1 /* 2 * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #ifndef CPU_X86_C2_MACROASSEMBLER_X86_HPP 26 #define CPU_X86_C2_MACROASSEMBLER_X86_HPP 27 28 // C2_MacroAssembler contains high-level macros for C2 29 30 public: 31 // special instructions for EVEX 32 void setvectmask(Register dst, Register src); 33 void restorevectmask(); 34 35 // Code used by cmpFastLock and cmpFastUnlock mach instructions in .ad file. 36 // See full desription in macroAssembler_x86.cpp. 37 void fast_lock(Register obj, Register box, Register tmp, 38 Register scr, Register cx1, Register cx2, 39 BiasedLockingCounters* counters, 40 RTMLockingCounters* rtm_counters, 41 RTMLockingCounters* stack_rtm_counters, 42 Metadata* method_data, 43 bool use_rtm, bool profile_rtm); 44 void fast_unlock(Register obj, Register box, Register tmp, bool use_rtm); 45 46 #if INCLUDE_RTM_OPT 47 void rtm_counters_update(Register abort_status, Register rtm_counters); 48 void branch_on_random_using_rdtsc(Register tmp, Register scr, int count, Label& brLabel); 49 void rtm_abort_ratio_calculation(Register tmp, Register rtm_counters_reg, 50 RTMLockingCounters* rtm_counters, 51 Metadata* method_data); 52 void rtm_profiling(Register abort_status_Reg, Register rtm_counters_Reg, 53 RTMLockingCounters* rtm_counters, Metadata* method_data, bool profile_rtm); 54 void rtm_retry_lock_on_abort(Register retry_count, Register abort_status, Label& retryLabel); 55 void rtm_retry_lock_on_busy(Register retry_count, Register box, Register tmp, Register scr, Label& retryLabel); 56 void rtm_stack_locking(Register obj, Register tmp, Register scr, 57 Register retry_on_abort_count, 58 RTMLockingCounters* stack_rtm_counters, 59 Metadata* method_data, bool profile_rtm, 60 Label& DONE_LABEL, Label& IsInflated); 61 void rtm_inflated_locking(Register obj, Register box, Register tmp, 62 Register scr, Register retry_on_busy_count, 63 Register retry_on_abort_count, 64 RTMLockingCounters* rtm_counters, 65 Metadata* method_data, bool profile_rtm, 66 Label& DONE_LABEL); 67 #endif 68 69 // Generic instructions support for use in .ad files C2 code generation 70 void vabsnegd(int opcode, XMMRegister dst, XMMRegister src, Register scr); 71 void vabsnegd(int opcode, XMMRegister dst, XMMRegister src, int vector_len, Register scr); 72 void vabsnegf(int opcode, XMMRegister dst, XMMRegister src, Register scr); 73 void vabsnegf(int opcode, XMMRegister dst, XMMRegister src, int vector_len, Register scr); 74 void vextendbw(bool sign, XMMRegister dst, XMMRegister src, int vector_len); 75 void vextendbw(bool sign, XMMRegister dst, XMMRegister src); 76 void vshiftd(int opcode, XMMRegister dst, XMMRegister src); 77 void vshiftd(int opcode, XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len); 78 void vshiftw(int opcode, XMMRegister dst, XMMRegister src); 79 void vshiftw(int opcode, XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len); 80 void vshiftq(int opcode, XMMRegister dst, XMMRegister src); 81 void vshiftq(int opcode, XMMRegister dst, XMMRegister nds, XMMRegister src, int vector_len); 82 83 // Reductions for vectors of ints, longs, floats, and doubles. 84 85 // dst = src1 + reduce(op, src2) using vtmp as temps 86 void reduceI(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 87 #ifdef _LP64 88 void reduceL(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 89 #endif // _LP64 90 91 // dst = reduce(op, src2) using vtmp as temps 92 void reduce_fp(int opcode, int vlen, 93 XMMRegister dst, XMMRegister src, 94 XMMRegister vtmp1, XMMRegister vtmp2 = xnoreg); 95 private: 96 void reduceF(int opcode, int vlen, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2); 97 void reduceD(int opcode, int vlen, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2); 98 99 void reduce2I (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 100 void reduce4I (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 101 void reduce8I (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 102 void reduce16I(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 103 104 #ifdef _LP64 105 void reduce2L(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 106 void reduce4L(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 107 void reduce8L(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2); 108 #endif // _LP64 109 110 void reduce2F (int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp); 111 void reduce4F (int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp); 112 void reduce8F (int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2); 113 void reduce16F(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2); 114 115 void reduce2D(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp); 116 void reduce4D(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2); 117 void reduce8D(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2); 118 119 void reduce_operation_128(int opcode, XMMRegister dst, XMMRegister src); 120 void reduce_operation_256(int opcode, XMMRegister dst, XMMRegister src1, XMMRegister src2); 121 122 public: 123 124 void string_indexof_char(Register str1, Register cnt1, Register ch, Register result, 125 XMMRegister vec1, XMMRegister vec2, XMMRegister vec3, Register tmp); 126 127 // IndexOf strings. 128 // Small strings are loaded through stack if they cross page boundary. 129 void string_indexof(Register str1, Register str2, 130 Register cnt1, Register cnt2, 131 int int_cnt2, Register result, 132 XMMRegister vec, Register tmp, 133 int ae); 134 135 // IndexOf for constant substrings with size >= 8 elements 136 // which don't need to be loaded through stack. 137 void string_indexofC8(Register str1, Register str2, 138 Register cnt1, Register cnt2, 139 int int_cnt2, Register result, 140 XMMRegister vec, Register tmp, 141 int ae); 142 143 // Smallest code: we don't need to load through stack, 144 // check string tail. 145 146 // helper function for string_compare 147 void load_next_elements(Register elem1, Register elem2, Register str1, Register str2, 148 Address::ScaleFactor scale, Address::ScaleFactor scale1, 149 Address::ScaleFactor scale2, Register index, int ae); 150 // Compare strings. 151 void string_compare(Register str1, Register str2, 152 Register cnt1, Register cnt2, Register result, 153 XMMRegister vec1, int ae); 154 155 // Search for Non-ASCII character (Negative byte value) in a byte array, 156 // return true if it has any and false otherwise. 157 void has_negatives(Register ary1, Register len, 158 Register result, Register tmp1, 159 XMMRegister vec1, XMMRegister vec2); 160 161 // Compare char[] or byte[] arrays. 162 void arrays_equals(bool is_array_equ, Register ary1, Register ary2, 163 Register limit, Register result, Register chr, 164 XMMRegister vec1, XMMRegister vec2, bool is_char); 165 166 #endif // CPU_X86_C2_MACROASSEMBLER_X86_HPP