diff options
Diffstat (limited to 'contrib/gcc/unroll.c')
| -rw-r--r-- | contrib/gcc/unroll.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/contrib/gcc/unroll.c b/contrib/gcc/unroll.c index 590cc94..5a15208 100644 --- a/contrib/gcc/unroll.c +++ b/contrib/gcc/unroll.c @@ -2478,7 +2478,13 @@ biv_total_increment (bl) if (v->always_computable && v->mult_val == const1_rtx && ! v->maybe_multiple && SCALAR_INT_MODE_P (v->mode)) - result = fold_rtx_mult_add (result, const1_rtx, v->add_val, v->mode); + { + /* If we have already counted it, skip it. */ + if (v->same) + continue; + + result = fold_rtx_mult_add (result, const1_rtx, v->add_val, v->mode); + } else return 0; } @@ -3539,6 +3545,10 @@ loop_iterations (loop) return 0; } + /* If we have already counted it, skip it. */ + if (biv_inc->same) + continue; + offset -= INTVAL (biv_inc->add_val); } } |
