[llvm-commits] CVS: llvm/utils/TableGen/CodeGenIntrinsics.h IntrinsicEmitter.cpp IntrinsicEmitter.h

[Chris Lattner]

Changes in directory llvm/utils/TableGen:

CodeGenIntrinsics.h updated: 1.4 -> 1.5
IntrinsicEmitter.cpp updated: 1.7 -> 1.8
IntrinsicEmitter.h updated: 1.5 -> 1.6
---
Log message:

emit a mapping from LLVM intrinsic -> GCC builtins.


---
Diffs of the changes:  (+30 -8)

 CodeGenIntrinsics.h  |    3 ++-
 IntrinsicEmitter.cpp |   33 ++++++++++++++++++++++++++-------
 IntrinsicEmitter.h   |    2 ++
 3 files changed, 30 insertions(+), 8 deletions(-)


Index: llvm/utils/TableGen/CodeGenIntrinsics.h
diff -u llvm/utils/TableGen/CodeGenIntrinsics.h:1.4 llvm/utils/TableGen/CodeGenIntrinsics.h:1.5
--- llvm/utils/TableGen/CodeGenIntrinsics.h:1.4	Mon Mar 13 16:38:57 2006
+++ llvm/utils/TableGen/CodeGenIntrinsics.h	Mon Mar 13 17:08:44 2006
@@ -25,7 +25,8 @@
     Record *TheDef;            // The actual record defining this instruction.
     std::string Name;          // The name of the LLVM function "llvm.bswap.i32"
     std::string EnumName;      // The name of the enum "bswap_i32"
-
+    std::string GCCBuiltinName;// Name of the corresponding GCC builtin, or "".
+    
     /// ArgTypes - The type primitive enum value for the return value and all
     /// of the arguments.  These are things like Type::UIntTyID.
     std::vector<std::string> ArgTypes;


Index: llvm/utils/TableGen/IntrinsicEmitter.cpp
diff -u llvm/utils/TableGen/IntrinsicEmitter.cpp:1.7 llvm/utils/TableGen/IntrinsicEmitter.cpp:1.8
--- llvm/utils/TableGen/IntrinsicEmitter.cpp:1.7	Mon Mar 13 16:38:57 2006
+++ llvm/utils/TableGen/IntrinsicEmitter.cpp	Mon Mar 13 17:08:44 2006
@@ -33,6 +33,7 @@
       std::string(DefName.begin(), DefName.begin()+4) != "int_")
     throw "Intrinsic '" + DefName + "' does not start with 'int_'!";
   EnumName = std::string(DefName.begin()+4, DefName.end());
+  GCCBuiltinName = R->getValueAsString("GCCBuiltinName");
   
   Name = R->getValueAsString("LLVMName");
   if (Name == "") {
@@ -105,6 +106,9 @@
   
   // Emit side effect info for each function.
   EmitSideEffectInfo(Ints, OS);
+
+  // Emit a list of intrinsics with corresponding GCC builtins.
+  EmitGCCBuiltinList(Ints, OS);
 }
 
 void IntrinsicEmitter::EmitEnumInfo(const std::vector<CodeGenIntrinsic> &Ints,
@@ -221,16 +225,31 @@
   OS << "  default: break;\n";
   for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
     switch (Ints[i].ModRef) {
-      default: break;
-      case CodeGenIntrinsic::NoMem:
-      case CodeGenIntrinsic::ReadArgMem:
-      case CodeGenIntrinsic::ReadMem:
-        OS << "  case Intrinsic::" << Ints[i].EnumName << ":\n";
-        break;
+    default: break;
+    case CodeGenIntrinsic::NoMem:
+    case CodeGenIntrinsic::ReadArgMem:
+    case CodeGenIntrinsic::ReadMem:
+      OS << "  case Intrinsic::" << Ints[i].EnumName << ":\n";
+      break;
     }
   }
   OS << "    return true; // These intrinsics have no side effects.\n";
   OS << "  }\n";
   OS << "#endif\n\n";
-  
 }
+
+void IntrinsicEmitter::
+EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS){
+  OS << "// Get the GCC builtin that corresponds to an LLVM intrinsic.\n";
+  OS << "#ifdef GET_GCC_BUILTIN_NAME\n";
+  OS << "  switch (F->getIntrinsicID()) {\n";
+  OS << "  default: BuiltinName = \"\"; break;\n";
+  for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
+    if (!Ints[i].GCCBuiltinName.empty()) {
+      OS << "  case Intrinsic::" << Ints[i].EnumName << ": BuiltinName = \""
+         << Ints[i].GCCBuiltinName << "\"; break;\n";
+    }
+  }
+  OS << "  }\n";
+  OS << "#endif\n\n";
+}
\ No newline at end of file


Index: llvm/utils/TableGen/IntrinsicEmitter.h
diff -u llvm/utils/TableGen/IntrinsicEmitter.h:1.5 llvm/utils/TableGen/IntrinsicEmitter.h:1.6
--- llvm/utils/TableGen/IntrinsicEmitter.h:1.5	Thu Mar  9 16:37:52 2006
+++ llvm/utils/TableGen/IntrinsicEmitter.h	Mon Mar 13 17:08:44 2006
@@ -37,6 +37,8 @@
                         std::ostream &OS);
     void EmitSideEffectInfo(const std::vector<CodeGenIntrinsic> &Ints, 
                             std::ostream &OS);
+    void EmitGCCBuiltinList(const std::vector<CodeGenIntrinsic> &Ints, 
+                            std::ostream &OS);
   };
 
 } // End llvm namespace