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

6 files changed, 64 insertions, 2 deletions

diff --git a/include/llvm/Function.h b/include/llvm/Function.h
index 689d0e6..942a5f0 100644
--- a/include/llvm/Function.h
+++ b/include/llvm/Function.h
@@ -129,7 +129,7 @@ public:
   /// The particular intrinsic functions which correspond to this value are
   /// defined in llvm/Intrinsics.h.
   ///
-  unsigned getIntrinsicID(bool noAssert = false) const;
+  unsigned getIntrinsicID() const;
   bool isIntrinsic() const { return getIntrinsicID() != 0; }
 
   /// getCallingConv()/setCallingConv(uint) - These method get and set the
diff --git a/include/llvm/Intrinsics.h b/include/llvm/Intrinsics.h
index b15b021..2433599 100644
--- a/include/llvm/Intrinsics.h
+++ b/include/llvm/Intrinsics.h
@@ -63,6 +63,9 @@ namespace Intrinsic {
   /// intrinsic.
   Function *getDeclaration(Module *M, ID id, const Type **Tys = 0, 
                            unsigned numTys = 0);
+                           
+  /// Map a GCC builtin name to an intrinsic ID.
+  ID getIntrinsicForGCCBuiltin(const char *Prefix, const char *BuiltinName);
   
 } // End Intrinsic namespace
 
diff --git a/include/llvm/Intrinsics.td b/include/llvm/Intrinsics.td
index 8145700..4ecc1a7 100644
--- a/include/llvm/Intrinsics.td
+++ b/include/llvm/Intrinsics.td
@@ -144,6 +144,8 @@ class Intrinsic<list<LLVMType> ret_types,
   list<LLVMType> RetTypes = ret_types;
   list<LLVMType> ParamTypes = param_types;
   list<IntrinsicProperty> Properties = properties;
+
+  bit isTarget = 0;
 }
 
 /// GCCBuiltin - If this intrinsic exactly corresponds to a GCC builtin, this
diff --git a/include/llvm/Module.h b/include/llvm/Module.h
index b0db50a..aa2c449 100644
--- a/include/llvm/Module.h
+++ b/include/llvm/Module.h
@@ -213,6 +213,10 @@ public:
   Constant *getOrInsertFunction(const std::string &Name, const Type *RetTy, ...)
     END_WITH_NULL;
 
+  Constant *getOrInsertTargetIntrinsic(const std::string &Name,
+                                       const FunctionType *Ty,
+                                       AttrListPtr AttributeList);
+  
   /// getFunction - Look up the specified function in the module symbol table.
   /// If it does not exist, return null.
   Function *getFunction(const std::string &Name) const;
diff --git a/include/llvm/Target/TargetIntrinsicInfo.h b/include/llvm/Target/TargetIntrinsicInfo.h
index e69de29..323e29a 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 b8bfc83..0be3286 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.