[RS6000] rs6000_indirect_call_template

[RS6000] rs6000_indirect_call_template

Like the last patch for external calls, now handle most assembly code
for indirect calls in one place.  The patch also merges some insns,
correcting some !rs6000_speculate_indirect_jumps cases branching to
LR, which don't require a speculation barrier.

	* config/rs6000/rs6000-protos.h (rs6000_indirect_call_template),
	(rs6000_indirect_sibcall_template): Declare.
	* config/rs6000/rs6000.c (rs6000_indirect_call_template_1),
	(rs6000_indirect_call_template, rs6000_indirect_sibcall_template):
	New functions.
	* config/rs6000/rs6000.md (call_indirect_nonlocal_sysv),
	(call_value_indirect_nonlocal_sysv, sibcall_nonlocal_sysv),
	(call_indirect_aix, call_value_indirect_aix): Use
	rs6000_indirect_call_template and rs6000_indirect_sibcall_template.
	call_indirect_elfv2, call_value_indirect_elfv2): Likewise, and
	handle both speculation and non-speculation cases.
	(call_indirect_aix_nospec, call_value_indirect_aix_nospec): Delete.
	(call_indirect_elfv2_nospec, call_value_indirect_elfv2_nospec): Delete.

From-SVN: r266601