* elf32-h8300 (h8_relax_section): Add new relaxation of mov

	@(disp:32,ERx) to mov @(disp:16,ERx).
	(R_H8_DISP32A16): New reloc.
	Comments added and corrected.
	* reloc.c (BFD_RELOC_H8_DISP32A16): New reloc.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.

	* ld.texinfo (H8/300): Add description of relaxation of
	mov @(disp:32,ERx) to mov @(disp:16,ERx).

	* ld-h8300/h8300.exp: Add new relax-7 test on ELF.
	* ld-h8300/relax-2.s: Add other direction and .w/.l variants of
	mov insns.
	* ld-h8300/relax-2.d: Update expected disassembly.
	* ld-h8300/relax-7a.s: New: tests for mov @(disp:32,ERx) -> mov
	@(disp:16,ERx).
	* ld-h8300/relax-7b.s: New: Likewise.
	* ld-h8300/relax-7.d: New: expected disassembly.

	* config/tc-h8300.c (do_a_fix_imm): Add relaxation of mov
	@(disp:32,ERx) to mov @(disp:16,ERx) insns by new reloc
	R_H8_DISP32A16.
	* config/tc-h8300.h: Remove duplicated defines.

1 files changed, 24 insertions, 9 deletions

diff --git a/gas/config/tc-h8300.c b/gas/config/tc-h8300.c
index bbf8c0e..032831b 100644
--- a/gas/config/tc-h8300.c
+++ b/gas/config/tc-h8300.c
@@ -1,7 +1,5 @@
 /* tc-h8300.c -- Assemble code for the Renesas H8/300
-   Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000,
-   2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012
-   Free Software Foundation, Inc.
+   Copyright 1991-2013 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -1396,7 +1394,12 @@ do_a_fix_imm (int offset, int nibble, struct h8_op *operand, int relaxmode, cons
 	  bytes[3] |= operand->exp.X_add_number >> 0;
 	  if (relaxmode != 0)
 	    {
-	      idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1;
+#ifdef OBJ_ELF
+	      if ((operand->mode & MODE) == DISP && relaxmode == 1)
+		idx = BFD_RELOC_H8_DISP32A16;
+	      else
+#endif
+		idx = (relaxmode == 2) ? R_MOV24B1 : R_MOVL1;
 	      fix_new_exp (frag_now, offset, 4, &operand->exp, 0, idx);
 	    }
 	  break;
@@ -1410,6 +1413,11 @@ do_a_fix_imm (int offset, int nibble, struct h8_op *operand, int relaxmode, cons
 	case L_32:
 	  size = 4;
 	  where = (operand->mode & SIZE) == L_24 ? -1 : 0;
+#ifdef OBJ_ELF
+	  if ((operand->mode & MODE) == DISP && relaxmode == 1)
+	    idx = BFD_RELOC_H8_DISP32A16;
+	  else
+#endif
 	  if (relaxmode == 2)
 	    idx = R_MOV24B1;
 	  else if (relaxmode == 1)
@@ -1616,7 +1624,7 @@ build_bytes (const struct h8_instruction *this_try, struct h8_op *operand)
   for (i = 0; i < this_try->length; i++)
     output[i] = (asnibbles[i * 2] << 4) | asnibbles[i * 2 + 1];
 
-  /* Note if this is a movb or a bit manipulation instruction
+  /* Note if this is a mov.b or a bit manipulation instruction
      there is a special relaxation which only applies.  */
   if (   this_try->opcode->how == O (O_MOV,   SB)
       || this_try->opcode->how == O (O_BCLR,  SB)
@@ -1642,10 +1650,17 @@ build_bytes (const struct h8_instruction *this_try, struct h8_op *operand)
       int x_mode = x & MODE;
 
       if (x_mode == IMM || x_mode == DISP)
-	do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2,
-		      op_at[i] & 1, operand + i, (x & MEMRELAX) != 0,
-		      this_try);
-
+	{
+#ifndef OBJ_ELF
+	  /* Remove MEMRELAX flag added in h8300.h on mov with
+	     addressing mode "register indirect with displacement".  */
+	  if (x_mode == DISP)
+	    x &= ~MEMRELAX;
+#endif
+	  do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2,
+			op_at[i] & 1, operand + i, (x & MEMRELAX) != 0,
+			this_try);
+	}
       else if (x_mode == ABS)
 	do_a_fix_imm (output - frag_now->fr_literal + op_at[i] / 2,
 		      op_at[i] & 1, operand + i,