Add a few Subzero intrinsics (not the atomic ones yet).

src/IceGlobalContext.h

 //===- subzero/src/IceGlobalContext.h - Global context defs -----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares aspects of the compilation that persist across
 // multiple functions.
 //
 //===----------------------------------------------------------------------===//
 
 #ifndef SUBZERO_SRC_ICEGLOBALCONTEXT_H
 #define SUBZERO_SRC_ICEGLOBALCONTEXT_H
 
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/Support/Allocator.h"
 #include "llvm/Support/raw_ostream.h"
 
 #include "IceDefs.h"
+#include "IceIntrinsics.h"
 #include "IceTypes.h"
 
 namespace Ice {
 
 // TODO: Accesses to all non-const fields of GlobalContext need to
 // be synchronized, especially the constant pool, the allocator, and
 // the output streams.
 class GlobalContext {
 public:
   GlobalContext(llvm::raw_ostream *OsDump, llvm::raw_ostream *OsEmit,
@@ skipping 44 matching lines @@
   // Returns a symbolic constant.
   Constant *getConstantSym(Type Ty, int64_t Offset, const IceString &Name = "",
                            bool SuppressMangling = false);
   // getConstantPool() returns a copy of the constant pool for
   // constants of a given type.
   ConstantList getConstantPool(Type Ty) const;
 
   // Allocate data of type T using the global allocator.
   template <typename T> T *allocate() { return Allocator.Allocate<T>(); }
 
+  // Return the IntrinsicInfo for a function with the given Name.
+  // Return UnknownIntrinsicInfo if the name does not match any
+  // known intrinsics.
+  IntrinsicInfo getIntrinsicInfo(const IceString &Name) const;
+
 private:
   Ostream StrDump; // Stream for dumping / diagnostics
   Ostream StrEmit; // Stream for code emission
 
   llvm::BumpPtrAllocator Allocator;
   VerboseMask VMask;
   llvm::OwningPtr<class ConstantPool> ConstPool;
+  IntrinsicMap IntrinsicInfos;
   const TargetArch Arch;
   const OptLevel Opt;
   const IceString TestPrefix;
   bool HasEmittedFirstMethod;
   GlobalContext(const GlobalContext &) LLVM_DELETED_FUNCTION;
   GlobalContext &operator=(const GlobalContext &) LLVM_DELETED_FUNCTION;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEGLOBALCONTEXT_H