lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Implement fma in soft-fp.

Browse Source
This commit is contained in:
Joseph Myers
2013-07-02 14:55:32 +00:00
parent 1413c693d3
commit 77f01ab5d1
21 changed files with 681 additions and 109 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
soft-fp/single.h
View File

@ -36,6 +36,12 @@
#define _FP_FRACTBITS_S _FP_W_TYPE_SIZE
#if _FP_W_TYPE_SIZE < 64
# define _FP_FRACTBITS_DW_S (2 * _FP_W_TYPE_SIZE)
#else
# define _FP_FRACTBITS_DW_S _FP_W_TYPE_SIZE
#endif
#define _FP_FRACBITS_S 24
#define _FP_FRACXBITS_S (_FP_FRACTBITS_S - _FP_FRACBITS_S)
#define _FP_WFRACBITS_S (_FP_WORKBITS + _FP_FRACBITS_S)
@ -49,6 +55,11 @@
#define _FP_IMPLBIT_SH_S ((_FP_W_TYPE)1 << (_FP_FRACBITS_S-1+_FP_WORKBITS))
#define _FP_OVERFLOW_S ((_FP_W_TYPE)1 << (_FP_WFRACBITS_S))
#define _FP_WFRACBITS_DW_S (2 * _FP_WFRACBITS_S)
#define _FP_WFRACXBITS_DW_S (_FP_FRACTBITS_DW_S - _FP_WFRACBITS_DW_S)
#define _FP_HIGHBIT_DW_S \
((_FP_W_TYPE)1 << (_FP_WFRACBITS_DW_S - 1) % _FP_W_TYPE_SIZE)
/* The implementation of _FP_MUL_MEAT_S and _FP_DIV_MEAT_S should be
chosen by the target machine. */
@ -139,6 +150,12 @@ union _FP_UNION_S
#define FP_SQRT_S(R,X) _FP_SQRT(S,1,R,X)
#define _FP_SQRT_MEAT_S(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q)
#if _FP_W_TYPE_SIZE < 64
# define FP_FMA_S(R, X, Y, Z) _FP_FMA(S, 1, 2, R, X, Y, Z)
#else
# define FP_FMA_S(R, X, Y, Z) _FP_FMA(S, 1, 1, R, X, Y, Z)
#endif
#define FP_CMP_S(r,X,Y,un) _FP_CMP(S,1,r,X,Y,un)
#define FP_CMP_EQ_S(r,X,Y) _FP_CMP_EQ(S,1,r,X,Y)
#define FP_CMP_UNORD_S(r,X,Y) _FP_CMP_UNORD(S,1,r,X,Y)
@ -148,3 +165,9 @@ union _FP_UNION_S
#define _FP_FRAC_HIGH_S(X) _FP_FRAC_HIGH_1(X)
#define _FP_FRAC_HIGH_RAW_S(X) _FP_FRAC_HIGH_1(X)
#if _FP_W_TYPE_SIZE < 64
# define _FP_FRAC_HIGH_DW_S(X) _FP_FRAC_HIGH_2(X)
#else
# define _FP_FRAC_HIGH_DW_S(X) _FP_FRAC_HIGH_1(X)
#endif