Author: das
Date: Sat Oct 15 04:22:55 2011
New Revision: 226373
URL: http://svn.freebsd.org/changeset/base/226373
Log:
Add INSERT_WORD64 and EXTRACT_WORD64 macros for use in s_fma.c.
Modified:
head/lib/msun/src/math_private.h
Modified: head/lib/msun/src/math_private.h
==============================================================================
--- head/lib/msun/src/math_private.h Sat Oct 15 04:17:20 2011
(r226372)
+++ head/lib/msun/src/math_private.h Sat Oct 15 04:22:55 2011
(r226373)
@@ -58,6 +58,10 @@ typedef union
u_int32_t msw;
u_int32_t lsw;
} parts;
+ struct
+ {
+ u_int64_t w;
+ } xparts;
} ieee_double_shape_type;
#endif
@@ -72,6 +76,10 @@ typedef union
u_int32_t lsw;
u_int32_t msw;
} parts;
+ struct
+ {
+ u_int64_t w;
+ } xparts;
} ieee_double_shape_type;
#endif
@@ -86,6 +94,14 @@ do {
\
(ix1) = ew_u.parts.lsw; \
} while (0)
+/* Get a 64-bit int from a double. */
+#define EXTRACT_WORD64(ix,d) \
+do { \
+ ieee_double_shape_type ew_u; \
+ ew_u.value = (d); \
+ (ix) = ew_u.xparts.w; \
+} while (0)
+
/* Get the more significant 32 bit int from a double. */
#define GET_HIGH_WORD(i,d) \
@@ -114,6 +130,14 @@ do {
\
(d) = iw_u.value; \
} while (0)
+/* Set a double from a 64-bit int. */
+#define INSERT_WORD64(d,ix) \
+do { \
+ ieee_double_shape_type iw_u; \
+ iw_u.xparts.w = (ix); \
+ (d) = iw_u.value; \
+} while (0)
+
/* Set the more significant 32 bits of a double from an int. */
#define SET_HIGH_WORD(d,v) \
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