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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-08-01 14:42:42 +0000 |
|---|---|---|
| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-08-01 14:42:42 +0000 |
| commit | f00b5e356b0d32c82a91371060636a9a3278caac (patch) | |
| tree | a943f2f3ae810f1ce3d69eb444965504fc297e63 /gcc/tree-ssa-loop-ivcanon.c | |
| parent | aaa9964b9cd7e1850d2a3f7ffa6a5ea32c27bfdd (diff) | |
| download | gcc-f00b5e356b0d32c82a91371060636a9a3278caac.tar.gz | |
2008-08-01 Richard Guenther <rguenther@suse.de>
* tree-ssa-pre.c (fini_pre): Take in_fre parameter. Free
loop information only if we initialized it.
(execute_pre): Call fini_pre with in_fre.
* tree-ssa-loop-ivcanon (try_unroll_loop_completely): Dump
if we do not unroll because we hit max-completely-peeled-insns.
Use our estimation for consistency, do allow shrinking.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@138522 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa-loop-ivcanon.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivcanon.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/gcc/tree-ssa-loop-ivcanon.c b/gcc/tree-ssa-loop-ivcanon.c index dc863f8b8a5..00965465342 100644 --- a/gcc/tree-ssa-loop-ivcanon.c +++ b/gcc/tree-ssa-loop-ivcanon.c @@ -184,10 +184,6 @@ try_unroll_loop_completely (struct loop *loop, ninsns = tree_num_loop_insns (loop, &eni_size_weights); - if (n_unroll * ninsns - > (unsigned) PARAM_VALUE (PARAM_MAX_COMPLETELY_PEELED_INSNS)) - return false; - unr_insns = estimated_unrolled_size (ninsns, n_unroll); if (dump_file && (dump_flags & TDF_DETAILS)) { @@ -196,6 +192,17 @@ try_unroll_loop_completely (struct loop *loop, (int) unr_insns); } + if (unr_insns > ninsns + && (unr_insns + > (unsigned) PARAM_VALUE (PARAM_MAX_COMPLETELY_PEELED_INSNS))) + { + if (dump_file && (dump_flags & TDF_DETAILS)) + fprintf (dump_file, "Not unrolling loop %d " + "(--param max-completely-peeled-insns limit reached).\n", + loop->num); + return false; + } + if (ul == UL_NO_GROWTH && unr_insns > ninsns) { |