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Use mantissa_t in mpexp

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Siddhesh Poyarekar 2013-04-02 17:53:09 +05:30
parent 92e3664bb5
commit e7906a4789
3 changed files with 7 additions and 3 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2013-04-02 Siddhesh Poyarekar <siddhesh@redhat.com>
* sysdeps/ieee754/dbl-64/mpa.h (HALFRAD): Define as TWO23.
* sysdeps/ieee754/dbl-64/mpexp.c (__mpexp): Use mantissa_t.
* bench/Makefile (bench): Add sin and slowsin.
* benchtests/sin-inputs: New file.
* benchtests/slowsin-inputs: New file.

3
sysdeps/ieee754/dbl-64/mpa.h
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@ -100,6 +100,8 @@ extern const mp_no mptwo;
#define TWO19 TWOPOW (19) /* 2^19 */
#define TWO23 TWOPOW (23) /* 2^23 */
#define HALFRAD TWO23
#define TWO57 0x1.0p57 /* 2^57 */
#define TWO71 0x1.0p71 /* 2^71 */
#define TWOM1032 0x1.0p-1032 /* 2^-1032 */
@ -107,7 +109,6 @@ extern const mp_no mptwo;
#define HALF 0x1.0p-1 /* 1/2 */
#define MHALF -0x1.0p-1 /* -1/2 */
#define HALFRAD 0x1.0p23 /* 2^23 */
int __acr (const mp_no *, const mp_no *, int);
void __cpy (const mp_no *, mp_no *, int);

4
sysdeps/ieee754/dbl-64/mpexp.c
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@ -43,7 +43,7 @@ SECTION
__mpexp (mp_no *x, mp_no *y, int p)
{
int i, j, k, m, m1, m2, n;
double b;
mantissa_t b;
static const int np[33] =
{
0, 0, 0, 0, 3, 3, 4, 4, 5, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 6,
@ -80,7 +80,7 @@ __mpexp (mp_no *x, mp_no *y, int p)
b = X[1];
m2 = 24 * EX;
for (; b < HALFRAD; m2--)
b *= TWO;
b *= 2;
if (b == HALFRAD)
{
for (i = 2; i <= p; i++)