[turbofan] move label generation to code generator

src/compiler/code-generator-impl.h

 // Copyright 2013 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.
 
 #ifndef V8_COMPILER_CODE_GENERATOR_IMPL_H_
 #define V8_COMPILER_CODE_GENERATOR_IMPL_H_
 
 #include "src/code-stubs.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/instruction.h"
@@ skipping 39 matching lines @@
   }
 
   uint8_t InputInt6(int index) {
     return static_cast<uint8_t>(InputInt32(index) & 0x3F);
   }
 
   Handle<HeapObject> InputHeapObject(int index) {
     return ToHeapObject(instr_->InputAt(index));
   }
 
-  Label* InputLabel(int index) {
-    return gen_->code()->GetLabel(InputRpo(index));
-  }
+  Label* InputLabel(int index) { return gen_->GetLabel(InputRpo(index)); }
 
   BasicBlock::RpoNumber InputRpo(int index) {
     int rpo_number = InputInt32(index);
     return BasicBlock::RpoNumber::FromInt(rpo_number);
   }
 
   Register OutputRegister(int index = 0) {
     return ToRegister(instr_->OutputAt(index));
   }
 
@@ skipping 44 matching lines @@
 #if V8_TARGET_ARCH_ARM64 || V8_TARGET_ARCH_ARM
   masm->CheckConstPool(true, false);
 #endif
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CODE_GENERATOR_IMPL_H