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authorrsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 12 Jan 2007 09:36:17 +0000 (09:36 +0000)
committerrsandifo <rsandifo@138bc75d-0d04-0410-961f-82ee72b054a4>
Fri, 12 Jan 2007 09:36:17 +0000 (09:36 +0000)
200x-xx-xx  Nathan Sidwell  <nathan@codesourcery.com>
    Richard Sandiford  <richard@codesourcery.com>

* doc/invoke.texi: Document the macros that are defined by
m68k's -mtune and -mhard-float options.
* config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
(m68k_cpp_cpu_family): Likewise.
* config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
of __ucfv*__ macros.  Define __mcffpu__ if generating code for
ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
* config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
(m68k_cpp_cpu_family): Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120716 138bc75d-0d04-0410-961f-82ee72b054a4

gcc/ChangeLog
gcc/config/m68k/m68k-protos.h
gcc/config/m68k/m68k.c
gcc/config/m68k/m68k.h
gcc/doc/invoke.texi

index 910bfb9..837f085 100644 (file)
@@ -1,3 +1,16 @@
+2007-01-12  Nathan Sidwell  <nathan@codesourcery.com>
+           Richard Sandiford  <richard@codesourcery.com>
+
+       * doc/invoke.texi: Document the macros that are defined by
+       m68k's -mtune and -mhard-float options.
+       * config/m68k/m68k-protos.h (m68k_cpp_cpu_ident) Declare.
+       (m68k_cpp_cpu_family): Likewise.
+       * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Add a full set
+       of __ucfv*__ macros.  Define __mcffpu__ if generating code for
+       ColdFire FPUs.  Define __mcf_cpu_* and __mcf_family_* macros.
+       * config/m68k/m68k.c (m68k_cpp_cpu_ident): New function.
+       (m68k_cpp_cpu_family): Likewise.
+
 2007-01-12  Richard Sandiford  <richard@codesourcery.com>
 
        * config/m68k/m68k.h (TARGET_CPU_CPP_BUILTINS): Treat all mc68*
index 531c695..75f6f25 100644 (file)
@@ -61,5 +61,7 @@ extern bool m68k_regno_mode_ok (int, enum machine_mode);
 extern int flags_in_68881 (void);
 extern bool use_return_insn (void);
 extern void override_options (void);
+extern const char *m68k_cpp_cpu_ident (const char *);
+extern const char *m68k_cpp_cpu_family (const char *);
 extern void init_68881_table (void);
 extern int m68k_hard_regno_rename_ok(unsigned int, unsigned int);
index 2941757..edf8a7e 100644 (file)
@@ -540,6 +540,30 @@ override_options (void)
 
   SUBTARGET_OVERRIDE_OPTIONS;
 }
+
+/* Generate a macro of the form __mPREFIX_cpu_NAME, where PREFIX is the
+   given argument and NAME is the argument passed to -mcpu.  Return NULL
+   if -mcpu was not passed.  */
+
+const char *
+m68k_cpp_cpu_ident (const char *prefix)
+{
+  if (!m68k_cpu_entry)
+    return NULL;
+  return concat ("__m", prefix, "_cpu_", m68k_cpu_entry->name, NULL);
+}
+
+/* Generate a macro of the form __mPREFIX_family_NAME, where PREFIX is the
+   given argument and NAME is the name of the representative device for
+   the -mcpu argument's family.  Return NULL if -mcpu was not passed.  */
+
+const char *
+m68k_cpp_cpu_family (const char *prefix)
+{
+  if (!m68k_cpu_entry)
+    return NULL;
+  return concat ("__m", prefix, "_family_", m68k_cpu_entry->family, NULL);
+}
 \f
 /* Return nonzero if FUNC is an interrupt function as specified by the
    "interrupt_handler" attribute.  */
index 030dc4d..17105b5 100644 (file)
@@ -107,6 +107,26 @@ Boston, MA 02110-1301, USA.  */
          builtin_define_std ("mc68020");                               \
          break;                                                        \
                                                                        \
+       case ucfv2:                                                     \
+         builtin_define ("__mcfv2__");                                 \
+         break;                                                        \
+                                                                       \
+       case ucfv3:                                                     \
+         builtin_define ("__mcfv3__");                                 \
+         break;                                                        \
+                                                                       \
+       case ucfv4:                                                     \
+         builtin_define ("__mcfv4__");                                 \
+         break;                                                        \
+                                                                       \
+       case ucfv4e:                                                    \
+         builtin_define ("__mcfv4e__");                                \
+         break;                                                        \
+                                                                       \
+       case ucfv5:                                                     \
+         builtin_define ("__mcfv5__");                                 \
+         break;                                                        \
+                                                                       \
        default:                                                        \
          break;                                                        \
        }                                                               \
@@ -116,7 +136,16 @@ Boston, MA 02110-1301, USA.  */
                                                                        \
       if (TARGET_COLDFIRE)                                             \
        {                                                               \
+         const char *tmp;                                              \
+                                                                       \
+         tmp = m68k_cpp_cpu_ident ("cf");                              \
+         if (tmp)                                                      \
+           builtin_define (tmp);                                       \
+         tmp = m68k_cpp_cpu_family ("cf");                             \
+         if (tmp)                                                      \
+           builtin_define (tmp);                                       \
          builtin_define ("__mcoldfire__");                             \
+                                                                       \
          if (TARGET_ISAC)                                              \
            builtin_define ("__mcfisac__");                             \
          else if (TARGET_ISAB)                                         \
@@ -152,10 +181,11 @@ Boston, MA 02110-1301, USA.  */
                  break;                                                \
                }                                                       \
            }                                                           \
-         if (m68k_tune == ucfv4e)                                      \
-           builtin_define ("__mcfv4e__");                              \
        }                                                               \
                                                                        \
+      if (TARGET_COLDFIRE_FPU)                                         \
+       builtin_define ("__mcffpu__");                                  \
+                                                                       \
       if (TARGET_CF_HWDIV)                                             \
        builtin_define ("__mcfhwdiv__");                                \
                                                                        \
index 145c322..a3b9c90 100644 (file)
@@ -10328,6 +10328,10 @@ below, which also classifies the CPUs into families:
 @var{arch} is compatible with @var{cpu}.  Other combinations of
 @option{-mcpu} and @option{-march} are rejected.
 
+gcc defines the macro @samp{__mcf_cpu_@var{cpu}} when ColdFire target
+@var{cpu} is selected.  It also defines @samp{__mcf_family_@var{family}},
+where the value of @var{family} is given by the table above.
+
 @item -mtune=@var{tune}
 @opindex mtune
 Tune the code for a particular microarchitecture, within the
@@ -10343,6 +10347,17 @@ to run relatively well on 68020, 68030 and 68040 targets.
 as well.  These two options select the same tuning decisions as
 @option{-m68020-40} and @option{-m68020-60} respectively.
 
+gcc defines the macros @samp{__mc@var{arch}} and @samp{__mc@var{arch}__}
+when tuning for 680x0 architecture @var{arch}.  It also defines
+@samp{mc@var{arch}} unless either @option{-ansi} or a non-GNU @option{-std}
+option is used.  If gcc is tuning for a range of architectures,
+as selected by @option{-mtune=68020-40} or @option{-mtune=68020-60},
+it defines the macros for every architecture in the range.
+
+gcc also defines the macro @samp{__m@var{uarch}__} when tuning for
+ColdFire microarchitecture @var{uarch}, where @var{uarch} is one
+of the arguments given above.
+
 @item -m68000
 @itemx -mc68000
 @opindex m68000
@@ -10465,7 +10480,9 @@ The option is equivalent to @option{-march=68020} @option{-mtune=68020-60}.
 @opindex mhard-float
 @opindex m68881
 Generate floating-point instructions.  This is the default for 68020
-and above, and for ColdFire devices that have an FPU.
+and above, and for ColdFire devices that have an FPU.  It defines the
+macro @samp{__HAVE_68881__} on M680x0 targets and @samp{__mcffpu__}
+on ColdFire targets.
 
 @item -msoft-float
 @opindex msoft-float