* config.gcc: Add m32c-elf support.

* doc/contrib.texi: Mention m32c.
* doc/extend.texi: Document m32c extensions.
* doc/install.texi: Mention m32c.
* doc/invoke.texi: Document m32c options.
* doc/md.texi: Document m32c constraints.

* config/m32c/addsub.md: New file.
* config/m32c/bitops.md: New file.
* config/m32c/cond.md: New file.
* config/m32c/jump.md: New file.
* config/m32c/m32c-lib1.S: New file.
* config/m32c/m32c-lib2.c: New file.
* config/m32c/m32c-modes.def: New file.
* config/m32c/m32c-pragma.c: New file.
* config/m32c/m32c-protos.h: New file.
* config/m32c/m32c.abi: New file.
* config/m32c/m32c.c: New file.
* config/m32c/m32c.h: New file.
* config/m32c/m32c.md: New file.
* config/m32c/m32c.opt: New file.
* config/m32c/minmax.md: New file.
* config/m32c/mov.md: New file.
* config/m32c/muldiv.md: New file.
* config/m32c/predicates.md: New file.
* config/m32c/prologue.md: New file.
* config/m32c/shift.md: New file.
* config/m32c/t-m32c: New file.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102207 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 139 insertions, 0 deletions

diff --git a/gcc/config/m32c/prologue.md b/gcc/config/m32c/prologue.md
new file mode 100644
index 00000000000..7e78594badd
--- /dev/null
+++ b/gcc/config/m32c/prologue.md
@@ -0,0 +1,139 @@
+;; Machine Descriptions for R8C/M16C/M32C
+;; Copyright (C) 2005
+;; Free Software Foundation, Inc.
+;; Contributed by Red Hat.
+;;
+;; 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 2, 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 COPYING.  If not, write to the Free
+;; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+;; 02110-1301, USA.
+
+;; Prologue and epilogue patterns
+
+(define_expand "prologue"
+  [(const_int 1)]
+  ""
+  "m32c_emit_prologue(); DONE;"
+  )
+
+; For the next two, operands[0] is the amount of stack space we want
+; to reserve.
+
+; We assume dwarf2out will process each set in sequence.
+(define_insn "prologue_enter_16"
+  [(set (mem:HI (pre_dec:HI (reg:HI SP_REGNO)))
+	(reg:HI FB_REGNO))
+   (set (reg:HI FB_REGNO)
+	(reg:HI SP_REGNO))
+   (set (reg:HI SP_REGNO)
+	(minus:HI (reg:HI SP_REGNO)
+	           (match_operand 0 "const_int_operand" "i")))
+   ]
+  "TARGET_A16"
+  "enter\t%0"
+  )
+
+(define_insn "prologue_enter_24"
+  [(set (mem:SI (pre_dec:PSI (reg:PSI SP_REGNO)))
+	(reg:SI FB_REGNO))
+   (set (reg:PSI FB_REGNO)
+	(reg:PSI SP_REGNO))
+   (set (reg:PSI SP_REGNO)
+	(minus:PSI (reg:PSI SP_REGNO)
+	           (match_operand 0 "const_int_operand" "i")))
+   ]
+  "TARGET_A24"
+  "enter\t%0"
+  )
+
+; Just a comment, for debugging the assembler output.
+(define_insn "prologue_end"
+  [(unspec_volatile [(const_int 0)] UNS_PROLOGUE_END)]
+  ""
+  "; end of prologue"
+  )
+
+
+
+(define_expand "epilogue"
+  [(const_int 1)]
+  ""
+  "m32c_emit_epilogue(); DONE;"
+  )
+
+(define_expand "eh_return"
+  [(match_operand:PSI 0 "" "")]
+  ""
+  "m32c_emit_eh_epilogue(operands[0]); DONE;"
+  )
+
+(define_insn "eh_epilogue"
+  [(set (pc)
+	(unspec_volatile [(match_operand 0 "m32c_r1_operand" "")
+			  (match_operand 1 "m32c_r0_operand" "")
+			  ] UNS_EH_EPILOGUE))]
+  ""
+  "jmp.a\t__m32c_eh_return"
+  )
+
+(define_insn "epilogue_exitd"
+  [(set (reg:PSI SP_REGNO)
+	(reg:PSI FB_REGNO))
+   (set (reg:PSI FB_REGNO)
+	(mem:PSI (reg:PSI SP_REGNO)))
+   (set (reg:PSI SP_REGNO)
+	(plus:PSI (reg:PSI SP_REGNO)
+	      (match_operand 0 "const_int_operand" "i")))
+   (return)
+   ]
+  ""
+  "exitd"
+  )
+
+(define_insn "epilogue_reit"
+  [(set (reg:PSI SP_REGNO)
+	(plus:PSI (reg:PSI SP_REGNO)
+	      (match_operand 0 "const_int_operand" "i")))
+   (return)
+   ]
+  ""
+  "reit"
+  )
+
+(define_insn "epilogue_rts"
+  [(return)
+   ]
+  ""
+  "rts"
+  )
+
+(define_insn "epilogue_start"
+  [(unspec_volatile [(const_int 0)] UNS_EPILOGUE_START)]
+  ""
+  "; start of epilogue"
+  )
+
+
+; These are used by the prologue/epilogue code.
+
+(define_insn "pushm"
+  [(unspec [(match_operand 0 "const_int_operand" "i")] UNS_PUSHM)]
+  ""
+  "pushm\t%p0")
+
+(define_insn "popm"
+  [(unspec [(match_operand 0 "const_int_operand" "i")] UNS_POPM)]
+  ""
+  "popm\t%p0")