Commit of nios2 port to trunk:

contrib/
2013-12-31  Chung-Lin Tang  <cltang@codesourcery.com>

	* config-list.mk: Add nios2-elf, nios2-linux-gnu. Corrected
	ordering of some configs.

gcc/
2013-12-31  Chung-Lin Tang  <cltang@codesourcery.com>
	    Sandra Loosemore  <sandra@codesourcery.com>
	    Based on patches from Altera Corporation

	* config.gcc (nios2-*-*): Add nios2 config targets.
	* configure.ac (TLS_SECTION_ASM_FLAG): Add nios2 case.
	("$cpu_type"): Add nios2 as new cpu type.
	* configure: Regenerate.
	* config/nios2/nios2.c: New file.
	* config/nios2/nios2.h: New file.
	* config/nios2/nios2-opts.h: New file.
	* config/nios2/nios2-protos.h: New file.
	* config/nios2/elf.h: New file.
	* config/nios2/elf.opt: New file.
	* config/nios2/linux.h: New file.
	* config/nios2/nios2.opt: New file.
	* config/nios2/nios2.md: New file.
	* config/nios2/predicates.md: New file.
	* config/nios2/constraints.md: New file.
	* config/nios2/t-nios2: New file.
	* common/config/nios2/nios2-common.c: New file.
	* doc/invoke.texi (Nios II options): Document Nios II specific
	options.
	* doc/md.texi (Nios II family): Document Nios II specific
	constraints.
	* doc/extend.texi (Function Specific Option Pragmas): Document
	Nios II supported target pragma functionality.

gcc/testsuite/
2013-12-31  Sandra Loosemore  <sandra@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>
	    Based on patches from Altera Corporation

	* gcc.dg/stack-usage-1.c (SIZE): Define case for __nios2__.
	* gcc.dg/20040813-1.c: Skip for nios2-*-*.
	* gcc.dg/20020312-2.c: Add __nios2__ case.
	* g++.dg/other/PR23205.C: Skip for nios2-*-*.
	* g++.dg/other/pr23205-2.C: Skip for nios2-*-*.
	* g++.dg/cpp0x/constexpr-rom.C: Skip for nios2-*-*.
	* g++.dg/cpp0x/alias-decl-debug-0.C: Skip for nios2-*-*.
	* g++.old-deja/g++.jason/thunk3.C: Skip for nios2-*-*.
	* lib/target-supports.exp (check_profiling_available): Check for
	nios2-*-elf.
	* gcc.c-torture/execute/pr47237.x:: Skip for nios2-*-*.
	* gcc.c-torture/execute/20101011-1.c: Skip for nios2-*-*.
	* gcc.c-torture/execute/builtins/lib/chk.c (memset): Place
	char-based memset loop before inline check, to prevent
	problems when called to initialize .bss. Update comments.
	* gcc.target/nios2/nios2.exp: New DejaGNU file.
	* gcc.target/nios2/nios2-custom-1.c: New test.
	* gcc.target/nios2/nios2-trap-insn.c: New test.
	* gcc.target/nios2/nios2-builtin-custom.c: New test.
	* gcc.target/nios2/nios2-builtin-io.c: New test.
	* gcc.target/nios2/nios2-stack-check-1.c: New test.
	* gcc.target/nios2/nios2-stack-check-2.c: New test.
	* gcc.target/nios2/nios2-rdctl.c: New test.
	* gcc.target/nios2/nios2-wrctl.c: New test.
	* gcc.target/nios2/nios2-wrctl-zero.c: New test.
	* gcc.target/nios2/nios2-wrctl-not-zero.c: New test.
	* gcc.target/nios2/nios2-rdwrctl-1.c: New test.
	* gcc.target/nios2/nios2-reg-constraints.c: New test.
	* gcc.target/nios2/nios2-ashlsi3-one_shift.c: New test.
	* gcc.target/nios2/nios2-mul-options-1.c: New test.
	* gcc.target/nios2/nios2-mul-options-2.c: New test.
	* gcc.target/nios2/nios2-mul-options-3.c: New test.
	* gcc.target/nios2/nios2-mul-options-4.c: New test.
	* gcc.target/nios2/nios2-nor.c: New test.
	* gcc.target/nios2/nios2-stxio.c: New test.
	* gcc.target/nios2/custom-fp-1.c: New test.
	* gcc.target/nios2/custom-fp-2.c: New test.
	* gcc.target/nios2/custom-fp-3.c: New test.
	* gcc.target/nios2/custom-fp-4.c: New test.
	* gcc.target/nios2/custom-fp-5.c: New test.
	* gcc.target/nios2/custom-fp-6.c: New test.
	* gcc.target/nios2/custom-fp-7.c: New test.
	* gcc.target/nios2/custom-fp-8.c: New test.
	* gcc.target/nios2/custom-fp-cmp-1.c: New test.
	* gcc.target/nios2/custom-fp-conversion.c: New test.
	* gcc.target/nios2/custom-fp-double.c: New test.
	* gcc.target/nios2/custom-fp-float.c: New test.
	* gcc.target/nios2/nios2-int-types.c: New test.
	* gcc.target/nios2/nios2-cache-1.c: New test.
	* gcc.target/nios2/nios2-cache-2.c: New test.

libgcc/
2013-12-31  Sandra Loosemore  <sandra@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>
	    Based on patches from Altera Corporation

	* config.host (nios2-*-*,nios2-*-linux*): Add nios2 host cases.
	* config/nios2/lib2-nios2.h: New file.
	* config/nios2/lib2-divmod-hi.c: New file.
	* config/nios2/linux-unwind.h: New file.
	* config/nios2/lib2-divmod.c: New file.
	* config/nios2/linux-atomic.c: New file.
	* config/nios2/t-nios2: New file.
	* config/nios2/crti.asm: New file.
	* config/nios2/t-linux: New file.
	* config/nios2/lib2-divtable.c: New file.
	* config/nios2/lib2-mul.c: New file.
	* config/nios2/tramp.c: New file.
	* config/nios2/crtn.asm: New file.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206256 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 46 insertions, 0 deletions

diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index 44a91830b48..74ba5a1d2fb 100644
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -3233,6 +3233,52 @@ Memory constraint for 45 format.
 Memory constraint for 37 format.
 @end table
 
+@item Nios II family---@file{config/nios2/constraints.md}
+@table @code
+
+@item I
+Integer that is valid as an immediate operand in an
+instruction taking a signed 16-bit number. Range
+@minus{}32768 to 32767.
+
+@item J
+Integer that is valid as an immediate operand in an
+instruction taking an unsigned 16-bit number. Range
+0 to 65535.
+
+@item K
+Integer that is valid as an immediate operand in an
+instruction taking only the upper 16-bits of a
+32-bit number. Range 32-bit numbers with the lower
+16-bits being 0.
+
+@item L
+Integer that is valid as an immediate operand for a 
+shift instruction. Range 0 to 31.
+
+@item M
+Integer that is valid as an immediate operand for
+only the value 0. Can be used in conjunction with
+the format modifier @code{z} to use @code{r0}
+instead of @code{0} in the assembly output.
+
+@item N
+Integer that is valid as an immediate operand for
+a custom instruction opcode. Range 0 to 255.
+
+@item S
+Matches immediates which are addresses in the small
+data section and therefore can be added to @code{gp}
+as a 16-bit immediate to re-create their 32-bit value.
+
+@ifset INTERNALS
+@item T
+A @code{const} wrapped @code{UNSPEC} expression,
+representing a supported PIC or TLS relocation.
+@end ifset
+
+@end table
+
 @item PDP-11---@file{config/pdp11/constraints.md}
 @table @code
 @item a