Reapply 63765. Patches for clang and llvm-gcc to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63812 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 54 insertions, 1 deletions

diff --git a/include/llvm/Target/TargetIntrinsicInfo.h b/include/llvm/Target/TargetIntrinsicInfo.h
index e69de29bb2..323e29afee 100644
--- a/include/llvm/Target/TargetIntrinsicInfo.h
+++ b/include/llvm/Target/TargetIntrinsicInfo.h
@@ -0,0 +1,48 @@
+//===-- llvm/Target/TargetIntrinsicInfo.h - Instruction Info ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file describes the target intrinsic instructions to the code generator.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TARGET_TARGETINTRINSICINFO_H
+#define LLVM_TARGET_TARGETINTRINSICINFO_H
+
+namespace llvm {
+
+class Function;
+class Module;
+
+//---------------------------------------------------------------------------
+///
+/// TargetIntrinsicInfo - Interface to description of machine instruction set
+///
+class TargetIntrinsicInfo {
+  
+  const char **Intrinsics;               // Raw array to allow static init'n
+  unsigned NumIntrinsics;                // Number of entries in the desc array
+
+  TargetIntrinsicInfo(const TargetIntrinsicInfo &);  // DO NOT IMPLEMENT
+  void operator=(const TargetIntrinsicInfo &);   // DO NOT IMPLEMENT
+public:
+  TargetIntrinsicInfo(const char **desc, unsigned num);
+  virtual ~TargetIntrinsicInfo();
+
+  unsigned getNumIntrinsics() const { return NumIntrinsics; }
+
+  virtual Function *getDeclaration(Module *M, const char *BuiltinName) const {
+    return 0;
+  }
+  
+  virtual unsigned getIntrinsicID(Function *F) const { return 0; }
+};
+
+} // End llvm namespace
+
+#endif
diff --git a/include/llvm/Target/TargetMachine.h b/include/llvm/Target/TargetMachine.h
index b8bfc83aad..0be3286f71 100644
--- a/include/llvm/Target/TargetMachine.h
+++ b/include/llvm/Target/TargetMachine.h
@@ -23,6 +23,7 @@ class TargetAsmInfo;
 class TargetData;
 class TargetSubtarget;
 class TargetInstrInfo;
+class TargetIntrinsicInfo;
 class TargetJITInfo;
 class TargetLowering;
 class TargetFrameInfo;
@@ -118,7 +119,6 @@ public:
   virtual       TargetLowering    *getTargetLowering() const { return 0; }
   virtual const TargetData            *getTargetData() const { return 0; }
   
-  
   /// getTargetAsmInfo - Return target specific asm information.
   ///
   const TargetAsmInfo *getTargetAsmInfo() const {
@@ -141,6 +141,11 @@ public:
   /// details of graph coloring register allocation removed from it.
   ///
   virtual const TargetRegisterInfo *getRegisterInfo() const { return 0; }
+  
+  /// getIntrinsicInfo - If intrinsic information is available, return it.  If
+  /// not, return null.
+  ///
+  virtual const TargetIntrinsicInfo *getIntrinsicInfo() const { return 0; }
 
   /// getJITInfo - If this target supports a JIT, return information for it,
   /// otherwise return null.