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Diffstat (limited to 'gcc/tree-ssa-loop-prefetch.c')
| -rw-r--r-- | gcc/tree-ssa-loop-prefetch.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/tree-ssa-loop-prefetch.c b/gcc/tree-ssa-loop-prefetch.c index a0d70cc..35e8021 100644 --- a/gcc/tree-ssa-loop-prefetch.c +++ b/gcc/tree-ssa-loop-prefetch.c @@ -947,6 +947,13 @@ loop_prefetch_arrays (struct loop *loop) struct tree_niter_desc desc; bool unrolled = false; + if (!maybe_hot_bb_p (loop->header)) + { + if (dump_file && (dump_flags & TDF_DETAILS)) + fprintf (dump_file, " ignored (cold area)\n"); + return false; + } + /* Step 1: gather the memory references. */ refs = gather_memory_references (loop); |