Mercurial > hg > graal-compiler
annotate src/share/vm/opto/vectornode.cpp @ 6636:0acd345fd810
7160161: Missed safepoint in non-Counted loop
Summary: Do not remove safepoints during peeling optimization.
Reviewed-by: twisti
author | kvn |
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date | Wed, 29 Aug 2012 13:02:40 -0700 |
parents | 5af51c882207 |
children | e626685e9f6c |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2007, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 */ |
23 | |
1972 | 24 #include "precompiled.hpp" |
25 #include "memory/allocation.inline.hpp" | |
26 #include "opto/connode.hpp" | |
27 #include "opto/vectornode.hpp" | |
0 | 28 |
29 //------------------------------VectorNode-------------------------------------- | |
30 | |
31 // Return the vector operator for the specified scalar operation | |
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32 // and vector length. Also used to check if the code generator |
0 | 33 // supports the vector operation. |
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34 int VectorNode::opcode(int sopc, BasicType bt) { |
0 | 35 switch (sopc) { |
36 case Op_AddI: | |
37 switch (bt) { | |
38 case T_BOOLEAN: | |
39 case T_BYTE: return Op_AddVB; | |
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40 case T_CHAR: |
0 | 41 case T_SHORT: return Op_AddVS; |
42 case T_INT: return Op_AddVI; | |
43 } | |
44 ShouldNotReachHere(); | |
45 case Op_AddL: | |
46 assert(bt == T_LONG, "must be"); | |
47 return Op_AddVL; | |
48 case Op_AddF: | |
49 assert(bt == T_FLOAT, "must be"); | |
50 return Op_AddVF; | |
51 case Op_AddD: | |
52 assert(bt == T_DOUBLE, "must be"); | |
53 return Op_AddVD; | |
54 case Op_SubI: | |
55 switch (bt) { | |
56 case T_BOOLEAN: | |
57 case T_BYTE: return Op_SubVB; | |
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58 case T_CHAR: |
0 | 59 case T_SHORT: return Op_SubVS; |
60 case T_INT: return Op_SubVI; | |
61 } | |
62 ShouldNotReachHere(); | |
63 case Op_SubL: | |
64 assert(bt == T_LONG, "must be"); | |
65 return Op_SubVL; | |
66 case Op_SubF: | |
67 assert(bt == T_FLOAT, "must be"); | |
68 return Op_SubVF; | |
69 case Op_SubD: | |
70 assert(bt == T_DOUBLE, "must be"); | |
71 return Op_SubVD; | |
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72 case Op_MulI: |
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73 switch (bt) { |
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74 case T_BOOLEAN: |
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75 case T_BYTE: return 0; // Unimplemented |
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76 case T_CHAR: |
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77 case T_SHORT: return Op_MulVS; |
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78 case T_INT: return Matcher::match_rule_supported(Op_MulVI) ? Op_MulVI : 0; // SSE4_1 |
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79 } |
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80 ShouldNotReachHere(); |
0 | 81 case Op_MulF: |
82 assert(bt == T_FLOAT, "must be"); | |
83 return Op_MulVF; | |
84 case Op_MulD: | |
85 assert(bt == T_DOUBLE, "must be"); | |
86 return Op_MulVD; | |
87 case Op_DivF: | |
88 assert(bt == T_FLOAT, "must be"); | |
89 return Op_DivVF; | |
90 case Op_DivD: | |
91 assert(bt == T_DOUBLE, "must be"); | |
92 return Op_DivVD; | |
93 case Op_LShiftI: | |
94 switch (bt) { | |
95 case T_BOOLEAN: | |
96 case T_BYTE: return Op_LShiftVB; | |
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97 case T_CHAR: |
0 | 98 case T_SHORT: return Op_LShiftVS; |
99 case T_INT: return Op_LShiftVI; | |
100 } | |
101 ShouldNotReachHere(); | |
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102 case Op_LShiftL: |
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103 assert(bt == T_LONG, "must be"); |
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104 return Op_LShiftVL; |
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105 case Op_RShiftI: |
0 | 106 switch (bt) { |
107 case T_BOOLEAN: | |
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108 case T_BYTE: return Op_RShiftVB; |
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109 case T_CHAR: |
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110 case T_SHORT: return Op_RShiftVS; |
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111 case T_INT: return Op_RShiftVI; |
0 | 112 } |
113 ShouldNotReachHere(); | |
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114 case Op_RShiftL: |
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115 assert(bt == T_LONG, "must be"); |
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116 return Op_RShiftVL; |
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117 case Op_URShiftI: |
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118 switch (bt) { |
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119 case T_BOOLEAN: |
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120 case T_BYTE: return Op_URShiftVB; |
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121 case T_CHAR: |
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122 case T_SHORT: return Op_URShiftVS; |
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123 case T_INT: return Op_URShiftVI; |
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124 } |
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125 ShouldNotReachHere(); |
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126 case Op_URShiftL: |
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127 assert(bt == T_LONG, "must be"); |
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128 return Op_URShiftVL; |
0 | 129 case Op_AndI: |
130 case Op_AndL: | |
131 return Op_AndV; | |
132 case Op_OrI: | |
133 case Op_OrL: | |
134 return Op_OrV; | |
135 case Op_XorI: | |
136 case Op_XorL: | |
137 return Op_XorV; | |
138 | |
139 case Op_LoadB: | |
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140 case Op_LoadUB: |
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141 case Op_LoadUS: |
0 | 142 case Op_LoadS: |
143 case Op_LoadI: | |
144 case Op_LoadL: | |
145 case Op_LoadF: | |
146 case Op_LoadD: | |
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147 return Op_LoadVector; |
0 | 148 |
149 case Op_StoreB: | |
150 case Op_StoreC: | |
151 case Op_StoreI: | |
152 case Op_StoreL: | |
153 case Op_StoreF: | |
154 case Op_StoreD: | |
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155 return Op_StoreVector; |
0 | 156 } |
157 return 0; // Unimplemented | |
158 } | |
159 | |
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160 bool VectorNode::implemented(int opc, uint vlen, BasicType bt) { |
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161 if (is_java_primitive(bt) && |
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162 (vlen > 1) && is_power_of_2(vlen) && |
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163 Matcher::vector_size_supported(bt, vlen)) { |
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164 int vopc = VectorNode::opcode(opc, bt); |
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165 return vopc > 0 && Matcher::has_match_rule(vopc); |
0 | 166 } |
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167 return false; |
0 | 168 } |
169 | |
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170 bool VectorNode::is_shift(Node* n) { |
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171 switch (n->Opcode()) { |
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172 case Op_LShiftI: |
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173 case Op_LShiftL: |
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174 case Op_RShiftI: |
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175 case Op_RShiftL: |
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176 case Op_URShiftI: |
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177 case Op_URShiftL: |
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178 return true; |
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179 } |
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180 return false; |
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181 } |
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182 |
6617 | 183 // Check if input is loop invariant vector. |
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184 bool VectorNode::is_invariant_vector(Node* n) { |
6617 | 185 // Only Replicate vector nodes are loop invariant for now. |
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186 switch (n->Opcode()) { |
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187 case Op_ReplicateB: |
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188 case Op_ReplicateS: |
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189 case Op_ReplicateI: |
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190 case Op_ReplicateL: |
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191 case Op_ReplicateF: |
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192 case Op_ReplicateD: |
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193 return true; |
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194 } |
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195 return false; |
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196 } |
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197 |
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198 // [Start, end) half-open range defining which operands are vectors |
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199 void VectorNode::vector_operands(Node* n, uint* start, uint* end) { |
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200 switch (n->Opcode()) { |
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201 case Op_LoadB: case Op_LoadUB: |
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202 case Op_LoadS: case Op_LoadUS: |
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203 case Op_LoadI: case Op_LoadL: |
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204 case Op_LoadF: case Op_LoadD: |
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205 case Op_LoadP: case Op_LoadN: |
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206 *start = 0; |
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207 *end = 0; // no vector operands |
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208 break; |
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209 case Op_StoreB: case Op_StoreC: |
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210 case Op_StoreI: case Op_StoreL: |
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211 case Op_StoreF: case Op_StoreD: |
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212 case Op_StoreP: case Op_StoreN: |
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213 *start = MemNode::ValueIn; |
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214 *end = MemNode::ValueIn + 1; // 1 vector operand |
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215 break; |
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216 case Op_LShiftI: case Op_LShiftL: |
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217 case Op_RShiftI: case Op_RShiftL: |
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218 case Op_URShiftI: case Op_URShiftL: |
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219 *start = 1; |
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220 *end = 2; // 1 vector operand |
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221 break; |
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222 case Op_AddI: case Op_AddL: case Op_AddF: case Op_AddD: |
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223 case Op_SubI: case Op_SubL: case Op_SubF: case Op_SubD: |
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224 case Op_MulI: case Op_MulL: case Op_MulF: case Op_MulD: |
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225 case Op_DivF: case Op_DivD: |
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226 case Op_AndI: case Op_AndL: |
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227 case Op_OrI: case Op_OrL: |
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228 case Op_XorI: case Op_XorL: |
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229 *start = 1; |
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230 *end = 3; // 2 vector operands |
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231 break; |
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232 case Op_CMoveI: case Op_CMoveL: case Op_CMoveF: case Op_CMoveD: |
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233 *start = 2; |
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234 *end = n->req(); |
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235 break; |
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236 default: |
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237 *start = 1; |
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238 *end = n->req(); // default is all operands |
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239 } |
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240 } |
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241 |
0 | 242 // Return the vector version of a scalar operation node. |
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243 VectorNode* VectorNode::make(Compile* C, int opc, Node* n1, Node* n2, uint vlen, BasicType bt) { |
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244 const TypeVect* vt = TypeVect::make(bt, vlen); |
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245 int vopc = VectorNode::opcode(opc, bt); |
0 | 246 |
247 switch (vopc) { | |
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248 case Op_AddVB: return new (C, 3) AddVBNode(n1, n2, vt); |
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249 case Op_AddVS: return new (C, 3) AddVSNode(n1, n2, vt); |
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250 case Op_AddVI: return new (C, 3) AddVINode(n1, n2, vt); |
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251 case Op_AddVL: return new (C, 3) AddVLNode(n1, n2, vt); |
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252 case Op_AddVF: return new (C, 3) AddVFNode(n1, n2, vt); |
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253 case Op_AddVD: return new (C, 3) AddVDNode(n1, n2, vt); |
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254 |
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255 case Op_SubVB: return new (C, 3) SubVBNode(n1, n2, vt); |
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256 case Op_SubVS: return new (C, 3) SubVSNode(n1, n2, vt); |
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257 case Op_SubVI: return new (C, 3) SubVINode(n1, n2, vt); |
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258 case Op_SubVL: return new (C, 3) SubVLNode(n1, n2, vt); |
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259 case Op_SubVF: return new (C, 3) SubVFNode(n1, n2, vt); |
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260 case Op_SubVD: return new (C, 3) SubVDNode(n1, n2, vt); |
0 | 261 |
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262 case Op_MulVS: return new (C, 3) MulVSNode(n1, n2, vt); |
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263 case Op_MulVI: return new (C, 3) MulVINode(n1, n2, vt); |
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264 case Op_MulVF: return new (C, 3) MulVFNode(n1, n2, vt); |
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265 case Op_MulVD: return new (C, 3) MulVDNode(n1, n2, vt); |
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266 |
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267 case Op_DivVF: return new (C, 3) DivVFNode(n1, n2, vt); |
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268 case Op_DivVD: return new (C, 3) DivVDNode(n1, n2, vt); |
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269 |
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270 case Op_LShiftVB: return new (C, 3) LShiftVBNode(n1, n2, vt); |
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271 case Op_LShiftVS: return new (C, 3) LShiftVSNode(n1, n2, vt); |
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272 case Op_LShiftVI: return new (C, 3) LShiftVINode(n1, n2, vt); |
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273 case Op_LShiftVL: return new (C, 3) LShiftVLNode(n1, n2, vt); |
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274 |
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275 case Op_RShiftVB: return new (C, 3) RShiftVBNode(n1, n2, vt); |
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276 case Op_RShiftVS: return new (C, 3) RShiftVSNode(n1, n2, vt); |
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277 case Op_RShiftVI: return new (C, 3) RShiftVINode(n1, n2, vt); |
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278 case Op_RShiftVL: return new (C, 3) RShiftVLNode(n1, n2, vt); |
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279 |
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280 case Op_URShiftVB: return new (C, 3) URShiftVBNode(n1, n2, vt); |
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281 case Op_URShiftVS: return new (C, 3) URShiftVSNode(n1, n2, vt); |
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282 case Op_URShiftVI: return new (C, 3) URShiftVINode(n1, n2, vt); |
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283 case Op_URShiftVL: return new (C, 3) URShiftVLNode(n1, n2, vt); |
0 | 284 |
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285 case Op_AndV: return new (C, 3) AndVNode(n1, n2, vt); |
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286 case Op_OrV: return new (C, 3) OrVNode (n1, n2, vt); |
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287 case Op_XorV: return new (C, 3) XorVNode(n1, n2, vt); |
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288 } |
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289 ShouldNotReachHere(); |
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290 return NULL; |
0 | 291 |
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292 } |
0 | 293 |
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294 // Scalar promotion |
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295 VectorNode* VectorNode::scalar2vector(Compile* C, Node* s, uint vlen, const Type* opd_t) { |
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296 BasicType bt = opd_t->array_element_basic_type(); |
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297 const TypeVect* vt = opd_t->singleton() ? TypeVect::make(opd_t, vlen) |
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298 : TypeVect::make(bt, vlen); |
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299 switch (bt) { |
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300 case T_BOOLEAN: |
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301 case T_BYTE: |
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302 return new (C, 2) ReplicateBNode(s, vt); |
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303 case T_CHAR: |
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304 case T_SHORT: |
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305 return new (C, 2) ReplicateSNode(s, vt); |
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306 case T_INT: |
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307 return new (C, 2) ReplicateINode(s, vt); |
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308 case T_LONG: |
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309 return new (C, 2) ReplicateLNode(s, vt); |
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310 case T_FLOAT: |
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311 return new (C, 2) ReplicateFNode(s, vt); |
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312 case T_DOUBLE: |
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313 return new (C, 2) ReplicateDNode(s, vt); |
0 | 314 } |
315 ShouldNotReachHere(); | |
316 return NULL; | |
317 } | |
318 | |
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319 // Return initial Pack node. Additional operands added with add_opd() calls. |
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320 PackNode* PackNode::make(Compile* C, Node* s, uint vlen, BasicType bt) { |
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321 const TypeVect* vt = TypeVect::make(bt, vlen); |
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322 switch (bt) { |
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323 case T_BOOLEAN: |
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324 case T_BYTE: |
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325 return new (C, 2) PackBNode(s, vt); |
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326 case T_CHAR: |
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327 case T_SHORT: |
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328 return new (C, 2) PackSNode(s, vt); |
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329 case T_INT: |
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330 return new (C, 2) PackINode(s, vt); |
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331 case T_LONG: |
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332 return new (C, 2) PackLNode(s, vt); |
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333 case T_FLOAT: |
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334 return new (C, 2) PackFNode(s, vt); |
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335 case T_DOUBLE: |
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336 return new (C, 2) PackDNode(s, vt); |
0 | 337 } |
338 ShouldNotReachHere(); | |
339 return NULL; | |
340 } | |
341 | |
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342 // Create a binary tree form for Packs. [lo, hi) (half-open) range |
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343 PackNode* PackNode::binary_tree_pack(Compile* C, int lo, int hi) { |
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344 int ct = hi - lo; |
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345 assert(is_power_of_2(ct), "power of 2"); |
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346 if (ct == 2) { |
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347 PackNode* pk = PackNode::make(C, in(lo), 2, vect_type()->element_basic_type()); |
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348 pk->add_opd(in(lo+1)); |
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349 return pk; |
0 | 350 |
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351 } else { |
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352 int mid = lo + ct/2; |
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353 PackNode* n1 = binary_tree_pack(C, lo, mid); |
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354 PackNode* n2 = binary_tree_pack(C, mid, hi ); |
0 | 355 |
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356 BasicType bt = n1->vect_type()->element_basic_type(); |
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357 assert(bt == n2->vect_type()->element_basic_type(), "should be the same"); |
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358 switch (bt) { |
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359 case T_BOOLEAN: |
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360 case T_BYTE: |
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361 return new (C, 3) PackSNode(n1, n2, TypeVect::make(T_SHORT, 2)); |
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362 case T_CHAR: |
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363 case T_SHORT: |
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364 return new (C, 3) PackINode(n1, n2, TypeVect::make(T_INT, 2)); |
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365 case T_INT: |
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366 return new (C, 3) PackLNode(n1, n2, TypeVect::make(T_LONG, 2)); |
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367 case T_LONG: |
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368 return new (C, 3) Pack2LNode(n1, n2, TypeVect::make(T_LONG, 2)); |
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369 case T_FLOAT: |
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370 return new (C, 3) PackDNode(n1, n2, TypeVect::make(T_DOUBLE, 2)); |
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371 case T_DOUBLE: |
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372 return new (C, 3) Pack2DNode(n1, n2, TypeVect::make(T_DOUBLE, 2)); |
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373 } |
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374 ShouldNotReachHere(); |
0 | 375 } |
376 return NULL; | |
377 } | |
378 | |
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379 // Return the vector version of a scalar load node. |
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380 LoadVectorNode* LoadVectorNode::make(Compile* C, int opc, Node* ctl, Node* mem, |
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381 Node* adr, const TypePtr* atyp, uint vlen, BasicType bt) { |
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382 const TypeVect* vt = TypeVect::make(bt, vlen); |
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383 return new (C, 3) LoadVectorNode(ctl, mem, adr, atyp, vt); |
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384 return NULL; |
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385 } |
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386 |
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387 // Return the vector version of a scalar store node. |
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388 StoreVectorNode* StoreVectorNode::make(Compile* C, int opc, Node* ctl, Node* mem, |
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389 Node* adr, const TypePtr* atyp, Node* val, |
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390 uint vlen) { |
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391 return new (C, 4) StoreVectorNode(ctl, mem, adr, atyp, val); |
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392 } |
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393 |
0 | 394 // Extract a scalar element of vector. |
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395 Node* ExtractNode::make(Compile* C, Node* v, uint position, BasicType bt) { |
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396 assert((int)position < Matcher::max_vector_size(bt), "pos in range"); |
0 | 397 ConINode* pos = ConINode::make(C, (int)position); |
398 switch (bt) { | |
399 case T_BOOLEAN: | |
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400 return new (C, 3) ExtractUBNode(v, pos); |
0 | 401 case T_BYTE: |
402 return new (C, 3) ExtractBNode(v, pos); | |
403 case T_CHAR: | |
404 return new (C, 3) ExtractCNode(v, pos); | |
405 case T_SHORT: | |
406 return new (C, 3) ExtractSNode(v, pos); | |
407 case T_INT: | |
408 return new (C, 3) ExtractINode(v, pos); | |
409 case T_LONG: | |
410 return new (C, 3) ExtractLNode(v, pos); | |
411 case T_FLOAT: | |
412 return new (C, 3) ExtractFNode(v, pos); | |
413 case T_DOUBLE: | |
414 return new (C, 3) ExtractDNode(v, pos); | |
415 } | |
416 ShouldNotReachHere(); | |
417 return NULL; | |
418 } | |
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419 |