Add the isunordered intrinsic.

llvm-svn: 14127

llvm/include/llvm/Intrinsics.h

@@ -60,7 +60,6 @@ namespace Intrinsic {
     memset,         // Fill memory with a byte value
 
     // Standard libm functions.
-    
 
     // Input/Output intrinsics.
     readport,
@@ -68,6 +67,9 @@ namespace Intrinsic {
     readio,
     writeio,
 
+    // Support for unordered compare intrinsic
+    isunordered,
+
     //===------------------------------------------------------------------===//
     // This section defines intrinsic functions used to represent Alpha
     // instructions.

llvm/lib/VMCore/Function.cpp

@@ -222,6 +222,9 @@ unsigned Function::getIntrinsicID() const {
     if (getName() == "llvm.gcread")  return Intrinsic::gcread;
     if (getName() == "llvm.gcroot")  return Intrinsic::gcroot;
     break;
+  case 'i':
+    if (getName() == "llvm.isunordered") return Intrinsic::isunordered;
+    break;
   case 'l':
     if (getName() == "llvm.longjmp")  return Intrinsic::longjmp;
     break;

llvm/lib/VMCore/IntrinsicLowering.cpp

@@ -191,6 +191,12 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
                     (*(CI->op_begin()+1))->getType(), MemsetFCache);
     break;
   }
+  case Intrinsic::isunordered: {
+    static Function *IsunorderedFCache = 0;
+    ReplaceCallWith("isunordered", CI, CI->op_begin()+1, CI->op_end(),
+                    (*(CI->op_begin()+1))->getType(), IsunorderedFCache);
+    break;
+  }
   }
   
   assert(CI->use_empty() &&

llvm/lib/VMCore/Verifier.cpp

@@ -688,6 +688,8 @@ void Verifier::visitIntrinsicFunctionCall(Intrinsic::ID ID, CallInst &CI) {
     break;
   }
 
+  case Intrinsic::isunordered:     NumArgs = 2; break;
+
   case Intrinsic::setjmp:          NumArgs = 1; break;
   case Intrinsic::longjmp:         NumArgs = 2; break;
   case Intrinsic::sigsetjmp:       NumArgs = 2; break;