Start processing function blocks in Subzero.

src/IceTypes.cpp

Index: src/IceTypes.cpp
diff --git a/src/IceTypes.cpp b/src/IceTypes.cpp
index 515be2d667aee80b3d70d6e295704958bec07961..5fb57565a7a2fe94155954972b5905f04e481084 100644
--- a/src/IceTypes.cpp
+++ b/src/IceTypes.cpp
@@ -24,9 +24,10 @@ const struct {
   size_t TypeNumElements;
   Type TypeElementType;
   const char *DisplayString;
+  uint32_t TypeFlags;
 } TypeAttributes[] = {
-#define X(tag, size, align, elts, elty, str)                                   \
-  { size, align, elts, elty, str }                                             \
+#define X(tag, size, align, elts, elty, str, flags)                            \
+  { size, align, elts, elty, str, flags }                                      \
   ,
     ICETYPE_TABLE
 #undef X
@@ -81,9 +82,23 @@ Type typeElementType(Type Ty) {
   return ElementType;
 }
 
+bool isIntegerType(Type Ty) {
+  size_t Index = static_cast<size_t>(Ty);
+  if (Index < TypeAttributesSize)
+    return TypeAttributes[Index].TypeFlags == TypeFlagIsInteger;
+  llvm_unreachable("Invalid type for typeIsInteger()");
+}
+
+bool isFloatingType(Type Ty) {
+  size_t Index = static_cast<size_t>(Ty);
+  if (Index < TypeAttributesSize)
+    return TypeAttributes[Index].TypeFlags == TypeFlagIsFloating;
+  llvm_unreachable("Invalid type for typeIsFloating()");
+}
+
 // ======================== Dump routines ======================== //
 
-template <> Ostream &operator<<(Ostream &Str, const Type &Ty) {
+Ostream &operator<<(Ostream &Str, const Type &Ty) {
   size_t Index = static_cast<size_t>(Ty);
   if (Index < TypeAttributesSize) {
     Str << TypeAttributes[Index].DisplayString;