* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Use

	math_opt_barrier and math_force_eval macros.

5 files changed, 43 insertions, 38 deletions

diff --git a/ChangeLog b/ChangeLog
index f38e61d929..fed20cef1c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2007-04-01  Jakub Jelinek  <jakub@redhat.com>
+
+	* sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c (__nextafterl): Use
+	math_opt_barrier and math_force_eval macros.
+
 2007-03-27  Jakub Jelinek  <jakub@redhat.com>
 
 	[BZ #3306]
diff --git a/sysdeps/i386/fpu/s_nextafterl.c b/sysdeps/i386/fpu/s_nextafterl.c
index 5b617cb4e7..aef0a144e5 100644
--- a/sysdeps/i386/fpu/s_nextafterl.c
+++ b/sysdeps/i386/fpu/s_nextafterl.c
@@ -27,7 +27,7 @@ static char rcsid[] = "$NetBSD: $";
  */
 
 #include "math.h"
-#include "math_private.h"
+#include <math_private.h>
 
 #ifdef __STDC__
 	long double __nextafterl(long double x, long double y)
@@ -52,9 +52,12 @@ static char rcsid[] = "$NetBSD: $";
 	   return x+y;
 	if(x==y) return y;		/* x=y, return y */
 	if((ix|hx|lx)==0) {			/* x == 0 */
+	    long double u;
 	    SET_LDOUBLE_WORDS(x,esy&0x8000,0,1);/* return +-minsubnormal */
-	    y = x*x;
-	    if(y==x) return y; else return x;	/* raise underflow flag */
+	    u = math_opt_barrier (x);
+	    u = u * u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
 	}
 	if(esx>=0) {			/* x > 0 */
 	    if(esx>esy||((esx==esy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
@@ -109,12 +112,9 @@ static char rcsid[] = "$NetBSD: $";
 	}
 	esy = esx&0x7fff;
 	if(esy==0x7fff) return x+x;	/* overflow  */
-	if(esy==0) {			/* underflow */
-	    y = x*x;
-	    if(y!=x) {		/* raise underflow flag */
-	        SET_LDOUBLE_WORDS(y,esx,hx,lx);
-		return y;
-	    }
+	if(esy==0) {
+	    long double u = x*x;		/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
 	}
 	SET_LDOUBLE_WORDS(x,esx,hx,lx);
 	return x;
diff --git a/sysdeps/ieee754/ldbl-128/s_nextafterl.c b/sysdeps/ieee754/ldbl-128/s_nextafterl.c
index d3df668178..7bc869a518 100644
--- a/sysdeps/ieee754/ldbl-128/s_nextafterl.c
+++ b/sysdeps/ieee754/ldbl-128/s_nextafterl.c
@@ -25,7 +25,7 @@ static char rcsid[] = "$NetBSD: $";
  */
 
 #include "math.h"
-#include "math_private.h"
+#include <math_private.h>
 
 #ifdef __STDC__
 	long double __nextafterl(long double x, long double y)
@@ -47,9 +47,12 @@ static char rcsid[] = "$NetBSD: $";
 	   return x+y;
 	if(x==y) return y;		/* x=y, return y */
 	if((ix|lx)==0) {			/* x == 0 */
+	    long double u;
 	    SET_LDOUBLE_WORDS64(x,hy&0x8000000000000000ULL,1);/* return +-minsubnormal */
-	    y = x*x;
-	    if(y==x) return y; else return x;	/* raise underflow flag */
+	    u = math_opt_barrier (x);
+	    u = u * u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
 	}
 	if(hx>=0) {			/* x > 0 */
 	    if(hx>hy||((hx==hy)&&(lx>ly))) {	/* x > y, x -= ulp */
@@ -70,12 +73,9 @@ static char rcsid[] = "$NetBSD: $";
 	}
 	hy = hx&0x7fff000000000000LL;
 	if(hy==0x7fff000000000000LL) return x+x;/* overflow  */
-	if(hy==0) {				/* underflow */
-	    y = x*x;
-	    if(y!=x) {		/* raise underflow flag */
-	        SET_LDOUBLE_WORDS64(y,hx,lx);
-		return y;
-	    }
+	if(hy==0) {
+	    long double u = x*x;		/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
 	}
 	SET_LDOUBLE_WORDS64(x,hx,lx);
 	return x;
diff --git a/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c b/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c
index e35ce50829..4f8aa7dec1 100644
--- a/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c
+++ b/sysdeps/ieee754/ldbl-128ibm/s_nextafterl.c
@@ -24,8 +24,8 @@ static char rcsid[] = "$NetBSD: $";
  *   Special cases:
  */
 
-#include "math.h"
-#include "math_private.h"
+#include <math.h>
+#include <math_private.h>
 #include <math_ldbl_opt.h>
 
 #ifdef __STDC__
@@ -53,9 +53,12 @@ static char rcsid[] = "$NetBSD: $";
 	if(x==y)
 	    return y;		/* x=y, return y */
 	if(ihx == 0 && ilx == 0) {			/* x == 0 */
+	    long double u;
 	    SET_LDOUBLE_WORDS64(x,hy&0x8000000000000000ULL,1);/* return +-minsubnormal */
-	    y = x*x;
-	    if(y==x) return y; else return x;	/* raise underflow flag */
+	    u = math_opt_barrier (u);
+	    u = u * u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
 	}
 	if(ihx>=0) {			/* x > 0 */
 	    if(ihx>ihy||((ihx==ihy)&&(ilx>ily))) {	/* x > y, x -= ulp */
@@ -93,12 +96,9 @@ static char rcsid[] = "$NetBSD: $";
 	}
 	hy = hx&0x7ff0000000000000LL;
 	if(hy==0x7ff0000000000000LL) return x+x;/* overflow  */
-	if(hy==0) {				/* underflow */
-	    y = x*x;
-	    if(y!=x) {		/* raise underflow flag */
-	        SET_LDOUBLE_WORDS64(y,hx,lx);
-		return y;
-	    }
+	if(hy==0) {
+	    long double u = x * x;		/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
 	}
 	SET_LDOUBLE_WORDS64(x,hx,lx);
 	return x;
diff --git a/sysdeps/ieee754/ldbl-96/s_nextafterl.c b/sysdeps/ieee754/ldbl-96/s_nextafterl.c
index 1798261b28..ed0877d6dd 100644
--- a/sysdeps/ieee754/ldbl-96/s_nextafterl.c
+++ b/sysdeps/ieee754/ldbl-96/s_nextafterl.c
@@ -26,7 +26,7 @@ static char rcsid[] = "$NetBSD: $";
  */
 
 #include "math.h"
-#include "math_private.h"
+#include <math_private.h>
 
 #ifdef __STDC__
 	long double __nextafterl(long double x, long double y)
@@ -48,9 +48,12 @@ static char rcsid[] = "$NetBSD: $";
 	   return x+y;
 	if(x==y) return y;		/* x=y, return y */
 	if((ix|hx|lx)==0) {			/* x == 0 */
+	    long double u;
 	    SET_LDOUBLE_WORDS(x,esy&0x8000,0,1);/* return +-minsubnormal */
-	    y = x*x;
-	    if(y==x) return y; else return x;	/* raise underflow flag */
+	    u = math_opt_barrier (x);
+	    u = u * u;
+	    math_force_eval (u);		/* raise underflow flag */
+	    return x;
 	}
 	if(esx<0x8000) {			/* x > 0 */
 	    if(ix>iy||((ix==iy) && (hx>hy||((hx==hy)&&(lx>ly))))) {
@@ -85,13 +88,10 @@ static char rcsid[] = "$NetBSD: $";
 	    }
 	}
 	esy = esx&0x7fff;
-	if(esy==0x7fff) return x+x;	/* overflow  */
-	if(esy==0) {			/* underflow */
-	    y = x*x;
-	    if(y!=x) {		/* raise underflow flag */
-	        SET_LDOUBLE_WORDS(y,esx,hx,lx);
-		return y;
-	    }
+	if(esy==0x7fff) return x+x;		/* overflow  */
+	if(esy==0) {
+	    long double u = x*x;		/* underflow */
+	    math_force_eval (u);		/* raise underflow flag */
 	}
 	SET_LDOUBLE_WORDS(x,esx,hx,lx);
 	return x;