From eae47a361821b60ad4274feae1d6e3fa4572cd0a Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 14 Mar 2012 16:29:47 -0700
Subject: Add framework for using sparc VIS3 instructions, use it for
 copysign/signbit.

	* sysdeps/sparc/configure.in: New file.
	* sysdeps/sparc/configure: Generate.
	* configure.in (libc_cv_sparc_as_vis3): Substitute.
	* configure: Regenerate.
	* config.h.in (HAVE_AS_VIS3_SUPPORT): New.
	* config.make.in (have-as-vis3): New.
	* sysdeps/sparc/sparc32/sparcv9/Makefile (ASFLAGS-*): If VIS3 is
	available use -Av9d instead of -Av9a.
	* sysdeps/sparc/sparc64/Makefile: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: New file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign-vis3.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf-vis3.S: New file.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/Makefile: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit-vis3.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf-vis3.S: New file.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S: New file.
---
 .../sparc32/sparcv9/fpu/multiarch/s_copysignf.S    | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S

(limited to 'sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S')

diff --git a/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S
new file mode 100644
index 0000000000..4d055f2df5
--- /dev/null
+++ b/sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S
@@ -0,0 +1,46 @@
+#include <sysdep.h>
+
+	.text
+ENTRY(__copysignf)
+	.type	__copysignf, @gnu_indirect_function
+# ifdef SHARED
+	SETUP_PIC_REG_LEAF(o3, o5)
+# endif
+# ifdef HAVE_AS_VIS3_SUPPORT
+	set	HWCAP_SPARC_VIS3, %o1
+	andcc	%o0, %o1, %g0
+	be	9f
+	 nop
+#  ifdef SHARED
+	sethi	%gdop_hix22(__copysignf_vis3), %o1
+	xor	%o1, %gdop_lox10(__copysignf_vis3), %o1
+#  else
+	set	__copysignf_vis3, %o1
+#  endif
+	ba	10f
+	 nop
+9:
+# endif
+# ifdef SHARED
+	sethi	%gdop_hix22(__copysignf_generic), %o1
+	xor	%o1, %gdop_lox10(__copysignf_generic), %o1
+# else
+	set	__copysignf_generic, %o1
+# endif
+# ifdef HAVE_AS_VIS3_SUPPORT
+10:
+# endif
+# ifdef SHARED
+	add	%o3, %o1, %o1
+# endif
+	retl
+	 mov	%o1, %o0
+END(__copysignf)
+weak_alias (__copysignf, copysignf)
+
+# undef weak_alias
+# define weak_alias(a, b)
+
+#define __copysignf __copysignf_generic
+
+#include "../../../fpu/s_copysignf.S"
-- 
cgit 1.4.1