[compiler] Delay allocation of code-embedded heap numbers.

src/compiler/arm64/code-generator-arm64.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/arm64/assembler-arm64-inl.h"
 #include "src/arm64/frames-arm64.h"
 #include "src/arm64/macro-assembler-arm64-inl.h"
 #include "src/compilation-info.h"
@@ skipping 65 matching lines @@
 
   Register InputOrZeroRegister64(size_t index) {
     DCHECK(instr_->InputAt(index)->IsRegister() ||
            (instr_->InputAt(index)->IsImmediate() && (InputInt64(index) == 0)));
     if (instr_->InputAt(index)->IsImmediate()) {
       return xzr;
     }
     return InputRegister64(index);
   }
 
-  Operand InputImmediate(size_t index) {
-    return ToImmediate(instr_->InputAt(index));
-  }
-
   Operand InputOperand(size_t index) {
     return ToOperand(instr_->InputAt(index));
   }
 
   Operand InputOperand64(size_t index) { return InputOperand(index); }
 
   Operand InputOperand32(size_t index) {
     return ToOperand32(instr_->InputAt(index));
   }
 
@@ skipping 118 matching lines @@
           return Operand(constant.ToInt32());
         }
       case Constant::kInt64:
         if (RelocInfo::IsWasmPtrReference(constant.rmode())) {
           return Operand(constant.ToInt64(), constant.rmode());
         } else {
           DCHECK(!RelocInfo::IsWasmSizeReference(constant.rmode()));
           return Operand(constant.ToInt64());
         }
       case Constant::kFloat32:
-        return Operand(
-            isolate()->factory()->NewNumber(constant.ToFloat32(), TENURED));
+        return Operand(Operand::EmbeddedNumber(constant.ToFloat32()));
       case Constant::kFloat64:
-        return Operand(
-            isolate()->factory()->NewNumber(constant.ToFloat64(), TENURED));
+        return Operand(Operand::EmbeddedNumber(constant.ToFloat64()));
       case Constant::kExternalReference:
         return Operand(constant.ToExternalReference());
       case Constant::kHeapObject:
         return Operand(constant.ToHeapObject());
       case Constant::kRpoNumber:
         UNREACHABLE();  // TODO(dcarney): RPO immediates on arm64.
         break;
     }
     UNREACHABLE();
   }
@@ skipping 2093 matching lines @@
       padding_size -= kInstructionSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8