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Implement fma in soft-fp.

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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
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13
soft-fp/extended.h
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@@ -33,8 +33,10 @@
#if _FP_W_TYPE_SIZE < 64
#define _FP_FRACTBITS_E (4*_FP_W_TYPE_SIZE)
#define _FP_FRACTBITS_DW_E (8*_FP_W_TYPE_SIZE)
#else
#define _FP_FRACTBITS_E (2*_FP_W_TYPE_SIZE)
#define _FP_FRACTBITS_DW_E (4*_FP_W_TYPE_SIZE)
#endif
#define _FP_FRACBITS_E 64
@@ -56,6 +58,11 @@
#define _FP_OVERFLOW_E \
((_FP_W_TYPE)1 << (_FP_WFRACBITS_E % _FP_W_TYPE_SIZE))
#define _FP_WFRACBITS_DW_E (2 * _FP_WFRACBITS_E)
#define _FP_WFRACXBITS_DW_E (_FP_FRACTBITS_DW_E - _FP_WFRACBITS_DW_E)
#define _FP_HIGHBIT_DW_E \
((_FP_W_TYPE)1 << (_FP_WFRACBITS_DW_E - 1) % _FP_W_TYPE_SIZE)
typedef float XFtype __attribute__((mode(XF)));
#if _FP_W_TYPE_SIZE < 64
@@ -192,6 +199,7 @@ union _FP_UNION_E
#define FP_MUL_E(R,X,Y) _FP_MUL(E,4,R,X,Y)
#define FP_DIV_E(R,X,Y) _FP_DIV(E,4,R,X,Y)
#define FP_SQRT_E(R,X) _FP_SQRT(E,4,R,X)
#define FP_FMA_E(R,X,Y,Z) _FP_FMA(E,4,8,R,X,Y,Z)
/*
* Square root algorithms:
@@ -258,6 +266,8 @@ union _FP_UNION_E
#define _FP_FRAC_HIGH_E(X) (X##_f[2])
#define _FP_FRAC_HIGH_RAW_E(X) (X##_f[1])
#define _FP_FRAC_HIGH_DW_E(X) (X##_f[4])
#else /* not _FP_W_TYPE_SIZE < 64 */
union _FP_UNION_E
{
@@ -383,6 +393,7 @@ union _FP_UNION_E
#define FP_MUL_E(R,X,Y) _FP_MUL(E,2,R,X,Y)
#define FP_DIV_E(R,X,Y) _FP_DIV(E,2,R,X,Y)
#define FP_SQRT_E(R,X) _FP_SQRT(E,2,R,X)
#define FP_FMA_E(R,X,Y,Z) _FP_FMA(E,2,4,R,X,Y,Z)
/*
* Square root algorithms:
@@ -427,4 +438,6 @@ union _FP_UNION_E
#define _FP_FRAC_HIGH_E(X) (X##_f1)
#define _FP_FRAC_HIGH_RAW_E(X) (X##_f0)
#define _FP_FRAC_HIGH_DW_E(X) (X##_f[2])
#endif /* not _FP_W_TYPE_SIZE < 64 */