re PR target/6496 (Sparc backend clobbers call-return stack of UltraSparc)

re PR target/6496 (Sparc backend clobbers call-return stack of UltraSparc)

2002-04-28  David S. Miller  <davem@redhat.com>

	PR target/6496
	* config/sparc/sparc.md (call followed by jump peephole): Do not
	match for TARGET_V9, kill TARGET_ARCH64 variants.

	PR target/6500
	* config/sparc/sparc.md (prefetch): Emit properly for 32-bit vs.
	64-bit TARGET_V9.  Do not use prefetch page, use prefetch for
	several {reads,writes} instead.
	* config/sparc/sparc.h (PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES):
	Define.

From-SVN: r52875