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Issue 1074743002: MIPS: [turbofan] Materialize JSFunction from frame if possible. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 8 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/compiler/code-generator.h" 5 #include "src/compiler/code-generator.h"
6 #include "src/compiler/code-generator-impl.h" 6 #include "src/compiler/code-generator-impl.h"
7 #include "src/compiler/gap-resolver.h" 7 #include "src/compiler/gap-resolver.h"
8 #include "src/compiler/node-matchers.h" 8 #include "src/compiler/node-matchers.h"
9 #include "src/mips/macro-assembler-mips.h" 9 #include "src/mips/macro-assembler-mips.h"
10 #include "src/scopes.h" 10 #include "src/scopes.h"
(...skipping 1186 matching lines...) Expand 10 before | Expand all | Expand 10 after
1197 break; 1197 break;
1198 case Constant::kInt64: 1198 case Constant::kInt64:
1199 __ li(dst, Operand(src.ToInt64())); 1199 __ li(dst, Operand(src.ToInt64()));
1200 break; 1200 break;
1201 case Constant::kFloat64: 1201 case Constant::kFloat64:
1202 __ li(dst, isolate()->factory()->NewNumber(src.ToFloat64(), TENURED)); 1202 __ li(dst, isolate()->factory()->NewNumber(src.ToFloat64(), TENURED));
1203 break; 1203 break;
1204 case Constant::kExternalReference: 1204 case Constant::kExternalReference:
1205 __ li(dst, Operand(src.ToExternalReference())); 1205 __ li(dst, Operand(src.ToExternalReference()));
1206 break; 1206 break;
1207 case Constant::kHeapObject: 1207 case Constant::kHeapObject: {
1208 __ li(dst, src.ToHeapObject()); 1208 Handle<HeapObject> src_object = src.ToHeapObject();
1209 if (info()->IsOptimizing() &&
1210 src_object.is_identical_to(info()->context())) {
1211 // Loading the context from the frame is way cheaper than
1212 // materializing the actual context heap object address.
1213 __ ld(dst, MemOperand(fp, StandardFrameConstants::kContextOffset));
1214 } else if (info()->IsOptimizing() &&
1215 src_object.is_identical_to(info()->closure())) {
1216 // Loading the JSFunction from the frame is way cheaper than
1217 // materializing the actual JSFunction heap object address.
1218 __ ld(dst,
1219 MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
1220 } else {
1221 __ li(dst, src_object);
1222 }
1209 break; 1223 break;
1224 }
1210 case Constant::kRpoNumber: 1225 case Constant::kRpoNumber:
1211 UNREACHABLE(); // TODO(titzer): loading RPO numbers on mips64. 1226 UNREACHABLE(); // TODO(titzer): loading RPO numbers on mips64.
1212 break; 1227 break;
1213 } 1228 }
1214 if (destination->IsStackSlot()) __ sd(dst, g.ToMemOperand(destination)); 1229 if (destination->IsStackSlot()) __ sd(dst, g.ToMemOperand(destination));
1215 } else if (src.type() == Constant::kFloat32) { 1230 } else if (src.type() == Constant::kFloat32) {
1216 if (destination->IsDoubleStackSlot()) { 1231 if (destination->IsDoubleStackSlot()) {
1217 MemOperand dst = g.ToMemOperand(destination); 1232 MemOperand dst = g.ToMemOperand(destination);
1218 __ li(at, Operand(bit_cast<int32_t>(src.ToFloat32()))); 1233 __ li(at, Operand(bit_cast<int32_t>(src.ToFloat32())));
1219 __ sw(at, dst); 1234 __ sw(at, dst);
(...skipping 135 matching lines...) Expand 10 before | Expand all | Expand 10 after
1355 } 1370 }
1356 } 1371 }
1357 MarkLazyDeoptSite(); 1372 MarkLazyDeoptSite();
1358 } 1373 }
1359 1374
1360 #undef __ 1375 #undef __
1361 1376
1362 } // namespace compiler 1377 } // namespace compiler
1363 } // namespace internal 1378 } // namespace internal
1364 } // namespace v8 1379 } // namespace v8
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