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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /sysdeps/i386/fpu/s_nexttowardf.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'sysdeps/i386/fpu/s_nexttowardf.c')
-rw-r--r--sysdeps/i386/fpu/s_nexttowardf.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/sysdeps/i386/fpu/s_nexttowardf.c b/sysdeps/i386/fpu/s_nexttowardf.c
index 25f70e4f4d..3fbe53c338 100644
--- a/sysdeps/i386/fpu/s_nexttowardf.c
+++ b/sysdeps/i386/fpu/s_nexttowardf.c
@@ -19,8 +19,7 @@ static char rcsid[] = "$NetBSD: $";
 #endif
 
 #include "math.h"
-#include <math_private.h>
-#include <float.h>
+#include "math_private.h"
 
 #ifdef __STDC__
 	float __nexttowardf(float x, long double y)
@@ -45,12 +44,10 @@ static char rcsid[] = "$NetBSD: $";
 	   return x+y;
 	if((long double) x==y) return y;	/* x=y, return y */
 	if(ix==0) {				/* x == 0 */
-	    float u;
+	    float x2;
 	    SET_FLOAT_WORD(x,((esy&0x8000)<<16)|1);/* return +-minsub*/
-	    u = math_opt_barrier (x);
-	    u = u * u;
-	    math_force_eval (u);		/* raise underflow flag */
-	    return x;
+	    x2 = x*x;
+	    if(x2==x) return x2; else return x;	/* raise underflow flag */
 	}
 	if(hx>=0) {				/* x > 0 */
 	    if(esy>=0x8000||((ix>>23)&0xff)>iy-0x3f80
@@ -72,14 +69,16 @@ static char rcsid[] = "$NetBSD: $";
 	hy = hx&0x7f800000;
 	if(hy>=0x7f800000) {
 	  x = x+x;	/* overflow  */
-	  if (FLT_EVAL_METHOD != 0)
-	    /* Force conversion to float.  */
-	    asm ("" : "+m"(x));
+	  /* Force conversion to float.  */
+	  asm ("" : "=m"(x) : "m"(x));
 	  return x;
 	}
-	if(hy<0x00800000) {
-	    float u = x*x;			/* underflow */
-	    math_force_eval (u);		/* raise underflow flag */
+	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;