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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/double.h
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@ -36,8 +36,10 @@
#if _FP_W_TYPE_SIZE < 64
#define _FP_FRACTBITS_D (2 * _FP_W_TYPE_SIZE)
#define _FP_FRACTBITS_DW_D (4 * _FP_W_TYPE_SIZE)
#else
#define _FP_FRACTBITS_D _FP_W_TYPE_SIZE
#define _FP_FRACTBITS_DW_D (2 * _FP_W_TYPE_SIZE)
#endif
#define _FP_FRACBITS_D 53
@ -59,6 +61,11 @@
#define _FP_OVERFLOW_D \
((_FP_W_TYPE)1 << _FP_WFRACBITS_D % _FP_W_TYPE_SIZE)
#define _FP_WFRACBITS_DW_D (2 * _FP_WFRACBITS_D)
#define _FP_WFRACXBITS_DW_D (_FP_FRACTBITS_DW_D - _FP_WFRACBITS_DW_D)
#define _FP_HIGHBIT_DW_D \
((_FP_W_TYPE)1 << (_FP_WFRACBITS_DW_D - 1) % _FP_W_TYPE_SIZE)
typedef float DFtype __attribute__((mode(DF)));
#if _FP_W_TYPE_SIZE < 64
@ -149,6 +156,7 @@ union _FP_UNION_D
#define FP_DIV_D(R,X,Y) _FP_DIV(D,2,R,X,Y)
#define FP_SQRT_D(R,X) _FP_SQRT(D,2,R,X)
#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q)
#define FP_FMA_D(R,X,Y,Z) _FP_FMA(D,2,4,R,X,Y,Z)
#define FP_CMP_D(r,X,Y,un) _FP_CMP(D,2,r,X,Y,un)
#define FP_CMP_EQ_D(r,X,Y) _FP_CMP_EQ(D,2,r,X,Y)
@ -160,6 +168,8 @@ union _FP_UNION_D
#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_2(X)
#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_2(X)
#define _FP_FRAC_HIGH_DW_D(X) _FP_FRAC_HIGH_4(X)
#else
union _FP_UNION_D
@ -246,6 +256,7 @@ union _FP_UNION_D
#define FP_DIV_D(R,X,Y) _FP_DIV(D,1,R,X,Y)
#define FP_SQRT_D(R,X) _FP_SQRT(D,1,R,X)
#define _FP_SQRT_MEAT_D(R,S,T,X,Q) _FP_SQRT_MEAT_1(R,S,T,X,Q)
#define FP_FMA_D(R,X,Y,Z) _FP_FMA(D,1,2,R,X,Y,Z)
/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by
the target machine. */
@ -260,4 +271,6 @@ union _FP_UNION_D
#define _FP_FRAC_HIGH_D(X) _FP_FRAC_HIGH_1(X)
#define _FP_FRAC_HIGH_RAW_D(X) _FP_FRAC_HIGH_1(X)
#define _FP_FRAC_HIGH_DW_D(X) _FP_FRAC_HIGH_2(X)
#endif /* W_TYPE_SIZE < 64 */