diff options
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) |