sparc.md (UNSPEC_EDGE8, [...]): New unspecs.

	* config/sparc/sparc.md (UNSPEC_EDGE8, UNSPEC_EDGE8L,
	UNSPEC_EDGE16, UNSPEC_EDGE16L, UNSPEC_EDGE32, UNSPEC_EDGE32L):
	New unspecs.
	(define_attr type): New type 'edge'.
	(edge8_vis, edge8l_vis, edge16_vis, edge16l_vis, edge32_vis,
	edge32l_vis): New patterns.
	* config/sparc/ultra1_2.md: Add insn reservation for 'edge'.
	* config/sparc/ultra3.md: Likewise.
	* config/sparc/niagara.md: Likewise.
	* config/sparc/niagara2.md: Likewise.
	* config/sparc/sparc.d (sparc_vis_init_builtins): Generate
	builtins for VIS edge instructions.
	* config/sparc/visintrin.h (__vis_edge8, __vis_edge8l)
	(__vis_edge16, __vis_edge16l, __vis_edge32, __vis_edge32l): New
	intrinsics.
	(__v8qi, __v4qi): Make unsigned.
	(__vis_faligndatadi, ___vis_faligndatav2si, __vis_faligndatav4hi,
	__vis_faligndatav8qi, __vis_fmul8x16au, __vis_fmul8x16al,
	__vis_fpack32): Fix types.
	* doc/extend.texi: Document new 'edge' VIS intrinsics.

From-SVN: r178931