mips.c (mips_expand_prologue): Handle case when generating for MIPS16 and the…

mips.c (mips_expand_prologue): Handle case when generating for MIPS16 and the outgoing argument area is more...

* config/mips/mips.c (mips_expand_prologue): Handle case when
generating for MIPS16 and the outgoing argument area is more than
SMALL_OPERAND. Use the frame pointer as temporary to generate the
add instruction.

From-SVN: r103519

gcc/ChangeLog

+2005-08-26  David Ung  <davidu@mips.com>
+
+	* config/mips/mips.c (mips_expand_prologue): Handle case when
+	generating for MIPS16 and the outgoing argument area is more than
+	SMALL_OPERAND. Use the frame pointer as temporary to generate the
+	add instruction.
+
 2005-08-26  Paul Woegerer  <paul.woegerer@nsc.com>
 
 	* config/crx/crx.md: Make doloop_end pattern usage controllable

gcc/config/mips/mips.c

@@ -6736,10 +6736,23 @@ mips_expand_prologue (void)
       if (TARGET_MIPS16 && cfun->machine->frame.args_size != 0)
 	{
 	  rtx offset = GEN_INT (cfun->machine->frame.args_size);
+	  if (SMALL_OPERAND (cfun->machine->frame.args_size))
 	    RTX_FRAME_RELATED_P 
 	      (emit_insn (gen_add3_insn (hard_frame_pointer_rtx,
 					 stack_pointer_rtx,
 					 offset))) = 1;
+	  else
+	    {
+	      emit_move_insn (MIPS_PROLOGUE_TEMP (Pmode), offset);
+	      emit_move_insn (hard_frame_pointer_rtx, stack_pointer_rtx);
+	      emit_insn (gen_add3_insn (hard_frame_pointer_rtx,
+					hard_frame_pointer_rtx,
+					MIPS_PROLOGUE_TEMP (Pmode)));
+	      mips_set_frame_expr
+		(gen_rtx_SET (VOIDmode, hard_frame_pointer_rtx,
+			      plus_constant (stack_pointer_rtx, 
+					     cfun->machine->frame.args_size)));
+	    }
 	}
       else
 	RTX_FRAME_RELATED_P (emit_move_insn (hard_frame_pointer_rtx,