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libgcc2.c: Change all conditionals testing LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96 to == 80.

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* libgcc2.c: Change all conditionals testing
	LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96 to == 80.
	* libgcc2.h: Likewise.
	* config/i386/i386.c (ix86_init_mmx_sse_builtins): Set
	TYPE_PRECISION of float80_type to 80.
	* config/ia64/ia64.c (ia64_init_builtins): Set TYPE_PRECISION
	of fpreg_type and float80_type to 80.
	* config/i386/i386.h, config/ia64/ia64.h, config/m68k/m68k.h
	* config/m68k/netbsd-elf.h:
	Change LONG_DOUBLE_TYPE_SIZE and possibly LIBGCC2_LONG_DOUBLE_TYPE_SIZE
	to evaluate to 80 whenever they would formerly have evaluated to 96.
	* config/i386/sco5.h: Remove unnecessary redefinition of
	LONG_DOUBLE_TYPE_SIZE.
	* doc/rtl.texi: Clarify uses of XFmode and TFmode.
	* config/i386/i386-modes.def: Use FRACTIONAL_FLOAT_MODE for
	XFmode, with a bitsize of 80.  Update commentary.
	* config/ia64/ia64-modes.def: Likewise.
	* config/m68k/m68k-modes.def: Likewise.

From-SVN: r85232
This commit is contained in:
Zack Weinberg 2004-07-27 21:41:23 +00:00 committed by Zack Weinberg
parent 706aa09b35
commit 968a7562a6
14 changed files with 59 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
gcc/ChangeLog
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@ -1,3 +1,24 @@
2004-07-27 Zack Weinberg <zack@codesourcery.com>
* libgcc2.c: Change all conditionals testing
LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96 to == 80.
* libgcc2.h: Likewise.
* config/i386/i386.c (ix86_init_mmx_sse_builtins): Set
TYPE_PRECISION of float80_type to 80.
* config/ia64/ia64.c (ia64_init_builtins): Set TYPE_PRECISION
of fpreg_type and float80_type to 80.
* config/i386/i386.h, config/ia64/ia64.h, config/m68k/m68k.h
* config/m68k/netbsd-elf.h:
Change LONG_DOUBLE_TYPE_SIZE and possibly LIBGCC2_LONG_DOUBLE_TYPE_SIZE
to evaluate to 80 whenever they would formerly have evaluated to 96.
* config/i386/sco5.h: Remove unnecessary redefinition of
LONG_DOUBLE_TYPE_SIZE.
* doc/rtl.texi: Clarify uses of XFmode and TFmode.
* config/i386/i386-modes.def: Use FRACTIONAL_FLOAT_MODE for
XFmode, with a bitsize of 80. Update commentary.
* config/ia64/ia64-modes.def: Likewise.
* config/m68k/m68k-modes.def: Likewise.
2004-07-27 Steven Bosscher <stevenb@suse.de>
* cfgexpand.c (tree_expand_cfg): Fix comment.

13
gcc/config/i386/i386-modes.def
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@ -18,21 +18,20 @@ along with GCC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* x86_64 ABI specifies both XF and TF modes.
/* The x86_64 ABI specifies both XF and TF modes.
XFmode is __float80 is IEEE extended; TFmode is __float128
is IEEE quad.
is IEEE quad. */
IEEE extended is 128 bits wide, except in ILP32 mode, but we
have to say it's 12 bytes so that the bitsize and wider_mode
tables are correctly set up. We correct its size below. */
FRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_intel_96_format);
FLOAT_MODE (TF, 16, ieee_quad_format);
FLOAT_MODE (XF, 12, ieee_extended_intel_96_format);
/* In ILP32 mode, XFmode has size 12 and alignment 4.
In LP64 mode, XFmode has size and alignment 16. */
ADJUST_FLOAT_FORMAT (XF, (TARGET_128BIT_LONG_DOUBLE
? &ieee_extended_intel_128_format
: &ieee_extended_intel_96_format));
ADJUST_BYTESIZE (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 12);
ADJUST_ALIGNMENT (XF, TARGET_128BIT_LONG_DOUBLE ? 16 : 4);
FLOAT_MODE (TF, 16, ieee_quad_format);
/* Add any extra modes needed to represent the condition code.

2
gcc/config/i386/i386.c
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@ -13401,7 +13401,7 @@ ix86_init_mmx_sse_builtins (void)
{
/* The __float80 type. */
float80_type = make_node (REAL_TYPE);
TYPE_PRECISION (float80_type) = 96;
TYPE_PRECISION (float80_type) = 80;
layout_type (float80_type);
(*lang_hooks.types.register_builtin_type) (float80_type, "__float80");
}

2
gcc/config/i386/i386.h
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@ -736,7 +736,7 @@ extern int x86_prefetch_sse;
/* target machine storage layout */
#define LONG_DOUBLE_TYPE_SIZE 96
#define LONG_DOUBLE_TYPE_SIZE 80
/* Set the value of FLT_EVAL_METHOD in float.h. When using only the
FPU, assume that the fpcw is set to extended precision; when using

2
gcc/config/i386/sco5.h
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@ -96,13 +96,11 @@ Boston, MA 02111-1307, USA. */
#undef WCHAR_TYPE
#undef WCHAR_TYPE_SIZE
#undef WINT_TYPE
#undef LONG_DOUBLE_TYPE_SIZE
#define SIZE_TYPE "unsigned int"
#define PTRDIFF_TYPE "int"
#define WCHAR_TYPE "long int"
#define WCHAR_TYPE_SIZE BITS_PER_WORD
#define WINT_TYPE "long int"
#define LONG_DOUBLE_TYPE_SIZE 96
/*
* New for multilib support. Set the default switches for multilib,

18
gcc/config/ia64/ia64-modes.def
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@ -22,35 +22,35 @@ Boston, MA 02111-1307, USA. */
/* IA64 requires both XF and TF modes.
XFmode is __float80 is IEEE extended; TFmode is __float128
is IEEE quad.
is IEEE quad. Both these modes occupy 16 bytes, but XFmode
only has 80 significant bits. */
IEEE extended is 128 bits wide, except in ILP32 mode, but we
have to say it's 12 bytes so that the bitsize and wider_mode
tables are correctly set up. We correct its size below. */
FLOAT_MODE (XF, 12, ieee_extended_intel_128_format);
FRACTIONAL_FLOAT_MODE (XF, 80, 16, ieee_extended_intel_128_format);
FLOAT_MODE (TF, 16, ieee_quad_format);
/* The above produces:
mode ILP32 size/align LP64 size/align
XF 12/4 12/4
XF 16/16 16/16
TF 16/16 16/16
psABI expectations:
mode ILP32 size/align LP64 size/align
XF - 16/16
XF 12/4 -
TF - -
HPUX expectations:
mode ILP32 size/align LP64 size/align
XF 16/16 16/16
XF - -
TF 16/8 -
We fix this up here. */
ADJUST_FLOAT_FORMAT (XF, (TARGET_ILP32 && !TARGET_HPUX)
? &ieee_extended_intel_96_format
: &ieee_extended_intel_128_format);
ADJUST_BYTESIZE (XF, (TARGET_ILP32 && !TARGET_HPUX) ? 12 : 16);
ADJUST_ALIGNMENT (XF, (TARGET_ILP32 && !TARGET_HPUX) ? 4 : 16);

4
gcc/config/ia64/ia64.c
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@ -8138,13 +8138,13 @@ ia64_init_builtins (void)
fpreg_type = make_node (REAL_TYPE);
/* ??? The back end should know to load/save __fpreg variables using
the ldf.fill and stf.spill instructions. */
TYPE_PRECISION (fpreg_type) = 96;
TYPE_PRECISION (fpreg_type) = 80;
layout_type (fpreg_type);
(*lang_hooks.types.register_builtin_type) (fpreg_type, "__fpreg");
/* The __float80 type. */
float80_type = make_node (REAL_TYPE);
TYPE_PRECISION (float80_type) = 96;
TYPE_PRECISION (float80_type) = 80;
layout_type (float80_type);
(*lang_hooks.types.register_builtin_type) (float80_type, "__float80");

4
gcc/config/ia64/ia64.h
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@ -448,10 +448,10 @@ while (0)
#define DOUBLE_TYPE_SIZE 64
/* long double is XFmode normally, TFmode for HPUX. */
#define LONG_DOUBLE_TYPE_SIZE (TARGET_HPUX ? 128 : 96)
#define LONG_DOUBLE_TYPE_SIZE (TARGET_HPUX ? 128 : 80)
/* We always want the XFmode operations from libgcc2.c. */
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 96
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
#define DEFAULT_SIGNED_CHAR 1

2
gcc/config/m68k/m68k-modes.def
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@ -19,4 +19,4 @@ the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* 80-bit floating point (IEEE extended, in a 96-bit field) */
FLOAT_MODE (XF, 12, ieee_extended_motorola_format);
FRACTIONAL_FLOAT_MODE (XF, 80, 12, ieee_extended_motorola_format);

2
gcc/config/m68k/m68k.h
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@ -354,7 +354,7 @@ extern int target_flags;
/* target machine storage layout */
#define LONG_DOUBLE_TYPE_SIZE 96
#define LONG_DOUBLE_TYPE_SIZE 80
/* Set the value of FLT_EVAL_METHOD in float.h. When using 68040 fp
instructions, we get proper intermediate rounding, otherwise we

4
gcc/config/m68k/netbsd-elf.h
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@ -43,12 +43,12 @@ Boston, MA 02111-1307, USA. */
#undef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE \
((TARGET_68020 || TARGET_68040 || TARGET_68040_ONLY || \
TARGET_68060) ? 96 : 64)
TARGET_68060) ? 80 : 64)
#ifdef __mc68010__
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
#else
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 96
#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
#endif
#define EXTRA_SPECS \

13
gcc/doc/rtl.texi
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@ -1100,15 +1100,16 @@ this is a double-precision IEEE floating point number.
@findex XFmode
@item XFmode
``Extended Floating'' mode represents a twelve byte floating point
number. This mode is used for IEEE extended floating point. On some
systems not all bits within these bytes will actually be used.
``Extended Floating'' mode represents an IEEE extended floating point
number. This mode only has 80 meaningful bits (ten bytes). Some
processors require such numbers to be padded to twelve bytes, others
to sixteen; this mode is used for either.
@findex TFmode
@item TFmode
``Tetra Floating'' mode represents a sixteen byte floating point number.
This gets used for both the 96-bit extended IEEE floating-point types
padded to 128 bits, and true 128-bit extended IEEE floating-point types.
``Tetra Floating'' mode represents a sixteen byte floating point number
all 128 of whose bits are meaningful. One common use is the
IEEE quad-precision format.
@findex CCmode
@item CCmode

8
gcc/libgcc2.c
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@ -1137,7 +1137,7 @@ __fixtfdi (TFtype a)
}
#endif
#if defined(L_fixunsxfdi) && (LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96)
#if defined(L_fixunsxfdi) && (LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
#define WORD_SIZE (sizeof (Wtype) * BITS_PER_UNIT)
#define HIGH_WORD_COEFF (((UDWtype) 1) << WORD_SIZE)
@ -1166,7 +1166,7 @@ __fixunsxfDI (XFtype a)
}
#endif
#if defined(L_fixxfdi) && (LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96)
#if defined(L_fixxfdi) && (LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
DWtype
__fixxfdi (XFtype a)
{
@ -1245,7 +1245,7 @@ __fixsfdi (SFtype a)
}
#endif
#if defined(L_floatdixf) && (LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96)
#if defined(L_floatdixf) && (LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80)
#define WORD_SIZE (sizeof (Wtype) * BITS_PER_UNIT)
#define HIGH_HALFWORD_COEFF (((UDWtype) 1) << (WORD_SIZE / 2))
#define HIGH_WORD_COEFF (((UDWtype) 1) << WORD_SIZE)
@ -1340,7 +1340,7 @@ __floatdisf (DWtype u)
}
#endif
#if defined(L_fixunsxfsi) && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96
#if defined(L_fixunsxfsi) && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80
/* Reenable the normal types, in case limits.h needs them. */
#undef char
#undef short

4
gcc/libgcc2.h
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@ -89,7 +89,7 @@ typedef unsigned int UTItype __attribute__ ((mode (TI)));
typedef float SFtype __attribute__ ((mode (SF)));
typedef float DFtype __attribute__ ((mode (DF)));
#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96
#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80
typedef float XFtype __attribute__ ((mode (XF)));
#endif
#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128
@ -272,7 +272,7 @@ extern UWtype __fixunssfSI (SFtype);
extern DWtype __fixunsdfDI (DFtype);
extern DWtype __fixunssfDI (SFtype);
#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96
#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80
extern DWtype __fixxfdi (XFtype);
extern DWtype __fixunsxfDI (XFtype);
extern XFtype __floatdixf (DWtype);