[AArch64 3/3 big.LITTLE] Add support for -mcpu=cortex-a57.cortex-a53

gcc/

	* config/aarch64/aarch64-cores.def: Add support for
	-mcpu=cortex-a57.cortex-a53.
	* config/aarch64/aarch64-tune.md: Regenerate.
	* doc/invoke.texi: Document -mcpu=cortex-a57.cortex-a53.

From-SVN: r206100

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d8e6b99..660deeb 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,12 @@
 2013-12-18  James Greenhalgh  <james.greenhalgh@arm.com>
 
+       * config/aarch64/aarch64-cores.def: Add support for
+       -mcpu=cortex-a57.cortex-a53.
+       * config/aarch64/aarch64-tune.md: Regenerate.
+       * doc/invoke.texi: Document -mcpu=cortex-a57.cortex-a53.
+
+2013-12-18  James Greenhalgh  <james.greenhalgh@arm.com>
+
        * config/aarch64/aarch64-cores.def: Add new column for
        SCHEDULER_IDENT.
        * config/aarch64/aarch64-opts.h (AARCH64_CORE): Handle

diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def
index 1b4a49f..430cc56 100644 (file)
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -36,3 +36,7 @@
 
 AARCH64_CORE("cortex-a53",  cortexa53, cortexa53, 8,  AARCH64_FL_FPSIMD, cortexa53)
 AARCH64_CORE("cortex-a57",  cortexa15, cortexa15, 8,  AARCH64_FL_FPSIMD, generic)
+
+/* V8 big.LITTLE implementations.  */
+
+AARCH64_CORE("cortex-a57.cortex-a53",  cortexa57cortexa53, cortexa53, 8,  AARCH64_FL_FPSIMD, generic)

diff --git a/gcc/config/aarch64/aarch64-tune.md b/gcc/config/aarch64/aarch64-tune.md
index 84081d1..b7e40e0 100644 (file)
--- a/gcc/config/aarch64/aarch64-tune.md
+++ b/gcc/config/aarch64/aarch64-tune.md
@@ -1,5 +1,5 @@
 ;; -*- buffer-read-only: t -*-
 ;; Generated automatically by gentune.sh from aarch64-cores.def
 (define_attr "tune"
-       "cortexa53,cortexa15"
+       "cortexa53,cortexa15,cortexa57cortexa53"
        (const (symbol_ref "((enum attr_tune) aarch64_tune)")))

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 99ec1d2..1a6d815 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -11334,6 +11334,9 @@ possible values for @var{cpu} are @samp{generic}, @samp{cortex-a53},
 @samp{cortex-a57}.  The possible values for @var{feature} are documented
 in the sub-section below.
 
+Additionally, this option can specify that the target is a big.LITTLE system.
+The only possible value is @samp{cortex-a57.cortex-a53}.
+
 Where conflicting feature modifiers are specified, the right-most feature is
 used.