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2007-10-18 David S. Miller <davem@davemloft.net>
Add Niagara-2 support.
* doc/invoke.texi: Document -m{cpu,tune}=niagara2.
* config.gcc: Add niagara2 to cpu and tune lists for sparc.
* config/sparc/sparc.md (sparc_cpu_attr): Add niagara2.
(include): Add inclusion of niagara2.md
* config/sparc/sparc.c (niagara2_costs): New.
(sparc_override_options): Add niagara2 entry to cpu_default[]
and cpu_table[]. Set align_functions to 32 on Niagara2. Use
niagara2_costs when PROCESSOR_NIAGARA2. Handle Niagara2 for
PARAM_SIMULTANEOUS_PREFETCHES and PARAM_L1_CACHE_LINE_SIZE.
(sparc_initialize_trampoline): Handle niagara2 like niagara.
(sparc64_initialize_trampoline): Likewise.
(sparc_use_sched_lookahead): Likewise.
(sparc_issue_rate): Likewise.
* config/sparc/sol2-bi.h: Handle TARGET_CPU_niagara2 and
mcpu=niagara2
* config/sparc/sparc.h (TARGET_CPU_niagara2): Define.
({CPP,ASM}_CPU64_DEFAULT_SPEC): Set appropriately for
TARGET_CPU_niagara2.
(PROCESSOR_NIAGARA2): New.
(REGISTER_MOVE_COST): Handle PROCESSOR_NIAGARA2.
(BRANCH_COST): Likewise.
* config/sparc/linux64.h: Handle TARGET_CPU_niagara2.
* config/sparc/sol2.h: Likewise.
* config/sparc/niagara2.md: New file.
From-SVN: r129472
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