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comparison src/share/vm/interpreter/bytecode.cpp @ 726:be93aad57795

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6655646: dynamic languages need dynamically linked call sites Summary: invokedynamic instruction (JSR 292 RI) Reviewed-by: twisti, never
author jrose
date Tue, 21 Apr 2009 23:21:04 -0700
parents a61af66fc99e
children bd02caa94611
comparison
equal deleted inserted replaced
725:928912ce8438 726:be93aad57795
29 // Should eventually get rid of these functions and use ThisRelativeObj methods instead 29 // Should eventually get rid of these functions and use ThisRelativeObj methods instead
30 30
31 void Bytecode::set_code(Bytecodes::Code code) { 31 void Bytecode::set_code(Bytecodes::Code code) {
32 Bytecodes::check(code); 32 Bytecodes::check(code);
33 *addr_at(0) = u_char(code); 33 *addr_at(0) = u_char(code);
34 }
35
36
37 void Bytecode::set_fast_index(int i) {
38 assert(0 <= i && i < 0x10000, "illegal index value");
39 Bytes::put_native_u2(addr_at(1), (jushort)i);
40 } 34 }
41 35
42 36
43 bool Bytecode::check_must_rewrite() const { 37 bool Bytecode::check_must_rewrite() const {
44 assert(Bytecodes::can_rewrite(code()), "post-check only"); 38 assert(Bytecodes::can_rewrite(code()), "post-check only");
116 return m; 110 return m;
117 } 111 }
118 112
119 113
120 int Bytecode_invoke::index() const { 114 int Bytecode_invoke::index() const {
121 return Bytes::get_Java_u2(bcp() + 1); 115 // Note: Rewriter::rewrite changes the Java_u2 of an invokedynamic to a native_u4,
116 // at the same time it allocates per-call-site CP cache entries.
117 if (has_giant_index())
118 return Bytes::get_native_u4(bcp() + 1);
119 else
120 return Bytes::get_Java_u2(bcp() + 1);
122 } 121 }
123 122
124 123
125 // Implementation of Bytecode_static 124 // Implementation of Bytecode_static
126 125