Tue, 26 Jul 2016 17:06:17 +0800
Add multiply word to GPR instruction (mul) in MIPS assembler.
1 /*
2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2015, 2016, Loongson Technology. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
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10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
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24 */
26 #ifndef CPU_MIPS_VM_JNITYPES_MIPS_HPP
27 #define CPU_MIPS_VM_JNITYPES_MIPS_HPP
29 #include "memory/allocation.hpp"
30 #include "oops/oop.hpp"
31 #include "prims/jni.h"
33 // This file holds platform-dependent routines used to write primitive jni
34 // types to the array of arguments passed into JavaCalls::call
36 class JNITypes : AllStatic {
37 // These functions write a java primitive type (in native format)
38 // to a java stack slot array to be passed as an argument to JavaCalls:calls.
39 // I.e., they are functionally 'push' operations if they have a 'pos'
40 // formal parameter. Note that jlong's and jdouble's are written
41 // _in reverse_ of the order in which they appear in the interpreter
42 // stack. This is because call stubs (see stubGenerator_sparc.cpp)
43 // reverse the argument list constructed by JavaCallArguments (see
44 // javaCalls.hpp).
46 private:
48 #ifndef AMD64
49 // 32bit Helper routines.
50 static inline void put_int2r(jint *from, intptr_t *to) { *(jint *)(to++) = from[1];
51 *(jint *)(to ) = from[0];
52 }
53 static inline void put_int2r(jint *from, intptr_t *to, int& pos) { put_int2r(from, to + pos); pos += 2; }
54 #endif // AMD64
56 public:
57 #ifdef _LP64
58 // Jin: In MIPS64, the sizeof intptr_t is 8 bytes, and each unit in JavaCallArguments::_value_buffer[]
59 // is 8 bytes.
60 // If we only write the low 4 bytes with (jint *), the high 4-bits will be left with uncertain values.
61 // Then, in JavaCallArguments::parameters(), the whole 8 bytes of a T_INT parameter is loaded.
62 // This error occurs in ReflectInvoke.java
63 // The parameter of DD(int) should be 4 instead of 0x550000004.
64 //
65 // See: [runtime/javaCalls.hpp]
67 static inline void put_int(jint from, intptr_t *to) { *(intptr_t *)(to + 0 ) = from; }
68 static inline void put_int(jint from, intptr_t *to, int& pos) { *(intptr_t *)(to + pos++) = from; }
69 static inline void put_int(jint *from, intptr_t *to, int& pos) { *(intptr_t *)(to + pos++) = *from; }
70 #else
71 // Ints are stored in native format in one JavaCallArgument slot at *to.
72 static inline void put_int(jint from, intptr_t *to) { *(jint *)(to + 0 ) = from; }
73 static inline void put_int(jint from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = from; }
74 static inline void put_int(jint *from, intptr_t *to, int& pos) { *(jint *)(to + pos++) = *from; }
75 #endif
77 #ifdef _LP64
78 // Longs are stored in native format in one JavaCallArgument slot at
79 // *(to).
80 // In theory, *(to + 1) is an empty slot. But, for several Java2D testing programs (TestBorderLayout, SwingTest),
81 // *(to + 1) must contains a copy of the long value. Otherwise it will corrupts.
82 static inline void put_long(jlong from, intptr_t *to) {
83 *(jlong*) (to + 1) = from;
84 *(jlong*) (to) = from;
85 }
87 /* Jin: A long parameter occupies two slot.
88 * It must fit the layout rule in methodHandle.
89 *
90 * See: [runtime/reflection.cpp] Reflection::invoke()
91 * assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
92 */
93 static inline void put_long(jlong from, intptr_t *to, int& pos) {
94 *(jlong*) (to + 1 + pos) = from;
95 *(jlong*) (to + pos) = from;
96 pos += 2;
97 }
99 static inline void put_long(jlong *from, intptr_t *to, int& pos) {
100 *(jlong*) (to + 1 + pos) = *from;
101 *(jlong*) (to + pos) = *from;
102 pos += 2;
103 }
104 #else
105 // Longs are stored in big-endian word format in two JavaCallArgument slots at *to.
106 // The high half is in *to and the low half in *(to+1).
107 static inline void put_long(jlong from, intptr_t *to) { put_int2r((jint *)&from, to); }
108 static inline void put_long(jlong from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); }
109 static inline void put_long(jlong *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); }
110 #endif // AMD64
112 // Oops are stored in native format in one JavaCallArgument slot at *to.
113 static inline void put_obj(oop from, intptr_t *to) { *(oop *)(to + 0 ) = from; }
114 static inline void put_obj(oop from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = from; }
115 static inline void put_obj(oop *from, intptr_t *to, int& pos) { *(oop *)(to + pos++) = *from; }
117 // Floats are stored in native format in one JavaCallArgument slot at *to.
118 static inline void put_float(jfloat from, intptr_t *to) { *(jfloat *)(to + 0 ) = from; }
119 static inline void put_float(jfloat from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = from; }
120 static inline void put_float(jfloat *from, intptr_t *to, int& pos) { *(jfloat *)(to + pos++) = *from; }
122 #undef _JNI_SLOT_OFFSET
123 #define _JNI_SLOT_OFFSET 0
125 #ifdef _LP64
126 // Longs are stored in native format in one JavaCallArgument slot at
127 // *(to).
128 // In theory, *(to + 1) is an empty slot. But, for several Java2D testing programs (TestBorderLayout, SwingTest),
129 // *(to + 1) must contains a copy of the long value. Otherwise it will corrupts.
130 static inline void put_double(jdouble from, intptr_t *to) {
131 *(jdouble*) (to + 1) = from;
132 *(jdouble*) (to) = from;
133 }
135 /* Jin: A long parameter occupies two slot.
136 * It must fit the layout rule in methodHandle.
137 *
138 * See: [runtime/reflection.cpp] Reflection::invoke()
139 * assert(java_args.size_of_parameters() == method->size_of_parameters(), "just checking");
140 */
141 static inline void put_double(jdouble from, intptr_t *to, int& pos) {
142 *(jdouble*) (to + 1 + pos) = from;
143 *(jdouble*) (to + pos) = from;
144 pos += 2;
145 }
147 static inline void put_double(jdouble *from, intptr_t *to, int& pos) {
148 *(jdouble*) (to + 1 + pos) = *from;
149 *(jdouble*) (to + pos) = *from;
150 pos += 2;
151 }
152 #else
153 // Doubles are stored in big-endian word format in two JavaCallArgument slots at *to.
154 // The high half is in *to and the low half in *(to+1).
155 static inline void put_double(jdouble from, intptr_t *to) { put_int2r((jint *)&from, to); }
156 static inline void put_double(jdouble from, intptr_t *to, int& pos) { put_int2r((jint *)&from, to, pos); }
157 static inline void put_double(jdouble *from, intptr_t *to, int& pos) { put_int2r((jint *) from, to, pos); }
158 #endif
161 // The get_xxx routines, on the other hand, actually _do_ fetch
162 // java primitive types from the interpreter stack.
163 // No need to worry about alignment on Intel.
164 static inline jint get_int (intptr_t *from) { return *(jint *) from; }
165 static inline jlong get_long (intptr_t *from) { return *(jlong *) (from + _JNI_SLOT_OFFSET); }
166 static inline oop get_obj (intptr_t *from) { return *(oop *) from; }
167 static inline jfloat get_float (intptr_t *from) { return *(jfloat *) from; }
168 static inline jdouble get_double(intptr_t *from) { return *(jdouble *)(from + _JNI_SLOT_OFFSET); }
169 #undef _JNI_SLOT_OFFSET
170 };
172 #endif // CPU_MIPS_VM_JNITYPES_MIPS_HPP