From d03f2c17a2152d2398ad30718d8f050fcd1304a0 Mon Sep 17 00:00:00 2001
From: Eric Botcazou <ebotcazou@adacore.com>
Date: Sat, 15 Nov 2014 12:06:23 +0000
Subject: [PATCH] tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add log
message for max-completely-peeled-insns limit.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add log message
for max-completely-peeled-insns limit.
From-SVN: r217601
---
gcc/ChangeLog | 5 +++++
gcc/tree-ssa-loop-ivcanon.c | 13 +++++++++----
2 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c9bc412d2408..b6f6279a163b 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-11-15 Eric Botcazou <ebotcazou@adacore.com>
+
+ * tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Add log message
+ for max-completely-peeled-insns limit.
+
2014-11-14 Jan Hubicka <hubicka@ucw.cz>
* ipa-prop.h (ipa_known_type_data): Remove.
diff --git a/gcc/tree-ssa-loop-ivcanon.c b/gcc/tree-ssa-loop-ivcanon.c
index 9bc8842946c6..c874b8bc04d8 100644
--- a/gcc/tree-ssa-loop-ivcanon.c
+++ b/gcc/tree-ssa-loop-ivcanon.c
@@ -674,7 +674,7 @@ try_unroll_loop_completely (struct loop *loop,
HOST_WIDE_INT maxiter,
location_t locus)
{
- unsigned HOST_WIDE_INT n_unroll = 0, ninsns, max_unroll, unr_insns;
+ unsigned HOST_WIDE_INT n_unroll = 0, ninsns, unr_insns;
gimple cond;
struct loop_size size;
bool n_unroll_found = false;
@@ -720,9 +720,14 @@ try_unroll_loop_completely (struct loop *loop,
if (!n_unroll_found)
return false;
- max_unroll = PARAM_VALUE (PARAM_MAX_COMPLETELY_PEEL_TIMES);
- if (n_unroll > max_unroll)
- return false;
+ if (n_unroll > (unsigned) PARAM_VALUE (PARAM_MAX_COMPLETELY_PEEL_TIMES))
+ {
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ fprintf (dump_file, "Not unrolling loop %d "
+ "(--param max-completely-peeled-times limit reached).\n",
+ loop->num);
+ return false;
+ }
if (!edge_to_cancel)
edge_to_cancel = loop_edge_to_cancel (loop);
--
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