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-rw-r--r--src/math/fma.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/src/math/fma.c b/src/math/fma.c
index 1b1c1321..84868be5 100644
--- a/src/math/fma.c
+++ b/src/math/fma.c
@@ -232,16 +232,16 @@ static inline struct dd dd_add(double a, double b)
static inline double add_adjusted(double a, double b)
{
struct dd sum;
- uint64_t hibits, lobits;
+ union {double f; uint64_t i;} uhi, ulo;
sum = dd_add(a, b);
if (sum.lo != 0) {
- EXTRACT_WORD64(hibits, sum.hi);
- if ((hibits & 1) == 0) {
+ uhi.f = sum.hi;
+ if ((uhi.i & 1) == 0) {
/* hibits += (int)copysign(1.0, sum.hi * sum.lo) */
- EXTRACT_WORD64(lobits, sum.lo);
- hibits += 1 - ((hibits ^ lobits) >> 62);
- INSERT_WORD64(sum.hi, hibits);
+ ulo.f = sum.lo;
+ uhi.i += 1 - ((uhi.i ^ ulo.i) >> 62);
+ sum.hi = uhi.f;
}
}
return (sum.hi);
@@ -255,7 +255,7 @@ static inline double add_adjusted(double a, double b)
static inline double add_and_denormalize(double a, double b, int scale)
{
struct dd sum;
- uint64_t hibits, lobits;
+ union {double f; uint64_t i;} uhi, ulo;
int bits_lost;
sum = dd_add(a, b);
@@ -271,13 +271,13 @@ static inline double add_and_denormalize(double a, double b, int scale)
* break the ties manually.
*/
if (sum.lo != 0) {
- EXTRACT_WORD64(hibits, sum.hi);
- bits_lost = -((int)(hibits >> 52) & 0x7ff) - scale + 1;
- if (bits_lost != 1 ^ (int)(hibits & 1)) {
+ uhi.f = sum.hi;
+ bits_lost = -((int)(uhi.i >> 52) & 0x7ff) - scale + 1;
+ if (bits_lost != 1 ^ (int)(uhi.i & 1)) {
/* hibits += (int)copysign(1.0, sum.hi * sum.lo) */
- EXTRACT_WORD64(lobits, sum.lo);
- hibits += 1 - (((hibits ^ lobits) >> 62) & 2);
- INSERT_WORD64(sum.hi, hibits);
+ ulo.f = sum.lo;
+ uhi.i += 1 - (((uhi.i ^ ulo.i) >> 62) & 2);
+ sum.hi = uhi.f;
}
}
return scalbn(sum.hi, scale);