From c43a8a1a732928bf9e1c35fb60b634fd6a66b750 Mon Sep 17 00:00:00 2001
From: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 7 Dec 2006 12:56:02 +0000
Subject: [PATCH] * i386.c (nocona_cost, pentium4_cost): Update
preffered memcpy/memset codegen.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119620 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 5 +++++
gcc/config/i386/i386.c | 8 ++++----
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aac2bb13e290..4c63be49300e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-12-07 Jan Hubicka <jh@suse.cz>
+
+ * i386.c (nocona_cost, pentium4_cost): Update preffered memcpy/memset
+ codegen.
+
2006-12-07 Jan Hubicka <jh@suse.cz>
* tree-vrp.c (compare_values): Short circuit INTEGER_CST;
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 9dc2feb3d057..fd5c27cc0fc7 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -655,9 +655,9 @@ struct processor_costs pentium4_cost = {
COSTS_N_INSNS (2), /* cost of FABS instruction. */
COSTS_N_INSNS (2), /* cost of FCHS instruction. */
COSTS_N_INSNS (43), /* cost of FSQRT instruction. */
- {{libcall, {{12, loop_1_byte}, {64, loop}, {-1, rep_prefix_4_byte}}},
+ {{libcall, {{12, loop_1_byte}, {-1, rep_prefix_4_byte}}},
DUMMY_STRINGOP_ALGS},
- {{libcall, {{6, loop_1_byte}, {64, loop}, {20480, rep_prefix_4_byte},
+ {{libcall, {{6, loop_1_byte}, {48, loop}, {20480, rep_prefix_4_byte},
{-1, libcall}}},
DUMMY_STRINGOP_ALGS},
};
@@ -713,10 +713,10 @@ struct processor_costs nocona_cost = {
COSTS_N_INSNS (3), /* cost of FABS instruction. */
COSTS_N_INSNS (3), /* cost of FCHS instruction. */
COSTS_N_INSNS (44), /* cost of FSQRT instruction. */
- {{libcall, {{12, loop_1_byte}, {64, loop}, {-1, rep_prefix_4_byte}}},
+ {{libcall, {{12, loop_1_byte}, {-1, rep_prefix_4_byte}}},
{libcall, {{32, loop}, {20000, rep_prefix_8_byte},
{100000, unrolled_loop}, {-1, libcall}}}},
- {{libcall, {{6, loop_1_byte}, {64, loop}, {20480, rep_prefix_4_byte},
+ {{libcall, {{6, loop_1_byte}, {48, loop}, {20480, rep_prefix_4_byte},
{-1, libcall}}},
{libcall, {{24, loop}, {64, unrolled_loop},
{8192, rep_prefix_8_byte}, {-1, libcall}}}}
--
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