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* doc/invoke.texi: Document -mvr4130-align. * config/mips/mips.h (MASK_VR4130_ALIGN, TARGET_VR4130_ALIGN) (TUNE_MIPS4120, TUNE_MIPS4130): New macros. (TUNE_MACC_CHAINS): Include TUNE_MIPS4120 and TUNE_MIPS4130. (TARGET_SWITCHES): Add -mvr4130-align and -mno-vr4130-align. * config/mips/mips.md: Include sched-int.h. (USEFUL_INSN_P, SEQ_BEGIN, SEQ_END, FOR_EACH_SUBINSN): New macros. (mips_rtx_costs): Set integer multiplication costs for TUNE_MIPS4130. (override_options): Enable -mvr4130-align at -O3 and above. (mips_sim_insn): New variable. (mips_sim): New structure. (mips_sim_reset, mips_sim_init, mips_sim_next_cycle, mips_sim_wait_reg) (mips_sim_wait_regs_2, mips_sim_wait_regs_1, mips_sim_wait_regs) (mips_sim_wait_units, mips_sim_wait_insn, mips_sim_record_set) (mips_sim_issue_insn, mips_sim_issue_nop, mips_sim_finish_insn) (vr4130_avoid_branch_rt_conflict, vr4130_align_insns): New functions. (mips_reorg): Call vr4130_align_insns. (vr4130_last_insn): New variable. (vr4130_true_reg_dependence_p_1, vr4130_true_reg_dependence_p) (vr4130_swap_insns_p, vr4130_reorder): New functions. (mips_sched_reorder, mips_variable_issue): Hook in vr4130 code. (mips_issue_rate): Return 2 for PROCESSOR_R4130. (mips_use_dfa_pipeline_interface): Return true for the same. * config/mips/4130.md: New file. * config/mips/mips.md: Include it. Add a peephole2 to convert "mult;mflo" into "mtlo;macc". (*macc, *umul_acc_di, *smul_acc_di): Use $1 rather than $0 as the target of maccs. (*msac_using_macc): New pattern. From-SVN: r81567
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