From e208f556cad11f729533385e46e4191fcc49aa0a Mon Sep 17 00:00:00 2001
From: Ulrich Drepper <drepper@redhat.com>
Date: Sun, 18 Feb 2001 19:52:52 +0000
Subject: Update.

2001-02-18  Ulrich Drepper  <drepper@redhat.com>

	* math/libm-test.inc (scalb_test): Require invalid exception being
	raised for invalid parameters.
	* sysdeps/i386/fpu/e_scalb.S: Raise invalid exception if necessary.
	* sysdeps/i386/fpu/e_scalbf.S: Likewise.
	* sysdeps/i386/fpu/e_scalbl.S: Likewise.
---
 sysdeps/i386/fpu/e_scalb.S  | 10 +++++++++-
 sysdeps/i386/fpu/e_scalbf.S | 10 +++++++++-
 sysdeps/i386/fpu/e_scalbl.S | 10 +++++++++-
 3 files changed, 27 insertions(+), 3 deletions(-)

(limited to 'sysdeps/i386')

diff --git a/sysdeps/i386/fpu/e_scalb.S b/sysdeps/i386/fpu/e_scalb.S
index f463002617..1596f6a700 100644
--- a/sysdeps/i386/fpu/e_scalb.S
+++ b/sysdeps/i386/fpu/e_scalb.S
@@ -56,7 +56,7 @@ ENTRY(__ieee754_scalb)
 	fcomp	%st(2)
 	fnstsw
 	sahf
-	jne	2f
+	jne	4f
 	fscale
 	fstp	%st(1)
 	ret
@@ -75,6 +75,7 @@ ENTRY(__ieee754_scalb)
 	fstp	%st
 	andl	$0x80000000, %edx
 	andl	$8, %eax
+	jnz	4f
 	shrl	$27, %edx
 	addl	%edx, %eax
 	fldl	MOX(zero_nan, %eax, 1)
@@ -95,4 +96,11 @@ ENTRY(__ieee754_scalb)
 	/* The first parameter is a NaN.  Return it.  */
 3:	fstp	%st(1)
 	ret
+
+	/* Return NaN and raise the invalid exception.  */
+4:	fstp	%st
+	fstp	%st
+	fldz
+	fdiv	%st
+	ret
 END(__ieee754_scalb)
diff --git a/sysdeps/i386/fpu/e_scalbf.S b/sysdeps/i386/fpu/e_scalbf.S
index 4b5b0d07b3..d41c29327d 100644
--- a/sysdeps/i386/fpu/e_scalbf.S
+++ b/sysdeps/i386/fpu/e_scalbf.S
@@ -58,7 +58,7 @@ ENTRY(__ieee754_scalbf)
 	fcomp	%st(2)
 	fnstsw
 	sahf
-	jne	2f
+	jne	4f
 	fscale
 	fstp	%st(1)
 	ret
@@ -77,6 +77,7 @@ ENTRY(__ieee754_scalbf)
 	fstp	%st
 	andl	$0x80000000, %edx
 	andl	$8, %eax
+	jnz	4f
 	shrl	$27, %edx
 	addl	%edx, %eax
 	fldl	MOX(zero_nan, %eax, 1)
@@ -97,4 +98,11 @@ ENTRY(__ieee754_scalbf)
 	/* The first parameter is a NaN.  Return it.  */
 3:	fstp	%st(1)
 	ret
+
+	/* Return NaN and raise the invalid exception.  */
+4:	fstp	%st
+	fstp	%st
+	fldz
+	fdiv	%st
+	ret
 END(__ieee754_scalbf)
diff --git a/sysdeps/i386/fpu/e_scalbl.S b/sysdeps/i386/fpu/e_scalbl.S
index e8166fa9d5..65644f8f0e 100644
--- a/sysdeps/i386/fpu/e_scalbl.S
+++ b/sysdeps/i386/fpu/e_scalbl.S
@@ -58,7 +58,7 @@ ENTRY(__ieee754_scalbl)
 	fcomp	%st(2)
 	fnstsw
 	sahf
-	jne	2f
+	jne	4f
 	fscale
 	fstp	%st(1)
 	ret
@@ -77,6 +77,7 @@ ENTRY(__ieee754_scalbl)
 	fstp	%st
 	andl	$0x8000, %edx
 	andl	$8, %eax
+	jnz	4f
 	shrl	$11, %edx
 	addl	%edx, %eax
 	fldl	MOX(zero_nan, %eax, 1)
@@ -97,4 +98,11 @@ ENTRY(__ieee754_scalbl)
 	/* The first parameter is a NaN.  Return it.  */
 3:	fstp	%st(1)
 	ret
+
+	/* Return NaN and raise the invalid exception.  */
+4:	fstp	%st
+	fstp	%st
+	fldz
+	fdiv	%st
+	ret
 END(__ieee754_scalbl)
-- 
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