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new endian asm for ia64 and x86_64, general reorg and clean up. New

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Wed Dec 18 16:19:08 2002  Manish Singh  <yosh@gimp.org>

        * glib/gtypes.h: new endian asm for ia64 and x86_64, general
        reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
        that should optimize better. (#101318)
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Manish Singh 2002-12-19 00:20:03 +00:00 committed by Manish Singh
parent 634b48f254
commit ad427fd806
8 changed files with 184 additions and 75 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

6
ChangeLog.pre-2-10
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@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

6
ChangeLog.pre-2-12
View File

@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

6
ChangeLog.pre-2-2
View File

@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

6
ChangeLog.pre-2-4
View File

@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

6
ChangeLog.pre-2-6
View File

@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

6
ChangeLog.pre-2-8
View File

@ -1,3 +1,9 @@
Wed Dec 18 16:19:08 2002 Manish Singh <yosh@gimp.org>
* glib/gtypes.h: new endian asm for ia64 and x86_64, general
reorg and clean up. New implementation of GUINT16_SWAP_LE_BE_CONSTANT()
that should optimize better. (#101318)
2002-12-17 Tor Lillqvist <tml@iki.fi>
Improvement based on suggestion by Thorsten Maerz:

217
glib/gtypes.h
View File

@ -106,97 +106,164 @@ typedef void (*GFreeFunc) (gpointer data);
/* Basic bit swapping functions
*/
#define GUINT16_SWAP_LE_BE_CONSTANT(val) ((guint16) ( \
(((guint16) (val) & (guint16) 0x00ffU) << 8) | \
(((guint16) (val) & (guint16) 0xff00U) >> 8)))
(guint16) ((guint16) (val) >> 8) | \
(guint16) ((guint16) (val) << 8)))
#define GUINT32_SWAP_LE_BE_CONSTANT(val) ((guint32) ( \
(((guint32) (val) & (guint32) 0x000000ffU) << 24) | \
(((guint32) (val) & (guint32) 0x0000ff00U) << 8) | \
(((guint32) (val) & (guint32) 0x00ff0000U) >> 8) | \
(((guint32) (val) & (guint32) 0xff000000U) >> 24)))
/* Intel specific stuff for speed
*/
#if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2
# define GUINT16_SWAP_LE_BE_X86(val) \
(G_GNUC_EXTENSION \
({ register guint16 __v; \
if (__builtin_constant_p (val)) \
__v = GUINT16_SWAP_LE_BE_CONSTANT (val); \
else \
__asm__ ("rorw $8, %w0" \
: "=r" (__v) \
: "0" ((guint16) (val))); \
__v; }))
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_X86 (val))
# if !defined(__i486__) && !defined(__i586__) \
&& !defined(__pentium__) && !defined(__i686__) && !defined(__pentiumpro__)
# define GUINT32_SWAP_LE_BE_X86(val) \
(G_GNUC_EXTENSION \
({ register guint32 __v; \
if (__builtin_constant_p (val)) \
__v = GUINT32_SWAP_LE_BE_CONSTANT (val); \
else \
__asm__ ("rorw $8, %w0\n\t" \
"rorl $16, %0\n\t" \
"rorw $8, %w0" \
: "=r" (__v) \
: "0" ((guint32) (val))); \
__v; }))
# else /* 486 and higher has bswap */
# define GUINT32_SWAP_LE_BE_X86(val) \
(G_GNUC_EXTENSION \
({ register guint32 __v; \
if (__builtin_constant_p (val)) \
__v = GUINT32_SWAP_LE_BE_CONSTANT (val); \
else \
__asm__ ("bswap %0" \
: "=r" (__v) \
: "0" ((guint32) (val))); \
__v; }))
# endif /* processor specific 32-bit stuff */
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86 (val))
#else /* !__i386__ */
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
#endif /* __i386__ */
#define GUINT64_SWAP_LE_BE_CONSTANT(val) ((guint64) ( \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x00000000000000ffU)) << 56) | \
(guint64) G_GINT64_CONSTANT (0x00000000000000ffU)) << 56) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x000000000000ff00U)) << 40) | \
(guint64) G_GINT64_CONSTANT (0x000000000000ff00U)) << 40) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x0000000000ff0000U)) << 24) | \
(guint64) G_GINT64_CONSTANT (0x0000000000ff0000U)) << 24) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x00000000ff000000U)) << 8) | \
(guint64) G_GINT64_CONSTANT (0x00000000ff000000U)) << 8) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x000000ff00000000U)) >> 8) | \
(guint64) G_GINT64_CONSTANT (0x000000ff00000000U)) >> 8) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x0000ff0000000000U)) >> 24) | \
(guint64) G_GINT64_CONSTANT (0x0000ff0000000000U)) >> 24) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0x00ff000000000000U)) >> 40) | \
(guint64) G_GINT64_CONSTANT (0x00ff000000000000U)) >> 40) | \
(((guint64) (val) & \
(guint64) G_GINT64_CONSTANT(0xff00000000000000U)) >> 56)))
#if defined (__i386__) && defined (__GNUC__) && __GNUC__ >= 2
# define GUINT64_SWAP_LE_BE_X86(val) \
(__extension__ \
({ union { guint64 __ll; \
guint32 __l[2]; } __r; \
if (__builtin_constant_p (val)) \
__r.__ll = GUINT64_SWAP_LE_BE_CONSTANT (val); \
(guint64) G_GINT64_CONSTANT (0xff00000000000000U)) >> 56)))
/* Arch specific stuff for speed
*/
#if defined (__GNUC__) && (__GNUC__ >= 2) && defined (__OPTIMIZE__)
# if defined (__i386__)
# define GUINT16_SWAP_LE_BE_IA32(val) \
(__extension__ \
({ register guint16 __v, __x = ((guint16) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT16_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ ("rorw $8, %w0" \
: "=r" (__v) \
: "0" (__x) \
: "cc"); \
__v; }))
# if !defined (__i486__) && !defined (__i586__) \
&& !defined (__pentium__) && !defined (__i686__) \
&& !defined (__pentiumpro__)
# define GUINT32_SWAP_LE_BE_IA32(val) \
(__extension__ \
({ register guint32 __v, __x = ((guint32) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT32_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ ("rorw $8, %w0\n\t" \
"rorl $16, %0\n\t" \
"rorw $8, %w0" \
: "=r" (__v) \
: "0" (__x) \
: "cc"); \
__v; }))
# else /* 486 and higher has bswap */
# define GUINT32_SWAP_LE_BE_IA32(val) \
(__extension__ \
({ register guint32 __v, __x = ((guint32) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT32_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ ("bswap %0" \
: "=r" (__v) \
: "0" (__x)); \
__v; }))
# endif /* processor specific 32-bit stuff */
# define GUINT64_SWAP_LE_BE_IA32(val) \
(__extension__ \
({ union { guint64 __ll; \
guint32 __l[2]; } __w, __r; \
__w.__ll = ((guint64) (val)); \
if (__builtin_constant_p (__w.__ll)) \
__r.__ll = GUINT64_SWAP_LE_BE_CONSTANT (__w.__ll); \
else \
{ \
__r.__l[0] = GUINT32_SWAP_LE_BE (__w.__l[1]); \
__r.__l[1] = GUINT32_SWAP_LE_BE (__w.__l[0]); \
} \
__r.__ll; }))
/* Possibly just use the constant version and let gcc figure it out? */
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_IA32 (val))
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA32 (val))
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA32 (val))
# elif defined (__ia64__)
# define GUINT16_SWAP_LE_BE_IA64(val) \
(__extension__ \
({ register guint16 __v, __x = ((guint16) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT16_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ __volatile__ ("shl %0 = %1, 48 ;;" \
"mux1 %0 = %0, @rev ;;" \
: "=r" (__v) \
: "r" (__x)); \
__v; }))
# define GUINT32_SWAP_LE_BE_IA64(val) \
(__extension__ \
({ register guint32 __v, __x = ((guint32) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT32_SWAP_LE_BE_CONSTANT (__x); \
else \
{ \
union { guint64 __ll; \
guint32 __l[2]; } __w; \
__w.__ll = ((guint64) val); \
__r.__l[0] = GUINT32_SWAP_LE_BE (__w.__l[1]); \
__r.__l[1] = GUINT32_SWAP_LE_BE (__w.__l[0]); \
} \
__r.__ll; }))
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86 (val))
#else /* !__i386__ */
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT(val))
#endif
__asm__ __volatile__ ("shl %0 = %1, 32 ;;" \
"mux1 %0 = %0, @rev ;;" \
: "=r" (__v) \
: "r" (__x)); \
__v; }))
# define GUINT64_SWAP_LE_BE_IA64(val) \
(__extension__ \
({ register guint64 __v, __x = ((guint64) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT64_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ __volatile__ ("mux1 %0 = %1, @rev ;;" \
: "=r" (__v) \
: "r" (__x)); \
__v; }))
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_IA64 (val))
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_IA64 (val))
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_IA64 (val))
# elif defined (__x86_64__)
# define GUINT32_SWAP_LE_BE_X86_64(val) \
(__extension__ \
({ register guint32 __v, __x = ((guint32) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT32_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ ("bswapl %0" \
: "=r" (__v) \
: "0" (__x)); \
__v; }))
# define GUINT64_SWAP_LE_BE_X86_64(val) \
(__extension__ \
({ register guint64 __v, __x = ((guint64) (val)); \
if (__builtin_constant_p (__x)) \
__v = GUINT64_SWAP_LE_BE_CONSTANT (__x); \
else \
__asm__ ("bswapq %0" \
: "=r" (__v) \
: "0" (__x)); \
__v; }))
/* gcc seems to figure out optimal code for this on its own */
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_X86_64 (val))
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_X86_64 (val))
# else /* generic gcc */
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))
# endif
#else /* generic */
# define GUINT16_SWAP_LE_BE(val) (GUINT16_SWAP_LE_BE_CONSTANT (val))
# define GUINT32_SWAP_LE_BE(val) (GUINT32_SWAP_LE_BE_CONSTANT (val))
# define GUINT64_SWAP_LE_BE(val) (GUINT64_SWAP_LE_BE_CONSTANT (val))
#endif /* generic */
#define GUINT16_SWAP_LE_PDP(val) ((guint16) (val))
#define GUINT16_SWAP_BE_PDP(val) (GUINT16_SWAP_LE_BE (val))