diff options
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index 94c58cd..9a09f5d 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -167,6 +167,7 @@ enum unroll_types #include "toplev.h" #include "hard-reg-set.h" #include "basic-block.h" +#include "predict.h" /* This controls which loops are unrolled, and by how much we unroll them. */ @@ -962,6 +963,7 @@ unroll_loop (loop, insn_count, strength_reduce_p) emit_cmp_and_jump_insns (initial_value, final_value, neg_inc ? LE : GE, NULL_RTX, mode, 0, 0, labels[1]); + predict_insn_def (get_last_insn (), PRED_LOOP_CONDITION, NOT_TAKEN); JUMP_LABEL (get_last_insn ()) = labels[1]; LABEL_NUSES (labels[1])++; } @@ -1007,6 +1009,8 @@ unroll_loop (loop, insn_count, strength_reduce_p) labels[i]); JUMP_LABEL (get_last_insn ()) = labels[i]; LABEL_NUSES (labels[i])++; + predict_insn (get_last_insn (), PRED_LOOP_PRECONDITIONING, + REG_BR_PROB_BASE / (unroll_number - i)); } /* If the increment is greater than one, then we need another branch, |