diff options
Diffstat (limited to 'gcc/loop-unroll.c')
| -rw-r--r-- | gcc/loop-unroll.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/gcc/loop-unroll.c b/gcc/loop-unroll.c index c5653b2c051..77d454f35bc 100644 --- a/gcc/loop-unroll.c +++ b/gcc/loop-unroll.c @@ -953,8 +953,8 @@ unroll_loop_runtime_iterations (struct loop *loop) { rtx old_niter, niter, init_code, branch_code, tmp; unsigned i, j, p; - basic_block preheader, *body, *dom_bbs, swtch, ezc_swtch; - unsigned n_dom_bbs; + basic_block preheader, *body, swtch, ezc_swtch; + VEC (basic_block, heap) *dom_bbs; sbitmap wont_exit; int may_exit_copy; unsigned n_peel; @@ -972,21 +972,20 @@ unroll_loop_runtime_iterations (struct loop *loop) opt_info = analyze_insns_in_loop (loop); /* Remember blocks whose dominators will have to be updated. */ - dom_bbs = XCNEWVEC (basic_block, n_basic_blocks); - n_dom_bbs = 0; + dom_bbs = NULL; body = get_loop_body (loop); for (i = 0; i < loop->num_nodes; i++) { - unsigned nldom; - basic_block *ldom; + VEC (basic_block, heap) *ldom; + basic_block bb; - nldom = get_dominated_by (CDI_DOMINATORS, body[i], &ldom); - for (j = 0; j < nldom; j++) - if (!flow_bb_inside_loop_p (loop, ldom[j])) - dom_bbs[n_dom_bbs++] = ldom[j]; + ldom = get_dominated_by (CDI_DOMINATORS, body[i]); + for (j = 0; VEC_iterate (basic_block, ldom, j, bb); j++) + if (!flow_bb_inside_loop_p (loop, bb)) + VEC_safe_push (basic_block, heap, dom_bbs, bb); - free (ldom); + VEC_free (basic_block, heap, ldom); } free (body); @@ -1105,7 +1104,7 @@ unroll_loop_runtime_iterations (struct loop *loop) } /* Recount dominators for outer blocks. */ - iterate_fix_dominators (CDI_DOMINATORS, dom_bbs, n_dom_bbs); + iterate_fix_dominators (CDI_DOMINATORS, dom_bbs, false); /* And unroll loop. */ @@ -1177,8 +1176,7 @@ unroll_loop_runtime_iterations (struct loop *loop) "in runtime, %i insns\n", max_unroll, num_loop_insns (loop)); - if (dom_bbs) - free (dom_bbs); + VEC_free (basic_block, heap, dom_bbs); } /* Decide whether to simply peel LOOP and how much. */ |