1 /*
2 * Copyright (c) 2020, 2021, 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 Assembler::AvxVectorLen vector_length_encoding(int vlen_in_bytes);
32
33 // special instructions for EVEX
34 void setvectmask(Register dst, Register src, KRegister mask);
35 void restorevectmask(KRegister mask);
36
37 // Code used by cmpFastLock and cmpFastUnlock mach instructions in .ad file.
38 // See full desription in macroAssembler_x86.cpp.
39 void fast_lock(Register obj, Register box, Register tmp,
40 Register scr, Register cx1, Register cx2,
41 RTMLockingCounters* rtm_counters,
42 RTMLockingCounters* stack_rtm_counters,
43 Metadata* method_data,
44 bool use_rtm, bool profile_rtm);
45 void fast_unlock(Register obj, Register box, Register tmp, bool use_rtm);
46
47 #if INCLUDE_RTM_OPT
48 void rtm_counters_update(Register abort_status, Register rtm_counters);
49 void branch_on_random_using_rdtsc(Register tmp, Register scr, int count, Label& brLabel);
50 void rtm_abort_ratio_calculation(Register tmp, Register rtm_counters_reg,
51 RTMLockingCounters* rtm_counters,
52 Metadata* method_data);
53 void rtm_profiling(Register abort_status_Reg, Register rtm_counters_Reg,
54 RTMLockingCounters* rtm_counters, Metadata* method_data, bool profile_rtm);
55 void rtm_retry_lock_on_abort(Register retry_count, Register abort_status, Label& retryLabel);
56 void rtm_retry_lock_on_busy(Register retry_count, Register box, Register tmp, Register scr, Label& retryLabel);
57 void rtm_stack_locking(Register obj, Register tmp, Register scr,
58 Register retry_on_abort_count,
59 RTMLockingCounters* stack_rtm_counters,
60 Metadata* method_data, bool profile_rtm,
61 Label& DONE_LABEL, Label& IsInflated);
62 void rtm_inflated_locking(Register obj, Register box, Register tmp,
63 Register scr, Register retry_on_busy_count,
64 Register retry_on_abort_count,
65 RTMLockingCounters* rtm_counters,
66 Metadata* method_data, bool profile_rtm,
67 Label& DONE_LABEL);
68 #endif
69
70 // Generic instructions support for use in .ad files C2 code generation
71 void vabsnegd(int opcode, XMMRegister dst, XMMRegister src, Register scr);
72 void vabsnegd(int opcode, XMMRegister dst, XMMRegister src, int vector_len, Register scr);
73 void vabsnegf(int opcode, XMMRegister dst, XMMRegister src, Register scr);
74 void vabsnegf(int opcode, XMMRegister dst, XMMRegister src, int vector_len, Register scr);
75
76 void pminmax(int opcode, BasicType elem_bt, XMMRegister dst, XMMRegister src,
77 XMMRegister tmp = xnoreg);
78 void vpminmax(int opcode, BasicType elem_bt,
79 XMMRegister dst, XMMRegister src1, XMMRegister src2,
80 int vlen_enc);
81
82 void vminmax_fp(int opcode, BasicType elem_bt,
83 XMMRegister dst, XMMRegister a, XMMRegister b,
84 XMMRegister tmp, XMMRegister atmp, XMMRegister btmp,
85 int vlen_enc);
86 void evminmax_fp(int opcode, BasicType elem_bt,
87 XMMRegister dst, XMMRegister a, XMMRegister b,
88 KRegister ktmp, XMMRegister atmp, XMMRegister btmp,
89 int vlen_enc);
90
91 void signum_fp(int opcode, XMMRegister dst,
92 XMMRegister zero, XMMRegister one,
93 Register scratch);
94
95 void vector_compress_expand(int opcode, XMMRegister dst, XMMRegister src, KRegister mask,
96 bool merge, BasicType bt, int vec_enc);
97
98 void vector_mask_compress(KRegister dst, KRegister src, Register rtmp1, Register rtmp2, int mask_len);
99
100 void vextendbw(bool sign, XMMRegister dst, XMMRegister src, int vector_len);
101 void vextendbw(bool sign, XMMRegister dst, XMMRegister src);
102 void vextendbd(bool sign, XMMRegister dst, XMMRegister src, int vector_len);
103 void vextendwd(bool sign, XMMRegister dst, XMMRegister src, int vector_len);
104
105 void vshiftd(int opcode, XMMRegister dst, XMMRegister shift);
106 void vshiftd_imm(int opcode, XMMRegister dst, int shift);
107 void vshiftd(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vlen_enc);
108 void vshiftd_imm(int opcode, XMMRegister dst, XMMRegister nds, int shift, int vector_len);
109 void vshiftw(int opcode, XMMRegister dst, XMMRegister shift);
110 void vshiftw(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vlen_enc);
111 void vshiftq(int opcode, XMMRegister dst, XMMRegister shift);
112 void vshiftq_imm(int opcode, XMMRegister dst, int shift);
113 void vshiftq(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vlen_enc);
114 void vshiftq_imm(int opcode, XMMRegister dst, XMMRegister nds, int shift, int vector_len);
115
116 void vprotate_imm(int opcode, BasicType etype, XMMRegister dst, XMMRegister src, int shift, int vector_len);
117 void vprotate_var(int opcode, BasicType etype, XMMRegister dst, XMMRegister src, XMMRegister shift, int vector_len);
118
119 void varshiftd(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vlen_enc);
120 void varshiftw(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vlen_enc);
121 void varshiftq(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vlen_enc, XMMRegister vtmp = xnoreg);
122 void varshiftbw(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vector_len, XMMRegister vtmp, Register scratch);
123 void evarshiftb(int opcode, XMMRegister dst, XMMRegister src, XMMRegister shift, int vector_len, XMMRegister vtmp, Register scratch);
124
125 void insert(BasicType typ, XMMRegister dst, Register val, int idx);
126 void vinsert(BasicType typ, XMMRegister dst, XMMRegister src, Register val, int idx);
127 void vgather(BasicType typ, XMMRegister dst, Register base, XMMRegister idx, XMMRegister mask, int vector_len);
128 void evgather(BasicType typ, XMMRegister dst, KRegister mask, Register base, XMMRegister idx, int vector_len);
129 void evscatter(BasicType typ, Register base, XMMRegister idx, KRegister mask, XMMRegister src, int vector_len);
130
131 void evmovdqu(BasicType type, KRegister kmask, XMMRegister dst, Address src, int vector_len);
132 void evmovdqu(BasicType type, KRegister kmask, Address dst, XMMRegister src, int vector_len);
133
134 // extract
135 void extract(BasicType typ, Register dst, XMMRegister src, int idx);
136 XMMRegister get_lane(BasicType typ, XMMRegister dst, XMMRegister src, int elemindex);
137 void get_elem(BasicType typ, Register dst, XMMRegister src, int elemindex);
138 void get_elem(BasicType typ, XMMRegister dst, XMMRegister src, int elemindex, Register tmp = noreg, XMMRegister vtmp = xnoreg);
139
140 // vector test
141 void vectortest(int bt, int vlen, XMMRegister src1, XMMRegister src2,
142 XMMRegister vtmp1 = xnoreg, XMMRegister vtmp2 = xnoreg, KRegister mask = knoreg);
143
144 // blend
145 void evpcmp(BasicType typ, KRegister kdmask, KRegister ksmask, XMMRegister src1, AddressLiteral adr, int comparison, int vector_len, Register scratch = rscratch1);
146 void evpcmp(BasicType typ, KRegister kdmask, KRegister ksmask, XMMRegister src1, XMMRegister src2, int comparison, int vector_len);
147 void evpblend(BasicType typ, XMMRegister dst, KRegister kmask, XMMRegister src1, XMMRegister src2, bool merge, int vector_len);
148
149 void load_vector_mask(XMMRegister dst, XMMRegister src, int vlen_in_bytes, BasicType elem_bt, bool is_legacy);
150 void load_vector_mask(KRegister dst, XMMRegister src, XMMRegister xtmp, Register tmp, bool novlbwdq, int vlen_enc);
151
152 void load_iota_indices(XMMRegister dst, Register scratch, int vlen_in_bytes);
153
154 // vector compare
155 void vpcmpu(BasicType typ, XMMRegister dst, XMMRegister src1, XMMRegister src2, ComparisonPredicate comparison, int vlen_in_bytes,
156 XMMRegister vtmp1, XMMRegister vtmp2, Register scratch);
157 void vpcmpu32(BasicType typ, XMMRegister dst, XMMRegister src1, XMMRegister src2, ComparisonPredicate comparison, int vlen_in_bytes,
158 XMMRegister vtmp1, XMMRegister vtmp2, XMMRegister vtmp3, Register scratch);
159
160 // Reductions for vectors of bytes, shorts, ints, longs, floats, and doubles.
161
162 // dst = src1 reduce(op, src2) using vtmp as temps
163 void reduceI(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
164 #ifdef _LP64
165 void reduceL(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
166 void genmask(KRegister dst, Register len, Register temp);
167 #endif // _LP64
168
169 // dst = reduce(op, src2) using vtmp as temps
170 void reduce_fp(int opcode, int vlen,
171 XMMRegister dst, XMMRegister src,
172 XMMRegister vtmp1, XMMRegister vtmp2 = xnoreg);
173 void reduceB(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
174 void mulreduceB(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
175 void reduceS(int opcode, int vlen, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
176 void reduceFloatMinMax(int opcode, int vlen, bool is_dst_valid,
177 XMMRegister dst, XMMRegister src,
178 XMMRegister tmp, XMMRegister atmp, XMMRegister btmp, XMMRegister xmm_0, XMMRegister xmm_1 = xnoreg);
179 void reduceDoubleMinMax(int opcode, int vlen, bool is_dst_valid,
180 XMMRegister dst, XMMRegister src,
181 XMMRegister tmp, XMMRegister atmp, XMMRegister btmp, XMMRegister xmm_0, XMMRegister xmm_1 = xnoreg);
182 private:
183 void reduceF(int opcode, int vlen, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2);
184 void reduceD(int opcode, int vlen, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2);
185
186 // Int Reduction
187 void reduce2I (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
188 void reduce4I (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
189 void reduce8I (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
190 void reduce16I(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
191
192 // Byte Reduction
193 void reduce8B (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
194 void reduce16B(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
195 void reduce32B(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
196 void reduce64B(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
197 void mulreduce8B (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
198 void mulreduce16B(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
199 void mulreduce32B(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
200 void mulreduce64B(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
201
202 // Short Reduction
203 void reduce4S (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
204 void reduce8S (int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
205 void reduce16S(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
206 void reduce32S(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
207
208 // Long Reduction
209 #ifdef _LP64
210 void reduce2L(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
211 void reduce4L(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
212 void reduce8L(int opcode, Register dst, Register src1, XMMRegister src2, XMMRegister vtmp1, XMMRegister vtmp2);
213 #endif // _LP64
214
215 // Float Reduction
216 void reduce2F (int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp);
217 void reduce4F (int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp);
218 void reduce8F (int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2);
219 void reduce16F(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2);
220
221 // Double Reduction
222 void reduce2D(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp);
223 void reduce4D(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2);
224 void reduce8D(int opcode, XMMRegister dst, XMMRegister src, XMMRegister vtmp1, XMMRegister vtmp2);
225
226 // Base reduction instruction
227 void reduce_operation_128(BasicType typ, int opcode, XMMRegister dst, XMMRegister src);
228 void reduce_operation_256(BasicType typ, int opcode, XMMRegister dst, XMMRegister src1, XMMRegister src2);
229
230 public:
231 #ifdef _LP64
232 void vector_mask_operation_helper(int opc, Register dst, Register tmp, int masklen);
233
234 void vector_mask_operation(int opc, Register dst, KRegister mask, Register tmp, int masklen, int masksize, int vec_enc);
235
236 void vector_mask_operation(int opc, Register dst, XMMRegister mask, XMMRegister xtmp,
237 Register tmp, int masklen, BasicType bt, int vec_enc);
238 void vector_long_to_maskvec(XMMRegister dst, Register src, Register rtmp1,
239 Register rtmp2, XMMRegister xtmp, int mask_len, int vec_enc);
240 #endif
241
242 void vector_maskall_operation(KRegister dst, Register src, int mask_len);
243
244 #ifndef _LP64
245 void vector_maskall_operation32(KRegister dst, Register src, KRegister ktmp, int mask_len);
246 #endif
247
248 void string_indexof_char(Register str1, Register cnt1, Register ch, Register result,
249 XMMRegister vec1, XMMRegister vec2, XMMRegister vec3, Register tmp);
250
251 void stringL_indexof_char(Register str1, Register cnt1, Register ch, Register result,
252 XMMRegister vec1, XMMRegister vec2, XMMRegister vec3, Register tmp);
253
254 // IndexOf strings.
255 // Small strings are loaded through stack if they cross page boundary.
256 void string_indexof(Register str1, Register str2,
257 Register cnt1, Register cnt2,
258 int int_cnt2, Register result,
259 XMMRegister vec, Register tmp,
260 int ae);
261
262 // IndexOf for constant substrings with size >= 8 elements
263 // which don't need to be loaded through stack.
264 void string_indexofC8(Register str1, Register str2,
265 Register cnt1, Register cnt2,
266 int int_cnt2, Register result,
267 XMMRegister vec, Register tmp,
268 int ae);
269
270 // Smallest code: we don't need to load through stack,
271 // check string tail.
272
273 // helper function for string_compare
274 void load_next_elements(Register elem1, Register elem2, Register str1, Register str2,
275 Address::ScaleFactor scale, Address::ScaleFactor scale1,
276 Address::ScaleFactor scale2, Register index, int ae);
277 // Compare strings.
278 void string_compare(Register str1, Register str2,
279 Register cnt1, Register cnt2, Register result,
280 XMMRegister vec1, int ae, KRegister mask = knoreg);
281
282 // Search for Non-ASCII character (Negative byte value) in a byte array,
283 // return true if it has any and false otherwise.
284 void has_negatives(Register ary1, Register len,
285 Register result, Register tmp1,
286 XMMRegister vec1, XMMRegister vec2, KRegister mask1 = knoreg, KRegister mask2 = knoreg);
287
288 // Compare char[] or byte[] arrays.
289 void arrays_equals(bool is_array_equ, Register ary1, Register ary2,
290 Register limit, Register result, Register chr,
291 XMMRegister vec1, XMMRegister vec2, bool is_char, KRegister mask = knoreg);
292
293
294 void evmasked_op(int ideal_opc, BasicType eType, KRegister mask,
295 XMMRegister dst, XMMRegister src1, XMMRegister src2,
296 bool merge, int vlen_enc, bool is_varshift = false);
297
298 void evmasked_op(int ideal_opc, BasicType eType, KRegister mask,
299 XMMRegister dst, XMMRegister src1, Address src2,
300 bool merge, int vlen_enc);
301
302 void evmasked_op(int ideal_opc, BasicType eType, KRegister mask, XMMRegister dst,
303 XMMRegister src1, int imm8, bool merge, int vlen_enc);
304
305 void masked_op(int ideal_opc, int mask_len, KRegister dst,
306 KRegister src1, KRegister src2);
307
308 void vector_castF2I_avx(XMMRegister dst, XMMRegister src, XMMRegister xtmp1,
309 XMMRegister xtmp2, XMMRegister xtmp3, XMMRegister xtmp4,
310 AddressLiteral float_sign_flip, Register scratch, int vec_enc);
311
312 void vector_castF2I_evex(XMMRegister dst, XMMRegister src, XMMRegister xtmp1, XMMRegister xtmp2,
313 KRegister ktmp1, KRegister ktmp2, AddressLiteral float_sign_flip,
314 Register scratch, int vec_enc);
315
316 void vector_castD2L_evex(XMMRegister dst, XMMRegister src, XMMRegister xtmp1, XMMRegister xtmp2,
317 KRegister ktmp1, KRegister ktmp2, AddressLiteral double_sign_flip,
318 Register scratch, int vec_enc);
319 #endif // CPU_X86_C2_MACROASSEMBLER_X86_HPP