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2014-03-21 Maciej W. Rozycki <macro@codesourcery.com> 

* libc/stdlib/gd_qnan.h (f_QNAN, d_QNAN0, d_QNAN1): Add MIPS
        versions.
        (ld_QNAN0, ld_QNAN1, ld_QNAN2, ld_QNAN3): Don't define for MIPS.
        (ldus_QNAN0, ldus_QNAN1, ldus_QNAN2, ldus_QNAN3, ldus_QNAN4):
        Likewise.
        * libc/stdlib/ldtoa.c (nan113, nan64, nan53, nan24): Add MIPS
        versions.
        (enan): Handle legacy MIPS payloads.
        * libm/common/s_nan.c (nan): Use __builtin_nan if supported by
        the compiler.
        * libm/common/sf_nan.c (nanf): Likewise.
This commit is contained in:
Jeff Johnston 2014-03-21 21:27:29 +00:00
parent e669b401f7
commit b7f5fb36f1
5 changed files with 81 additions and 2 deletions
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14
newlib/ChangeLog
View File

@ -1,3 +1,17 @@
2014-03-21 Maciej W. Rozycki <macro@codesourcery.com>
* libc/stdlib/gd_qnan.h (f_QNAN, d_QNAN0, d_QNAN1): Add MIPS
versions.
(ld_QNAN0, ld_QNAN1, ld_QNAN2, ld_QNAN3): Don't define for MIPS.
(ldus_QNAN0, ldus_QNAN1, ldus_QNAN2, ldus_QNAN3, ldus_QNAN4):
Likewise.
* libc/stdlib/ldtoa.c (nan113, nan64, nan53, nan24): Add MIPS
versions.
(enan): Handle legacy MIPS payloads.
* libm/common/s_nan.c (nan): Use __builtin_nan if supported by
the compiler.
* libm/common/sf_nan.c (nanf): Likewise.
2014-03-21 Sabrina Ni <sabrinanitw@gmail.com>
* libc/machine/nds32/configure: Regenerated.

20
newlib/libc/stdlib/gd_qnan.h
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@ -1,5 +1,6 @@
#ifdef __IEEE_BIG_ENDIAN
#if !defined(__mips)
#define f_QNAN 0x7fc00000
#define d_QNAN0 0x7ff80000
#define d_QNAN1 0x0
@ -12,9 +13,19 @@
#define ldus_QNAN2 0x0
#define ldus_QNAN3 0x0
#define ldus_QNAN4 0x0
#elif defined(__mips_nan2008)
#define f_QNAN 0x7fc00000
#define d_QNAN0 0x7ff80000
#define d_QNAN1 0x0
#else
#define f_QNAN 0x7fbfffff
#define d_QNAN0 0x7ff7ffff
#define d_QNAN1 0xffffffff
#endif
#elif defined(__IEEE_LITTLE_ENDIAN)
#if !defined(__mips)
#define f_QNAN 0xffc00000
#define d_QNAN0 0x0
#define d_QNAN1 0xfff80000
@ -27,6 +38,15 @@
#define ldus_QNAN2 0x0
#define ldus_QNAN3 0xc000
#define ldus_QNAN4 0xffff
#elif defined(__mips_nan2008)
#define f_QNAN 0x7fc00000
#define d_QNAN0 0x0
#define d_QNAN1 0x7ff80000
#else
#define f_QNAN 0x7fbfffff
#define d_QNAN0 0xffffffff
#define d_QNAN1 0x7ff7ffff
#endif
#else
#error IEEE endian not defined

41
newlib/libc/stdlib/ldtoa.c
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@ -3679,16 +3679,40 @@ emdnorm( num, 0, 0, ln, 0, ldp );
/* NaN bit patterns
*/
#ifdef MIEEE
#if !defined(__mips)
static _CONST unsigned short nan113[8] = {
0x7fff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan64[6] = {0x7fff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan64[6] = {
0x7fff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan53[4] = {0x7fff, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan24[2] = {0x7fff, 0xffff};
#elif defined(__mips_nan2008) /* __mips */
static _CONST unsigned short nan113[8] = {0x7fff, 0x8000, 0, 0, 0, 0, 0, 0};
static _CONST unsigned short nan64[6] = {0x7fff, 0xc000, 0, 0, 0, 0};
static _CONST unsigned short nan53[4] = {0x7ff8, 0, 0, 0};
static _CONST unsigned short nan24[2] = {0x7fc0, 0};
#else /* __mips && !__mips_nan2008 */
static _CONST unsigned short nan113[8] = {
0x7fff, 0x7fff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan64[6] = {
0x7fff, 0xbfff, 0xffff, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan53[4] = {0x7ff7, 0xffff, 0xffff, 0xffff};
static _CONST unsigned short nan24[2] = {0x7fbf, 0xffff};
#endif /* __mips && !__mips_nan2008 */
#else /* !MIEEE */
#if !defined(__mips) || defined(__mips_nan2008)
static _CONST unsigned short nan113[8] = {0, 0, 0, 0, 0, 0, 0x8000, 0x7fff};
static _CONST unsigned short nan64[6] = {0, 0, 0, 0, 0xc000, 0x7fff};
static _CONST unsigned short nan53[4] = {0, 0, 0, 0x7ff8};
static _CONST unsigned short nan24[2] = {0, 0x7fc0};
#else /* __mips && !__mips_nan2008 */
static _CONST unsigned short nan113[8] = {
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0x7fff, 0x7fff};
static _CONST unsigned short nan64[6] = {
0xffff, 0xffff, 0xffff, 0xffff, 0xbfff, 0x7fff};
static _CONST unsigned short nan53[4] = {0xffff, 0xffff, 0xffff, 0x7ff7};
static _CONST unsigned short nan24[2] = {0xffff, 0x7fbf};
#endif /* __mips && !__mips_nan2008 */
#endif /* !MIEEE */
@ -3721,9 +3745,15 @@ switch( size )
break;
case NBITS:
#if !defined(__mips) || defined(__mips_nan2008)
for( i=0; i<NE-2; i++ )
*nan++ = 0;
*nan++ = 0xc000;
#else /* __mips && !__mips_nan2008 */
for( i=0; i<NE-2; i++ )
*nan++ = 0xffff;
*nan++ = 0xbfff;
#endif /* __mips && !__mips_nan2008 */
*nan++ = 0x7fff;
return;
@ -3731,9 +3761,16 @@ switch( size )
*nan++ = 0;
*nan++ = 0x7fff;
*nan++ = 0;
#if !defined(__mips) || defined(__mips_nan2008)
*nan++ = 0xc000;
for( i=4; i<NI; i++ )
for( i=4; i<NI-1; i++ )
*nan++ = 0;
#else /* __mips && !__mips_nan2008 */
*nan++ = 0xbfff;
for( i=4; i<NI-1; i++ )
*nan++ = 0xffff;
#endif /* __mips && !__mips_nan2008 */
*nan++ = 0;
return;
#endif
default:

4
newlib/libm/common/s_nan.c
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@ -41,7 +41,11 @@ QUICKREF
{
double x;
#if __GNUC_PREREQ (3, 3)
x = __builtin_nan("");
#else
INSERT_WORDS(x,0x7ff80000,0);
#endif
return x;
}

4
newlib/libm/common/sf_nan.c
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@ -9,7 +9,11 @@
{
float x;
#if __GNUC_PREREQ (3, 3)
x = __builtin_nanf("");
#else
SET_FLOAT_WORD(x,0x7fc00000);
#endif
return x;
}