libcpp/ChangeLog:

	* include/cpplib.h (CPP_N_WIDTH_MD, CPP_N_MD_W, CPP_N_MD_Q):
	Add new constants.
	* expr.c (interpret_float_suffix): Process 'w', 'W', 'q' and 'Q'
	suffixes.  Return CPP_N_MD_W for 'w' or 'W' suffixes and CPP_N_MD_Q
	for 'q' or 'Q' suffixes.

gcc/ChangeLog:

	* targhooks.h (default_mode_for_suffix): New function declaration.
	* targhooks.c (default_mode_for_suffix): New default target hook.
	* target.h (struct c): New structure in the targetm struct.
	(mode_for_suffix): New target hook as part of struct c.
	target-def.h (TARGET_C_MODE_FOR_SUFFIX): Define as
	default_mode_for_suffix.
	(TARGET_C): New define.
	* c-lex.c: Include "target.h".
	(interpret_float): Use targetm.c.mode_for_suffix to determine
	the mode for a given non-standard suffix.
	Makefile.in (c-lex.o): Depend on $(TARGET_H).

	* config/i386/i386.c (ix86_c_mode_for_suffix): New static function.
	(TARGET_C_MODE_FOR_SUFFIX): Define to ix86_c_mode_for_suffix.

	* doc/extend.texi (Floating Types): New node.  Document __float80 and
	__float128 types.  Document 'w', 'W', 'q' and 'Q' suffixes.

testsuite/ChangeLog:

	* gcc.dg/const-float80.c : New test.
	* gcc.dg/const-float128.c : New test.
	* gcc.dg/const-float80-ped.c : New test.
	* gcc.dg/const-float128-ped.c : New test.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126244 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 29 insertions, 3 deletions

diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 70a9f608a10..0c11a0fb581 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,3 +1,11 @@
+2007-07-03  Uros Bizjak  <ubizjak@gmail.com>
+
+	* include/cpplib.h (CPP_N_WIDTH_MD, CPP_N_MD_W, CPP_N_MD_Q):
+	Add new constants.
+	* expr.c (interpret_float_suffix): Process 'w', 'W', 'q' and 'Q'
+	suffixes.  Return CPP_N_MD_W for 'w' or 'W' suffixes and CPP_N_MD_Q
+	for 'q' or 'Q' suffixes.
+
 2007-06-17  Danny Smith  <dannysmith@users.sourceforge.net
 
 	* files.c (open_file): Correct typo.
diff --git a/libcpp/expr.c b/libcpp/expr.c
index 59de8ef9ec9..f20d50c3fdd 100644
--- a/libcpp/expr.c
+++ b/libcpp/expr.c
@@ -82,7 +82,9 @@ static void check_promotion (cpp_reader *, const struct op *);
 static unsigned int
 interpret_float_suffix (const uchar *s, size_t len)
 {
-  size_t f = 0, l = 0, i = 0, d = 0;
+  size_t f, l, w, q, i, d;
+
+  f = l = w = q = i = d = 0;
 
   while (len--)
     switch (s[len])
@@ -97,6 +99,16 @@ interpret_float_suffix (const uchar *s, size_t len)
 	  return 0;
 	l++;
 	break;
+      case 'w': case 'W':
+	if (d > 0)
+	  return 0;
+	w++;
+	break;
+      case 'q': case 'Q':
+	if (d > 0)
+	  return 0;
+	q++;
+	break;
       case 'i': case 'I':
       case 'j': case 'J': i++; break;
       case 'd': case 'D': d++; break;
@@ -104,7 +116,7 @@ interpret_float_suffix (const uchar *s, size_t len)
 	return 0;
       }
 
-  if (f + l > 1 || i > 1)
+  if (f + l + w + q > 1 || i > 1)
     return 0;
 
   /* Allow dd, df, dl suffixes for decimal float constants.  */
@@ -113,7 +125,9 @@ interpret_float_suffix (const uchar *s, size_t len)
 
   return ((i ? CPP_N_IMAGINARY : 0)
 	  | (f ? CPP_N_SMALL :
-	     l ? CPP_N_LARGE : CPP_N_MEDIUM)
+	     l ? CPP_N_LARGE :
+	     w ? CPP_N_MD_W :
+	     q ? CPP_N_MD_Q : CPP_N_MEDIUM)
 	  | (d ? CPP_N_DFLOAT : 0));
 }
 
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index 0edcf655c92..ee46c4f169f 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -744,6 +744,10 @@ struct cpp_num
 #define CPP_N_MEDIUM	0x0020	/* long, double.  */
 #define CPP_N_LARGE	0x0040	/* long long, long double.  */
 
+#define CPP_N_WIDTH_MD	0xF0000	/* machine defined.  */
+#define CPP_N_MD_W	0x10000
+#define CPP_N_MD_Q	0x20000
+
 #define CPP_N_RADIX	0x0F00
 #define CPP_N_DECIMAL	0x0100
 #define CPP_N_HEX	0x0200