backport: re PR target/46915 (Wrong code is generated for conditional branch followed...

backport: re PR target/46915 (Wrong code is generated for conditional branch followed by zero length asm)

	Backport from mainline:
	2010-12-18  John David Anglin  <dave.anglin@nrc-cnrc.gc.ca>

	PR target/46915
	* config/pa/pa.c (branch_to_delay_slot_p): Use next_active_insn instead
	of next_real_insn.  Search forward checking for both ASM_INPUT and
	ASM_OPERANDS asms until exit condition is found.
	(branch_needs_nop_p): Likewise.
	(use_skip_p): New function.
	(output_cbranch): Use use_skip_p.
	(output_bb, output_bvb): Likewise.

From-SVN: r168072