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MIPS: math-emu: Add z argument macros 

Introduce macros for handling the "z" argument to maddf & msubf, making
its handling consistent with that of the "x" & "y" arguments rather than
open-coding equivalents.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Maciej W. Rozycki <macro@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13156/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Paul Burton 2016-04-21 14:04:51 +01:00 committed by Ralf Baechle
parent d728f6709b
commit e2d11e1a83
5 changed files with 20 additions and 9 deletions
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9
arch/mips/math-emu/dp_maddf.c
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@ -36,16 +36,15 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
COMPXDP;
COMPYDP;
u64 zm; int ze; int zs __maybe_unused; int zc;
COMPZDP;
EXPLODEXDP;
EXPLODEYDP;
EXPLODEDP(z, zc, zs, ze, zm)
EXPLODEZDP;
FLUSHXDP;
FLUSHYDP;
FLUSHDP(z, zc, zs, ze, zm);
FLUSHZDP;
ieee754_clearcx();
@ -54,7 +53,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
ieee754_setcx(IEEE754_INVALID_OPERATION);
return ieee754dp_nanxcpt(z);
case IEEE754_CLASS_DNORM:
DPDNORMx(zm, ze);
DPDNORMZ;
/* QNAN is handled separately below */
}

1
arch/mips/math-emu/ieee754dp.h
View File

@ -60,6 +60,7 @@ static inline int ieee754dp_finite(union ieee754dp x)
while ((m >> DP_FBITS) == 0) { m <<= 1; e--; }
#define DPDNORMX DPDNORMx(xm, xe)
#define DPDNORMY DPDNORMx(ym, ye)
#define DPDNORMZ DPDNORMx(zm, ze)
static inline union ieee754dp builddp(int s, int bx, u64 m)
{

10
arch/mips/math-emu/ieee754int.h
View File

@ -55,6 +55,9 @@ static inline int ieee754_class_nan(int xc)
#define COMPYSP \
unsigned ym; int ye; int ys; int yc
#define COMPZSP \
unsigned zm; int ze; int zs; int zc
#define EXPLODESP(v, vc, vs, ve, vm) \
{ \
vs = SPSIGN(v); \
@ -81,6 +84,7 @@ static inline int ieee754_class_nan(int xc)
}
#define EXPLODEXSP EXPLODESP(x, xc, xs, xe, xm)
#define EXPLODEYSP EXPLODESP(y, yc, ys, ye, ym)
#define EXPLODEZSP EXPLODESP(z, zc, zs, ze, zm)
#define COMPXDP \
@ -89,6 +93,9 @@ static inline int ieee754_class_nan(int xc)
#define COMPYDP \
u64 ym; int ye; int ys; int yc
#define COMPZDP \
u64 zm; int ze; int zs; int zc
#define EXPLODEDP(v, vc, vs, ve, vm) \
{ \
vm = DPMANT(v); \
@ -115,6 +122,7 @@ static inline int ieee754_class_nan(int xc)
}
#define EXPLODEXDP EXPLODEDP(x, xc, xs, xe, xm)
#define EXPLODEYDP EXPLODEDP(y, yc, ys, ye, ym)
#define EXPLODEZDP EXPLODEDP(z, zc, zs, ze, zm)
#define FLUSHDP(v, vc, vs, ve, vm) \
if (vc==IEEE754_CLASS_DNORM) { \
@ -140,7 +148,9 @@ static inline int ieee754_class_nan(int xc)
#define FLUSHXDP FLUSHDP(x, xc, xs, xe, xm)
#define FLUSHYDP FLUSHDP(y, yc, ys, ye, ym)
#define FLUSHZDP FLUSHDP(z, zc, zs, ze, zm)
#define FLUSHXSP FLUSHSP(x, xc, xs, xe, xm)
#define FLUSHYSP FLUSHSP(y, yc, ys, ye, ym)
#define FLUSHZSP FLUSHSP(z, zc, zs, ze, zm)
#endif /* __IEEE754INT_H */

1
arch/mips/math-emu/ieee754sp.h
View File

@ -65,6 +65,7 @@ static inline int ieee754sp_finite(union ieee754sp x)
while ((m >> SP_FBITS) == 0) { m <<= 1; e--; }
#define SPDNORMX SPDNORMx(xm, xe)
#define SPDNORMY SPDNORMx(ym, ye)
#define SPDNORMZ SPDNORMx(zm, ze)
static inline union ieee754sp buildsp(int s, int bx, unsigned m)
{

8
arch/mips/math-emu/sp_maddf.c
View File

@ -36,15 +36,15 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
COMPXSP;
COMPYSP;
u32 zm; int ze; int zs __maybe_unused; int zc;
COMPZSP;
EXPLODEXSP;
EXPLODEYSP;
EXPLODESP(z, zc, zs, ze, zm)
EXPLODEZSP;
FLUSHXSP;
FLUSHYSP;
FLUSHSP(z, zc, zs, ze, zm);
FLUSHZSP;
ieee754_clearcx();
@ -53,7 +53,7 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
ieee754_setcx(IEEE754_INVALID_OPERATION);
return ieee754sp_nanxcpt(z);
case IEEE754_CLASS_DNORM:
SPDNORMx(zm, ze);
SPDNORMZ;
/* QNAN is handled separately below */
}