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-rw-r--r--sysdeps/libm-i387/e_acoshl.S3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/libm-i387/e_acoshl.S b/sysdeps/libm-i387/e_acoshl.S
index b0fa45c44e..0c81daaebe 100644
--- a/sysdeps/libm-i387/e_acoshl.S
+++ b/sysdeps/libm-i387/e_acoshl.S
@@ -1,5 +1,5 @@
 /* ix87 specific implementation of arcsinh.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -49,6 +49,7 @@ limit:	.double 0.29
 	.text
 ENTRY(__ieee754_acoshl)
 	movl	12(%esp), %ecx
+	andl	$0xffff, %ecx
 	cmpl	$0x3fff, %ecx
 	jl	5f			// < 1 => invalid
 	fldln2				// log(2)