diff options
| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-05-15 11:55:42 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-05-15 11:55:42 +0000 |
| commit | 3ea97a322ccdeefeb4e011cae3417fb2745e47a1 (patch) | |
| tree | 24e8969fc927638d83c75f74033649152e20c937 /gcc/recog.c | |
| parent | 7c7407bc7ec67dae6c77965ed1782feeb80c73e3 (diff) | |
| download | gcc-3ea97a322ccdeefeb4e011cae3417fb2745e47a1.tar.gz | |
* recog.c (apply_change_group): Avoid unneeded validating.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42106 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/recog.c')
| -rw-r--r-- | gcc/recog.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/recog.c b/gcc/recog.c index 86483168f7c..86209fe773a 100644 --- a/gcc/recog.c +++ b/gcc/recog.c @@ -314,6 +314,7 @@ int apply_change_group () { int i; + rtx last_validated = NULL_RTX; /* The changes have been applied and all INSN_CODEs have been reset to force rerecognition. @@ -328,7 +329,9 @@ apply_change_group () { rtx object = changes[i].object; - if (object == 0) + /* if there is no object to test or if it is the same as the one we + already tested, ignore it. */ + if (object == 0 || object == last_validated) continue; if (GET_CODE (object) == MEM) @@ -374,6 +377,7 @@ apply_change_group () but this shouldn't occur. */ validate_change (object, &PATTERN (object), newpat, 1); + continue; } else if (GET_CODE (pat) == USE || GET_CODE (pat) == CLOBBER) /* If this insn is a CLOBBER or USE, it is always valid, but is @@ -382,6 +386,7 @@ apply_change_group () else break; } + last_validated = object; } if (i == num_changes) |