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	* config/sparc/sparc.c (sparc_compare_emitted): New variable.
	(gen_compare_reg): If sparc_compare_emitted is set, clear it
	and return its previous value.
	(emit_v9_brxx_insn): Assert sparc_compare_emitted is NULL.
	* config/sparc/sparc.md (UNSPEC_SP_SET, UNSPEC_SP_TEST): New
	constants.
	(stack_protect_set, stack_protect_test): New expanders.
	(stack_protect_setsi, stack_protect_setdi, stack_protect_testsi,
	stack_protect_testdi): New insns.
	* config/sparc/linux.h (TARGET_THREAD_SSP_OFFSET): Define.
	* config/sparc/linux64.h (TARGET_THREAD_SSP_OFFSET): Define.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101653 138bc75d-0d04-0410-961f-82ee72b054a4