config.gcc (with_fpu): Allow --with-fpu=vfp3. ...
gcc/
* config.gcc (with_fpu): Allow --with-fpu=vfp3.
* config/arm/aout.h (REGISTER_NAMES): Add D16-D31.
* config/arm/aof.h (REGISTER_NAMES): Add D16-D31.
* config/arm/arm.c (FL_VFPV3): New flag for VFPv3 processor
capability.
(all_fpus): Add FPUTYPE_VFP3.
(fp_model_for_fpu): Add VFPv3 field.
(arm_rtx_costs_1): Give cost to VFPv3 constants.
(vfp3_const_double_index): New function. Return integer index of
VFPv3 constant suitable for fconst[sd] insns, or -1 if constant
isn't suitable.
(vfp3_const_double_rtx): New function. True if VFPv3 is enabled
and argument represents a valid RTX for a VFPv3 constant.
(vfp_output_fldmd): Split fldmd with > 16 registers in the list into
two instructions.
(vfp_emit_fstmd): Similar, for fstmd.
(arm_print_operand): Implement new code 'G' for VFPv3 floating-point
constants, represented as integer indices.
(arm_hard_regno_mode_ok): Use VFP_REGNO_OK_FOR_SINGLE,
VFP_REGNO_OK_FOR_DOUBLE macros.
(arm_regno_class): Handle VFPv3 d0-d7, low, high register split.
(arm_file_start): Set float-abi attribute for VFPv3, and output
correct ".fpu" assembler directive.
(arm_dbx_register_numbering): Add FIXME.
* config/arm/arm.h (TARGET_VFP3): New macro. Target supports VFPv3.
(fputype): Add FPUTYPE_VFP3.
(FIXED_REGISTERS): Add 32 registers for D16-D31.
(CALL_USED_REGISTERS): Likewise.
(CONDITIONAL_REGISTER_USAGE): Add note about conditional definition
of LAST_VFP_REGNUM. Make D16-D31 caller-saved, if present.
(LAST_VFP_REGNUM): Extend available VFP registers for VFPv3.
(D7_VFP_REGNUM): New.
(LAST_LO_VFP_REGNUM, FIRST_HI_VFP_REGNUM, LAST_HI_VFP_REGNUM)
(VFP_REGNO_OK_FOR_SINGLE, VFP_REGNO_OK_FOR_SINGLE)
(VFP_REGNO_OK_FOR_DOUBLE): Define new macros.
(FIRST_PSEUDO_REGISTER): Shift up to 128 to accommodate VFPv3.
(REG_ALLOC_ORDER): Adjust for VFPv3.
(reg_class): Add VFP_D0_D7_REGS, VFP_LO_REGS, VFP_HI_REGS.
(REG_CLASS_NAMES): Add entries corresponding to VFP_D0_D7_REGS,
VFP_LO_REGS, VFP_HI_REGS.
(REG_CLASS_CONTENTS): Likewise. Extend contents for VFP_REGS.
(IS_VFP_CLASS): Define macro.
(SECONDARY_OUTPUT_RELOAD_CLASS, SECONDARY_INPUT_RELOAD_CLASS): Use
IS_VFP_CLASS.
(REGISTER_MOVE_COST): Likewise.
* config/arm/arm-protos.h (vfp3_const_double_rtx): Add prototype.
* config/arm/vfp.md (VFPCC_REGNUM): Redefine as 127.
(*arm_movsi_vfp, *thumb2_movsi_vfp, *movsfcc_vfp)
(*thumb2_movsfcc_vfp, *abssf2_vfp, *negsf2_vfp, *addsf3_vfp)
(*subsf3_vfp, *divsf_vfp, *mulsf_vfp, *mulsf3negsf_vfp)
(*mulsf3addsf_vfp, *mulsf3subsf_vfp, *mulsf3negsfaddsf_vfp)
(*extendsfdf2_vfp, *truncdfsf2_vfp, *truncsisf2_vfp)
(*truncsidf2_vfp, fixuns_truncsfsi2, fixuns_truncdfsi2)
(*floatsisf2_vfp, *floatsidf2_vfp, floatunssisf2)
(floatunssidf2, *sqrtsf2_vfp, *cmpsf_split_vfp)
(*cmpsf_trap_split_vfp, *cmpsf_vfp, *cmpsf_trap_vfp): Use 't'
where appropriate for single-word registers.
(*movsf_vfp, *thumb2_movsf_vfp, *movdf_vfp, *thumb2_movdf_vfp):
As above. Fix type attributes.
* config/arm/constraints.md (register_contraint "t"): Define.
(register_constraint "w"): Change to D0-D15, or D0-D31 for
VFPv3/NEON.
(register_constraint "x"): Define.
(constraint "Dv"): Define.
From-SVN: r126272
f1adb0a9f4