r207605 - in /trunk/gcc: ChangeLog config/s390/...

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Fri Feb  7 14:52:26 2014
New Revision: 207605

URL: http://gcc.gnu.org/viewcvs?rev=207605&root=gcc&view=rev
Log:
gcc/
	* config/s390/s390-protos.h (s390_can_use_simple_return_insn)
	(s390_can_use_return_insn): Declare.
	* config/s390/s390.h (EPILOGUE_USES): Define.
	* config/s390/s390.c (s390_mainpool_start): Allow two main_pool
	instructions.
	(s390_chunkify_start): Handle return JUMP_LABELs.
	(s390_early_mach): Emit a main_pool instruction on the entry edge.
	(s300_set_up_by_prologue, s390_can_use_simple_return_insn)
	(s390_can_use_return_insn): New functions.
	(s390_fix_long_loop_prediction): Handle conditional returns.
	(TARGET_SET_UP_BY_PROLOGUE): Define.
	* config/s390/s390.md (ANY_RETURN): New code iterator.
	(*creturn, *csimple_return, return, simple_return): New patterns.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/s390/s390-protos.h
    trunk/gcc/config/s390/s390.c
    trunk/gcc/config/s390/s390.h
    trunk/gcc/config/s390/s390.md