diff options
| -rw-r--r-- | gcc/tree-ssa-loop-prefetch.cc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-prefetch.cc b/gcc/tree-ssa-loop-prefetch.cc index 70073cc..bb5d5de 100644 --- a/gcc/tree-ssa-loop-prefetch.cc +++ b/gcc/tree-ssa-loop-prefetch.cc @@ -1401,6 +1401,10 @@ determine_unroll_factor (class loop *loop, struct mem_ref_group *refs, struct mem_ref_group *agp; struct mem_ref *ref; + /* Bail out early in case we must not unroll loops. */ + if (!flag_unroll_loops) + return 1; + /* First check whether the loop is not too large to unroll. We ignore PARAM_MAX_UNROLL_TIMES, because for small loops, it prevented us from unrolling them enough to make exactly one cache line covered by each |