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6829193: JSR 292 needs to support SPARC
There are unimplemented portions of the hotspot code for method handles and invokedynamic specific to SPARC. Reviewed-by: kvn, never, jrose
This commit is contained in:
Christian Thalinger
parent
78e6939c37
commit
6d2a896bcd
14 changed files with 1210 additions and 126 deletions
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@ -1,5 +1,5 @@
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/*
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* Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
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* Copyright 2008-2010 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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@ -29,6 +29,9 @@
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address MethodHandleEntry::start_compiled_entry(MacroAssembler* _masm,
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address interpreted_entry) {
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// Just before the actual machine code entry point, allocate space
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// for a MethodHandleEntry::Data record, so that we can manage everything
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// from one base pointer.
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__ align(wordSize);
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address target = __ pc() + sizeof(Data);
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while (__ pc() < target) {
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@ -59,12 +62,876 @@ MethodHandleEntry* MethodHandleEntry::finish_compiled_entry(MacroAssembler* _mas
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// Code generation
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address MethodHandles::generate_method_handle_interpreter_entry(MacroAssembler* _masm) {
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ShouldNotReachHere(); //NYI, 6815692
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return NULL;
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// I5_savedSP: sender SP (must preserve)
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// G4 (Gargs): incoming argument list (must preserve)
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// G5_method: invoke methodOop; becomes method type.
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// G3_method_handle: receiver method handle (must load from sp[MethodTypeForm.vmslots])
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// O0, O1: garbage temps, blown away
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Register O0_argslot = O0;
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Register O1_scratch = O1;
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// emit WrongMethodType path first, to enable back-branch from main path
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Label wrong_method_type;
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__ bind(wrong_method_type);
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__ jump_to(AddressLiteral(Interpreter::throw_WrongMethodType_entry()), O1_scratch);
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__ delayed()->nop();
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// here's where control starts out:
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__ align(CodeEntryAlignment);
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address entry_point = __ pc();
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// fetch the MethodType from the method handle into G5_method_type
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{
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Register tem = G5_method;
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assert(tem == G5_method_type, "yes, it's the same register");
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for (jint* pchase = methodOopDesc::method_type_offsets_chain(); (*pchase) != -1; pchase++) {
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__ ld_ptr(Address(tem, *pchase), G5_method_type);
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}
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}
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// given the MethodType, find out where the MH argument is buried
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__ ld_ptr(Address(G5_method_type, __ delayed_value(java_dyn_MethodType::form_offset_in_bytes, O1_scratch)), O0_argslot);
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__ ldsw( Address(O0_argslot, __ delayed_value(java_dyn_MethodTypeForm::vmslots_offset_in_bytes, O1_scratch)), O0_argslot);
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__ ld_ptr(__ argument_address(O0_argslot), G3_method_handle);
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__ check_method_handle_type(G5_method_type, G3_method_handle, O1_scratch, wrong_method_type);
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__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
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return entry_point;
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}
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#ifdef ASSERT
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static void verify_argslot(MacroAssembler* _masm, Register argslot_reg, Register temp_reg, const char* error_message) {
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// Verify that argslot lies within (Gargs, FP].
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Label L_ok, L_bad;
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#ifdef _LP64
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__ add(FP, STACK_BIAS, temp_reg);
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__ cmp(argslot_reg, temp_reg);
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#else
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__ cmp(argslot_reg, FP);
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#endif
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__ brx(Assembler::greaterUnsigned, false, Assembler::pn, L_bad);
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__ delayed()->nop();
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__ cmp(Gargs, argslot_reg);
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__ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok);
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__ delayed()->nop();
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__ bind(L_bad);
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__ stop(error_message);
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__ bind(L_ok);
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}
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#endif
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// Helper to insert argument slots into the stack.
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// arg_slots must be a multiple of stack_move_unit() and <= 0
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void MethodHandles::insert_arg_slots(MacroAssembler* _masm,
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RegisterOrConstant arg_slots,
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int arg_mask,
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Register argslot_reg,
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Register temp_reg, Register temp2_reg, Register temp3_reg) {
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assert(temp3_reg != noreg, "temp3 required");
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assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg,
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(!arg_slots.is_register() ? Gargs : arg_slots.as_register()));
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#ifdef ASSERT
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verify_argslot(_masm, argslot_reg, temp_reg, "insertion point must fall within current frame");
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if (arg_slots.is_register()) {
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Label L_ok, L_bad;
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__ cmp(arg_slots.as_register(), (int32_t) NULL_WORD);
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__ br(Assembler::greater, false, Assembler::pn, L_bad);
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__ delayed()->nop();
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__ btst(-stack_move_unit() - 1, arg_slots.as_register());
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__ br(Assembler::zero, false, Assembler::pt, L_ok);
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__ delayed()->nop();
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__ bind(L_bad);
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__ stop("assert arg_slots <= 0 and clear low bits");
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__ bind(L_ok);
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} else {
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assert(arg_slots.as_constant() <= 0, "");
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assert(arg_slots.as_constant() % -stack_move_unit() == 0, "");
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}
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#endif // ASSERT
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#ifdef _LP64
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if (arg_slots.is_register()) {
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// Was arg_slots register loaded as signed int?
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Label L_ok;
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__ sll(arg_slots.as_register(), BitsPerInt, temp_reg);
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__ sra(temp_reg, BitsPerInt, temp_reg);
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__ cmp(arg_slots.as_register(), temp_reg);
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__ br(Assembler::equal, false, Assembler::pt, L_ok);
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__ delayed()->nop();
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__ stop("arg_slots register not loaded as signed int");
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__ bind(L_ok);
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}
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#endif
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// Make space on the stack for the inserted argument(s).
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// Then pull down everything shallower than argslot_reg.
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// The stacked return address gets pulled down with everything else.
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// That is, copy [sp, argslot) downward by -size words. In pseudo-code:
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// sp -= size;
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// for (temp = sp + size; temp < argslot; temp++)
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// temp[-size] = temp[0]
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// argslot -= size;
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RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg);
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// Keep the stack pointer 2*wordSize aligned.
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const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1);
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RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg);
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__ add(SP, masked_offset, SP);
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__ mov(Gargs, temp_reg); // source pointer for copy
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__ add(Gargs, offset, Gargs);
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{
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Label loop;
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__ bind(loop);
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// pull one word down each time through the loop
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__ ld_ptr(Address(temp_reg, 0), temp2_reg);
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__ st_ptr(temp2_reg, Address(temp_reg, offset));
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__ add(temp_reg, wordSize, temp_reg);
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__ cmp(temp_reg, argslot_reg);
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__ brx(Assembler::less, false, Assembler::pt, loop);
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__ delayed()->nop(); // FILLME
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}
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// Now move the argslot down, to point to the opened-up space.
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__ add(argslot_reg, offset, argslot_reg);
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}
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// Helper to remove argument slots from the stack.
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// arg_slots must be a multiple of stack_move_unit() and >= 0
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void MethodHandles::remove_arg_slots(MacroAssembler* _masm,
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RegisterOrConstant arg_slots,
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Register argslot_reg,
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Register temp_reg, Register temp2_reg, Register temp3_reg) {
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assert(temp3_reg != noreg, "temp3 required");
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assert_different_registers(argslot_reg, temp_reg, temp2_reg, temp3_reg,
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(!arg_slots.is_register() ? Gargs : arg_slots.as_register()));
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RegisterOrConstant offset = __ regcon_sll_ptr(arg_slots, LogBytesPerWord, temp3_reg);
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#ifdef ASSERT
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// Verify that [argslot..argslot+size) lies within (Gargs, FP).
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__ add(argslot_reg, offset, temp2_reg);
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verify_argslot(_masm, temp2_reg, temp_reg, "deleted argument(s) must fall within current frame");
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if (arg_slots.is_register()) {
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Label L_ok, L_bad;
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__ cmp(arg_slots.as_register(), (int32_t) NULL_WORD);
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__ br(Assembler::less, false, Assembler::pn, L_bad);
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__ delayed()->nop();
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__ btst(-stack_move_unit() - 1, arg_slots.as_register());
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__ br(Assembler::zero, false, Assembler::pt, L_ok);
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__ delayed()->nop();
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__ bind(L_bad);
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__ stop("assert arg_slots >= 0 and clear low bits");
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__ bind(L_ok);
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} else {
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assert(arg_slots.as_constant() >= 0, "");
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assert(arg_slots.as_constant() % -stack_move_unit() == 0, "");
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}
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#endif // ASSERT
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// Pull up everything shallower than argslot.
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// Then remove the excess space on the stack.
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// The stacked return address gets pulled up with everything else.
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// That is, copy [sp, argslot) upward by size words. In pseudo-code:
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// for (temp = argslot-1; temp >= sp; --temp)
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// temp[size] = temp[0]
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// argslot += size;
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// sp += size;
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__ sub(argslot_reg, wordSize, temp_reg); // source pointer for copy
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{
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Label loop;
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__ bind(loop);
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// pull one word up each time through the loop
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__ ld_ptr(Address(temp_reg, 0), temp2_reg);
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__ st_ptr(temp2_reg, Address(temp_reg, offset));
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__ sub(temp_reg, wordSize, temp_reg);
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__ cmp(temp_reg, Gargs);
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__ brx(Assembler::greaterEqual, false, Assembler::pt, loop);
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__ delayed()->nop(); // FILLME
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}
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// Now move the argslot up, to point to the just-copied block.
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__ add(Gargs, offset, Gargs);
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// And adjust the argslot address to point at the deletion point.
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__ add(argslot_reg, offset, argslot_reg);
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// Keep the stack pointer 2*wordSize aligned.
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const int TwoWordAlignmentMask = right_n_bits(LogBytesPerWord + 1);
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RegisterOrConstant masked_offset = __ regcon_andn_ptr(offset, TwoWordAlignmentMask, temp_reg);
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__ add(SP, masked_offset, SP);
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}
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#ifndef PRODUCT
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extern "C" void print_method_handle(oop mh);
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void trace_method_handle_stub(const char* adaptername,
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oop mh) {
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#if 0
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intptr_t* entry_sp,
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intptr_t* saved_sp,
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intptr_t* saved_bp) {
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// called as a leaf from native code: do not block the JVM!
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intptr_t* last_sp = (intptr_t*) saved_bp[frame::interpreter_frame_last_sp_offset];
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intptr_t* base_sp = (intptr_t*) saved_bp[frame::interpreter_frame_monitor_block_top_offset];
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printf("MH %s mh="INTPTR_FORMAT" sp=("INTPTR_FORMAT"+"INTX_FORMAT") stack_size="INTX_FORMAT" bp="INTPTR_FORMAT"\n",
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adaptername, (intptr_t)mh, (intptr_t)entry_sp, (intptr_t)(saved_sp - entry_sp), (intptr_t)(base_sp - last_sp), (intptr_t)saved_bp);
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if (last_sp != saved_sp)
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printf("*** last_sp="INTPTR_FORMAT"\n", (intptr_t)last_sp);
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#endif
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printf("MH %s mh="INTPTR_FORMAT"\n", adaptername, (intptr_t) mh);
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print_method_handle(mh);
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}
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#endif // PRODUCT
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//------------------------------------------------------------------------------
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// MethodHandles::generate_method_handle_stub
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//
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// Generate an "entry" field for a method handle.
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// This determines how the method handle will respond to calls.
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void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHandles::EntryKind ek) {
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ShouldNotReachHere(); //NYI, 6815692
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// Here is the register state during an interpreted call,
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// as set up by generate_method_handle_interpreter_entry():
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// - G5: garbage temp (was MethodHandle.invoke methodOop, unused)
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// - G3: receiver method handle
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// - O5_savedSP: sender SP (must preserve)
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Register O0_argslot = O0;
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Register O1_scratch = O1;
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Register O2_scratch = O2;
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Register O3_scratch = O3;
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Register G5_index = G5;
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guarantee(java_dyn_MethodHandle::vmentry_offset_in_bytes() != 0, "must have offsets");
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// Some handy addresses:
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Address G5_method_fie( G5_method, in_bytes(methodOopDesc::from_interpreted_offset()));
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Address G3_mh_vmtarget( G3_method_handle, java_dyn_MethodHandle::vmtarget_offset_in_bytes());
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Address G3_dmh_vmindex( G3_method_handle, sun_dyn_DirectMethodHandle::vmindex_offset_in_bytes());
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Address G3_bmh_vmargslot( G3_method_handle, sun_dyn_BoundMethodHandle::vmargslot_offset_in_bytes());
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Address G3_bmh_argument( G3_method_handle, sun_dyn_BoundMethodHandle::argument_offset_in_bytes());
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Address G3_amh_vmargslot( G3_method_handle, sun_dyn_AdapterMethodHandle::vmargslot_offset_in_bytes());
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Address G3_amh_argument ( G3_method_handle, sun_dyn_AdapterMethodHandle::argument_offset_in_bytes());
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Address G3_amh_conversion(G3_method_handle, sun_dyn_AdapterMethodHandle::conversion_offset_in_bytes());
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const int java_mirror_offset = klassOopDesc::klass_part_offset_in_bytes() + Klass::java_mirror_offset_in_bytes();
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if (have_entry(ek)) {
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__ nop(); // empty stubs make SG sick
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return;
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}
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address interp_entry = __ pc();
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if (UseCompressedOops) __ unimplemented("UseCompressedOops");
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#ifndef PRODUCT
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if (TraceMethodHandles) {
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// save: Gargs, O5_savedSP
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__ save(SP, -16*wordSize, SP);
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__ set((intptr_t) entry_name(ek), O0);
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__ mov(G3_method_handle, O1);
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__ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, trace_method_handle_stub));
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__ restore(SP, 16*wordSize, SP);
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}
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#endif // PRODUCT
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switch ((int) ek) {
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case _raise_exception:
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{
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// Not a real MH entry, but rather shared code for raising an
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// exception. Extra local arguments are passed in scratch
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// registers, as required type in O3, failing object (or NULL)
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// in O2, failing bytecode type in O1.
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__ mov(O5_savedSP, SP); // Cut the stack back to where the caller started.
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// Push arguments as if coming from the interpreter.
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Register O0_scratch = O0_argslot;
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int stackElementSize = Interpreter::stackElementSize();
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// Make space on the stack for the arguments.
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__ sub(SP, 4*stackElementSize, SP);
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__ sub(Gargs, 3*stackElementSize, Gargs);
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//__ sub(Lesp, 3*stackElementSize, Lesp);
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// void raiseException(int code, Object actual, Object required)
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__ st( O1_scratch, Address(Gargs, 2*stackElementSize)); // code
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__ st_ptr(O2_scratch, Address(Gargs, 1*stackElementSize)); // actual
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__ st_ptr(O3_scratch, Address(Gargs, 0*stackElementSize)); // required
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Label no_method;
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// FIXME: fill in _raise_exception_method with a suitable sun.dyn method
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__ set(AddressLiteral((address) &_raise_exception_method), G5_method);
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__ ld_ptr(Address(G5_method, 0), G5_method);
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__ tst(G5_method);
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__ brx(Assembler::zero, false, Assembler::pn, no_method);
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__ delayed()->nop();
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int jobject_oop_offset = 0;
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__ ld_ptr(Address(G5_method, jobject_oop_offset), G5_method);
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__ tst(G5_method);
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__ brx(Assembler::zero, false, Assembler::pn, no_method);
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__ delayed()->nop();
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__ verify_oop(G5_method);
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__ jump_indirect_to(G5_method_fie, O1_scratch);
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__ delayed()->nop();
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// If we get here, the Java runtime did not do its job of creating the exception.
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// Do something that is at least causes a valid throw from the interpreter.
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__ bind(no_method);
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__ unimplemented("_raise_exception no method");
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}
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break;
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case _invokestatic_mh:
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case _invokespecial_mh:
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{
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__ ld_ptr(G3_mh_vmtarget, G5_method); // target is a methodOop
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__ verify_oop(G5_method);
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// Same as TemplateTable::invokestatic or invokespecial,
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// minus the CP setup and profiling:
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if (ek == _invokespecial_mh) {
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// Must load & check the first argument before entering the target method.
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__ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch);
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__ ld_ptr(__ argument_address(O0_argslot), G3_method_handle);
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__ null_check(G3_method_handle);
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__ verify_oop(G3_method_handle);
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}
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__ jump_indirect_to(G5_method_fie, O1_scratch);
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__ delayed()->nop();
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}
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break;
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case _invokevirtual_mh:
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{
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// Same as TemplateTable::invokevirtual,
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// minus the CP setup and profiling:
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// Pick out the vtable index and receiver offset from the MH,
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// and then we can discard it:
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__ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch);
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__ ldsw(G3_dmh_vmindex, G5_index);
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// Note: The verifier allows us to ignore G3_mh_vmtarget.
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__ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle);
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__ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes());
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// Get receiver klass:
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Register O0_klass = O0_argslot;
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__ load_klass(G3_method_handle, O0_klass);
|
||||
__ verify_oop(O0_klass);
|
||||
|
||||
// Get target methodOop & entry point:
|
||||
const int base = instanceKlass::vtable_start_offset() * wordSize;
|
||||
assert(vtableEntry::size() * wordSize == wordSize, "adjust the scaling in the code below");
|
||||
|
||||
__ sll_ptr(G5_index, LogBytesPerWord, G5_index);
|
||||
__ add(O0_klass, G5_index, O0_klass);
|
||||
Address vtable_entry_addr(O0_klass, base + vtableEntry::method_offset_in_bytes());
|
||||
__ ld_ptr(vtable_entry_addr, G5_method);
|
||||
|
||||
__ verify_oop(G5_method);
|
||||
__ jump_indirect_to(G5_method_fie, O1_scratch);
|
||||
__ delayed()->nop();
|
||||
}
|
||||
break;
|
||||
|
||||
case _invokeinterface_mh:
|
||||
{
|
||||
// Same as TemplateTable::invokeinterface,
|
||||
// minus the CP setup and profiling:
|
||||
__ load_method_handle_vmslots(O0_argslot, G3_method_handle, O1_scratch);
|
||||
Register O1_intf = O1_scratch;
|
||||
__ ld_ptr(G3_mh_vmtarget, O1_intf);
|
||||
__ ldsw(G3_dmh_vmindex, G5_index);
|
||||
__ ld_ptr(__ argument_address(O0_argslot, -1), G3_method_handle);
|
||||
__ null_check(G3_method_handle, oopDesc::klass_offset_in_bytes());
|
||||
|
||||
// Get receiver klass:
|
||||
Register O0_klass = O0_argslot;
|
||||
__ load_klass(G3_method_handle, O0_klass);
|
||||
__ verify_oop(O0_klass);
|
||||
|
||||
// Get interface:
|
||||
Label no_such_interface;
|
||||
__ verify_oop(O1_intf);
|
||||
__ lookup_interface_method(O0_klass, O1_intf,
|
||||
// Note: next two args must be the same:
|
||||
G5_index, G5_method,
|
||||
O2_scratch,
|
||||
O3_scratch,
|
||||
no_such_interface);
|
||||
|
||||
__ verify_oop(G5_method);
|
||||
__ jump_indirect_to(G5_method_fie, O1_scratch);
|
||||
__ delayed()->nop();
|
||||
|
||||
__ bind(no_such_interface);
|
||||
// Throw an exception.
|
||||
// For historical reasons, it will be IncompatibleClassChangeError.
|
||||
__ unimplemented("not tested yet");
|
||||
__ ld_ptr(Address(O1_intf, java_mirror_offset), O3_scratch); // required interface
|
||||
__ mov(O0_klass, O2_scratch); // bad receiver
|
||||
__ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot);
|
||||
__ delayed()->mov(Bytecodes::_invokeinterface, O1_scratch); // who is complaining?
|
||||
}
|
||||
break;
|
||||
|
||||
case _bound_ref_mh:
|
||||
case _bound_int_mh:
|
||||
case _bound_long_mh:
|
||||
case _bound_ref_direct_mh:
|
||||
case _bound_int_direct_mh:
|
||||
case _bound_long_direct_mh:
|
||||
{
|
||||
const bool direct_to_method = (ek >= _bound_ref_direct_mh);
|
||||
BasicType arg_type = T_ILLEGAL;
|
||||
int arg_mask = _INSERT_NO_MASK;
|
||||
int arg_slots = -1;
|
||||
get_ek_bound_mh_info(ek, arg_type, arg_mask, arg_slots);
|
||||
|
||||
// Make room for the new argument:
|
||||
__ ldsw(G3_bmh_vmargslot, O0_argslot);
|
||||
__ add(Gargs, __ argument_offset(O0_argslot), O0_argslot);
|
||||
|
||||
insert_arg_slots(_masm, arg_slots * stack_move_unit(), arg_mask, O0_argslot, O1_scratch, O2_scratch, G5_index);
|
||||
|
||||
// Store bound argument into the new stack slot:
|
||||
__ ld_ptr(G3_bmh_argument, O1_scratch);
|
||||
if (arg_type == T_OBJECT) {
|
||||
__ st_ptr(O1_scratch, Address(O0_argslot, 0));
|
||||
} else {
|
||||
Address prim_value_addr(O1_scratch, java_lang_boxing_object::value_offset_in_bytes(arg_type));
|
||||
__ load_sized_value(prim_value_addr, O2_scratch, type2aelembytes(arg_type), is_signed_subword_type(arg_type));
|
||||
if (arg_slots == 2) {
|
||||
__ unimplemented("not yet tested");
|
||||
#ifndef _LP64
|
||||
__ signx(O2_scratch, O3_scratch); // Sign extend
|
||||
#endif
|
||||
__ st_long(O2_scratch, Address(O0_argslot, 0)); // Uses O2/O3 on !_LP64
|
||||
} else {
|
||||
__ st_ptr( O2_scratch, Address(O0_argslot, 0));
|
||||
}
|
||||
}
|
||||
|
||||
if (direct_to_method) {
|
||||
__ ld_ptr(G3_mh_vmtarget, G5_method); // target is a methodOop
|
||||
__ verify_oop(G5_method);
|
||||
__ jump_indirect_to(G5_method_fie, O1_scratch);
|
||||
__ delayed()->nop();
|
||||
} else {
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle); // target is a methodOop
|
||||
__ verify_oop(G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_retype_only:
|
||||
case _adapter_retype_raw:
|
||||
// Immediately jump to the next MH layer:
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
// This is OK when all parameter types widen.
|
||||
// It is also OK when a return type narrows.
|
||||
break;
|
||||
|
||||
case _adapter_check_cast:
|
||||
{
|
||||
// Temps:
|
||||
Register G5_klass = G5_index; // Interesting AMH data.
|
||||
|
||||
// Check a reference argument before jumping to the next layer of MH:
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot);
|
||||
Address vmarg = __ argument_address(O0_argslot);
|
||||
|
||||
// What class are we casting to?
|
||||
__ ld_ptr(G3_amh_argument, G5_klass); // This is a Class object!
|
||||
__ ld_ptr(Address(G5_klass, java_lang_Class::klass_offset_in_bytes()), G5_klass);
|
||||
|
||||
Label done;
|
||||
__ ld_ptr(vmarg, O1_scratch);
|
||||
__ tst(O1_scratch);
|
||||
__ brx(Assembler::zero, false, Assembler::pn, done); // No cast if null.
|
||||
__ delayed()->nop();
|
||||
__ load_klass(O1_scratch, O1_scratch);
|
||||
|
||||
// Live at this point:
|
||||
// - G5_klass : klass required by the target method
|
||||
// - O1_scratch : argument klass to test
|
||||
// - G3_method_handle: adapter method handle
|
||||
__ check_klass_subtype(O1_scratch, G5_klass, O0_argslot, O2_scratch, done);
|
||||
|
||||
// If we get here, the type check failed!
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot); // reload argslot field
|
||||
__ ld_ptr(G3_amh_argument, O3_scratch); // required class
|
||||
__ ld_ptr(vmarg, O2_scratch); // bad object
|
||||
__ jump_to(AddressLiteral(from_interpreted_entry(_raise_exception)), O0_argslot);
|
||||
__ delayed()->mov(Bytecodes::_checkcast, O1_scratch); // who is complaining?
|
||||
|
||||
__ bind(done);
|
||||
// Get the new MH:
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_prim_to_prim:
|
||||
case _adapter_ref_to_prim:
|
||||
// Handled completely by optimized cases.
|
||||
__ stop("init_AdapterMethodHandle should not issue this");
|
||||
break;
|
||||
|
||||
case _adapter_opt_i2i: // optimized subcase of adapt_prim_to_prim
|
||||
//case _adapter_opt_f2i: // optimized subcase of adapt_prim_to_prim
|
||||
case _adapter_opt_l2i: // optimized subcase of adapt_prim_to_prim
|
||||
case _adapter_opt_unboxi: // optimized subcase of adapt_ref_to_prim
|
||||
{
|
||||
// Perform an in-place conversion to int or an int subword.
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot);
|
||||
Address vmarg = __ argument_address(O0_argslot);
|
||||
Address value;
|
||||
bool value_left_justified = false;
|
||||
|
||||
switch (ek) {
|
||||
case _adapter_opt_i2i:
|
||||
case _adapter_opt_l2i:
|
||||
__ unimplemented(entry_name(ek));
|
||||
value = vmarg;
|
||||
break;
|
||||
case _adapter_opt_unboxi:
|
||||
{
|
||||
// Load the value up from the heap.
|
||||
__ ld_ptr(vmarg, O1_scratch);
|
||||
int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_INT);
|
||||
#ifdef ASSERT
|
||||
for (int bt = T_BOOLEAN; bt < T_INT; bt++) {
|
||||
if (is_subword_type(BasicType(bt)))
|
||||
assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(BasicType(bt)), "");
|
||||
}
|
||||
#endif
|
||||
__ null_check(O1_scratch, value_offset);
|
||||
value = Address(O1_scratch, value_offset);
|
||||
#ifdef _BIG_ENDIAN
|
||||
// Values stored in objects are packed.
|
||||
value_left_justified = true;
|
||||
#endif
|
||||
}
|
||||
break;
|
||||
default:
|
||||
ShouldNotReachHere();
|
||||
}
|
||||
|
||||
// This check is required on _BIG_ENDIAN
|
||||
Register G5_vminfo = G5_index;
|
||||
__ ldsw(G3_amh_conversion, G5_vminfo);
|
||||
assert(CONV_VMINFO_SHIFT == 0, "preshifted");
|
||||
|
||||
// Original 32-bit vmdata word must be of this form:
|
||||
// | MBZ:6 | signBitCount:8 | srcDstTypes:8 | conversionOp:8 |
|
||||
__ lduw(value, O1_scratch);
|
||||
if (!value_left_justified)
|
||||
__ sll(O1_scratch, G5_vminfo, O1_scratch);
|
||||
Label zero_extend, done;
|
||||
__ btst(CONV_VMINFO_SIGN_FLAG, G5_vminfo);
|
||||
__ br(Assembler::zero, false, Assembler::pn, zero_extend);
|
||||
__ delayed()->nop();
|
||||
|
||||
// this path is taken for int->byte, int->short
|
||||
__ sra(O1_scratch, G5_vminfo, O1_scratch);
|
||||
__ ba(false, done);
|
||||
__ delayed()->nop();
|
||||
|
||||
__ bind(zero_extend);
|
||||
// this is taken for int->char
|
||||
__ srl(O1_scratch, G5_vminfo, O1_scratch);
|
||||
|
||||
__ bind(done);
|
||||
__ st(O1_scratch, vmarg);
|
||||
|
||||
// Get the new MH:
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_opt_i2l: // optimized subcase of adapt_prim_to_prim
|
||||
case _adapter_opt_unboxl: // optimized subcase of adapt_ref_to_prim
|
||||
{
|
||||
// Perform an in-place int-to-long or ref-to-long conversion.
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot);
|
||||
|
||||
// On big-endian machine we duplicate the slot and store the MSW
|
||||
// in the first slot.
|
||||
__ add(Gargs, __ argument_offset(O0_argslot, 1), O0_argslot);
|
||||
|
||||
insert_arg_slots(_masm, stack_move_unit(), _INSERT_INT_MASK, O0_argslot, O1_scratch, O2_scratch, G5_index);
|
||||
|
||||
Address arg_lsw(O0_argslot, 0);
|
||||
Address arg_msw(O0_argslot, -Interpreter::stackElementSize());
|
||||
|
||||
switch (ek) {
|
||||
case _adapter_opt_i2l:
|
||||
{
|
||||
__ ldsw(arg_lsw, O2_scratch); // Load LSW
|
||||
#ifndef _LP64
|
||||
__ signx(O2_scratch, O3_scratch); // Sign extend
|
||||
#endif
|
||||
__ st_long(O2_scratch, arg_msw); // Uses O2/O3 on !_LP64
|
||||
}
|
||||
break;
|
||||
case _adapter_opt_unboxl:
|
||||
{
|
||||
// Load the value up from the heap.
|
||||
__ ld_ptr(arg_lsw, O1_scratch);
|
||||
int value_offset = java_lang_boxing_object::value_offset_in_bytes(T_LONG);
|
||||
assert(value_offset == java_lang_boxing_object::value_offset_in_bytes(T_DOUBLE), "");
|
||||
__ null_check(O1_scratch, value_offset);
|
||||
__ ld_long(Address(O1_scratch, value_offset), O2_scratch); // Uses O2/O3 on !_LP64
|
||||
__ st_long(O2_scratch, arg_msw);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
ShouldNotReachHere();
|
||||
}
|
||||
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_opt_f2d: // optimized subcase of adapt_prim_to_prim
|
||||
case _adapter_opt_d2f: // optimized subcase of adapt_prim_to_prim
|
||||
{
|
||||
// perform an in-place floating primitive conversion
|
||||
__ unimplemented(entry_name(ek));
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_prim_to_ref:
|
||||
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI
|
||||
break;
|
||||
|
||||
case _adapter_swap_args:
|
||||
case _adapter_rot_args:
|
||||
// handled completely by optimized cases
|
||||
__ stop("init_AdapterMethodHandle should not issue this");
|
||||
break;
|
||||
|
||||
case _adapter_opt_swap_1:
|
||||
case _adapter_opt_swap_2:
|
||||
case _adapter_opt_rot_1_up:
|
||||
case _adapter_opt_rot_1_down:
|
||||
case _adapter_opt_rot_2_up:
|
||||
case _adapter_opt_rot_2_down:
|
||||
{
|
||||
int swap_bytes = 0, rotate = 0;
|
||||
get_ek_adapter_opt_swap_rot_info(ek, swap_bytes, rotate);
|
||||
|
||||
// 'argslot' is the position of the first argument to swap.
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot);
|
||||
__ add(Gargs, __ argument_offset(O0_argslot), O0_argslot);
|
||||
|
||||
// 'vminfo' is the second.
|
||||
Register O1_destslot = O1_scratch;
|
||||
__ ldsw(G3_amh_conversion, O1_destslot);
|
||||
assert(CONV_VMINFO_SHIFT == 0, "preshifted");
|
||||
__ and3(O1_destslot, CONV_VMINFO_MASK, O1_destslot);
|
||||
__ add(Gargs, __ argument_offset(O1_destslot), O1_destslot);
|
||||
|
||||
if (!rotate) {
|
||||
for (int i = 0; i < swap_bytes; i += wordSize) {
|
||||
__ ld_ptr(Address(O0_argslot, i), O2_scratch);
|
||||
__ ld_ptr(Address(O1_destslot, i), O3_scratch);
|
||||
__ st_ptr(O3_scratch, Address(O0_argslot, i));
|
||||
__ st_ptr(O2_scratch, Address(O1_destslot, i));
|
||||
}
|
||||
} else {
|
||||
// Save the first chunk, which is going to get overwritten.
|
||||
switch (swap_bytes) {
|
||||
case 4 : __ lduw(Address(O0_argslot, 0), O2_scratch); break;
|
||||
case 16: __ ldx( Address(O0_argslot, 8), O3_scratch); //fall-thru
|
||||
case 8 : __ ldx( Address(O0_argslot, 0), O2_scratch); break;
|
||||
default: ShouldNotReachHere();
|
||||
}
|
||||
|
||||
if (rotate > 0) {
|
||||
// Rorate upward.
|
||||
__ sub(O0_argslot, swap_bytes, O0_argslot);
|
||||
#if ASSERT
|
||||
{
|
||||
// Verify that argslot > destslot, by at least swap_bytes.
|
||||
Label L_ok;
|
||||
__ cmp(O0_argslot, O1_destslot);
|
||||
__ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, L_ok);
|
||||
__ delayed()->nop();
|
||||
__ stop("source must be above destination (upward rotation)");
|
||||
__ bind(L_ok);
|
||||
}
|
||||
#endif
|
||||
// Work argslot down to destslot, copying contiguous data upwards.
|
||||
// Pseudo-code:
|
||||
// argslot = src_addr - swap_bytes
|
||||
// destslot = dest_addr
|
||||
// while (argslot >= destslot) {
|
||||
// *(argslot + swap_bytes) = *(argslot + 0);
|
||||
// argslot--;
|
||||
// }
|
||||
Label loop;
|
||||
__ bind(loop);
|
||||
__ ld_ptr(Address(O0_argslot, 0), G5_index);
|
||||
__ st_ptr(G5_index, Address(O0_argslot, swap_bytes));
|
||||
__ sub(O0_argslot, wordSize, O0_argslot);
|
||||
__ cmp(O0_argslot, O1_destslot);
|
||||
__ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, loop);
|
||||
__ delayed()->nop(); // FILLME
|
||||
} else {
|
||||
__ add(O0_argslot, swap_bytes, O0_argslot);
|
||||
#if ASSERT
|
||||
{
|
||||
// Verify that argslot < destslot, by at least swap_bytes.
|
||||
Label L_ok;
|
||||
__ cmp(O0_argslot, O1_destslot);
|
||||
__ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, L_ok);
|
||||
__ delayed()->nop();
|
||||
__ stop("source must be above destination (upward rotation)");
|
||||
__ bind(L_ok);
|
||||
}
|
||||
#endif
|
||||
// Work argslot up to destslot, copying contiguous data downwards.
|
||||
// Pseudo-code:
|
||||
// argslot = src_addr + swap_bytes
|
||||
// destslot = dest_addr
|
||||
// while (argslot >= destslot) {
|
||||
// *(argslot - swap_bytes) = *(argslot + 0);
|
||||
// argslot++;
|
||||
// }
|
||||
Label loop;
|
||||
__ bind(loop);
|
||||
__ ld_ptr(Address(O0_argslot, 0), G5_index);
|
||||
__ st_ptr(G5_index, Address(O0_argslot, -swap_bytes));
|
||||
__ add(O0_argslot, wordSize, O0_argslot);
|
||||
__ cmp(O0_argslot, O1_destslot);
|
||||
__ brx(Assembler::lessEqualUnsigned, false, Assembler::pt, loop);
|
||||
__ delayed()->nop(); // FILLME
|
||||
}
|
||||
|
||||
// Store the original first chunk into the destination slot, now free.
|
||||
switch (swap_bytes) {
|
||||
case 4 : __ stw(O2_scratch, Address(O1_destslot, 0)); break;
|
||||
case 16: __ stx(O3_scratch, Address(O1_destslot, 8)); // fall-thru
|
||||
case 8 : __ stx(O2_scratch, Address(O1_destslot, 0)); break;
|
||||
default: ShouldNotReachHere();
|
||||
}
|
||||
}
|
||||
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_dup_args:
|
||||
{
|
||||
// 'argslot' is the position of the first argument to duplicate.
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot);
|
||||
__ add(Gargs, __ argument_offset(O0_argslot), O0_argslot);
|
||||
|
||||
// 'stack_move' is negative number of words to duplicate.
|
||||
Register G5_stack_move = G5_index;
|
||||
__ ldsw(G3_amh_conversion, G5_stack_move);
|
||||
__ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move);
|
||||
|
||||
// Remember the old Gargs (argslot[0]).
|
||||
Register O1_oldarg = O1_scratch;
|
||||
__ mov(Gargs, O1_oldarg);
|
||||
|
||||
// Move Gargs down to make room for dups.
|
||||
__ sll_ptr(G5_stack_move, LogBytesPerWord, G5_stack_move);
|
||||
__ add(Gargs, G5_stack_move, Gargs);
|
||||
|
||||
// Compute the new Gargs (argslot[0]).
|
||||
Register O2_newarg = O2_scratch;
|
||||
__ mov(Gargs, O2_newarg);
|
||||
|
||||
// Copy from oldarg[0...] down to newarg[0...]
|
||||
// Pseude-code:
|
||||
// O1_oldarg = old-Gargs
|
||||
// O2_newarg = new-Gargs
|
||||
// O0_argslot = argslot
|
||||
// while (O2_newarg < O1_oldarg) *O2_newarg = *O0_argslot++
|
||||
Label loop;
|
||||
__ bind(loop);
|
||||
__ ld_ptr(Address(O0_argslot, 0), O3_scratch);
|
||||
__ st_ptr(O3_scratch, Address(O2_newarg, 0));
|
||||
__ add(O0_argslot, wordSize, O0_argslot);
|
||||
__ add(O2_newarg, wordSize, O2_newarg);
|
||||
__ cmp(O2_newarg, O1_oldarg);
|
||||
__ brx(Assembler::less, false, Assembler::pt, loop);
|
||||
__ delayed()->nop(); // FILLME
|
||||
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_drop_args:
|
||||
{
|
||||
// 'argslot' is the position of the first argument to nuke.
|
||||
__ ldsw(G3_amh_vmargslot, O0_argslot);
|
||||
__ add(Gargs, __ argument_offset(O0_argslot), O0_argslot);
|
||||
|
||||
// 'stack_move' is number of words to drop.
|
||||
Register G5_stack_move = G5_index;
|
||||
__ ldsw(G3_amh_conversion, G5_stack_move);
|
||||
__ sra(G5_stack_move, CONV_STACK_MOVE_SHIFT, G5_stack_move);
|
||||
|
||||
remove_arg_slots(_masm, G5_stack_move, O0_argslot, O1_scratch, O2_scratch, O3_scratch);
|
||||
|
||||
__ ld_ptr(G3_mh_vmtarget, G3_method_handle);
|
||||
__ jump_to_method_handle_entry(G3_method_handle, O1_scratch);
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_collect_args:
|
||||
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI
|
||||
break;
|
||||
|
||||
case _adapter_spread_args:
|
||||
// Handled completely by optimized cases.
|
||||
__ stop("init_AdapterMethodHandle should not issue this");
|
||||
break;
|
||||
|
||||
case _adapter_opt_spread_0:
|
||||
case _adapter_opt_spread_1:
|
||||
case _adapter_opt_spread_more:
|
||||
{
|
||||
// spread an array out into a group of arguments
|
||||
__ unimplemented(entry_name(ek));
|
||||
}
|
||||
break;
|
||||
|
||||
case _adapter_flyby:
|
||||
case _adapter_ricochet:
|
||||
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI
|
||||
break;
|
||||
|
||||
default:
|
||||
ShouldNotReachHere();
|
||||
}
|
||||
|
||||
address me_cookie = MethodHandleEntry::start_compiled_entry(_masm, interp_entry);
|
||||
__ unimplemented(entry_name(ek)); // %%% FIXME: NYI
|
||||
|
||||
init_entry(ek, MethodHandleEntry::finish_compiled_entry(_masm, me_cookie));
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue