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comparison src/cpu/sparc/vm/assembler_sparc.hpp @ 710:e5b0439ef4ae

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6655638: dynamic languages need method handles Summary: initial implementation, with known omissions (x86/64, sparc, compiler optim., c-oops, C++ interp.) Reviewed-by: kvn, twisti, never
author jrose
date Wed, 08 Apr 2009 10:56:49 -0700
parents c89f86385056
children 6b2273dd6fa9
comparison
equal deleted inserted replaced
709:1d037ecd7960 710:e5b0439ef4ae
82 82
83 // These globals are used as short-lived scratch registers in the compiler: 83 // These globals are used as short-lived scratch registers in the compiler:
84 84
85 REGISTER_DECLARATION(Register, Gtemp , G5); 85 REGISTER_DECLARATION(Register, Gtemp , G5);
86 86
87 // JSR 292 fixed register usages:
88 REGISTER_DECLARATION(Register, G5_method_type , G5);
89 REGISTER_DECLARATION(Register, G3_method_handle , G3);
90
87 // The compiler requires that G5_megamorphic_method is G5_inline_cache_klass, 91 // The compiler requires that G5_megamorphic_method is G5_inline_cache_klass,
88 // because a single patchable "set" instruction (NativeMovConstReg, 92 // because a single patchable "set" instruction (NativeMovConstReg,
89 // or NativeMovConstPatching for compiler1) instruction 93 // or NativeMovConstPatching for compiler1) instruction
90 // serves to set up either quantity, depending on whether the compiled 94 // serves to set up either quantity, depending on whether the compiled
91 // call site is an inline cache or is megamorphic. See the function 95 // call site is an inline cache or is megamorphic. See the function
92 // CompiledIC::set_to_megamorphic. 96 // CompiledIC::set_to_megamorphic.
93 // 97 //
94 // On the other hand, G5_inline_cache_klass must differ from G5_method, 98 // If a inline cache targets an interpreted method, then the
95 // because both registers are needed for an inline cache that calls 99 // G5 register will be used twice during the call. First,
96 // an interpreted method. 100 // the call site will be patched to load a compiledICHolder
101 // into G5. (This is an ordered pair of ic_klass, method.)
102 // The c2i adapter will first check the ic_klass, then load
103 // G5_method with the method part of the pair just before
104 // jumping into the interpreter.
97 // 105 //
98 // Note that G5_method is only the method-self for the interpreter, 106 // Note that G5_method is only the method-self for the interpreter,
99 // and is logically unrelated to G5_megamorphic_method. 107 // and is logically unrelated to G5_megamorphic_method.
100 // 108 //
101 // Invariants on G2_thread (the JavaThread pointer): 109 // Invariants on G2_thread (the JavaThread pointer):
1929 inline void load_ptr_contents( Address& a, Register d, int offset = 0 ); 1937 inline void load_ptr_contents( Address& a, Register d, int offset = 0 );
1930 inline void store_contents( Register s, Address& a, int offset = 0 ); 1938 inline void store_contents( Register s, Address& a, int offset = 0 );
1931 inline void store_ptr_contents( Register s, Address& a, int offset = 0 ); 1939 inline void store_ptr_contents( Register s, Address& a, int offset = 0 );
1932 inline void jumpl_to( Address& a, Register d, int offset = 0 ); 1940 inline void jumpl_to( Address& a, Register d, int offset = 0 );
1933 inline void jump_to( Address& a, int offset = 0 ); 1941 inline void jump_to( Address& a, int offset = 0 );
1942 inline void jump_indirect_to( Address& a, Register temp, int ld_offset = 0, int jmp_offset = 0 );
1934 1943
1935 // ring buffer traceable jumps 1944 // ring buffer traceable jumps
1936 1945
1937 void jmp2( Register r1, Register r2, const char* file, int line ); 1946 void jmp2( Register r1, Register r2, const char* file, int line );
1938 void jmp ( Register r1, int offset, const char* file, int line ); 1947 void jmp ( Register r1, int offset, const char* file, int line );
2364 Register super_klass, 2373 Register super_klass,
2365 Register temp_reg, 2374 Register temp_reg,
2366 Register temp2_reg, 2375 Register temp2_reg,
2367 Label& L_success); 2376 Label& L_success);
2368 2377
2378 // method handles (JSR 292)
2379 void check_method_handle_type(Register mtype_reg, Register mh_reg,
2380 Register temp_reg,
2381 Label& wrong_method_type);
2382 void jump_to_method_handle_entry(Register mh_reg, Register temp_reg);
2383 // offset relative to Gargs of argument at tos[arg_slot].
2384 // (arg_slot == 0 means the last argument, not the first).
2385 RegisterOrConstant argument_offset(RegisterOrConstant arg_slot,
2386 int extra_slot_offset = 0);
2387
2369 2388
2370 // Stack overflow checking 2389 // Stack overflow checking
2371 2390
2372 // Note: this clobbers G3_scratch 2391 // Note: this clobbers G3_scratch
2373 void bang_stack_with_offset(int offset) { 2392 void bang_stack_with_offset(int offset) {