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comparison src/cpu/x86/vm/assembler_x86.cpp @ 3938:e6b1331a51d2

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7086585: make Java field injection more flexible Reviewed-by: jrose, twisti, kvn, coleenp
author never
date Sat, 10 Sep 2011 17:29:02 -0700
parents a594deb1d6dc
children 59bc0d4d9ea3
comparison
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3937:c565834fb592 3938:e6b1331a51d2
8002 // method handle's MethodType. This macro hides the distinction. 8002 // method handle's MethodType. This macro hides the distinction.
8003 void MacroAssembler::load_method_handle_vmslots(Register vmslots_reg, Register mh_reg, 8003 void MacroAssembler::load_method_handle_vmslots(Register vmslots_reg, Register mh_reg,
8004 Register temp_reg) { 8004 Register temp_reg) {
8005 assert_different_registers(vmslots_reg, mh_reg, temp_reg); 8005 assert_different_registers(vmslots_reg, mh_reg, temp_reg);
8006 // load mh.type.form.vmslots 8006 // load mh.type.form.vmslots
8007 if (java_lang_invoke_MethodHandle::vmslots_offset_in_bytes() != 0) { 8007 Register temp2_reg = vmslots_reg;
8008 // hoist vmslots into every mh to avoid dependent load chain 8008 load_heap_oop(temp2_reg, Address(mh_reg, delayed_value(java_lang_invoke_MethodHandle::type_offset_in_bytes, temp_reg)));
8009 movl(vmslots_reg, Address(mh_reg, delayed_value(java_lang_invoke_MethodHandle::vmslots_offset_in_bytes, temp_reg))); 8009 load_heap_oop(temp2_reg, Address(temp2_reg, delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, temp_reg)));
8010 } else { 8010 movl(vmslots_reg, Address(temp2_reg, delayed_value(java_lang_invoke_MethodTypeForm::vmslots_offset_in_bytes, temp_reg)));
8011 Register temp2_reg = vmslots_reg;
8012 load_heap_oop(temp2_reg, Address(mh_reg, delayed_value(java_lang_invoke_MethodHandle::type_offset_in_bytes, temp_reg)));
8013 load_heap_oop(temp2_reg, Address(temp2_reg, delayed_value(java_lang_invoke_MethodType::form_offset_in_bytes, temp_reg)));
8014 movl(vmslots_reg, Address(temp2_reg, delayed_value(java_lang_invoke_MethodTypeForm::vmslots_offset_in_bytes, temp_reg)));
8015 }
8016 } 8011 }
8017 8012
8018 8013
8019 // registers on entry: 8014 // registers on entry:
8020 // - rcx: method handle 8015 // - rcx: method handle