From: Jan Sjodin <jan.sjodin@amd.com>
Date: Tue, 8 Jan 2008 16:35:44 +0000 (+0000)
Subject: 2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
X-Git-Tag: releases/gcc-4.3.0~692
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cedbd7647a1c6813b7da9833f14cb9671063cb72;p=thirdparty%2Fgcc.git

2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>

       * config/i386/i386.c:
        (k8_cost, amdfam10_cost): Branch costs for vectorization tuned.

From-SVN: r131401
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3bf8fb163375..d163f6ac4047 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-01-08  Jan Sjodin  <jan.sjodin@amd.com>
+	
+	* config/i386/i386.c:
+	(k8_cost, amdfam10_cost): Branch costs for vectorization tuned.
+	
 2008-01-08  Richard Guenther  <rguenther@suse.de>
 
 	PR tree-optimization/34683
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 0f827a6de9b2..599f8646e1bc 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -701,7 +701,7 @@ struct processor_costs k8_cost = {
      to limit number of prefetches at all, as their execution also takes some
      time).  */
   100,					/* number of parallel prefetches */
-  5,					/* Branch cost */
+  3,					/* Branch cost */
   COSTS_N_INSNS (4),			/* cost of FADD and FSUB insns.  */
   COSTS_N_INSNS (4),			/* cost of FMUL instruction.  */
   COSTS_N_INSNS (19),			/* cost of FDIV instruction.  */
@@ -725,8 +725,8 @@ struct processor_costs k8_cost = {
   2,                                    /* vec_align_load_cost.  */
   3,                                    /* vec_unalign_load_cost.  */
   3,                                    /* vec_store_cost.  */
-  6,                                    /* cond_taken_branch_cost.  */
-  1,                                    /* cond_not_taken_branch_cost.  */
+  3,                                    /* cond_taken_branch_cost.  */
+  2,                                    /* cond_not_taken_branch_cost.  */
 };
 
 struct processor_costs amdfam10_cost = {
@@ -787,7 +787,7 @@ struct processor_costs amdfam10_cost = {
      to limit number of prefetches at all, as their execution also takes some
      time).  */
   100,					/* number of parallel prefetches */
-  5,					/* Branch cost */
+  2,					/* Branch cost */
   COSTS_N_INSNS (4),			/* cost of FADD and FSUB insns.  */
   COSTS_N_INSNS (4),			/* cost of FMUL instruction.  */
   COSTS_N_INSNS (19),			/* cost of FDIV instruction.  */
@@ -812,7 +812,7 @@ struct processor_costs amdfam10_cost = {
   2,                                    /* vec_align_load_cost.  */
   2,                                    /* vec_unalign_load_cost.  */
   2,                                    /* vec_store_cost.  */
-  6,                                    /* cond_taken_branch_cost.  */
+  2,                                    /* cond_taken_branch_cost.  */
   1,                                    /* cond_not_taken_branch_cost.  */
 };