[turbofan] remove some of the dependency of Instruction on Schedule

src/compiler/mips/code-generator-mips.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/code-generator.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/mips/macro-assembler-mips.h"
@@ skipping 136 matching lines @@
         __ lw(kScratchReg, FieldMemOperand(func, JSFunction::kContextOffset));
         __ Assert(eq, kWrongFunctionContext, cp, Operand(kScratchReg));
       }
 
       __ lw(at, FieldMemOperand(func, JSFunction::kCodeEntryOffset));
       __ Call(at);
       AddSafepointAndDeopt(instr);
       break;
     }
     case kArchJmp:
-      __ Branch(code_->GetLabel(i.InputBlock(0)));
+      __ Branch(code_->GetLabel(i.InputRpo(0)));
       break;
     case kArchNop:
       // don't emit code for nops.
       break;
     case kArchRet:
       AssembleReturn();
       break;
     case kArchStackPointer:
       __ mov(i.OutputRegister(), sp);
       break;
@@ skipping 218 matching lines @@
   UNIMPLEMENTED();
 
 // Assembles branches after an instruction.
 void CodeGenerator::AssembleArchBranch(Instruction* instr,
                                        FlagsCondition condition) {
   MipsOperandConverter i(this, instr);
   Label done;
 
   // Emit a branch. The true and false targets are always the last two inputs
   // to the instruction.
-  BasicBlock* tblock = i.InputBlock(instr->InputCount() - 2);
-  BasicBlock* fblock = i.InputBlock(instr->InputCount() - 1);
+  BasicBlock::RpoNumber tblock =
+      i.InputRpo(static_cast<int>(instr->InputCount()) - 2);
+  BasicBlock::RpoNumber fblock =
+      i.InputRpo(static_cast<int>(instr->InputCount()) - 1);
   bool fallthru = IsNextInAssemblyOrder(fblock);
   Label* tlabel = code()->GetLabel(tblock);
   Label* flabel = fallthru ? &done : code()->GetLabel(fblock);
   Condition cc = kNoCondition;
 
   // MIPS does not have condition code flags, so compare and branch are
   // implemented differently than on the other arch's. The compare operations
   // emit mips psuedo-instructions, which are handled here by branch
   // instructions that do the actual comparison. Essential that the input
   // registers to compare psuedo-op are not modified before this branch op, as
@@ skipping 546 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8