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src/cpu/sparc/vm/c1_LIRAssembler_sparc.hpp@126ea7725993 (annotated)

src/cpu/sparc/vm/c1_LIRAssembler_sparc.hpp

Tue, 03 Aug 2010 08:13:38 -0400

author

bobv

date

Tue, 03 Aug 2010 08:13:38 -0400

changeset 2036

126ea7725993

parent 1907

c18cbe5936b8

child 2138

d5d065957597

permissions

-rw-r--r--

6953477: Increase portability and flexibility of building Hotspot
Summary: A collection of portability improvements including shared code support for PPC, ARM platforms, software floating point, cross compilation support and improvements in error crash detail.
Reviewed-by: phh, never, coleenp, dholmes

duke@435	1	/*
trims@1907	2	* Copyright (c) 2000, 2006, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	18	*
trims@1907	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907	20	* or visit www.oracle.com if you need additional information or have any
trims@1907	21	* questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	private:
duke@435	26
duke@435	27	//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
duke@435	28	//
duke@435	29	// Sparc load/store emission
duke@435	30	//
duke@435	31	// The sparc ld/st instructions cannot accomodate displacements > 13 bits long.
duke@435	32	// The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode
duke@435	33	// by allowing 32 bit displacements:
duke@435	34	//
duke@435	35	// When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]).
duke@435	36	// When disp > 13 bits long, code is emitted to set the displacement into the O7 register,
duke@435	37	// and then a load or store is emitted with ([O7] + [d]).
duke@435	38	//
duke@435	39
duke@435	40	// some load/store variants return the code_offset for proper positioning of debug info for null checks
duke@435	41
duke@435	42	// load/store with 32 bit displacement
duke@435	43	int load(Register s, int disp, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);
duke@435	44	void store(Register value, Register base, int offset, BasicType type, CodeEmitInfo *info = NULL);
duke@435	45
duke@435	46	// loadf/storef with 32 bit displacement
duke@435	47	void load(Register s, int disp, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL);
duke@435	48	void store(FloatRegister d, Register s1, int disp, BasicType st_type, CodeEmitInfo* info = NULL);
duke@435	49
duke@435	50	// convienence methods for calling load/store with an Address
duke@435	51	void load(const Address& a, Register d, BasicType ld_type, CodeEmitInfo* info = NULL, int offset = 0);
duke@435	52	void store(Register d, const Address& a, BasicType st_type, CodeEmitInfo* info = NULL, int offset = 0);
duke@435	53	void load(const Address& a, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL, int offset = 0);
duke@435	54	void store(FloatRegister d, const Address& a, BasicType st_type, CodeEmitInfo* info = NULL, int offset = 0);
duke@435	55
duke@435	56	// convienence methods for calling load/store with an LIR_Address
duke@435	57	void load(LIR_Address* a, Register d, BasicType ld_type, CodeEmitInfo* info = NULL);
duke@435	58	void store(Register d, LIR_Address* a, BasicType st_type, CodeEmitInfo* info = NULL);
duke@435	59	void load(LIR_Address* a, FloatRegister d, BasicType ld_type, CodeEmitInfo* info = NULL);
duke@435	60	void store(FloatRegister d, LIR_Address* a, BasicType st_type, CodeEmitInfo* info = NULL);
duke@435	61
duke@435	62	int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool unaligned = false);
duke@435	63	int store(LIR_Opr from_reg, Register base, Register disp, BasicType type);
duke@435	64
duke@435	65	int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool unaligned = false);
duke@435	66	int load(Register base, Register disp, LIR_Opr to_reg, BasicType type);
duke@435	67
duke@435	68	void monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no);
duke@435	69
duke@435	70	int shift_amount(BasicType t);
duke@435	71
duke@435	72	static bool is_single_instruction(LIR_Op* op);
duke@435	73
duke@435	74	public:
duke@435	75	void pack64( Register rs, Register rd );
duke@435	76	void unpack64( Register rd );
duke@435	77
duke@435	78	enum {
duke@435	79	#ifdef _LP64
duke@435	80	call_stub_size = 68,
duke@435	81	#else
duke@435	82	call_stub_size = 20,
duke@435	83	#endif // _LP64
duke@435	84	exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4),
duke@435	85	deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(10*4) };