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Issue 619663002: [turbofan] support all shift operands on ia32 (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 2 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/instruction-selector-impl.h" 5 #include "src/compiler/instruction-selector-impl.h"
6 #include "src/compiler/node-matchers.h" 6 #include "src/compiler/node-matchers.h"
7 #include "src/compiler/node-properties-inl.h" 7 #include "src/compiler/node-properties-inl.h"
8 8
9 namespace v8 { 9 namespace v8 {
10 namespace internal { 10 namespace internal {
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322 } 322 }
323 323
324 324
325 // Shared routine for multiple shift operations. 325 // Shared routine for multiple shift operations.
326 static inline void VisitShift(InstructionSelector* selector, Node* node, 326 static inline void VisitShift(InstructionSelector* selector, Node* node,
327 ArchOpcode opcode) { 327 ArchOpcode opcode) {
328 IA32OperandGenerator g(selector); 328 IA32OperandGenerator g(selector);
329 Node* left = node->InputAt(0); 329 Node* left = node->InputAt(0);
330 Node* right = node->InputAt(1); 330 Node* right = node->InputAt(1);
331 331
332 // TODO(turbofan): assembler only supports some addressing modes for shifts.
333 if (g.CanBeImmediate(right)) { 332 if (g.CanBeImmediate(right)) {
334 selector->Emit(opcode, g.DefineSameAsFirst(node), g.UseRegister(left), 333 selector->Emit(opcode, g.DefineSameAsFirst(node), g.Use(left),
335 g.UseImmediate(right)); 334 g.UseImmediate(right));
336 } else { 335 } else {
337 Int32BinopMatcher m(node); 336 Int32BinopMatcher m(node);
338 if (m.right().IsWord32And()) { 337 if (m.right().IsWord32And()) {
339 Int32BinopMatcher mright(right); 338 Int32BinopMatcher mright(right);
340 if (mright.right().Is(0x1F)) { 339 if (mright.right().Is(0x1F)) {
341 right = mright.left().node(); 340 right = mright.left().node();
342 } 341 }
343 } 342 }
344 selector->Emit(opcode, g.DefineSameAsFirst(node), g.UseRegister(left), 343 selector->Emit(opcode, g.DefineSameAsFirst(node), g.Use(left),
345 g.UseFixed(right, ecx)); 344 g.UseFixed(right, ecx));
346 } 345 }
347 } 346 }
348 347
349 348
350 void InstructionSelector::VisitWord32Shl(Node* node) { 349 void InstructionSelector::VisitWord32Shl(Node* node) {
351 VisitShift(this, node, kIA32Shl); 350 VisitShift(this, node, kIA32Shl);
352 } 351 }
353 352
354 353
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676 call_instr->MarkAsCall(); 675 call_instr->MarkAsCall();
677 if (deoptimization != NULL) { 676 if (deoptimization != NULL) {
678 DCHECK(continuation != NULL); 677 DCHECK(continuation != NULL);
679 call_instr->MarkAsControl(); 678 call_instr->MarkAsControl();
680 } 679 }
681 } 680 }
682 681
683 } // namespace compiler 682 } // namespace compiler
684 } // namespace internal 683 } // namespace internal
685 } // namespace v8 684 } // namespace v8
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