install.texi (--with-cpu): Mention ARC.

2013-10-01  Joern Rennecke  <joern.rennecke@embecosm.com>
            Jeremy Bennett  <jeremy.bennett@embecosm.com>

        * doc/install.texi (--with-cpu): Mention ARC.
        (arc-*-elf32): New paragraph.
        (arc-linux-uclibc): Likewise.
        * doc/md.texi (Machine Constraints): Add ARC part.
        * doc/invoke.texi: (menu): Add ARC Options.
        (Machine Dependent Options) <ARC Options>: Add synopsis.
        (node ARC Options): Add.
        * doc/extend.texi (long_call / short_call attribute): Add ARC.
        (ARC Built-in Functions): New section defining
        generic ARC built-in functions.
        (ARC SIMD Built-in Functions): New section defining SIMD specific
        built-in functions.
        (Declaring Attributes of Functions): Extended
        description of short_call and long_call attributes for ARC and
        added index entries.


Co-Authored-By: Jeremy Bennett <jeremy.bennett@embecosm.com>

From-SVN: r203074

gcc/ChangeLog

+2013-10-01  Joern Rennecke  <joern.rennecke@embecosm.com>
+	    Jeremy Bennett  <jeremy.bennett@embecosm.com>
+
+	* doc/install.texi (--with-cpu): Mention ARC.
+	(arc-*-elf32): New paragraph.
+	(arc-linux-uclibc): Likewise.
+	* doc/md.texi (Machine Constraints): Add ARC part.
+	* doc/invoke.texi: (menu): Add ARC Options.
+	(Machine Dependent Options) <ARC Options>: Add synopsis.
+	(node ARC Options): Add.
+	* doc/extend.texi (long_call / short_call attribute): Add ARC.
+	(ARC Built-in Functions): New section defining
+	generic ARC built-in functions.
+	(ARC SIMD Built-in Functions): New section defining SIMD specific
+	built-in functions.
+	(Declaring Attributes of Functions): Extended
+	description of short_call and long_call attributes for ARC and
+	added index entries.
+
 2013-10-01  Saurabh Verma  <saurabh.verma@codito.com>
 	    Ramana Radhakrishnan  <ramana.radhakrishnan@codito.com>
 	    Joern Rennecke  <joern.rennecke@embecosm.com>

gcc/doc/install.texi

@@ -1200,8 +1200,8 @@ This is an alias for @option{--enable-tls=no}.
 @itemx --with-cpu-64=@var{cpu}
 Specify which cpu variant the compiler should generate code for by default.
 @var{cpu} will be used as the default value of the @option{-mcpu=} switch.
-This option is only supported on some targets, including ARM, i386, M68k,
-PowerPC, and SPARC@.  The @option{--with-cpu-32} and
+This option is only supported on some targets, including ARC, ARM, i386, M68k,
+PowerPC, and SPARC@.  It is mandatory for ARC@.  The @option{--with-cpu-32} and
 @option{--with-cpu-64} options specify separate default CPUs for
 32-bit and 64-bit modes; these options are only supported for i386,
 x86-64 and PowerPC.
@@ -3209,6 +3209,24 @@ This is a synonym for @samp{x86_64-*-solaris2.1[0-9]*}.
 @html
 <hr />
 @end html
+@anchor{arc-x-elf32}
+@heading arc-*-elf32
+
+Use @samp{configure --target=arc-elf32 --with-cpu=@var{cpu} --enable-languages="c,c++"}
+to configure GCC, with @var{cpu} being one of @samp{arc600}, @samp{arc601},
+or @samp{arc700}@.
+
+@html
+<hr />
+@end html
+@anchor{arc-linux-uclibc}
+@heading arc-linux-uclibc
+
+Use @samp{configure --target=arc-linux-uclibc --with-cpu=arc700 --enable-languages="c,c++"} to configure GCC@.
+
+@html
+<hr />
+@end html
 @anchor{arm-x-eabi}
 @heading arm-*-eabi
 ARM-family processors.  Subtargets that use the ELF object format

gcc/doc/md.texi

@@ -1725,6 +1725,54 @@ DF modes
 @end table
 
 
+@item ARC ---@file{config/arc/constraints.md}
+@table @code
+@item q
+Registers usable in ARCompact 16-bit instructions: @code{r0}-@code{r3},
+@code{r12}-@code{r15}.  This constraint can only match when the @option{-mq}
+option is in effect.
+
+@item e
+Registers usable as base-regs of memory addresses in ARCompact 16-bit memory
+instructions: @code{r0}-@code{r3}, @code{r12}-@code{r15}, @code{sp}.
+This constraint can only match when the @option{-mq}
+option is in effect.
+@item D
+ARC FPX (dpfp) 64-bit registers. @code{D0}, @code{D1}.
+
+@item I
+A signed 12-bit integer constant.
+
+@item Cal
+constant for arithmetic/logical operations.  This might be any constant
+that can be put into a long immediate by the assmbler or linker without
+involving a PIC relocation.
+
+@item K
+A 3-bit unsigned integer constant.
+
+@item L
+A 6-bit unsigned integer constant.
+
+@item CnL
+One's complement of a 6-bit unsigned integer constant.
+
+@item CmL
+Two's complement of a 6-bit unsigned integer constant.
+
+@item M
+A 5-bit unsigned integer constant.
+
+@item O
+A 7-bit unsigned integer constant.
+
+@item P
+A 8-bit unsigned integer constant.
+
+@item H
+Any const_double value.
+@end table
+
 @item ARM family---@file{config/arm/constraints.md}
 @table @code
 @item w