about summary refs log tree commit diff
path: root/soft-fp/single.h
diff options
context:
space:
mode:
authorJoseph Myers <joseph@codesourcery.com>2013-07-02 14:55:32 +0000
committerJoseph Myers <joseph@codesourcery.com>2013-07-02 14:55:32 +0000
commit77f01ab5d1d2eead1bd4a9135d6a76ebd3fe21e5 (patch)
tree84727a1d5b17bbfe868ef2246e59bffc98f57495 /soft-fp/single.h
parent1413c693d3390e02399a0042ef97b73918749977 (diff)
downloadglibc-77f01ab5d1d2eead1bd4a9135d6a76ebd3fe21e5.tar.gz
glibc-77f01ab5d1d2eead1bd4a9135d6a76ebd3fe21e5.tar.xz
glibc-77f01ab5d1d2eead1bd4a9135d6a76ebd3fe21e5.zip
Implement fma in soft-fp.
Diffstat (limited to 'soft-fp/single.h')
-rw-r--r--soft-fp/single.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/soft-fp/single.h b/soft-fp/single.h
index dec0031e9a..c94f31f99b 100644
--- a/soft-fp/single.h
+++ b/soft-fp/single.h
@@ -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