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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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1 files changed, 135 insertions, 0 deletions

diff --git a/gcc/config/m32c/jump.md b/gcc/config/m32c/jump.md
new file mode 100644
index 000000000..5f4718dfe
--- /dev/null
+++ b/gcc/config/m32c/jump.md
@@ -0,0 +1,135 @@
+;; Machine Descriptions for R8C/M16C/M32C
+;; Copyright (C) 2005, 2007, 2008, 2010
+;; 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 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/>.
+
+;; jump, conditionals, calls, etc
+
+(define_insn "indirect_jump_16"
+  [(set (pc)
+       (match_operand:HI 0 "register_operand" "Rhi"))]
+  "TARGET_A16"
+;  "jmpi.a\t%0"
+  ; no 16-bit jmpi in r8c
+  "push.b #0 | push.w\t%0 | rts"
+  [(set_attr "flags" "x")]
+  )
+
+(define_insn "indirect_jump_24"
+  [(set (pc)
+       (match_operand:PSI 0 "register_operand" "Rpi"))]
+  "TARGET_A24"
+  "jmpi.a\t%0"
+  [(set_attr "flags" "n")]
+  )
+
+(define_expand "indirect_jump"
+  [(match_operand 0 "register_operand" "")]
+  ""
+  "if (TARGET_A16)
+     emit_jump_insn (gen_indirect_jump_16(operands[0]));
+   else
+     emit_jump_insn (gen_indirect_jump_24(operands[0]));
+   DONE;"
+  )
+
+; We can replace this with jmp.s when gas supports relaxing.  m32c
+; opcodes are too complicated to try to compute their sizes here, it's
+; far easier (and more reliable) to let gas worry about it.
+(define_insn "jump"
+  [(set (pc)
+	(label_ref (match_operand 0 "" "")))]
+  ""
+  "jmp.a\t%l0"
+  [(set_attr "flags" "n")]
+)
+
+; No 16-bit indirect calls on r8c/m16c.  */
+(define_insn "call"
+  [(call (match_operand:QI 0 "memory_operand" "Si,SaSb,?Rmm")
+	 (match_operand 1 "" ""))
+   (use (match_operand 2 "immediate_operand" ""))]
+  ""
+  "*
+switch (which_alternative) {
+  case 0:
+    {
+      HOST_WIDE_INT func_vect_num = 
+      current_function_special_page_vector(XEXP (operands[0], 0));
+      if (func_vect_num)
+        {
+          operands[3] = gen_rtx_CONST_INT (VOIDmode, func_vect_num);
+          return \"jsrs\t%3\";
+        }
+      else
+        return \"jsr.a\t%0\";
+    }
+  case 1: return TARGET_A16 ? \"push.w %a0 | jsr.a\tm32c_jsri16\" : \"jsri.a\t%a0\";
+  case 2: return \"jsri.a\t%a0\";
+  default: gcc_unreachable ();
+}"
+  [(set_attr "flags" "x")]
+  )
+
+(define_insn "call_value"
+  [(set (match_operand 0 "m32c_return_operand" "=RdiRmmRpa,RdiRmmRpa,RdiRmmRpa")
+	(call (match_operand:QI 1 "memory_operand" "Si,SaSb,?Rmm")
+	      (match_operand 2 "" "")))
+   (use (match_operand 3 "immediate_operand" ""))]
+  ""
+  "*
+switch (which_alternative) {
+  case 0:
+    {
+      HOST_WIDE_INT func_vect_num = 
+      current_function_special_page_vector(XEXP (operands[1], 0));
+      if (func_vect_num)
+        {
+          operands[4] = gen_rtx_CONST_INT (VOIDmode, func_vect_num);
+          return \"jsrs\t%4\";
+        }
+      else
+        return \"jsr.a\t%1\";
+    }
+  case 1: return TARGET_A16 ? \"push.w %a1 | jsr.a\tm32c_jsri16\" : \"jsri.a\t%a1\";
+  case 2: return \"jsri.a\t%a1\";
+  default: gcc_unreachable ();
+}"
+  [(set_attr "flags" "x,x,x")]
+  )
+
+(define_expand "untyped_call"
+  [(parallel [(call (match_operand 0 "" "")
+                    (const_int 0))
+              (match_operand 1 "" "")
+              (match_operand 2 "" "")])]
+  ""
+  "
+{
+  int i;
+
+  emit_call_insn (gen_call (operands[0], const0_rtx, const0_rtx));
+
+  for (i = 0; i < XVECLEN (operands[2], 0); i++)
+    {
+      rtx set = XVECEXP (operands[2], 0, i);
+      emit_move_insn (SET_DEST (set), SET_SRC (set));
+    }
+  DONE;
+}")