Add support for vector types and vector constants.

src/IceTypes.cpp

 //===- subzero/src/IceTypes.cpp - Primitive type properties ---------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines a few attributes of Subzero primitive types.
 //
 //===----------------------------------------------------------------------===//
 
 #include "IceDefs.h"
 #include "IceTypes.h"
 
 namespace Ice {
 
 namespace {
 
 const struct {
   size_t TypeWidthInBytes;
   size_t TypeAlignInBytes;
+  size_t TypeNumElements;
+  Type TypeElementType;
   const char *DisplayString;
 } TypeAttributes[] = {
-#define X(tag, size, align, str)                                               \
-  { size, align, str }                                                         \
+#define X(tag, size, align, elts, elty, str)                                   \
+  { size, align, elts, elty, str }                                             \
   ,
     ICETYPE_TABLE
 #undef X
   };
 
 const size_t TypeAttributesSize =
     sizeof(TypeAttributes) / sizeof(*TypeAttributes);
 
 } // end anonymous namespace
 
@@ skipping 12 matching lines @@
   size_t Align = 0;
   size_t Index = static_cast<size_t>(Ty);
   if (Index < TypeAttributesSize) {
     Align = TypeAttributes[Index].TypeAlignInBytes;
   } else {
     llvm_unreachable("Invalid type for typeAlignInBytes()");
   }
   return Align;
 }
 
+size_t typeNumElements(Type Ty) {
+  size_t NumElements = 0;
+  size_t Index = static_cast<size_t>(Ty);
+  if (Index < TypeAttributesSize) {
+    NumElements = TypeAttributes[Index].TypeNumElements;
+  } else {
+    llvm_unreachable("Invalid type for typeNumElements()");
+  }
+  return NumElements;
+}
+
+Type typeElementType(Type Ty) {
+  Type ElementType = IceType_void;
+  size_t Index = static_cast<size_t>(Ty);
+  if (Index < TypeAttributesSize) {
+    ElementType = TypeAttributes[Index].TypeElementType;
+  } else {
+    llvm_unreachable("Invalid type for typeElementType()");
+  }
+  return ElementType;
+}
+
 // ======================== Dump routines ======================== //
 
 template <> Ostream &operator<<(Ostream &Str, const Type &Ty) {
   size_t Index = static_cast<size_t>(Ty);
   if (Index < TypeAttributesSize) {
     Str << TypeAttributes[Index].DisplayString;
   } else {
     Str << "???";
     llvm_unreachable("Invalid type for printing");
   }
 
   return Str;
 }
 
 } // end of namespace Ice