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src/cpu/x86/vm/c1_FrameMap_x86.hpp@b130b98db9cf (annotated)

src/cpu/x86/vm/c1_FrameMap_x86.hpp

Wed, 23 Apr 2008 11:20:36 -0700

author

kvn

date

Wed, 23 Apr 2008 11:20:36 -0700

changeset 559

b130b98db9cf

parent 435

a61af66fc99e

child 739

dc7f315e41f7

permissions

-rw-r--r--

6689060: Escape Analysis does not work with Compressed Oops
Summary: 64-bits VM crashes with -XX:+AggresiveOpts (Escape Analysis + Compressed Oops)
Reviewed-by: never, sgoldman

duke@435	1	/*
duke@435	2	* Copyright 1999-2006 Sun Microsystems, Inc. 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	*
duke@435	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435	20	* CA 95054 USA or visit www.sun.com if you need additional information or
duke@435	21	* have any questions.
duke@435	22	*
duke@435	23	*/
duke@435	24
duke@435	25	// On i486 the frame looks as follows:
duke@435	26	//
duke@435	27	// +-----------------------------+---------+----------------------------------------+----------------+-----------
duke@435	28	// | size_arguments-nof_reg_args | 2 words | size_locals-size_arguments+numreg_args | _size_monitors | spilling .
duke@435	29	// +-----------------------------+---------+----------------------------------------+----------------+-----------
duke@435	30	//
duke@435	31	// The FPU registers are mapped with their offset from TOS; therefore the
duke@435	32	// status of FPU stack must be updated during code emission.
duke@435	33
duke@435	34	public:
duke@435	35	static const int pd_c_runtime_reserved_arg_size;
duke@435	36
duke@435	37	enum {
duke@435	38	nof_xmm_regs = pd_nof_xmm_regs_frame_map,
duke@435	39	nof_caller_save_xmm_regs = pd_nof_caller_save_xmm_regs_frame_map,
duke@435	40	first_available_sp_in_frame = 0,
duke@435	41	frame_pad_in_bytes = 8,
duke@435	42	nof_reg_args = 2
duke@435	43	};
duke@435	44
duke@435	45	private:
duke@435	46	static LIR_Opr _caller_save_xmm_regs [nof_caller_save_xmm_regs];
duke@435	47
duke@435	48	static XMMRegister _xmm_regs[nof_xmm_regs];
duke@435	49
duke@435	50	public:
duke@435	51	static LIR_Opr receiver_opr;
duke@435	52
duke@435	53	static LIR_Opr rsi_opr;
duke@435	54	static LIR_Opr rdi_opr;
duke@435	55	static LIR_Opr rbx_opr;
duke@435	56	static LIR_Opr rax_opr;
duke@435	57	static LIR_Opr rdx_opr;
duke@435	58	static LIR_Opr rcx_opr;
duke@435	59	static LIR_Opr rsp_opr;
duke@435	60	static LIR_Opr rbp_opr;
duke@435	61
duke@435	62	static LIR_Opr rsi_oop_opr;
duke@435	63	static LIR_Opr rdi_oop_opr;
duke@435	64	static LIR_Opr rbx_oop_opr;
duke@435	65	static LIR_Opr rax_oop_opr;
duke@435	66	static LIR_Opr rdx_oop_opr;
duke@435	67	static LIR_Opr rcx_oop_opr;
duke@435	68
duke@435	69	static LIR_Opr rax_rdx_long_opr;
duke@435	70	static LIR_Opr rbx_rcx_long_opr;
duke@435	71	static LIR_Opr fpu0_float_opr;
duke@435	72	static LIR_Opr fpu0_double_opr;
duke@435	73	static LIR_Opr xmm0_float_opr;
duke@435	74	static LIR_Opr xmm0_double_opr;
duke@435	75
duke@435	76	static LIR_Opr as_long_opr(Register r, Register r2) {
duke@435	77	return LIR_OprFact::double_cpu(cpu_reg2rnr(r), cpu_reg2rnr(r2));
duke@435	78	}
duke@435	79
duke@435	80	// VMReg name for spilled physical FPU stack slot n
duke@435	81	static VMReg fpu_regname (int n);
duke@435	82
duke@435	83	static XMMRegister nr2xmmreg(int rnr);
duke@435	84
duke@435	85	static bool is_caller_save_register (LIR_Opr opr) { return true; }
duke@435	86	static bool is_caller_save_register (Register r) { return true; }
duke@435	87
duke@435	88	static LIR_Opr caller_save_xmm_reg_at(int i) {
duke@435	89	assert(i >= 0 && i < nof_caller_save_xmm_regs, "out of bounds");
duke@435	90	return _caller_save_xmm_regs[i];
duke@435	91	}