m68k.md: Add Coldfire FPU support.

2006-01-22  Paul Brook  <paul@codesourcery.com>
	Peter Barada  <peter@the-baradas.com>

	* config/m68k/m68k.md: Add Coldfire FPU support.
	Define FP mode macro and associated attributes.
	Use it for float mode patterns.
	* config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
	(LIBCALL_VALUE): Use m68k_libcall_value.
	* config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
	(m68k_function_value): Ditto.
	(emit_move_sequence): Ditto.
	* config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
	* config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
	* config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
	(MULTILIB_EXCEPTIONS): Ditto.
	* config/m68k/m68k.opt: Add mcfv4e.
	* config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
	(m68k_compute_frame_layout): Include space for ColdFire FPU regs.
	(m68k_output_function_prologue): Save ColdFire FPU registers.
	(m68k_output_function_epilogue): Restore ColdFire FPU registers.
	(force_mode, fp_reg_operand, emit_move_sequence): New functions.
	(m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
	ColdFire FPU registers.
	(m68k_libcall_value, m68k_function_value): New functions.
	* config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
	(LIBCALL_VALUE): Use m68k_libcall_value.
	* config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
	(MASK_COLDFIRE): Add MASK_CFV4E.
	(TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
	(MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
	(REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
	(GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
	(GO_IF_LEGITIMATE_ADDRESS): Use it.
	(LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
	* doc/invoke.tex: Document -mcfv4e on m68k.


Co-Authored-By: Peter Barada <peter@the-baradas.com>

From-SVN: r110091

gcc/ChangeLog

+2006-01-22  Paul Brook  <paul@codesourcery.com>
+	Peter Barada  <peter@the-baradas.com>
+
+	* config/m68k/m68k.md: Add Coldfire FPU support.
+	Define FP mode macro and associated attributes.
+	Use it for float mode patterns.
+	* config/m68k/linux.h (FUNCTION_VALUE): Use m68k_function_value.
+	(LIBCALL_VALUE): Use m68k_libcall_value.
+	* config/m68k/m68k-protos.h (m68k_libcall_value): Add prototype.
+	(m68k_function_value): Ditto.
+	(emit_move_sequence): Ditto.
+	* config/m68k/m68kemb.h (LIBCALL_VALUE): Use m68k_libcall_value.
+	* config/m68k/m68k-none.h (ASM_SPEC): Add mcfv4e.
+	* config/m68k/t-m68kelf (MULTILIB_OPTIONS): Add mcfv4e.
+	(MULTILIB_EXCEPTIONS): Ditto.
+	* config/m68k/m68k.opt: Add mcfv4e.
+	* config/m68k/m68k.c (m68k_handle_option): Handle OPT_mcfv4e.
+	(m68k_compute_frame_layout): Include space for ColdFire FPU regs.
+	(m68k_output_function_prologue): Save ColdFire FPU registers.
+	(m68k_output_function_epilogue): Restore ColdFire FPU registers.
+	(force_mode, fp_reg_operand, emit_move_sequence): New functions.
+	(m68k_regno_mode_ok): Don't allow types larget than 8 bytes in
+	ColdFire FPU registers.
+	(m68k_libcall_value, m68k_function_value): New functions.
+	* config/m68k/netbsd-elf.h (FUNCTION_VALUE): Use m68k_function_value.
+	(LIBCALL_VALUE): Use m68k_libcall_value.
+	* config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Define __mcfv4e__.
+	(MASK_COLDFIRE): Add MASK_CFV4E.
+	(TARGET_COLDFIRE_FPU, TARGET_HARD_FLOAT, TARGET_FP_REG_SIZE): New.
+	(MODES_TIEABLE_P): Use TARGET_HARD_FLOAT.
+	(REG_CLASS_FROM_LETTER, PREFERRED_RELOAD_CLASS): Ditto.
+	(GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS): Define.
+	(GO_IF_LEGITIMATE_ADDRESS): Use it.
+	(LEGITIMIZE_ADDRESS): Handle ColdFire FPU addresses.
+	* doc/invoke.tex: Document -mcfv4e on m68k.
+
 2006-01-22  Ranjit Mathew  <rmathew@gcc.gnu.org>
 
 	* doc/contribute.texi: Change CVS to SVN and update the corresponding

gcc/config/m68k/linux.h

 /* Definitions for Motorola 68k running Linux-based GNU systems with
    ELF format.
-   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004
+   Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2006
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -224,11 +224,7 @@ Boston, MA 02110-1301, USA.  */
 
 #undef FUNCTION_VALUE
 #define FUNCTION_VALUE(VALTYPE, FUNC)					\
-  (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881			\
-   ? gen_rtx_REG (TYPE_MODE (VALTYPE), 16)				\
-   : (POINTER_TYPE_P (VALTYPE)						\
-      ? gen_rtx_REG (TYPE_MODE (VALTYPE), 8)				\
-      : gen_rtx_REG (TYPE_MODE (VALTYPE), 0)))
+  m68k_function_value (VALTYPE, FUNC)
 
 /* For compatibility with the large body of existing code which does
    not always properly declare external functions returning pointer
@@ -251,10 +247,7 @@ do {									\
 
 #undef LIBCALL_VALUE
 #define LIBCALL_VALUE(MODE)						\
-  ((((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)		\
-    && TARGET_68881)							\
-   ? gen_rtx_REG ((MODE), 16)						\
-   : gen_rtx_REG ((MODE), 0))
+  m68k_libcall_value (MODE)
 
 /* For m68k SVR4, structures are returned using the reentrant
    technique.  */

gcc/config/m68k/m68k-none.h

 /* Definitions of target machine for GNU compiler.  "naked" 68020.
-   Copyright (C) 1994, 1996, 2003 Free Software Foundation, Inc.
+   Copyright (C) 1994, 1996, 2003, 2006 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -81,7 +81,7 @@ Unrecognized value in TARGET_CPU_DEFAULT.
 
 #undef ASM_SPEC
 #define ASM_SPEC "\
-%{m68851}%{mno-68851}%{m68881}%{mno-68881}%{msoft-float:-mno-68881} %{m68000}%{m68302}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}%{m68040}%{m68020-40:-mc68040} %{m68020-60:-mc68040} %{m68060}%{mcpu32}%{m68332}%{m5200}%{m5206e}%{m528x}%{m5307}%{m5407}%{!mc68000:%{!m68000:%{!m68302:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68020-60:%{!m68060:%{!mcpu32:%{!m68332:%{!m5200:%{!m5206e:%{!m528x:%{!m5307:%{!m5407:%(asm_cpu_default)}}}}}}}}}}}}}}}}}} \
+%{m68851}%{mno-68851}%{m68881}%{mno-68881}%{msoft-float:-mno-68881} %{m68000}%{m68302}%{mc68000}%{m68010}%{m68020}%{mc68020}%{m68030}%{m68040}%{m68020-40:-mc68040} %{m68020-60:-mc68040} %{m68060}%{mcpu32}%{m68332}%{m5200}%{m5206e}%{m528x}%{m5307}%{m5407}%{mcfv4e}%{!mc68000:%{!m68000:%{!m68302:%{!m68010:%{!mc68020:%{!m68020:%{!m68030:%{!m68040:%{!m68020-40:%{!m68020-60:%{!m68060:%{!mcpu32:%{!m68332:%{!m5200:%{!m5206e:%{!m528x:%{!m5307:%{!m5407:%{!mcfv4e:%(asm_cpu_default)}}}}}}}}}}}}}}}}}}} \
 %{fPIC:--pcrel} %{fpic:--pcrel} %{msep-data:--pcrel} %{mid-shared-library:--pcrel} \
 "
 

gcc/config/m68k/m68k-protos.h

 /* Definitions of target machine for GNU compiler.  Sun 68000/68020 version.
-   Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2000, 2002, 2004, 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -51,6 +51,9 @@ extern void print_operand (FILE *, rtx, int);
 extern void notice_update_cc (rtx, rtx);
 extern rtx legitimize_pic_address (rtx, enum machine_mode, rtx);
 extern int valid_dbcc_comparison_p_2 (rtx, enum machine_mode);
+extern rtx m68k_libcall_value (enum machine_mode);
+extern rtx m68k_function_value (tree, tree);
+extern int emit_move_sequence (rtx *, enum machine_mode, rtx);
 
 #endif /* RTX_CODE */
 

gcc/config/m68k/m68k.h

 /* Definitions of target machine for GCC for Motorola 680x0/ColdFire.
    Copyright (C) 1987, 1988, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -90,6 +90,10 @@ Boston, MA 02110-1301, USA.  */
 	  builtin_define ("__mcf5400__");	\
 	  builtin_define ("__mcf5407__");	\
 	}					\
+      if (TARGET_CFV4E)				\
+	{					\
+	  builtin_define ("__mcfv4e__");	\
+	}					\
       if (TARGET_CF_HWDIV)			\
 	builtin_define ("__mcfhwdiv__");	\
       builtin_assert ("cpu=m68k");		\
@@ -112,9 +116,17 @@ Boston, MA 02110-1301, USA.  */
 #define TARGET_CPU32	(TARGET_68020 && !TARGET_BITFIELD)
 
 /* Is the target a ColdFire?  */
-#define MASK_COLDFIRE	(MASK_5200 | MASK_528x | MASK_CFV3 | MASK_CFV4)
+#define MASK_COLDFIRE \
+  (MASK_5200 | MASK_528x | MASK_CFV3 | MASK_CFV4 | MASK_CFV4E)
 #define TARGET_COLDFIRE	((target_flags & MASK_COLDFIRE) != 0)
 
+#define TARGET_COLDFIRE_FPU	TARGET_CFV4E
+
+#define TARGET_HARD_FLOAT	(TARGET_68881 || TARGET_COLDFIRE_FPU)
+/* Size (in bytes) of FPU registers.  */
+#define TARGET_FP_REG_SIZE	(TARGET_COLDFIRE ? 8 : 12)
+
+
 #define OVERRIDE_OPTIONS   override_options()
 
 /* These are meant to be redefined in the host dependent files */
@@ -229,7 +241,7 @@ Boston, MA 02110-1301, USA.  */
 {								\
   int i;							\
   HARD_REG_SET x;						\
-  if (! TARGET_68881)						\
+  if (!TARGET_HARD_FLOAT)					\
     {								\
       COPY_HARD_REG_SET (x, reg_class_contents[(int)FP_REGS]);	\
       for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)		\
@@ -262,7 +274,7 @@ Boston, MA 02110-1301, USA.  */
   m68k_regno_mode_ok ((REGNO), (MODE))
 
 #define MODES_TIEABLE_P(MODE1, MODE2)			\
-  (! TARGET_68881					\
+  (! TARGET_HARD_FLOAT					\
    || ((GET_MODE_CLASS (MODE1) == MODE_FLOAT		\
 	|| GET_MODE_CLASS (MODE1) == MODE_COMPLEX_FLOAT)	\
        == (GET_MODE_CLASS (MODE2) == MODE_FLOAT		\
@@ -336,8 +348,8 @@ extern enum reg_class regno_reg_class[];
 #define REG_CLASS_FROM_LETTER(C) \
   ((C) == 'a' ? ADDR_REGS :			\
    ((C) == 'd' ? DATA_REGS :			\
-    ((C) == 'f' ? (TARGET_68881 ? FP_REGS :	\
-		   NO_REGS) :			\
+    ((C) == 'f' ? (TARGET_HARD_FLOAT ?		\
+		   FP_REGS : NO_REGS) :		\
      NO_REGS)))
 
 /* For the m68k, `I' is used for the range 1 to 8
@@ -407,7 +419,7 @@ extern enum reg_class regno_reg_class[];
    ? DATA_REGS					\
    : (GET_CODE (X) == CONST_DOUBLE					\
       && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT)			\
-   ? (TARGET_68881 && (CLASS == FP_REGS || CLASS == DATA_OR_FP_REGS)	\
+   ? (TARGET_HARD_FLOAT && (CLASS == FP_REGS || CLASS == DATA_OR_FP_REGS) \
       ? FP_REGS : NO_REGS)						\
    : (TARGET_PCREL				\
       && (GET_CODE (X) == SYMBOL_REF || GET_CODE (X) == CONST \
@@ -752,16 +764,34 @@ __transfer_from_trampoline ()					\
 	&& GET_CODE (XEXP (X, 1)) == CONST_INT		\
 	&& (INTVAL (XEXP (X, 1)) == 2			\
 	    || INTVAL (XEXP (X, 1)) == 4		\
-	    || (INTVAL (XEXP (X, 1)) == 8 && !TARGET_COLDFIRE))))
+	    || (INTVAL (XEXP (X, 1)) == 8		\
+		&& (TARGET_CFV4E || !TARGET_COLDFIRE)))))
+
+/* Coldfire FPU only accepts addressing modes 2-5 */
+#define GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS(MODE, X, ADDR)		\
+{ if (LEGITIMATE_BASE_REG_P (X)						\
+      || ((GET_CODE (X) == PRE_DEC || GET_CODE (X) == POST_INC)		\
+          && LEGITIMATE_BASE_REG_P (XEXP (X, 0)))			\
+      || ((GET_CODE (X) == PLUS) && LEGITIMATE_BASE_REG_P (XEXP (X, 0))	\
+          && (GET_CODE (XEXP (X, 1)) == CONST_INT)			\
+          && ((((unsigned) INTVAL (XEXP (X, 1)) + 0x8000) < 0x10000))))	\
+  goto ADDR;}
 
 /* If pic, we accept INDEX+LABEL, which is what do_tablejump makes.  */
 #define GO_IF_LEGITIMATE_ADDRESS(MODE, X, ADDR)				\
-{ GO_IF_NONINDEXED_ADDRESS (X, ADDR);					\
-  GO_IF_INDEXED_ADDRESS (X, ADDR);					\
-  if (flag_pic && MODE == CASE_VECTOR_MODE && GET_CODE (X) == PLUS	\
-      && LEGITIMATE_INDEX_P (XEXP (X, 0))				\
-      && GET_CODE (XEXP (X, 1)) == LABEL_REF)				\
-    goto ADDR; }
+{ if (TARGET_COLDFIRE_FPU && (GET_MODE_CLASS (MODE) == MODE_FLOAT))	\
+    {									\
+      GO_IF_COLDFIRE_FPU_LEGITIMATE_ADDRESS (MODE, X, ADDR);		\
+    }									\
+  else									\
+    {									\
+      GO_IF_NONINDEXED_ADDRESS (X, ADDR);				\
+      GO_IF_INDEXED_ADDRESS (X, ADDR);					\
+      if (flag_pic && MODE == CASE_VECTOR_MODE && GET_CODE (X) == PLUS	\
+	  && LEGITIMATE_INDEX_P (XEXP (X, 0))				\
+	  && GET_CODE (XEXP (X, 1)) == LABEL_REF)			\
+	goto ADDR;							\
+    }}
 
 /* Don't call memory_address_noforce for the address to fetch
    the switch offset.  This address is ok as it stands (see above),
@@ -783,7 +813,9 @@ __transfer_from_trampoline ()					\
 	{ COPY_ONCE (X); XEXP (X, 1) = force_operand (XEXP (X, 1), 0);}	\
       if (ch && GET_CODE (XEXP (X, 1)) == REG				\
 	  && GET_CODE (XEXP (X, 0)) == REG)				\
-	goto WIN;							\
+	{ if (TARGET_CFV4E && GET_MODE_CLASS (MODE) == MODE_FLOAT)	\
+	    { COPY_ONCE (X); X = force_operand (X, 0);}			\
+	  goto WIN; }							\
       if (ch) { GO_IF_LEGITIMATE_ADDRESS (MODE, X, WIN); }		\
       if (GET_CODE (XEXP (X, 0)) == REG					\
 	       || (GET_CODE (XEXP (X, 0)) == SIGN_EXTEND		\
@@ -794,6 +826,9 @@ __transfer_from_trampoline ()					\
 	  emit_move_insn (temp, val);					\
 	  COPY_ONCE (X);						\
 	  XEXP (X, 1) = temp;						\
+	  if (TARGET_COLDFIRE_FPU && GET_MODE_CLASS (MODE) == MODE_FLOAT \
+	      && GET_CODE (XEXP (X, 0)) == REG)				\
+	    X = force_operand (X, 0);					\
 	  goto WIN; }							\
       else if (GET_CODE (XEXP (X, 1)) == REG				\
 	       || (GET_CODE (XEXP (X, 1)) == SIGN_EXTEND		\
@@ -804,6 +839,9 @@ __transfer_from_trampoline ()					\
 	  emit_move_insn (temp, val);					\
 	  COPY_ONCE (X);						\
 	  XEXP (X, 0) = temp;						\
+	  if (TARGET_COLDFIRE_FPU && GET_MODE_CLASS (MODE) == MODE_FLOAT \
+	      && GET_CODE (XEXP (X, 1)) == REG)				\
+	    X = force_operand (X, 0);					\
 	  goto WIN; }}}
 
 /* On the 68000, only predecrement and postincrement address depend thus

gcc/config/m68k/m68k.opt

 ; Options for the Motorola 68000 port of the compiler.
 
-; Copyright (C) 2005 Free Software Foundation, Inc.
+; Copyright (C) 2005, 2006 Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
 ;
@@ -39,6 +39,10 @@ m5407
 Target RejectNegative Mask(CFV4)
 Generate code for a 5407
 
+mcfv4e
+Target RejectNegative Mask(CFV4E)
+Generate code for a ColdFire v4e
+
 m68000
 Target RejectNegative
 Generate code for a 68000

gcc/config/m68k/m68kemb.h

 /* Definitions of target machine for GNU compiler.  "embedded" 68XXX.
    This is meant to be included after m68k.h.
-   Copyright (C) 1994, 1995, 1998, 1999, 2004 Free Software Foundation, Inc.  */
+   Copyright (C) 1994, 1995, 1998, 1999, 2004, 2006
+   Free Software Foundation, Inc.  */
 
 /* Override the SVR4 ABI for this target.  */
 
@@ -21,19 +22,12 @@
    and unions in registers, which is slightly more efficient.  */
 #define DEFAULT_PCC_STRUCT_RETURN 0
 
-/* Return floating point values in a fp register.  This make fp code a
-   little bit faster.  It also makes -msoft-float code incompatible with
-   -m68881 code, so people have to be careful not to mix the two.  */
 #undef FUNCTION_VALUE
 #define FUNCTION_VALUE(VALTYPE,FUNC) LIBCALL_VALUE (TYPE_MODE (VALTYPE))
 
 #undef LIBCALL_VALUE
 #define LIBCALL_VALUE(MODE)					\
- gen_rtx_REG ((MODE),						\
-	      ((TARGET_68881					\
-		&& ((MODE) == SFmode || (MODE) == DFmode	\
-		    || (MODE) == XFmode))			\
-           ? 16 : 0))
+  m68k_libcall_value (MODE)
 
 #undef FUNCTION_VALUE_REGNO_P
 #define FUNCTION_VALUE_REGNO_P(N) ((N) == 0 || (TARGET_68881 && (N) == 16))

gcc/config/m68k/netbsd-elf.h

 /* Definitions of target machine for GNU compiler,
    for m68k (including m68010) NetBSD platforms using the
    ELF object format.
-   Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
    Contributed by Wasabi Systems. Inc.
 
    This file is derived from <m68k/m68kv4.h>, <m68k/m68kelf.h>,
@@ -307,11 +307,7 @@ while (0)
 
 #undef FUNCTION_VALUE
 #define FUNCTION_VALUE(VALTYPE, FUNC)					\
-  (TREE_CODE (VALTYPE) == REAL_TYPE && TARGET_68881			\
-   ? gen_rtx_REG (TYPE_MODE (VALTYPE), 16)				\
-   : (POINTER_TYPE_P (VALTYPE)						\
-      ? gen_rtx_REG (TYPE_MODE (VALTYPE), 8)				\
-      : gen_rtx_REG (TYPE_MODE (VALTYPE), 0)))
+  m68k_function_value (VALTYPE, FUNC)
 
 
 /* For compatibility with the large body of existing code which does
@@ -339,10 +335,7 @@ while (0)
 
 #undef LIBCALL_VALUE
 #define LIBCALL_VALUE(MODE)						\
-  ((((MODE) == SFmode || (MODE) == DFmode || (MODE) == XFmode)		\
-    && TARGET_68881)							\
-   ? gen_rtx_REG (MODE, 16)						\
-   : gen_rtx_REG (MODE, 0))
+  m68k_libcall_value (MODE)
 
 
 /* Boundary (in *bits*) on which stack pointer should be aligned.

gcc/config/m68k/t-m68kelf

@@ -12,14 +12,15 @@ xfgnulib.c: $(srcdir)/config/m68k/fpgnulib.c
 	echo '#define EXTFLOAT' > xfgnulib.c
 	cat $(srcdir)/config/m68k/fpgnulib.c >> xfgnulib.c
 
-MULTILIB_OPTIONS = m68000/m68020/m5200/m5206e/m528x/m5307/m5407/mcpu32/m68040/m68060 m68881/msoft-float
+MULTILIB_OPTIONS = m68000/m68020/m5200/m5206e/m528x/m5307/m5407/mcfv4e/mcpu32/m68040/m68060 m68881/msoft-float
 MULTILIB_DIRNAMES =
 MULTILIB_MATCHES = m68000=mc68000 m68000=m68302 mcpu32=m68332 m68020=mc68020 m5206e=m5272
 MULTILIB_EXCEPTIONS = m68000/msoft-float m5200/m68881 m5200/msoft-float \
 		    m5206e/m68881 m5206e/msoft-float m528x/m68881 m528x/msoft-float \
 		    m5307/m68881 m5307/msoft-float m5407/m68881 m5407/msoft-float \
 		    mcpu32/m68881 mcpu32/msoft-float m68040/m68881 m68040/msoft-float \
-		    m68060/m68881 m68060/msoft-float 
+		    m68060/m68881 m68060/msoft-float \
+		    mcfv4e/msoft-float mcfv4e/m68881
 LIBGCC = stmp-multilib
 INSTALL_LIBGCC = install-multilib
 

gcc/doc/invoke.texi

@@ -565,7 +565,8 @@ Objective-C and Objective-C++ Dialects}.
 
 @emph{M680x0 Options}
 @gccoptlist{-m68000  -m68020  -m68020-40  -m68020-60  -m68030  -m68040 @gol
--m68060  -mcpu32  -m5200  -m68881  -mbitfield  -mc68000  -mc68020   @gol
+-m68060  -mcpu32  -m5200  -mcfv4e -m68881  -mbitfield  @gol
+-mc68000  -mc68020   @gol
 -mnobitfield  -mrtd  -mshort  -msoft-float  -mpcrel @gol
 -malign-int  -mstrict-align  -msep-data  -mno-sep-data @gol
 -mshared-library-id=n  -mid-shared-library  -mno-id-shared-library}
@@ -9906,6 +9907,10 @@ when the compiler is configured for 520X-based systems.
 Use this option for microcontroller with a 5200 core, including
 the MCF5202, MCF5203, MCF5204 and MCF5202.
 
+@item -mcfv4e
+@opindex mcfv4e
+Generate output for a ColdFire V4e family cpu (e.g.@: 547x/548x).
+This includes use of hardware floating point instructions.
 
 @item -m68020-40
 @opindex m68020-40