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585539a1e9
* config/s390/s390-protos.h (s390_load_got): Update prototype.
* config/s390/s390.c (struct machine_function): Add member base_reg.
(s390_decompose_address): Accept UNSPEC_LTREF. Simplify logic.
(s390_split_branches): Annotate late pool references.
(annotate_constant_pool_refs): New function.
(find_constant_pool_ref): Work on annotated pool references.
(replace_constant_pool_ref): Likewise. Use explicit base.
(replace_ltrel_base): Use explicit base.
(s390_mainpool_start): Reflect main_pool pattern change.
(s390_mainpool_finish): Use base register from main_pool.
Update calls to replace_ltrel_base and replace_constant_pool_ref.
(s390_chunkify_start): Use base_reg from struct machine_function.
(s390_chunkify_finish): Remove base_reg argument. Update calls
to replace_ltrel_base and replace_constant_pool_ref.
(s390_reorg): Don't decide upon base register. Update calls.
(s390_load_got): Remove MAYBE_DEAD handling. Do not emit insns
but return sequence instead.
(s390_emit_prologue): Decide upon base register to use. Annotate
all literal pool references. Adapt to main_pool pattern change.
Update s390_load_got call; move MAYBE_DEAD handling here.
(s390_emit_epilogue): Annotate late literal pool references.
Remove barrier before register restore instruction.
* config/s390/s390.md (UNSPEC_LTREF): New constant.
("builtin_setjmp_receiver"): Update s390_load_got call.
("main_pool"): Explicitly reference base register.
From-SVN: r83735
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