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[PATCH][ARM] Wire up scheduling for Cortex-A12
- From: Kyrill Tkachov <kyrylo dot tkachov at arm dot com>
- To: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Cc: Ramana Radhakrishnan <Ramana dot Radhakrishnan at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>
- Date: Tue, 17 Dec 2013 10:51:17 +0000
- Subject: [PATCH][ARM] Wire up scheduling for Cortex-A12
- Authentication-results: sourceware.org; auth=none
Hi all,
This patch wires up the Cortex-A12 instruction scheduling to use the Cortex-A15
pipeline description and sets the issue rate for it to 2 in arm_issue_rate.
This patch depends on James' recent rework of the tuning parameters posted at
http://gcc.gnu.org/ml/gcc-patches/2013-12/msg01477.html
Tested arm-none-eabi on qemu.
Ok for trunk after the prerequisite goes in?
Thanks,
Kyrill
2013-12-17 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* config/arm/arm-cores.def (cortex-a12): Use cortexa15 scheduling.
* config/arm/arm.c (arm_issue_rate): Handle cortexa12.
* config/arm/arm.md (generic_vfp): Remove cortexa12.diff --git a/gcc/config/arm/arm-cores.def b/gcc/config/arm/arm-cores.def
index 3264eed..abe7636 100644
--- a/gcc/config/arm/arm-cores.def
+++ b/gcc/config/arm/arm-cores.def
@@ -138,7 +138,7 @@ ARM_CORE("cortex-a5", cortexa5, cortexa5, 7A, FL_LDSCHED, cortex_a5)
ARM_CORE("cortex-a7", cortexa7, cortexa7, 7A, FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV, cortex_a7)
ARM_CORE("cortex-a8", cortexa8, cortexa8, 7A, FL_LDSCHED, cortex)
ARM_CORE("cortex-a9", cortexa9, cortexa9, 7A, FL_LDSCHED, cortex_a9)
-ARM_CORE("cortex-a12", cortexa12, cortexa12, 7A, FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV, cortex_a12)
+ARM_CORE("cortex-a12", cortexa12, cortexa15, 7A, FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV, cortex_a12)
ARM_CORE("cortex-a15", cortexa15, cortexa15, 7A, FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV, cortex_a15)
ARM_CORE("cortex-r4", cortexr4, cortexr4, 7R, FL_LDSCHED, cortex)
ARM_CORE("cortex-r4f", cortexr4f, cortexr4f, 7R, FL_LDSCHED, cortex)
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
index 0fc6b76..0d773bb 100644
--- a/gcc/config/arm/arm.c
+++ b/gcc/config/arm/arm.c
@@ -28979,6 +28979,7 @@ arm_issue_rate (void)
case cortexa7:
case cortexa8:
case cortexa9:
+ case cortexa12:
case cortexa53:
case fa726te:
case marvell_pj4:
diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md
index 46fc442..c474ff1 100644
--- a/gcc/config/arm/arm.md
+++ b/gcc/config/arm/arm.md
@@ -477,7 +477,7 @@
(define_attr "generic_vfp" "yes,no"
(const (if_then_else
(and (eq_attr "fpu" "vfp")
- (eq_attr "tune" "!arm1020e,arm1022e,cortexa5,cortexa7,cortexa8,cortexa9,cortexa12,cortexa53,cortexm4,marvell_pj4")
+ (eq_attr "tune" "!arm1020e,arm1022e,cortexa5,cortexa7,cortexa8,cortexa9,cortexa53,cortexm4,marvell_pj4")
(eq_attr "tune_cortexr4" "no"))
(const_string "yes")
(const_string "no"))))