real.c (struct real_format): Move to real.h.

	* real.c (struct real_format): Move to real.h.
	(real_format_for_mode): Rename from fmt_for_mode; update all users;
	initialize with ieee defaults.
	(real_to_target_fmt, real_from_target_fmt): New.
	(ieee_single_format, ieee_double_format, ieee_extended_motorola_format,
	ieee_extended_intel_96_format, ieee_extended_intel_128_format,
	ieee_quad_format, i370_single_format, i370_double_format,
	c4x_single_format, c4x_extended_format): Rename from s/_format//.
	(ieee_quad_format): Fix emin.
	(format_for_size, init_real_once): Remove.
	* real.h (struct real_format): Move from real.c.
	(real_format_for_mode): Declare.
	(real_to_target_fmt, real_from_target_fmt): Declare.
	(ieee_single_format, ieee_double_format, ieee_extended_motorola_format,
	ieee_extended_intel_96_format, ieee_extended_intel_128_format,
	ieee_quad_format, vax_f_format, vax_d_format, vax_g_format,
	i370_single_format, i370_double_format, c4x_single_format,
	c4x_extended_format): Declare.
	* toplev.c (do_compile): Don't call init_real_once.

	* defaults.h (INTEL_EXTENDED_IEEE_FORMAT): Remove.
	* doc/tm.texi (INTEL_EXTENDED_IEEE_FORMAT): Remove.

	* config/alpha/alpha.h (TARGET_FLOAT_FORMAT): Define.
	* config/alpha/osf5.h (LONG_DOUBLE_TYPE_SIZE): 64, if vax mode.
	* config/alpha/alpha.c (override_options): Set real_format_for_mode
	for VAX, if enabled.

	* config/c4x/c4x.c (c4x_override_options): Set real_format_for_mode
	for C4X.

	* config/i370/i370.h (OVERRIDE_OPTIONS): New.
	* config/i370/i370.c (override_options): New.
	* config/i370/i370-protos.h: Update.

	* config/i386/i386.c (override_options): Set real_format_for_mode
	for Intel 80-bit extended.
	* config/i386/i386.h (INTEL_EXTENDED_IEEE_FORMAT): Remove.

	* config/i960/i960.h (LONG_DOUBLE_TYPE_SIZE): Mind -mlong-double-64.
	(OVERRIDE_OPTIONS): Move code...
	* config/i960/i960.c (i960_initialize): ... here.  Set
	real_format_for_mode for Intel 80-bit extended.

	* config/ia64/ia64.c (ia64_override_options): Set real_format_for_mode
	for Intel 80-bit extended, if enabled.

	* config/m68k/m68k.c (override_options): Set real_format_for_mode
        for Motorola 96-bit extended.

	* config/vax/vax.h (OVERRIDE_OPTIONS): New.
	* config/vax/vax.c (override_options): New.
	* config/vax/vax-protos.h: Update.

From-SVN: r57388

2 files changed, 42 insertions, 43 deletions

diff --git a/gcc/config/i960/i960.c b/gcc/config/i960/i960.c
index 7ebbb9e..7dbe852 100644
--- a/gcc/config/i960/i960.c
+++ b/gcc/config/i960/i960.c
@@ -100,11 +100,47 @@ static int ret_label = 0;
 
 struct gcc_target targetm = TARGET_INITIALIZER;
 
-/* Initialize variables before compiling any files.  */
+/* Override conflicting target switch options.
+   Doesn't actually detect if more than one -mARCH option is given, but
+   does handle the case of two blatantly conflicting -mARCH options.
+
+   Also initialize variables before compiling any files.  */
 
 void
 i960_initialize ()
 {
+  if (TARGET_K_SERIES && TARGET_C_SERIES)
+    {
+      warning ("conflicting architectures defined - using C series");
+      target_flags &= ~TARGET_FLAG_K_SERIES;
+    }
+  if (TARGET_K_SERIES && TARGET_MC)
+    {
+      warning ("conflicting architectures defined - using K series");
+      target_flags &= ~TARGET_FLAG_MC;
+    }
+  if (TARGET_C_SERIES && TARGET_MC)
+    {
+      warning ("conflicting architectures defined - using C series");
+      target_flags &= ~TARGET_FLAG_MC;
+    }
+  if (TARGET_IC_COMPAT3_0)
+    {
+      flag_short_enums = 1;
+      flag_signed_char = 1;
+      target_flags |= TARGET_FLAG_CLEAN_LINKAGE;
+      if (TARGET_IC_COMPAT2_0)
+	{
+	  warning ("iC2.0 and iC3.0 are incompatible - using iC3.0");
+	  target_flags &= ~TARGET_FLAG_IC_COMPAT2_0;
+	}
+    }
+  if (TARGET_IC_COMPAT2_0)
+    {
+      flag_signed_char = 1;
+      target_flags |= TARGET_FLAG_CLEAN_LINKAGE;
+    }
+
   if (TARGET_IC_COMPAT2_0)
     {
       i960_maxbitalignment = 8;
@@ -115,6 +151,9 @@ i960_initialize ()
       i960_maxbitalignment = 128;
       i960_last_maxbitalignment = 8;
     }
+
+  /* Tell the compiler which flavor of XFmode we're using.  */
+  real_format_for_mode[XFmode - QFmode] = &ieee_extended_intel_96_format;
 }
 
 /* Return true if OP can be used as the source of an fp move insn.  */
diff --git a/gcc/config/i960/i960.h b/gcc/config/i960/i960.h
index 37c9afb..a669cf4 100644
--- a/gcc/config/i960/i960.h
+++ b/gcc/config/i960/i960.h
@@ -335,44 +335,7 @@ extern int target_flags;
 /* Override conflicting target switch options.
    Doesn't actually detect if more than one -mARCH option is given, but
    does handle the case of two blatantly conflicting -mARCH options.  */
-#define OVERRIDE_OPTIONS					\
-{								\
-  if (TARGET_K_SERIES && TARGET_C_SERIES)			\
-    {								\
-      warning ("conflicting architectures defined - using C series"); \
-      target_flags &= ~TARGET_FLAG_K_SERIES;			\
-    }								\
-  if (TARGET_K_SERIES && TARGET_MC)				\
-    {								\
-      warning ("conflicting architectures defined - using K series"); \
-      target_flags &= ~TARGET_FLAG_MC;				\
-    }								\
-  if (TARGET_C_SERIES && TARGET_MC)				\
-    {								\
-      warning ("conflicting architectures defined - using C series");\
-      target_flags &= ~TARGET_FLAG_MC;				\
-    }								\
-  if (TARGET_IC_COMPAT3_0)					\
-    {								\
-      flag_short_enums = 1;					\
-      flag_signed_char = 1;					\
-      target_flags |= TARGET_FLAG_CLEAN_LINKAGE;		\
-      if (TARGET_IC_COMPAT2_0)					\
-	{							\
-	  warning ("iC2.0 and iC3.0 are incompatible - using iC3.0"); \
-	  target_flags &= ~TARGET_FLAG_IC_COMPAT2_0;		\
-	}							\
-    }								\
-  if (TARGET_IC_COMPAT2_0)					\
-    {								\
-      flag_signed_char = 1;					\
-      target_flags |= TARGET_FLAG_CLEAN_LINKAGE;		\
-    }								\
-  /* ??? See the LONG_DOUBLE_TYPE_SIZE definition below.  */	\
-  if (TARGET_LONG_DOUBLE_64)					\
-    warning ("the -mlong-double-64 option does not work yet");\
-  i960_initialize ();						\
-}
+#define OVERRIDE_OPTIONS  i960_initialize ()
 
 /* Don't enable anything by default.  The user is expected to supply a -mARCH
    option.  If none is given, then -mka is added by CC1_SPEC.  */
@@ -402,10 +365,7 @@ extern int target_flags;
 /* Width in bits of a long double.  Define to 96, and let
    ROUND_TYPE_ALIGN adjust the alignment for speed.  */
 #define	LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_64 ? 64 : 96)
-
-/* ??? This must be a constant, because real.c and real.h test it with #if.  */
-#undef LONG_DOUBLE_TYPE_SIZE
-#define LONG_DOUBLE_TYPE_SIZE 96
+#define MAX_LONG_DOUBLE_TYPE_SIZE 96
 
 /* Define this to set long double type size to use in libgcc2.c, which can
    not depend on target_flags.  */