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src/cpu/sparc/vm/jniTypes_sparc.hpp@6c4cda924d2e (annotated)

src/cpu/sparc/vm/jniTypes_sparc.hpp

Wed, 07 Jan 2009 11:23:28 -0800

author

kvn

date

Wed, 07 Jan 2009 11:23:28 -0800

changeset 986

6c4cda924d2e

parent 435

a61af66fc99e

child 1907

c18cbe5936b8

permissions

-rw-r--r--

6790182: matcher.cpp:1375: assert(false,"bad AD file")
Summary: Add a match rule for regD_low in regD definition.
Reviewed-by: never

duke@435	1	/*
duke@435	2	* Copyright 1998-2002 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	// This file holds platform-dependent routines used to write primitive jni
duke@435	26	// types to the array of arguments passed into JavaCalls::call
duke@435	27
duke@435	28	class JNITypes : AllStatic {
duke@435	29	// These functions write a java primitive type (in native format)
duke@435	30	// to a java stack slot array to be passed as an argument to JavaCalls:calls.
duke@435	31	// I.e., they are functionally 'push' operations if they have a 'pos'
duke@435	32	// formal parameter. Note that jlong's and jdouble's are written
duke@435	33	// _in reverse_ of the order in which they appear in the interpreter
duke@435	34	// stack. This is because call stubs (see stubGenerator_sparc.cpp)
duke@435	35	// reverse the argument list constructed by JavaCallArguments (see
duke@435	36	// javaCalls.hpp).
duke@435	37
duke@435	38	private:
duke@435	39	// Helper routines.
duke@435	40	static inline void put_int2 (jint *from, jint *to) { to[0] = from[0]; to[1] = from[1]; }
duke@435	41	static inline void put_int2 (jint *from, jint *to, int& pos) { put_int2 (from, (jint *)((intptr_t *)to + pos)); pos += 2; }
duke@435	42	static inline void put_int2r(jint *from, jint *to) { to[0] = from[1]; to[1] = from[0]; }
duke@435	43	static inline void put_int2r(jint *from, jint *to, int& pos) { put_int2r(from, (jint *)((intptr_t *)to + pos)); pos += 2; }
duke@435	44
duke@435	45	public:
duke@435	46	// Ints are stored in native format in one JavaCallArgument slot at *to.
duke@435	47	static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; }
duke@435	48	static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; }
duke@435	49	static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; }
duke@435	50
duke@435	51	#ifdef _LP64
duke@435	52	// Longs are stored in native format in one JavaCallArgument slot at *(to+1).
duke@435	53	static inline void put_long(jlong from, intptr_t *to) { *(jlong *)(to + 1 + 0) = from; }
duke@435	54	static inline void put_long(jlong from, intptr_t *to, int& pos) { *(jlong *)(to + 1 + pos) = from; pos += 2; }
duke@435	55	static inline void put_long(jlong *from, intptr_t *to, int& pos) { *(jlong *)(to + 1 + pos) = *from; pos += 2; }
duke@435	56	#else
duke@435	57	// Longs are stored in reversed native word format in two JavaCallArgument slots at *to.
duke@435	58	// The high half is in *(to+1) and the low half in *to.
duke@435	59	static inline void put_long(jlong from, intptr_t *to) { put_int2r((jint *)&from, (jint *)to); }
duke@435	60	static inline void put_long(jlong from, intptr_t *to, int& pos) { put_int2r((jint *)&from, (jint *)to, pos); }
duke@435	61	static inline void put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, (jint *)to, pos); }
duke@435	62	#endif
duke@435	63
duke@435	64	// Oops are stored in native format in one JavaCallArgument slot at *to.
duke@435	65	static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; }
duke@435	66	static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; }
duke@435	67	static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; }
duke@435	68
duke@435	69	// Floats are stored in native format in one JavaCallArgument slot at *to.
duke@435	70	static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; }
duke@435	71	static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; }
duke@435	72	static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; }
duke@435	73
duke@435	74	#ifdef _LP64
duke@435	75	// Doubles are stored in native word format in one JavaCallArgument slot at *(to+1).
duke@435	76	static inline void put_double(jdouble from, intptr_t *to) { *(jdouble *)(to + 1 + 0) = from; }
duke@435	77	static inline void put_double(jdouble from, intptr_t *to, int& pos) { *(jdouble *)(to + 1 + pos) = from; pos += 2; }
duke@435	78	static inline void put_double(jdouble *from, intptr_t *to, int& pos) { *(jdouble *)(to + 1 + pos) = *from; pos += 2; }
duke@435	79	#else
duke@435	80	// Doubles are stored in reversed native word format in two JavaCallArgument slots at *to.
duke@435	81	static inline void put_double(jdouble from, intptr_t *to) { put_int2r((jint *)&from, (jint *)to); }
duke@435	82	static inline void put_double(jdouble from, intptr_t *to, int& pos) { put_int2r((jint *)&from, (jint *)to, pos); }
duke@435	83	static inline void put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, (jint *)to, pos); }
duke@435	84	#endif
duke@435	85
duke@435	86	// The get_xxx routines, on the other hand, actually _do_ fetch
duke@435	87	// java primitive types from the interpreter stack.
duke@435	88	static inline jint get_int(intptr_t *from) { return *(jint *)from; }
duke@435	89
duke@435	90	#ifdef _LP64
duke@435	91	static inline jlong get_long(intptr_t *from) { return *(jlong *)from; }
duke@435	92	#else
duke@435	93	static inline jlong get_long(intptr_t *from) { return ((jlong)(*( signed int *)((jint *)from )) << 32) |
duke@435	94	((jlong)(*(unsigned int *)((jint *)from + 1)) << 0); }
duke@435	95	#endif
duke@435	96
duke@435	97	static inline oop get_obj(intptr_t *from) { return *(oop *)from; }
duke@435	98	static inline jfloat get_float(intptr_t *from) { return *(jfloat *)from; }
duke@435	99
duke@435	100	#ifdef _LP64
duke@435	101	static inline jdouble get_double(intptr_t *from) { return *(jdouble *)from; }
duke@435	102	#else
duke@435	103	static inline jdouble get_double(intptr_t *from) { jlong jl = ((jlong)(*( signed int *)((jint *)from )) << 32) |
duke@435	104	((jlong)(*(unsigned int *)((jint *)from + 1)) << 0);
duke@435	105	return *(jdouble *)&jl; }
duke@435	106	#endif
duke@435	107
duke@435	108	};