config.gcc, linux.h: Implement with-cpu for m68k-linux.

	* config.gcc, config/m68k/linux.h: Implement with-cpu for m68k-linux.
	* longlong.h: Make code 68060 clean when compiling for m68060.

From-SVN: r79524

gcc/ChangeLog

+2004-03-16 Richard Zidlicky <rz@linux-m68k.org>
+
+	* config.gcc, config/m68k/linux.h: Implement with-cpu for m68k-linux.
+	* longlong.h: Make code 68060 clean when compiling for m68060.
+
 2004-03-16   Richard Zidlicky  <rz@linux-m68k.org>
 
 	* config/m68k/m68k.md: Fix constraints for bitfield instructions.

gcc/config.gcc

@@ -2302,6 +2302,20 @@ fi
 		esac
 		;;
 
+	m68k*-linux*)
+		supported_defaults="cpu"
+		case "$with_cpu" in
+		"" | "m68020" | "m68030" | "m68040" | "m68060" | "m68020-40" | "m68020-60")
+			# OK
+			;;
+		*)
+			echo "Unknown CPU used in --with-cpu=$with_cpu, known values:"  1>&2
+			echo "m68020 m68030 m68040 m68060 m68020-40 m68020-60" 1>&2
+			exit 1
+			;;
+		esac
+		;;
+
 	hppa*-*-* | parisc*-*-*)
 		supported_defaults="arch schedule"
 
@@ -2494,6 +2508,37 @@ fi
 		esac
 		;;
 
+	m68k*-linux*)
+		case "x$with_cpu" in
+		x)
+			# The most generic
+			target_cpu_default2="(MASK_68020|MASK_68881|MASK_BITFIELD)"
+			;;
+		xm68020)
+			target_cpu_default2="(MASK_68020|MASK_68881|MASK_BITFIELD)"
+			;;
+		xm68030)
+			target_cpu_default2="(MASK_68030|MASK_68020|MASK_68881|MASK_BITFIELD)"
+			;;
+		xm68040)
+			target_cpu_default2="(MASK_68040|MASK_68040_ONLY|MASK_68020|MASK_68881|MASK_BITFIELD)"
+			;;
+		xm68060)
+			target_cpu_default2="(MASK_68060|MASK_68040_ONLY|MASK_68020|MASK_68881|MASK_BITFIELD)"
+			;;
+		xm68020-40)
+			target_cpu_default2="(MASK_BITFIELD|MASK_68881|MASK_68020|MASK_68040)"
+			;;
+		xm68020-60)
+			target_cpu_default2="(MASK_BITFIELD|MASK_68881|MASK_68020|MASK_68040|MASK_68060)"
+			;;
+		*)
+			echo "Unknown CPU used in --with-cpu=$with_cpu"  1>&2
+			exit 1
+			;;
+		esac
+		;;
+
 	hppa*-*-* | parisc*-*-*)
 		if test x$gas = xyes
 		then

gcc/config/m68k/linux.h

@@ -23,8 +23,14 @@ Boston, MA 02111-1307, USA.  */
 #undef TARGET_VERSION
 #define TARGET_VERSION fprintf (stderr, " (68k GNU/Linux with ELF)");
 
-/* 68020 with 68881 */
+/* Default target comes from config.gcc.  */
+
+#undef TARGET_DEFAULT
+#ifdef TARGET_CPU_DEFAULT
+#define TARGET_DEFAULT TARGET_CPU_DEFAULT
+#else
 #define TARGET_DEFAULT (MASK_BITFIELD|MASK_68881|MASK_68020)
+#endif
 
 /* for 68k machines this only needs to be TRUE for the 68000 */
 

gcc/longlong.h

@@ -415,7 +415,7 @@ UDItype __umulsidi3 (USItype, USItype);
 	     "g" ((USItype) (bl)))
 
 /* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r.  */
-#if defined (__mc68020__)
+#if (defined (__mc68020__) && !defined (__mc68060__))
 #define umul_ppmm(w1, w0, u, v) \
   __asm__ ("mulu%.l %3,%1:%0"						\
 	   : "=d" ((USItype) (w0)),					\
@@ -439,8 +439,8 @@ UDItype __umulsidi3 (USItype, USItype);
 	     "1" ((USItype) (n1)),					\
 	     "dmi" ((USItype) (d)))
 
-#else /* not mc68020 */
-#if defined(__mcoldfire__)
+#elif defined (__mcoldfire__) /* not mc68020 */
+
 #define umul_ppmm(xh, xl, a, b) \
   __asm__ ("| Inlined umul_ppmm\n"					\
 	   "	move%.l	%2,%/d0\n"					\
@@ -511,12 +511,12 @@ UDItype __umulsidi3 (USItype, USItype);
 	   : "d0", "d1", "d2", "d3", "d4")
 #define UMUL_TIME 100
 #define UDIV_TIME 400
-#endif /* not ColdFire */
+
 #endif /* not mc68020 */
 
 /* The '020, '030, '040 and '060 have bitfield insns.
    cpu32 disguises as a 68020, but lacks them.  */
-#if defined (__mc68020__) && !defined(__mcpu32__)
+#if defined (__mc68020__) && !defined (__mcpu32__)
 #define count_leading_zeros(count, x) \
   __asm__ ("bfffo %1{%b2:%b2},%0"					\
 	   : "=d" ((USItype) (count))					\