2369 //
2370 // Actually only compiled frames need to be adjusted, but it
2371 // doesn't harm to adjust entry and interpreter frames, too.
2372 //
2373 int Deoptimization::last_frame_adjust(int callee_parameters, int callee_locals) {
2374 assert(callee_locals >= callee_parameters,
2375 "test and remove; got more parms than locals");
2376 // Handle the abi adjustment here instead of doing it in push_skeleton_frames.
2377 return (callee_locals - callee_parameters) * Interpreter::stackElementWords +
2378 frame::z_parent_ijava_frame_abi_size / BytesPerWord;
2379 }
2380
2381 uint SharedRuntime::in_preserve_stack_slots() {
2382 return frame::jit_in_preserve_size_in_4_byte_units;
2383 }
2384
2385 uint SharedRuntime::out_preserve_stack_slots() {
2386 return frame::z_jit_out_preserve_size/VMRegImpl::stack_slot_size;
2387 }
2388
2389 //
2390 // Frame generation for deopt and uncommon trap blobs.
2391 //
2392 static void push_skeleton_frame(MacroAssembler* masm,
2393 /* Unchanged */
2394 Register frame_sizes_reg,
2395 Register pcs_reg,
2396 /* Invalidate */
2397 Register frame_size_reg,
2398 Register pc_reg) {
2399 BLOCK_COMMENT(" push_skeleton_frame {");
2400 __ z_lg(pc_reg, 0, pcs_reg);
2401 __ z_lg(frame_size_reg, 0, frame_sizes_reg);
2402 __ z_stg(pc_reg, _z_abi(return_pc), Z_SP);
2403 Register fp = pc_reg;
2404 __ push_frame(frame_size_reg, fp);
2405 #ifdef ASSERT
2406 // The magic is required for successful walking skeletal frames.
2407 __ load_const_optimized(frame_size_reg/*tmp*/, frame::z_istate_magic_number);
2408 __ z_stg(frame_size_reg, _z_ijava_state_neg(magic), fp);
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2369 //
2370 // Actually only compiled frames need to be adjusted, but it
2371 // doesn't harm to adjust entry and interpreter frames, too.
2372 //
2373 int Deoptimization::last_frame_adjust(int callee_parameters, int callee_locals) {
2374 assert(callee_locals >= callee_parameters,
2375 "test and remove; got more parms than locals");
2376 // Handle the abi adjustment here instead of doing it in push_skeleton_frames.
2377 return (callee_locals - callee_parameters) * Interpreter::stackElementWords +
2378 frame::z_parent_ijava_frame_abi_size / BytesPerWord;
2379 }
2380
2381 uint SharedRuntime::in_preserve_stack_slots() {
2382 return frame::jit_in_preserve_size_in_4_byte_units;
2383 }
2384
2385 uint SharedRuntime::out_preserve_stack_slots() {
2386 return frame::z_jit_out_preserve_size/VMRegImpl::stack_slot_size;
2387 }
2388
2389 VMReg SharedRuntime::thread_register() {
2390 Unimplemented();
2391 return nullptr;
2392 }
2393
2394 //
2395 // Frame generation for deopt and uncommon trap blobs.
2396 //
2397 static void push_skeleton_frame(MacroAssembler* masm,
2398 /* Unchanged */
2399 Register frame_sizes_reg,
2400 Register pcs_reg,
2401 /* Invalidate */
2402 Register frame_size_reg,
2403 Register pc_reg) {
2404 BLOCK_COMMENT(" push_skeleton_frame {");
2405 __ z_lg(pc_reg, 0, pcs_reg);
2406 __ z_lg(frame_size_reg, 0, frame_sizes_reg);
2407 __ z_stg(pc_reg, _z_abi(return_pc), Z_SP);
2408 Register fp = pc_reg;
2409 __ push_frame(frame_size_reg, fp);
2410 #ifdef ASSERT
2411 // The magic is required for successful walking skeletal frames.
2412 __ load_const_optimized(frame_size_reg/*tmp*/, frame::z_istate_magic_number);
2413 __ z_stg(frame_size_reg, _z_ijava_state_neg(magic), fp);
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