Add new nds32 port, including machine description, libgcc, and documentation.

[gcc/ChangeLog]
	* config.gcc (nds32*-*-*): Add nds32 target.
	* config/nds32/nds32.c: New file.
	* config/nds32/nds32.h: New file.
	* config/nds32/nds32.md: New file.
	* config/nds32/constants.md: New file.
	* config/nds32/constraints.md: New file.
	* config/nds32/iterators.md: New file.
	* config/nds32/nds32-doubleword.md: New file.
	* config/nds32/nds32-intrinsic.md: New file.
	* config/nds32/nds32_intrinsic.h: New file.
	* config/nds32/nds32-modes.def: New file.
	* config/nds32/nds32-multiple.md: New file.
	* config/nds32/nds32.opt: New file.
	* config/nds32/nds32-opts.h: New file.
	* config/nds32/nds32-protos.h: New file.
	* config/nds32/nds32-peephole2.md: New file.
	* config/nds32/pipelines.md: New file.
	* config/nds32/predicates.md: New file.
	* config/nds32/t-mlibs: New file.
	* common/config/nds32: New directory and files.

	* doc/invoke.texi (NDS32 options): Document nds32 specific options.
	* doc/md.texi (NDS32 family): Document nds32 specific constraints.
	* doc/install.texi (Cross-Compiler-Specific Options): Document
	--with-nds32-lib for nds32 target.
	* doc/extend.texi (Function Attributes, Target Builtins): Document
	nds32 specific attributes.
	
[libgcc/ChangeLog]
	* config.host (nds32*-elf*): Add nds32 target.
	* config/nds32 : New directory and files.
	
[contrib/ChangeLog]
	* config-list.mk (nds32le-elf, nds32be-elf): Add nds32 target.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204269 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 46 insertions, 0 deletions

diff --git a/gcc/config/nds32/constants.md b/gcc/config/nds32/constants.md
new file mode 100644
index 00000000000..03a21dba1b2
--- /dev/null
+++ b/gcc/config/nds32/constants.md
@@ -0,0 +1,46 @@
+;; Constant defintions of Andes NDS32 cpu for GNU compiler
+;; Copyright (C) 2012-2013 Free Software Foundation, Inc.
+;; Contributed by Andes Technology Corporation.
+;;
+;; This file is part of GCC.
+;;
+;; GCC is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published
+;; by the Free Software Foundation; either version 3, or (at your
+;; option) any later version.
+;;
+;; GCC is distributed in the hope that it will be useful, but WITHOUT
+;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+;; License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with GCC; see the file COPYING3.  If not see
+;; <http://www.gnu.org/licenses/>.
+
+
+;; Register numbers.
+(define_constants
+  [(R8_REGNUM  8)
+   (TA_REGNUM 15)
+   (FP_REGNUM 28)
+   (GP_REGNUM 29)
+   (LP_REGNUM 30)
+   (SP_REGNUM 31)
+  ])
+
+
+;; The unspec_volatile operation index.
+(define_c_enum "unspec_volatile_element" [
+  UNSPEC_VOLATILE_FUNC_RETURN
+  UNSPEC_VOLATILE_ISYNC
+  UNSPEC_VOLATILE_ISB
+  UNSPEC_VOLATILE_MFSR
+  UNSPEC_VOLATILE_MFUSR
+  UNSPEC_VOLATILE_MTSR
+  UNSPEC_VOLATILE_MTUSR
+  UNSPEC_VOLATILE_SETGIE_EN
+  UNSPEC_VOLATILE_SETGIE_DIS
+])
+
+;; ------------------------------------------------------------------------