From: Ulrich Drepper <drepper@redhat.com>
Date: Mon, 17 Mar 1997 04:04:45 +0000 (+0000)
Subject: Optimize branch code.
X-Git-Tag: cvs/glibc-2_0_4~26
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=421dcdf3a9b3571357f682c1cbe18f73f8fbb430;p=thirdparty%2Fglibc.git

Optimize branch code.
---

diff --git a/sysdeps/libm-i387/e_log.S b/sysdeps/libm-i387/e_log.S
index e7f567d9506..c7cacdfb0a7 100644
--- a/sysdeps/libm-i387/e_log.S
+++ b/sysdeps/libm-i387/e_log.S
@@ -47,8 +47,8 @@ ENTRY(__ieee754_log)
 	fabs			// |x-1| : x-1 : x : log(2)
 	fcompl	MO(limit)	// x-1 : x : log(2)
 	fnstsw			// x-1 : x : log(2)
-	sahf
-	ja	2f
+	andb	$0x45, %ah
+	jz	2f
 	fstp	%st(1)		// x-1 : log(2)
 	fyl2xp1			// log(x)
 	ret
diff --git a/sysdeps/libm-i387/e_log10.S b/sysdeps/libm-i387/e_log10.S
index ecb691b9054..2c8488c3a94 100644
--- a/sysdeps/libm-i387/e_log10.S
+++ b/sysdeps/libm-i387/e_log10.S
@@ -47,8 +47,8 @@ ENTRY(__ieee754_log10)
 	fabs			// |x-1| : x-1 : x : log10(2)
 	fcompl	MO(limit)	// x-1 : x : log10(2)
 	fnstsw			// x-1 : x : log10(2)
-	sahf
-	ja	2f
+	andb	$0x45, %ah
+	jz	2f
 	fstp	%st(1)		// x-1 : log10(2)
 	fyl2xp1			// log10(x)
 	ret
diff --git a/sysdeps/libm-i387/e_log10f.S b/sysdeps/libm-i387/e_log10f.S
index aac58d02935..2c07161085c 100644
--- a/sysdeps/libm-i387/e_log10f.S
+++ b/sysdeps/libm-i387/e_log10f.S
@@ -48,8 +48,8 @@ ENTRY(__ieee754_log10f)
 	fabs			// |x-1| : x-1 : x : log10(2)
 	fcompl	MO(limit)	// x-1 : x : log10(2)
 	fnstsw			// x-1 : x : log10(2)
-	sahf
-	ja	2f
+	andb	$0x45, %ah
+	jz	2f
 	fstp	%st(1)		// x-1 : log10(2)
 	fyl2xp1			// log10(x)
 	ret
diff --git a/sysdeps/libm-i387/e_log10l.S b/sysdeps/libm-i387/e_log10l.S
index 4f51818bddf..6fe7c5a6f78 100644
--- a/sysdeps/libm-i387/e_log10l.S
+++ b/sysdeps/libm-i387/e_log10l.S
@@ -49,8 +49,8 @@ ENTRY(__ieee754_log10l)
 	fabs			// |x-1| : x-1 : x : log10(2)
 	fcompl	MO(limit)	// x-1 : x : log10(2)
 	fnstsw			// x-1 : x : log10(2)
-	sahf
-	ja	2f
+	andb	$0x45, %ah
+	jz	2f
 	fstp	%st(1)		// x-1 : log10(2)
 	fyl2xp1			// log10(x)
 	ret
diff --git a/sysdeps/libm-i387/e_logf.S b/sysdeps/libm-i387/e_logf.S
index 4459b7fc087..bdba1d32254 100644
--- a/sysdeps/libm-i387/e_logf.S
+++ b/sysdeps/libm-i387/e_logf.S
@@ -48,8 +48,8 @@ ENTRY(__ieee754_logf)
 	fabs			// |x-1| : x-1 : x : log(2)
 	fcompl	MO(limit)	// x-1 : x : log(2)
 	fnstsw			// x-1 : x : log(2)
-	sahf
-	ja	2f
+	andb	$0x45, %ah
+	jz	2f
 	fstp	%st(1)		// x-1 : log(2)
 	fyl2xp1			// log(x)
 	ret
diff --git a/sysdeps/libm-i387/e_logl.S b/sysdeps/libm-i387/e_logl.S
index 08447a27e74..bda3ea508e3 100644
--- a/sysdeps/libm-i387/e_logl.S
+++ b/sysdeps/libm-i387/e_logl.S
@@ -48,8 +48,8 @@ ENTRY(__ieee754_logl)
 	fabs			// |x-1| : x-1 : x : log(2)
 	fcompl	MO(limit)	// x-1 : x : log(2)
 	fnstsw			// x-1 : x : log(2)
-	sahf
-	ja	2f
+	andb	$0x45, %ah
+	jz	2f
 	fstp	%st(1)		// x-1 : log(2)
 	fyl2xp1			// log(x)
 	ret