henderson and Richard Kenner:
* combine.c (recog_for_combine): Use the fake recog
only if instruction does not match.
* rtl.h (NOOP_MOVE_INSN_CODE): New.
* rtlanal.c (noop_move_p): Always return 1 for NOOP_MOVE_INSN_CODE.
* combine.c (try_combine): Discover noop jump as direct jump.
From-SVN: r44464
Diffstat (limited to 'gcc/rtlanal.c')
| -rw-r--r-- | gcc/rtlanal.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c index c9152ab0f8e..92220f6467a 100644 --- a/gcc/rtlanal.c +++ b/gcc/rtlanal.c @@ -1030,6 +1030,9 @@ noop_move_p (insn) { rtx pat = PATTERN (insn); + if (INSN_CODE (insn) == NOOP_MOVE_INSN_CODE) + return 1; + /* Insns carrying these notes are useful later on. */ if (find_reg_note (insn, REG_EQUAL, NULL_RTX)) return 0; |