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path: root/sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c
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Diffstat (limited to 'sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c')
-rw-r--r--sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c b/sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c
index a9373ff822..cf655fad16 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_nexttowardf.c
@@ -19,8 +19,9 @@ static char rcsid[] = "$NetBSD: $";
#endif
#include "math.h"
-#include "math_private.h"
+#include <math_private.h>
#include <math_ldbl_opt.h>
+#include <float.h>
#ifdef __STDC__
float __nexttowardf(float x, long double y)
@@ -46,10 +47,12 @@ static char rcsid[] = "$NetBSD: $";
return x+y;
if((long double) x==y) return y; /* x=y, return y */
if(ix==0) { /* x == 0 */
- float x2;
+ float u;
SET_FLOAT_WORD(x,(u_int32_t)((hy>>32)&0x80000000)|1);/* return +-minsub*/
- x2 = x*x;
- if(x2==x) return x2; else return x; /* raise underflow flag */
+ u = math_opt_barrier (x);
+ u = u * u;
+ math_force_eval (u); /* raise underflow flag */
+ return x;
}
if(hx>=0) { /* x > 0 */
if(hy<0||(ix>>23)>(iy>>52)-0x380
@@ -69,13 +72,16 @@ static char rcsid[] = "$NetBSD: $";
}
}
hy = hx&0x7f800000;
- if(hy>=0x7f800000) return x+x; /* overflow */
+ if(hy>=0x7f800000) {
+ x = x+x; /* overflow */
+ if (FLT_EVAL_METHOD != 0)
+ /* Force conversion to float. */
+ asm ("" : "+m"(x));
+ return x;
+ }
if(hy<0x00800000) { /* underflow */
- float x2 = x*x;
- if(x2!=x) { /* raise underflow flag */
- SET_FLOAT_WORD(x2,hx);
- return x2;
- }
+ float u = x*x;
+ math_force_eval (u); /* raise underflow flag */
}
SET_FLOAT_WORD(x,hx);
return x;