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Diffstat (limited to 'sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c')
-rw-r--r--sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c28
1 files changed, 10 insertions, 18 deletions
diff --git a/sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c b/sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c
index 68027f26fa..d52526f719 100644
--- a/sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c
+++ b/sysdeps/ieee754/ldbl-opt/s_nexttowardfd.c
@@ -20,10 +20,7 @@
* Special cases:
*/
-#include <math.h>
-#include <math_private.h>
#include <math_ldbl_opt.h>
-#include <float.h>
float __nldbl_nexttowardf(float x, double y);
@@ -42,12 +39,10 @@ float __nldbl_nexttowardf(float x, double y)
return x+y;
if((double) x==y) return y; /* x=y, return y */
if(ix==0) { /* x == 0 */
- float u;
+ float x2;
SET_FLOAT_WORD(x,(u_int32_t)(hy&0x80000000)|1);/* return +-minsub*/
- u = math_opt_barrier (x);
- u = u * u;
- math_force_eval (u); /* raise underflow flag */
- return x;
+ x2 = x*x;
+ if(x2==x) return x2; else return x; /* raise underflow flag */
}
if(hx>=0) { /* x > 0 */
if(hy<0||(ix>>23)>(iy>>20)-0x380
@@ -65,16 +60,13 @@ float __nldbl_nexttowardf(float x, double y)
hx += 1;
}
hy = hx&0x7f800000;
- if(hy>=0x7f800000) {
- x = x+x; /* overflow */
- if (FLT_EVAL_METHOD != 0)
- /* Force conversion to float. */
- asm ("" : "+m"(x));
- return x;
- }
- if(hy<0x00800000) {
- float u = x*x; /* underflow */
- math_force_eval (u); /* raise underflow flag */
+ if(hy>=0x7f800000) return x+x; /* overflow */
+ if(hy<0x00800000) { /* underflow */
+ float x2 = x*x;
+ if(x2!=x) { /* raise underflow flag */
+ SET_FLOAT_WORD(x2,hx);
+ return x2;
+ }
}
SET_FLOAT_WORD(x,hx);
return x;