[ARM 3/5 big.LITTLE] Add support for -mcpu=cortex-a15.cortex-a7

2013-12-17  James Greenhalgh  <james.greenhalgh@arm.com>

	* config/arm/arm-cores.def (cortex-a15.cortex-a7): New.
	* doc/invoke.texi: Document -mcpu=cortex-a15.cortex-a7.
	* config/arm/arm-tables.opt: Regenerate.
	* config/arm/arm-tune.md: Regenerate.
	* config/arm/bpabi.h
	(BE8_LINK_SPEC): Handle -mcpu=cortex-a5.cortex-a7.

From-SVN: r206047

gcc/ChangeLog

 2013-12-17  James Greenhalgh  <james.greenhalgh@arm.com>
 
+	* config/arm/arm-cores.def (cortex-a15.cortex-a7): New.
+	* doc/invoke.texi: Document -mcpu=cortex-a15.cortex-a7.
+	* config/arm/arm-tables.opt: Regenerate.
+	* config/arm/arm-tune.md: Regenerate.
+	* config/arm/bpabi.h
+	(BE8_LINK_SPEC): Handle -mcpu=cortex-a5.cortex-a7.
+
+2013-12-17  James Greenhalgh  <james.greenhalgh@arm.com>
+
 	* config/arm/arm-cores.def: Add new column for TUNE_IDENT.
 	* config/arm/genopt.sh: Improve layout.
 	* config/arm/arm-tune.md: Regenerate.

gcc/config/arm/arm-cores.def

@@ -148,5 +148,8 @@ ARM_CORE("cortex-m4",		cortexm4, cortexm4,		7EM, FL_LDSCHED, v7m)
 ARM_CORE("cortex-m3",		cortexm3, cortexm3,		7M,  FL_LDSCHED, v7m)
 ARM_CORE("marvell-pj4",		marvell_pj4, marvell_pj4,	7A,  FL_LDSCHED, 9e)
 
+/* V7 big.LITTLE implementations */
+ARM_CORE("cortex-a15.cortex-a7", cortexa15cortexa7, cortexa7,	7A,  FL_LDSCHED | FL_THUMB_DIV | FL_ARM_DIV, cortex_a15)
+
 /* V8 Architecture Processors */
 ARM_CORE("cortex-a53",	cortexa53, cortexa53,	8A, FL_LDSCHED, cortex_a53)

gcc/config/arm/arm-tables.opt

@@ -283,6 +283,9 @@ EnumValue
 Enum(processor_type) String(marvell-pj4) Value(marvell_pj4)
 
 EnumValue
+Enum(processor_type) String(cortex-a15.cortex-a7) Value(cortexa15cortexa7)
+
+EnumValue
 Enum(processor_type) String(cortex-a53) Value(cortexa53)
 
 Enum

gcc/config/arm/arm-tune.md

@@ -29,5 +29,6 @@
 	cortexa8,cortexa9,cortexa12,
 	cortexa15,cortexr4,cortexr4f,
 	cortexr5,cortexr7,cortexm4,
-	cortexm3,marvell_pj4,cortexa53"
+	cortexm3,marvell_pj4,cortexa15cortexa7,
+	cortexa53"
 	(const (symbol_ref "((enum attr_tune) arm_tune)")))

gcc/config/arm/bpabi.h

@@ -60,6 +60,7 @@
    |mcpu=cortex-a7                                      \
    |mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15       \
    |mcpu=cortex-a12					\
+   |mcpu=cortex-a15.cortex-a7				\
    |mcpu=marvell-pj4					\
    |mcpu=cortex-a53					\
    |mcpu=generic-armv7-a                                \
@@ -74,6 +75,7 @@
    |mcpu=cortex-a7                                      \
    |mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15       \
    |mcpu=cortex-a12					\
+   |mcpu=cortex-a15.cortex-a7				\
    |mcpu=cortex-a53					\
    |mcpu=marvell-pj4					\
    |mcpu=generic-armv7-a                                \

gcc/doc/invoke.texi

@@ -12168,6 +12168,9 @@ assembly code.  Permissible names are: @samp{arm2}, @samp{arm250},
 @samp{fa526}, @samp{fa626},
 @samp{fa606te}, @samp{fa626te}, @samp{fmp626}, @samp{fa726te}.
 
+Additionally, this option can specify that GCC should tune the performance
+of the code for a big.LITTLE system.  The only permissible name is:
+@samp{cortex-a15.cortex-a7}.
 
 @option{-mcpu=generic-@var{arch}} is also permissible, and is
 equivalent to @option{-march=@var{arch} -mtune=generic-@var{arch}}.