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PATCH: Correct the comment for cost of storing fp registers in i386.c
- From: "H. J. Lu" <hjl at lucon dot org>
- To: gcc-patches at gcc dot gnu dot org
- Date: Mon, 20 Mar 2006 21:50:05 -0800
- Subject: PATCH: Correct the comment for cost of storing fp registers in i386.c
The comments for cost of storing fp storing fp registers in i386.c are
wrong. This patch fixes them.
H.J.
----
2006-03-20 H.J. Lu <hongjiu.lu@intel.com>
* config/i386/i386.c (size_cost): Correct the comment for
cost of storing fp registers.
(i386_cost): Likewise.
(i486_cost): Likewise.
(pentium_cost): Likewise.
(pentiumpro_cost): Likewise.
(k6_cost): Likewise.
(athlon_cost): Likewise.
(k8_cost): Likewise.
(pentium4_cost): Likewise.
(nocona_cost): Likewise.
(generic64_cost): Likewise.
(generic32_cost): Likewise.
--- gcc/config/i386/i386.c.cost 2006-03-20 15:43:45.000000000 -0800
+++ gcc/config/i386/i386.c 2006-03-20 21:43:51.000000000 -0800
@@ -95,7 +95,8 @@ struct processor_costs size_cost = { /*
2, /* cost of reg,reg fld/fst */
{2, 2, 2}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {2, 2, 2}, /* cost of loading integer registers */
+ {2, 2, 2}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
3, /* cost of moving MMX register */
{3, 3}, /* cost of loading MMX registers
in SImode and DImode */
@@ -148,7 +149,8 @@ struct processor_costs i386_cost = { /*
2, /* cost of reg,reg fld/fst */
{8, 8, 8}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {8, 8, 8}, /* cost of loading integer registers */
+ {8, 8, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{4, 8}, /* cost of loading MMX registers
in SImode and DImode */
@@ -200,7 +202,8 @@ struct processor_costs i486_cost = { /*
2, /* cost of reg,reg fld/fst */
{8, 8, 8}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {8, 8, 8}, /* cost of loading integer registers */
+ {8, 8, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{4, 8}, /* cost of loading MMX registers
in SImode and DImode */
@@ -252,7 +255,8 @@ struct processor_costs pentium_cost = {
2, /* cost of reg,reg fld/fst */
{2, 2, 6}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {4, 4, 6}, /* cost of loading integer registers */
+ {4, 4, 6}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
8, /* cost of moving MMX register */
{8, 8}, /* cost of loading MMX registers
in SImode and DImode */
@@ -304,7 +308,8 @@ struct processor_costs pentiumpro_cost =
2, /* cost of reg,reg fld/fst */
{2, 2, 6}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {4, 4, 6}, /* cost of loading integer registers */
+ {4, 4, 6}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{2, 2}, /* cost of loading MMX registers
in SImode and DImode */
@@ -356,7 +361,8 @@ struct processor_costs k6_cost = {
4, /* cost of reg,reg fld/fst */
{6, 6, 6}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {4, 4, 4}, /* cost of loading integer registers */
+ {4, 4, 4}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{2, 2}, /* cost of loading MMX registers
in SImode and DImode */
@@ -408,7 +414,8 @@ struct processor_costs athlon_cost = {
4, /* cost of reg,reg fld/fst */
{4, 4, 12}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {6, 6, 8}, /* cost of loading integer registers */
+ {6, 6, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{4, 4}, /* cost of loading MMX registers
in SImode and DImode */
@@ -460,7 +467,8 @@ struct processor_costs k8_cost = {
4, /* cost of reg,reg fld/fst */
{4, 4, 12}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {6, 6, 8}, /* cost of loading integer registers */
+ {6, 6, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{3, 3}, /* cost of loading MMX registers
in SImode and DImode */
@@ -512,7 +520,8 @@ struct processor_costs pentium4_cost = {
2, /* cost of reg,reg fld/fst */
{2, 2, 6}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {4, 4, 6}, /* cost of loading integer registers */
+ {4, 4, 6}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{2, 2}, /* cost of loading MMX registers
in SImode and DImode */
@@ -564,7 +573,8 @@ struct processor_costs nocona_cost = {
3, /* cost of reg,reg fld/fst */
{12, 12, 12}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {4, 4, 4}, /* cost of loading integer registers */
+ {4, 4, 4}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
6, /* cost of moving MMX register */
{12, 12}, /* cost of loading MMX registers
in SImode and DImode */
@@ -621,7 +631,8 @@ struct processor_costs generic64_cost =
4, /* cost of reg,reg fld/fst */
{12, 12, 12}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {6, 6, 8}, /* cost of loading integer registers */
+ {6, 6, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{8, 8}, /* cost of loading MMX registers
in SImode and DImode */
@@ -676,7 +687,8 @@ struct processor_costs generic32_cost =
4, /* cost of reg,reg fld/fst */
{12, 12, 12}, /* cost of loading fp registers
in SFmode, DFmode and XFmode */
- {6, 6, 8}, /* cost of loading integer registers */
+ {6, 6, 8}, /* cost of storing fp registers
+ in SFmode, DFmode and XFmode */
2, /* cost of moving MMX register */
{8, 8}, /* cost of loading MMX registers
in SImode and DImode */