mirror/glibc
2
0
Fork 0
mirror of git://sourceware.org/git/glibc.git synced 2024-11-21 01:12:26 +08:00
Code Issues Packages Projects Releases Wiki Activity

Make soft-float ARM use soft-fp fma/fmaf.

Browse Source
This commit is contained in:
Joseph Myers 2013-07-02 19:51:19 +00:00
parent c87156e5e9
commit 6bed143eb4
5 changed files with 69 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
ports/ChangeLog.arm
View File

@ -1,3 +1,12 @@
2013-07-02 Joseph Myers <joseph@codesourcery.com>
[BZ #13304]
* sysdeps/arm/s_fma.c: New file.
* sysdeps/arm/s_fmaf.c: New file.
* sysdeps/arm/soft-fp/sfp-machine.h: New file. Based on powerpc
version.
* sysdeps/arm/Implies: Add arm/soft-fp.
2013-07-02 Will Newton <will.newton@linaro.org>
* sysdeps/arm/dl-machine.h (elf_machine_rela): Pass dl_hwcap

1
ports/sysdeps/arm/Implies
View File

@ -1,3 +1,4 @@
arm/soft-fp
wordsize-32
ieee754/flt-32
ieee754/dbl-64

5
ports/sysdeps/arm/s_fma.c Normal file
View File

@ -0,0 +1,5 @@
#ifdef __SOFTFP__
# include <soft-fp/fmadf4.c>
#else
# include <sysdeps/ieee754/dbl-64/s_fma.c>
#endif

5
ports/sysdeps/arm/s_fmaf.c Normal file
View File

@ -0,0 +1,5 @@
#ifdef __SOFTFP__
# include <soft-fp/fmasf4.c>
#else
# include <sysdeps/ieee754/dbl-64/s_fmaf.c>
#endif

49
ports/sysdeps/arm/soft-fp/sfp-machine.h Normal file
View File

@ -0,0 +1,49 @@
#define _FP_W_TYPE_SIZE 32
#define _FP_W_TYPE unsigned long
#define _FP_WS_TYPE signed long
#define _FP_I_TYPE long
#define _FP_MUL_MEAT_S(R,X,Y) \
_FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_D(R,X,Y) \
_FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_Q(R,X,Y) \
_FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_S(R,X,Y) \
_FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_D(R,X,Y) \
_FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
_FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y)
#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
#define _FP_NANSIGN_S 0
#define _FP_NANSIGN_D 0
#define _FP_NANSIGN_Q 0
#define _FP_KEEPNANFRACP 1
#define _FP_QNANNEGATEDP 0
/* Someone please check this. */
#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
do { \
if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
&& !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
{ \
R##_s = Y##_s; \
_FP_FRAC_COPY_##wc(R,Y); \
} \
else \
{ \
R##_s = X##_s; \
_FP_FRAC_COPY_##wc(R,X); \
} \
R##_c = FP_CLS_NAN; \
} while (0)