[PATCH 2/2] mips: Add R4700 scheduling support
Matt Turner
mattst88@gmail.com
Sat Feb 25 08:12:00 GMT 2012
The R4700 is identical to the R4600 except for the integer and
floating-point multiplication costs.
See page 4 of http://datasheets.chipdb.org/IDT/MIPS/79RV4700.pdf
2012-02-24 Matt Turner <mattst88@gmail.com>
* config/mips/4600.md (r4700_imul_si): New.
(r4700_imul_di): New.
(r4700_fmul_single): New.
(r4700_fmul_double): New.
* config/mips/driver-native.c (cpu_types): Add r4700.
* config/mips/mips-cpus.def: Likewise.
* config/mips/mips.c: Likewise.
* config/mips/mips.md: Likewise.
---
gcc/config/mips/4600.md | 51 ++++++++++++++++++++++++++++++--------
gcc/config/mips/driver-native.c | 2 +-
gcc/config/mips/mips-cpus.def | 1 +
gcc/config/mips/mips.c | 3 ++
gcc/config/mips/mips.md | 1 +
5 files changed, 46 insertions(+), 12 deletions(-)
diff --git a/gcc/config/mips/4600.md b/gcc/config/mips/4600.md
index fcdbf00..ef74fd3 100644
--- a/gcc/config/mips/4600.md
+++ b/gcc/config/mips/4600.md
@@ -1,4 +1,4 @@
-;; R4600 and R4650 pipeline description.
+;; R4600, R4650, and R4700 pipeline description.
;; Copyright (C) 2004, 2005, 2007, 2012 Free Software Foundation, Inc.
;;
;; This file is part of GCC.
@@ -21,8 +21,10 @@
;; This file overrides parts of generic.md. It is derived from the
;; old define_function_unit description.
;;
-;; We handle the R4600 and R4650 in much the same way. The only difference
-;; is in the integer multiplication and division costs.
+;; We handle the R4600, R4650, and R4700 in much the same way. The only
+;; differences between R4600 and R4650 are the integer multiplication and
+;; division costs. The only differences between R4600 and R4700 are the
+;; integer and floating-point multiplication costs.
(define_insn_reservation "r4600_imul_si" 10
(and (eq_attr "cpu" "r4600")
@@ -37,13 +39,13 @@
"imuldiv*12")
(define_insn_reservation "r4600_idiv_si" 42
- (and (eq_attr "cpu" "r4600")
+ (and (eq_attr "cpu" "r4600,r4700")
(eq_attr "type" "idiv")
(eq_attr "mode" "SI"))
"imuldiv*42")
(define_insn_reservation "r4600_idiv_di" 74
- (and (eq_attr "cpu" "r4600")
+ (and (eq_attr "cpu" "r4600,r4700")
(eq_attr "type" "idiv")
(eq_attr "mode" "DI"))
"imuldiv*74")
@@ -60,13 +62,26 @@
"imuldiv*36")
+(define_insn_reservation "r4700_imul_si" 8
+ (and (eq_attr "cpu" "r4700")
+ (eq_attr "type" "imul,imul3,imadd")
+ (eq_attr "mode" "SI"))
+ "imuldiv*8")
+
+(define_insn_reservation "r4700_imul_di" 10
+ (and (eq_attr "cpu" "r4700")
+ (eq_attr "type" "imul,imul3,imadd")
+ (eq_attr "mode" "DI"))
+ "imuldiv*10")
+
+
(define_insn_reservation "r4600_load" 2
- (and (eq_attr "cpu" "r4600,r4650")
+ (and (eq_attr "cpu" "r4600,r4650,r4700")
(eq_attr "type" "load,fpload,fpidxload"))
"alu")
(define_insn_reservation "r4600_fmove" 1
- (and (eq_attr "cpu" "r4600,r4650")
+ (and (eq_attr "cpu" "r4600,r4650,r4700")
(eq_attr "type" "fabs,fneg,fmove"))
"alu")
@@ -76,26 +91,40 @@
(eq_attr "mode" "SF")))
"alu")
+
+(define_insn_reservation "r4700_fmul_single" 4
+ (and (eq_attr "cpu" "r4700")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "SF")))
+ "alu")
+
+(define_insn_reservation "r4700_fmul_double" 5
+ (and (eq_attr "cpu" "r4700")
+ (and (eq_attr "type" "fmul,fmadd")
+ (eq_attr "mode" "DF")))
+ "alu")
+
+
(define_insn_reservation "r4600_fdiv_single" 32
- (and (eq_attr "cpu" "r4600,r4650")
+ (and (eq_attr "cpu" "r4600,r4650,r4700")
(and (eq_attr "type" "fdiv,frdiv")
(eq_attr "mode" "SF")))
"alu")
(define_insn_reservation "r4600_fdiv_double" 61
- (and (eq_attr "cpu" "r4600,r4650")
+ (and (eq_attr "cpu" "r4600,r4650,r4700")
(and (eq_attr "type" "fdiv,frdiv")
(eq_attr "mode" "DF")))
"alu")
(define_insn_reservation "r4600_fsqrt_single" 31
- (and (eq_attr "cpu" "r4600,r4650")
+ (and (eq_attr "cpu" "r4600,r4650,r4700")
(and (eq_attr "type" "fsqrt,frsqrt")
(eq_attr "mode" "SF")))
"alu")
(define_insn_reservation "r4600_fsqrt_double" 60
- (and (eq_attr "cpu" "r4600,r4650")
+ (and (eq_attr "cpu" "r4600,r4650,r4700")
(and (eq_attr "type" "fsqrt,frsqrt")
(eq_attr "mode" "DF")))
"alu")
diff --git a/gcc/config/mips/driver-native.c b/gcc/config/mips/driver-native.c
index f565c57..580bca2 100644
--- a/gcc/config/mips/driver-native.c
+++ b/gcc/config/mips/driver-native.c
@@ -45,7 +45,7 @@ static const struct cpu_types {
{ C0_IMP_R14000, "r14000" },
{ C0_IMP_R8000, "r8000" },
{ C0_IMP_R4600, "r4600" },
- { C0_IMP_R4700, "r4600" },
+ { C0_IMP_R4700, "r4700" },
{ C0_IMP_R4650, "r4650" },
{ C0_IMP_R5000, "vr5000" },
{ C0_IMP_RM7000, "rm7000" },
diff --git a/gcc/config/mips/mips-cpus.def b/gcc/config/mips/mips-cpus.def
index 98b915a..d4631b0 100644
--- a/gcc/config/mips/mips-cpus.def
+++ b/gcc/config/mips/mips-cpus.def
@@ -70,6 +70,7 @@ MIPS_CPU ("r4400", PROCESSOR_R4000, 3, 0)
MIPS_CPU ("r4600", PROCESSOR_R4600, 3, 0)
MIPS_CPU ("orion", PROCESSOR_R4600, 3, 0)
MIPS_CPU ("r4650", PROCESSOR_R4650, 3, 0)
+MIPS_CPU ("r4700", PROCESSOR_R4700, 3, 0)
/* ST Loongson 2E/2F processors. */
MIPS_CPU ("loongson2e", PROCESSOR_LOONGSON_2E, 3, PTF_AVOID_BRANCHLIKELY)
MIPS_CPU ("loongson2f", PROCESSOR_LOONGSON_2F, 3, PTF_AVOID_BRANCHLIKELY)
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 56863fa..4bef60e 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -962,6 +962,9 @@ static const struct mips_rtx_cost_data
{ /* R4650 */
DEFAULT_COSTS
},
+ { /* R4700 */
+ DEFAULT_COSTS
+ },
{ /* R5000 */
COSTS_N_INSNS (6), /* fp_add */
COSTS_N_INSNS (4), /* fp_mult_sf */
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index e5d716d..cb4d98d 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -54,6 +54,7 @@
r4300
r4600
r4650
+ r4700
r5000
r5400
r5500
--
1.7.3.4
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