Revert "Update to FreeBSD libm r336523."
This reverts commit f86ee10278116d211cfb08679416444e0e714cb5.
Incorrect result for fmodf(3.0f, 0f) = 1.0f breaks ART tests.
Bug: 111710419
Test: art/test/testrunner/testrunner.py -b -t 436-rem-float --target
Change-Id: I7eae68fb92740db33415d16418447bcbbd98ecba
diff --git a/libm/upstream-freebsd/lib/msun/src/e_pow.c b/libm/upstream-freebsd/lib/msun/src/e_pow.c
index 411dd52..d088b41 100644
--- a/libm/upstream-freebsd/lib/msun/src/e_pow.c
+++ b/libm/upstream-freebsd/lib/msun/src/e_pow.c
@@ -10,7 +10,7 @@
*/
#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: head/lib/msun/src/e_pow.c 336362 2018-07-17 07:42:14Z bde $");
+__FBSDID("$FreeBSD: head/lib/msun/src/e_pow.c 326482 2017-12-03 01:56:03Z emaste $");
/* __ieee754_pow(x,y) return x**y
*
@@ -57,7 +57,6 @@
* to produce the hexadecimal values shown.
*/
-#include <float.h>
#include "math.h"
#include "math_private.h"
@@ -66,9 +65,6 @@
dp_h[] = { 0.0, 5.84962487220764160156e-01,}, /* 0x3FE2B803, 0x40000000 */
dp_l[] = { 0.0, 1.35003920212974897128e-08,}, /* 0x3E4CFDEB, 0x43CFD006 */
zero = 0.0,
-half = 0.5,
-qrtr = 0.25,
-thrd = 3.3333333333333331e-01, /* 0x3fd55555, 0x55555555 */
one = 1.0,
two = 2.0,
two53 = 9007199254740992.0, /* 0x43400000, 0x00000000 */
@@ -119,7 +115,7 @@
/* y!=zero: result is NaN if either arg is NaN */
if(ix > 0x7ff00000 || ((ix==0x7ff00000)&&(lx!=0)) ||
iy > 0x7ff00000 || ((iy==0x7ff00000)&&(ly!=0)))
- return nan_mix(x, y);
+ return (x+0.0)+(y+0.0);
/* determine if y is an odd int when x < 0
* yisint = 0 ... y is not an integer
@@ -201,7 +197,7 @@
/* now |1-x| is tiny <= 2**-20, suffice to compute
log(x) by x-x^2/2+x^3/3-x^4/4 */
t = ax-one; /* t has 20 trailing zeros */
- w = (t*t)*(half-t*(thrd-t*qrtr));
+ w = (t*t)*(0.5-t*(0.3333333333333333333333-t*0.25));
u = ivln2_h*t; /* ivln2_h has 21 sig. bits */
v = t*ivln2_l-w*ivln2;
t1 = u+v;
@@ -238,9 +234,9 @@
r = s2*s2*(L1+s2*(L2+s2*(L3+s2*(L4+s2*(L5+s2*L6)))));
r += s_l*(s_h+ss);
s2 = s_h*s_h;
- t_h = 3+s2+r;
+ t_h = 3.0+s2+r;
SET_LOW_WORD(t_h,0);
- t_l = r-((t_h-3)-s2);
+ t_l = r-((t_h-3.0)-s2);
/* u+v = ss*(1+...) */
u = s_h*t_h;
v = s_l*t_h+t_l*ss;
@@ -251,7 +247,7 @@
z_h = cp_h*p_h; /* cp_h+cp_l = 2/(3*log2) */
z_l = cp_l*p_h+p_l*cp+dp_l[k];
/* log2(ax) = (ss+..)*2/(3*log2) = n + dp_h + z_h + z_l */
- t = n;
+ t = (double)n;
t1 = (((z_h+z_l)+dp_h[k])+t);
SET_LOW_WORD(t1,0);
t2 = z_l-(((t1-t)-dp_h[k])-z_h);
@@ -308,7 +304,3 @@
else SET_HIGH_WORD(z,j);
return s*z;
}
-
-#if (LDBL_MANT_DIG == 53)
-__weak_reference(pow, powl);
-#endif