--- /dev/null 2021-01-19 17:38:25.908523431 +0000 +++ new/src/cpu/aarch64/vm/c1_FrameMap_aarch64.cpp 2021-01-25 19:31:30.788413956 +0000 @@ -0,0 +1,361 @@ +/* + * Copyright (c) 2013, Red Hat Inc. + * Copyright (c) 1999, 2010, Oracle and/or its affiliates. + * All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#include "precompiled.hpp" +#include "c1/c1_FrameMap.hpp" +#include "c1/c1_LIR.hpp" +#include "runtime/sharedRuntime.hpp" +#include "vmreg_aarch64.inline.hpp" + +LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool) { + LIR_Opr opr = LIR_OprFact::illegalOpr; + VMReg r_1 = reg->first(); + VMReg r_2 = reg->second(); + if (r_1->is_stack()) { + // Convert stack slot to an SP offset + // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value + // so we must add it in here. + int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size; + opr = LIR_OprFact::address(new LIR_Address(sp_opr, st_off, type)); + } else if (r_1->is_Register()) { + Register reg = r_1->as_Register(); + if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) { + Register reg2 = r_2->as_Register(); +#ifdef _LP64 + assert(reg2 == reg, "must be same register"); + opr = as_long_opr(reg); +#else + opr = as_long_opr(reg2, reg); +#endif // _LP64 + } else if (type == T_OBJECT || type == T_ARRAY) { + opr = as_oop_opr(reg); + } else if (type == T_METADATA) { + opr = as_metadata_opr(reg); + } else { + opr = as_opr(reg); + } + } else if (r_1->is_FloatRegister()) { + assert(type == T_DOUBLE || type == T_FLOAT, "wrong type"); + int num = r_1->as_FloatRegister()->encoding(); + if (type == T_FLOAT) { + opr = LIR_OprFact::single_fpu(num); + } else { + opr = LIR_OprFact::double_fpu(num); + } + } else { + ShouldNotReachHere(); + } + return opr; +} + +LIR_Opr FrameMap::r0_opr; +LIR_Opr FrameMap::r1_opr; +LIR_Opr FrameMap::r2_opr; +LIR_Opr FrameMap::r3_opr; +LIR_Opr FrameMap::r4_opr; +LIR_Opr FrameMap::r5_opr; +LIR_Opr FrameMap::r6_opr; +LIR_Opr FrameMap::r7_opr; +LIR_Opr FrameMap::r8_opr; +LIR_Opr FrameMap::r9_opr; +LIR_Opr FrameMap::r10_opr; +LIR_Opr FrameMap::r11_opr; +LIR_Opr FrameMap::r12_opr; +LIR_Opr FrameMap::r13_opr; +LIR_Opr FrameMap::r14_opr; +LIR_Opr FrameMap::r15_opr; +LIR_Opr FrameMap::r16_opr; +LIR_Opr FrameMap::r17_opr; +LIR_Opr FrameMap::r18_opr; +LIR_Opr FrameMap::r19_opr; +LIR_Opr FrameMap::r20_opr; +LIR_Opr FrameMap::r21_opr; +LIR_Opr FrameMap::r22_opr; +LIR_Opr FrameMap::r23_opr; +LIR_Opr FrameMap::r24_opr; +LIR_Opr FrameMap::r25_opr; +LIR_Opr FrameMap::r26_opr; +LIR_Opr FrameMap::r27_opr; +LIR_Opr FrameMap::r28_opr; +LIR_Opr FrameMap::r29_opr; +LIR_Opr FrameMap::r30_opr; + +LIR_Opr FrameMap::rfp_opr; +LIR_Opr FrameMap::sp_opr; + +LIR_Opr FrameMap::receiver_opr; + +LIR_Opr FrameMap::r0_oop_opr; +LIR_Opr FrameMap::r1_oop_opr; +LIR_Opr FrameMap::r2_oop_opr; +LIR_Opr FrameMap::r3_oop_opr; +LIR_Opr FrameMap::r4_oop_opr; +LIR_Opr FrameMap::r5_oop_opr; +LIR_Opr FrameMap::r6_oop_opr; +LIR_Opr FrameMap::r7_oop_opr; +LIR_Opr FrameMap::r8_oop_opr; +LIR_Opr FrameMap::r9_oop_opr; +LIR_Opr FrameMap::r10_oop_opr; +LIR_Opr FrameMap::r11_oop_opr; +LIR_Opr FrameMap::r12_oop_opr; +LIR_Opr FrameMap::r13_oop_opr; +LIR_Opr FrameMap::r14_oop_opr; +LIR_Opr FrameMap::r15_oop_opr; +LIR_Opr FrameMap::r16_oop_opr; +LIR_Opr FrameMap::r17_oop_opr; +LIR_Opr FrameMap::r18_oop_opr; +LIR_Opr FrameMap::r19_oop_opr; +LIR_Opr FrameMap::r20_oop_opr; +LIR_Opr FrameMap::r21_oop_opr; +LIR_Opr FrameMap::r22_oop_opr; +LIR_Opr FrameMap::r23_oop_opr; +LIR_Opr FrameMap::r24_oop_opr; +LIR_Opr FrameMap::r25_oop_opr; +LIR_Opr FrameMap::r26_oop_opr; +LIR_Opr FrameMap::r27_oop_opr; +LIR_Opr FrameMap::r28_oop_opr; +LIR_Opr FrameMap::r29_oop_opr; +LIR_Opr FrameMap::r30_oop_opr; + +LIR_Opr FrameMap::rscratch1_opr; +LIR_Opr FrameMap::rscratch2_opr; +LIR_Opr FrameMap::rscratch1_long_opr; +LIR_Opr FrameMap::rscratch2_long_opr; + +LIR_Opr FrameMap::r0_metadata_opr; +LIR_Opr FrameMap::r1_metadata_opr; +LIR_Opr FrameMap::r2_metadata_opr; +LIR_Opr FrameMap::r3_metadata_opr; +LIR_Opr FrameMap::r4_metadata_opr; +LIR_Opr FrameMap::r5_metadata_opr; + +LIR_Opr FrameMap::long0_opr; +LIR_Opr FrameMap::long1_opr; +LIR_Opr FrameMap::fpu0_float_opr; +LIR_Opr FrameMap::fpu0_double_opr; + +LIR_Opr FrameMap::_caller_save_cpu_regs[] = { 0, }; +LIR_Opr FrameMap::_caller_save_fpu_regs[] = { 0, }; + +//-------------------------------------------------------- +// FrameMap +//-------------------------------------------------------- + +void FrameMap::initialize() { + assert(!_init_done, "once"); + + int i=0; + map_register(i, r0); r0_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r1); r1_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r2); r2_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r3); r3_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r4); r4_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r5); r5_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r6); r6_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r7); r7_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r10); r10_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r11); r11_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r12); r12_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r13); r13_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r14); r14_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r15); r15_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r16); r16_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r17); r17_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r18); r18_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r19); r19_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r20); r20_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r21); r21_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r22); r22_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r23); r23_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r24); r24_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r25); r25_opr = LIR_OprFact::single_cpu(i); i++; + map_register(i, r26); r26_opr = LIR_OprFact::single_cpu(i); i++; + + map_register(i, r27); r27_opr = LIR_OprFact::single_cpu(i); i++; // rheapbase + map_register(i, r28); r28_opr = LIR_OprFact::single_cpu(i); i++; // rthread + map_register(i, r29); r29_opr = LIR_OprFact::single_cpu(i); i++; // rfp + map_register(i, r30); r30_opr = LIR_OprFact::single_cpu(i); i++; // lr + map_register(i, r31_sp); sp_opr = LIR_OprFact::single_cpu(i); i++; // sp + map_register(i, r8); r8_opr = LIR_OprFact::single_cpu(i); i++; // rscratch1 + map_register(i, r9); r9_opr = LIR_OprFact::single_cpu(i); i++; // rscratch2 + + rscratch1_opr = r8_opr; + rscratch2_opr = r9_opr; + rscratch1_long_opr = LIR_OprFact::double_cpu(r8_opr->cpu_regnr(), r8_opr->cpu_regnr()); + rscratch2_long_opr = LIR_OprFact::double_cpu(r9_opr->cpu_regnr(), r9_opr->cpu_regnr()); + + long0_opr = LIR_OprFact::double_cpu(0, 0); + long1_opr = LIR_OprFact::double_cpu(1, 1); + + fpu0_float_opr = LIR_OprFact::single_fpu(0); + fpu0_double_opr = LIR_OprFact::double_fpu(0); + + _caller_save_cpu_regs[0] = r0_opr; + _caller_save_cpu_regs[1] = r1_opr; + _caller_save_cpu_regs[2] = r2_opr; + _caller_save_cpu_regs[3] = r3_opr; + _caller_save_cpu_regs[4] = r4_opr; + _caller_save_cpu_regs[5] = r5_opr; + _caller_save_cpu_regs[6] = r6_opr; + _caller_save_cpu_regs[7] = r7_opr; + // rscratch1, rscratch 2 not included + _caller_save_cpu_regs[8] = r10_opr; + _caller_save_cpu_regs[9] = r11_opr; + _caller_save_cpu_regs[10] = r12_opr; + _caller_save_cpu_regs[11] = r13_opr; + _caller_save_cpu_regs[12] = r14_opr; + _caller_save_cpu_regs[13] = r15_opr; + _caller_save_cpu_regs[14] = r16_opr; + _caller_save_cpu_regs[15] = r17_opr; + _caller_save_cpu_regs[16] = r18_opr; + + for (int i = 0; i < 8; i++) { + _caller_save_fpu_regs[i] = LIR_OprFact::single_fpu(i); + } + + _init_done = true; + + r0_oop_opr = as_oop_opr(r0); + r1_oop_opr = as_oop_opr(r1); + r2_oop_opr = as_oop_opr(r2); + r3_oop_opr = as_oop_opr(r3); + r4_oop_opr = as_oop_opr(r4); + r5_oop_opr = as_oop_opr(r5); + r6_oop_opr = as_oop_opr(r6); + r7_oop_opr = as_oop_opr(r7); + r8_oop_opr = as_oop_opr(r8); + r9_oop_opr = as_oop_opr(r9); + r10_oop_opr = as_oop_opr(r10); + r11_oop_opr = as_oop_opr(r11); + r12_oop_opr = as_oop_opr(r12); + r13_oop_opr = as_oop_opr(r13); + r14_oop_opr = as_oop_opr(r14); + r15_oop_opr = as_oop_opr(r15); + r16_oop_opr = as_oop_opr(r16); + r17_oop_opr = as_oop_opr(r17); + r18_oop_opr = as_oop_opr(r18); + r19_oop_opr = as_oop_opr(r19); + r20_oop_opr = as_oop_opr(r20); + r21_oop_opr = as_oop_opr(r21); + r22_oop_opr = as_oop_opr(r22); + r23_oop_opr = as_oop_opr(r23); + r24_oop_opr = as_oop_opr(r24); + r25_oop_opr = as_oop_opr(r25); + r26_oop_opr = as_oop_opr(r26); + r27_oop_opr = as_oop_opr(r27); + r28_oop_opr = as_oop_opr(r28); + r29_oop_opr = as_oop_opr(r29); + r30_oop_opr = as_oop_opr(r30); + + r0_metadata_opr = as_metadata_opr(r0); + r1_metadata_opr = as_metadata_opr(r1); + r2_metadata_opr = as_metadata_opr(r2); + r3_metadata_opr = as_metadata_opr(r3); + r4_metadata_opr = as_metadata_opr(r4); + r5_metadata_opr = as_metadata_opr(r5); + + sp_opr = as_pointer_opr(r31_sp); + rfp_opr = as_pointer_opr(rfp); + + VMRegPair regs; + BasicType sig_bt = T_OBJECT; + SharedRuntime::java_calling_convention(&sig_bt, ®s, 1, true); + receiver_opr = as_oop_opr(regs.first()->as_Register()); + + for (int i = 0; i < nof_caller_save_fpu_regs; i++) { + _caller_save_fpu_regs[i] = LIR_OprFact::single_fpu(i); + } +} + + +Address FrameMap::make_new_address(ByteSize sp_offset) const { + // for rbp, based address use this: + // return Address(rbp, in_bytes(sp_offset) - (framesize() - 2) * 4); + return Address(sp, in_bytes(sp_offset)); +} + + +// ----------------mapping----------------------- +// all mapping is based on rfp addressing, except for simple leaf methods where we access +// the locals sp based (and no frame is built) + + +// Frame for simple leaf methods (quick entries) +// +// +----------+ +// | ret addr | <- TOS +// +----------+ +// | args | +// | ...... | + +// Frame for standard methods +// +// | .........| <- TOS +// | locals | +// +----------+ +// | old fp, | <- RFP +// +----------+ +// | ret addr | +// +----------+ +// | args | +// | .........| + + +// For OopMaps, map a local variable or spill index to an VMRegImpl name. +// This is the offset from sp() in the frame of the slot for the index, +// skewed by VMRegImpl::stack0 to indicate a stack location (vs.a register.) +// +// framesize + +// stack0 stack0 0 <- VMReg +// | | | +// ...........|..............|.............| +// 0 1 2 3 x x 4 5 6 ... | <- local indices +// ^ ^ sp() ( x x indicate link +// | | and return addr) +// arguments non-argument locals + + +VMReg FrameMap::fpu_regname (int n) { + // Return the OptoReg name for the fpu stack slot "n" + // A spilled fpu stack slot comprises to two single-word OptoReg's. + return as_FloatRegister(n)->as_VMReg(); +} + +LIR_Opr FrameMap::stack_pointer() { + return FrameMap::sp_opr; +} + + +// JSR 292 +LIR_Opr FrameMap::method_handle_invoke_SP_save_opr() { + // assert(rfp == rbp_mh_SP_save, "must be same register"); + return rfp_opr; +} + + +bool FrameMap::validate_frame() { + return true; +}