* config/sparc/sparc.h (sparc_compare_emitted): New extern.
* 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.
From-SVN: r101653
