Mercurial > hg > graal-jvmci-8

comparison src/cpu/x86/vm/interpreterRT_x86_32.cpp @ 1506:2338d41fbd81

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
6943304: remove tagged stack interpreter Reviewed-by: coleenp, never, gbenson
author twisti
date Fri, 30 Apr 2010 08:37:24 -0700
parents 0fbdb4381b99
children c18cbe5936b8
comparison
equal deleted inserted replaced
1505:0c5b3cf3c1f5 1506:2338d41fbd81
1 /* 1 /*
2 * Copyright 1998-2009 Sun Microsystems, Inc. All Rights Reserved. 2 * Copyright 1998-2010 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
84 class SlowSignatureHandler: public NativeSignatureIterator { 84 class SlowSignatureHandler: public NativeSignatureIterator {
85 private: 85 private:
86 address _from; 86 address _from;
87 intptr_t* _to; 87 intptr_t* _to;
88 88
89 #ifdef ASSERT
90 void verify_tag(frame::Tag t) {
91 assert(!TaggedStackInterpreter ||
92 *(intptr_t*)(_from+Interpreter::local_tag_offset_in_bytes(0)) == t, "wrong tag");
93 }
94 #endif // ASSERT
95
96 virtual void pass_int() { 89 virtual void pass_int() {
97 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0)); 90 *_to++ = *(jint *)(_from+Interpreter::local_offset_in_bytes(0));
98 debug_only(verify_tag(frame::TagValue)); 91 _from -= Interpreter::stackElementSize;
99 _from -= Interpreter::stackElementSize();
100 } 92 }
101 93
102 virtual void pass_long() { 94 virtual void pass_long() {
103 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1)); 95 _to[0] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(1));
104 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0)); 96 _to[1] = *(intptr_t*)(_from+Interpreter::local_offset_in_bytes(0));
105 debug_only(verify_tag(frame::TagValue));
106 _to += 2; 97 _to += 2;
107 _from -= 2*Interpreter::stackElementSize(); 98 _from -= 2*Interpreter::stackElementSize;
108 } 99 }
109 100
110 virtual void pass_object() { 101 virtual void pass_object() {
111 // pass address of from 102 // pass address of from
112 intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0)); 103 intptr_t from_addr = (intptr_t)(_from + Interpreter::local_offset_in_bytes(0));
113 *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr; 104 *_to++ = (*(intptr_t*)from_addr == 0) ? NULL_WORD : from_addr;
114 debug_only(verify_tag(frame::TagReference)); 105 _from -= Interpreter::stackElementSize;
115 _from -= Interpreter::stackElementSize();
116 } 106 }
117 107
118 public: 108 public:
119 SlowSignatureHandler(methodHandle method, address from, intptr_t* to) : 109 SlowSignatureHandler(methodHandle method, address from, intptr_t* to) :
120 NativeSignatureIterator(method) { 110 NativeSignatureIterator(method) {