* real.h: Define REAL_VALUE_TYPE_SIZE as 96 or 160, as

	appropriate.  Document need for extended precision even when
	MAX_LONG_DOUBLE_TYPE_SIZE is smaller.  Define REAL_WIDTH here,
	based on REAL_VALUE_TYPE_SIZE.  Use REAL_WIDTH to size
	REAL_VALUE_TYPE.  Define CONST_DOUBLE_FORMAT here.  Use #error
	instead of relying on later syntax error when REAL_WIDTH > 5.
	* real.c: Define NE based only on whether or not we have a
	full 128-bit extended type (not INTEL_EXTENDED_IEEE_FORMAT).
	Require sizeof(REAL_VALUE_TYPE) == 2*NE.  Unconditionally
	define GET_REAL and PUT_REAL as simple memcpy operations; no
	need to byteswap or round.
	Use #error instead of #ifdef-ing out the entire file, for
	prompt error detection.

	* rtl.c, gengenrtl.c: No need to calculate CONST_DOUBLE_FORMAT here.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@52502 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 0 insertions, 63 deletions

diff --git a/gcc/gengenrtl.c b/gcc/gengenrtl.c
index f35402940ab..5795d32edb0 100644
--- a/gcc/gengenrtl.c
+++ b/gcc/gengenrtl.c
@@ -28,69 +28,6 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 
 #include "real.h"
 
-/* Calculate the format for CONST_DOUBLE.  This depends on the relative
-   widths of HOST_WIDE_INT and REAL_VALUE_TYPE.
-
-   We need to go out to e0wwwww, since real.c assumes 16 bits per element
-   in REAL_VALUE_TYPE.
-
-   This is duplicated in rtl.c.
-
-   A number of places assume that there are always at least two 'w'
-   slots in a CONST_DOUBLE, so we provide them even if one would suffice.  */
-
-#if MAX_LONG_DOUBLE_TYPE_SIZE == 96
-# define REAL_WIDTH	\
-     (11*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
-#else
-# if MAX_LONG_DOUBLE_TYPE_SIZE == 128
-#  define REAL_WIDTH	\
-     (19*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
-# else
-#  if HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
-#   define REAL_WIDTH	\
-      (7*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
-#  endif
-# endif
-#endif
-
-#ifndef REAL_WIDTH
-# if HOST_BITS_PER_WIDE_INT*2 >= MAX_LONG_DOUBLE_TYPE_SIZE
-#  define REAL_WIDTH	2
-# else
-#  if HOST_BITS_PER_WIDE_INT*3 >= MAX_LONG_DOUBLE_TYPE_SIZE
-#   define REAL_WIDTH	3
-#  else
-#   if HOST_BITS_PER_WIDE_INT*4 >= MAX_LONG_DOUBLE_TYPE_SIZE
-#    define REAL_WIDTH	4
-#   endif
-#  endif
-# endif
-#endif /* REAL_WIDTH */
-
-#if REAL_WIDTH == 1
-# define CONST_DOUBLE_FORMAT	"0ww"
-#else
-# if REAL_WIDTH == 2
-#  define CONST_DOUBLE_FORMAT	"0ww"
-# else
-#  if REAL_WIDTH == 3
-#   define CONST_DOUBLE_FORMAT	"0www"
-#  else
-#   if REAL_WIDTH == 4
-#    define CONST_DOUBLE_FORMAT	"0wwww"
-#   else
-#    if REAL_WIDTH == 5
-#     define CONST_DOUBLE_FORMAT	"0wwwww"
-#    else
-#     define CONST_DOUBLE_FORMAT /* nothing - will cause syntax error */
-#    endif
-#   endif
-#  endif
-# endif
-#endif
-
-
 struct rtx_definition 
 {
   const char *const enumname, *const name, *const format;