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Add INSERT_WORD64 and EXTRACT_WORD64 macros for use in s_fma.c.

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This commit is contained in:
David Schultz 2011-10-15 04:22:55 +00:00
parent 90a83ac60a
commit 3d4dfde48a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=226373
1 changed files with 24 additions and 0 deletions
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24
lib/msun/src/math_private.h
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@ -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) \