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diff --git a/sysdeps/x86_64/fpu/s_sinl.S b/sysdeps/x86_64/fpu/s_sinl.S
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+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ * Adapted for x86-64 by Andreas Jaeger <aj@suse.de>.
+ */
+
+#include <machine/asm.h>
+
+ENTRY(__sinl)
+	fldt	8(%rsp)
+	fsin
+	fnstsw	%ax
+	testl	$0x400,%eax
+	jnz	1f
+	ret
+	.align ALIGNARG(4)
+1:	fldpi
+	fadd	%st(0)
+	fxch	%st(1)
+2:	fprem1
+	fnstsw	%ax
+	testl	$0x400,%eax
+	jnz	2b
+	fstp	%st(1)
+	fsin
+	ret
+END (__sinl)
+weak_alias (__sinl, sinl)