Add signed/unsigned 8-bit and 16-bit Representations

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index fbe8e171fa596967a65aff143823863b4570dca8..46d4d49dc4314a42e17e9cd46d69a719b70625e6 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -3016,11 +3016,7 @@ void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
   if (access.IsExternalMemory()) {
     Register result = ToRegister(instr->result());
     MemOperand operand = MemOperand(object, offset);
-    if (access.representation().IsByte()) {
-      __ ldrb(result, operand);
-    } else {
-      __ ldr(result, operand);
-    }
+    __ Load(result, operand, access.representation());
     return;
   }
 
@@ -3036,11 +3032,7 @@ void LCodeGen::DoLoadNamedField(LLoadNamedField* instr) {
     object = result;
   }
   MemOperand operand = FieldMemOperand(object, offset);
-  if (access.representation().IsByte()) {
-    __ ldrb(result, operand);
-  } else {
-    __ ldr(result, operand);
-  }
+  __ Load(result, operand, access.representation());
 }
 
 
@@ -4143,11 +4135,7 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
   if (access.IsExternalMemory()) {
     Register value = ToRegister(instr->value());
     MemOperand operand = MemOperand(object, offset);
-    if (representation.IsByte()) {
-      __ strb(value, operand);
-    } else {
-      __ str(value, operand);
-    }
+    __ Store(value, operand, representation);
     return;
   }
 
@@ -4193,11 +4181,7 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
           ? OMIT_SMI_CHECK : INLINE_SMI_CHECK;
   if (access.IsInobject()) {
     MemOperand operand = FieldMemOperand(object, offset);
-    if (representation.IsByte()) {
-      __ strb(value, operand);
-    } else {
-      __ str(value, operand);
-    }
+    __ Store(value, operand, representation);
     if (instr->hydrogen()->NeedsWriteBarrier()) {
       // Update the write barrier for the object for in-object properties.
       __ RecordWriteField(object,
@@ -4212,11 +4196,7 @@ void LCodeGen::DoStoreNamedField(LStoreNamedField* instr) {
   } else {
     __ ldr(scratch, FieldMemOperand(object, JSObject::kPropertiesOffset));
     MemOperand operand = FieldMemOperand(scratch, offset);
-    if (representation.IsByte()) {
-      __ strb(value, operand);
-    } else {
-      __ str(value, operand);
-    }
+    __ Store(value, operand, representation);
     if (instr->hydrogen()->NeedsWriteBarrier()) {
       // Update the write barrier for the properties array.
       // object is used as a scratch register.