Sun Niagara specific optimizations.

[gcc.git] / gcc / ChangeLog

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+2006-03-02  David S. Miller  <davem@sunset.davemloft.net>
+
+       Sun Niagara specific optimizations.
+       * config.gcc: Recognize niagara as target.
+       * config/sparc/sparc.h (SPARC_RELAXED_ORDERING): Mention Niagara.
+       (TARGET_CPU_niagara): Define.
+       (CPP_CPU64_DEFAULT_SPEC): Define __sparc_v9__ for Niagara.
+       (ASM_CPU64_DEFAULT_SPEC): Pass -Av9b for Niagara.
+       (CPP_CPU_SPEC): Handle -mcpu=niagara.
+       (ASM_CPU_SPEC): Likewise.
+       (PROCESSOR_NIAGARA): New enum entry.
+       (REGISTER_MOVE_COST): Handle Niagara.
+       (BRANCH_COST, PREFETCH_BLOCK, SIMULTANEOUS_PREFETCHES): Likewise.
+       * config/sparc/sparc.c (niagara_costs): New processor_costs entry.
+       (sparc_override_options): Recognize "niagara", set appropriate
+       default MASK_* values for it, and align functions to 32-bytes
+       by default just like ULTRASPARC/ULTRASPARC3.
+       (sparc_initialize_trampoline): Handle niagara like ultrasparc.
+       (sparc64_initialize_trampoline): Likewise.
+       (sparc_use_sched_lookahead): Use zero for niagara.
+       (sparc_issue_rate): Use one for niagara.
+       * config/sparc/niagara.md: New file.
+       * config/sparc/sparc.md: Include it.
+       * config/sparc/sol2-bi.h (CPP_CPU64_DEFAULT_SPEC,
+       ASM_CPU32_DEFAULT_SPEC, ASM_CPU64_DEFAULT_SPEC): Set appropriately
+       when default cpu is niagara.
+       (CPP_CPU_SPEC): Handle -mcpu=niagara.
+       (ASM_CPU_SPEC): Likewise.
+       * config/sparc/sol2.h (ASM_CPU_DEFAULT_SPEC): Set appropriately
+       when default cpu is niagara.
+       (ASM_CPU_SPEC): Handle -mcpu=niagara.
+       * config/sparc/linux64.h: Handle a default of TARGET_CPU_niagara
+       just like v9/ultrasparc/ultrasparc3.
+       * doc/invoke.texi: Add documentation for "niagara" and improve
+       existing documentation for ultrasparc variants.
+       
 2006-03-02  Diego Novillo  <dnovillo@redhat.com>
 
        * tree-ssa-operands.c (update_stmt_operands): Update documentation.