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gcc/gcc/config/arm vfp.md

From: pbrook at gcc dot gnu dot org
To: gcc-cvs at gcc dot gnu dot org
Date: 30 Jan 2004 16:15:19 -0000
Subject: gcc/gcc/config/arm vfp.md

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	csl-arm-branch
Changes by:	pbrook@gcc.gnu.org	2004-01-30 16:15:19

Added files:
	gcc/config/arm : vfp.md 

Log message:
	2004-01-30  Paul Brook  <paul@codesourcery.com>
	
	* aof.h (REGISTER_NAMES): Add vfp reg names
	(ADDITIONAL_REGISTER_NAMES): Ditto.
	* aout.h (REGISTER_NAMES): Ditto.
	(ADDITIONAL_REGISTER_NAMES): Ditto.
	* arm-protos.h: Update/Add Prototypes.
	* arm.c (init_fp_table): Rename from init_fpa_table. Update users.
	Only allow 0.0 for VFP.
	(fp_consts_inited): Rename from fpa_consts_inited.  Update users.
	(values_fp): Rename from values_fpa.  Update Users.
	(arm_const_double_rtx): Rename from const_double_rtx_ok_for_fpa.
	Update users.  Only check valid constants for this hardware.
	(arm_float_rhs_operand): Rename from fpa_rhs_operand.  Update Users.
	Only allow consts for FPA.
	(arm_float_add_operand): Rename from fpa_add_operand.  Update users.
	Only allow consts for FPA.
	(use_return_insn): Check for saved VFP regs.
	(arm_legitimate_address_p): Handle VFP DFmode addressing.
	(arm_legitimize_address): Ditto.
	(arm_general_register_operand): New function.
	(vfp_mem_operand): New function.
	(vfp_compare_operand): New function.
	(vfp_secondary_reload_class): New function.
	(arm_float_compare_operand): New function.
	(vfp_print_multi): New function.
	(vfp_output_fstmx): New function.
	(vfp_emit_fstm): New function.
	(arm_output_epilogue): Output VPF reg restore code.
	(arm_expand_prologue): Output VFP reg save code.
	(arm_print_operand): Add 'P'.
	(arm_hard_regno_mode_ok): Return modes for VFP regs.
	(arm_regno_class): Return classes for VFP regs.
	(arm_compute_initial_elimination_offset): Include space for VFP regs.
	(arm_get_frame_size): Ditto.
	* arm.h (FIXED_REGISTERS): Add VFP regs.
	(CALL_USED_REGISTERS): Ditto.
	(CONDITIONAL_REGISTER_USAGE): Enable VFP regs.
	(FIRST_VFP_REGNUM): Define.
	(LAST_VFP_REGNUM): Define.
	(IS_VFP_REGNUM): Define.
	(FIRST_PSEUDO_REGISTER): Include VFP regs.
	(HARD_REGNO_NREGS): Handle VFP regs.
	(REG_ALLOC_ORDER): Add VFP regs.
	(enum reg_class): Add VFP_REGS.
	(REG_CLASS_NAMES): Ditto.
	(REG_CLASS_CONTENTS): Ditto.
	(CANNOT_CHANGE_MODE_CLASS) Handle VFP Regs.
	(REG_CLASS_FROM_LETTER): Add 'w'.
	(EXTRA_CONSTRAINT_ARM): Add 'U'.
	(EXTRA_MEMORY_CONSTRAINT): Define.
	(SECONDARY_OUTPUT_RELOAD_CLASS): Handle VFP regs.
	(SECONDARY_INPUT_RELOAD_CLASS): Ditto.
	(REGISTER_MOVE_COST): Ditto.
	(PREDICATE_CODES): Add arm_general_register_operand,
	arm_float_compare_operand and vfp_compare_operand.
	* arm.md (various): Rename as above.
	(divsf3): Enable when TARGET_VFP.
	(divdf3): Ditto.
	(movdfcc): Ditto.
	(sqrtsf2): Ditto.
	(sqrtdf2): Ditto.
	(arm_movdi): Disable when TARGET_VFP.
	(arm_movsi_insn): Ditto.
	(movsi): Only split with general regs.
	(cmpsf): Use arm_float_compare_operand.
	(push_fp_multi): Restrict to TARGET_FPA.
	(vfp.md): Include.
	* vfp.md: New file.
	* fpa.md (various): Rename as above.
	* doc/md.texi: Document ARM w and U constraints.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/arm/vfp.md.diff?cvsroot=gcc&only_with_tag=csl-arm-branch&r1=NONE&r2=1.1.2.1

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