Use live out sets for return values instead of imp_defs, which is cleaner and faster.

[oota-llvm.git] / lib / CodeGen / IntrinsicLowering.cpp

diff --git a/lib/CodeGen/IntrinsicLowering.cpp b/lib/CodeGen/IntrinsicLowering.cpp
index 6af333e79a59abefd5255f287256c1e882af7c89..b665557d2bbc6d817f7131d6b79b48be905e89ce 100644 (file)
--- a/lib/CodeGen/IntrinsicLowering.cpp
+++ b/lib/CodeGen/IntrinsicLowering.cpp
@@ -15,7 +15,9 @@
 #include "llvm/Constants.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/Module.h"
-#include "llvm/iOther.h"
+#include "llvm/Instructions.h"
+#include <iostream>
+
 using namespace llvm;
 
 template <class ArgIt>
@@ -85,28 +87,28 @@ void DefaultIntrinsicLowering::AddPrototypes(Module &M) {
       switch (I->getIntrinsicID()) {
       default: break;
       case Intrinsic::setjmp:
-        EnsureFunctionExists(M, "setjmp", I->abegin(), I->aend(), Type::IntTy);
+        EnsureFunctionExists(M, "setjmp", I->arg_begin(), I->arg_end(), Type::IntTy);
         break;
       case Intrinsic::longjmp:
-        EnsureFunctionExists(M, "longjmp", I->abegin(), I->aend(),Type::VoidTy);
+        EnsureFunctionExists(M, "longjmp", I->arg_begin(), I->arg_end(),Type::VoidTy);
         break;
       case Intrinsic::siglongjmp:
-        EnsureFunctionExists(M, "abort", I->aend(), I->aend(), Type::VoidTy);
+        EnsureFunctionExists(M, "abort", I->arg_end(), I->arg_end(), Type::VoidTy);
         break;
       case Intrinsic::memcpy:
-        EnsureFunctionExists(M, "memcpy", I->abegin(), --I->aend(),
-                             I->abegin()->getType());
+        EnsureFunctionExists(M, "memcpy", I->arg_begin(), --I->arg_end(),
+                             I->arg_begin()->getType());
         break;
       case Intrinsic::memmove:
-        EnsureFunctionExists(M, "memmove", I->abegin(), --I->aend(),
-                             I->abegin()->getType());
+        EnsureFunctionExists(M, "memmove", I->arg_begin(), --I->arg_end(),
+                             I->arg_begin()->getType());
         break;
       case Intrinsic::memset:
-        EnsureFunctionExists(M, "memset", I->abegin(), --I->aend(),
-                             I->abegin()->getType());
+        EnsureFunctionExists(M, "memset", I->arg_begin(), --I->arg_end(),
+                             I->arg_begin()->getType());
         break;
       case Intrinsic::isunordered:
-        EnsureFunctionExists(M, "isunordered", I->abegin(), I->aend(), Type::BoolTy);
+        EnsureFunctionExists(M, "isunordered", I->arg_begin(), I->arg_end(), Type::BoolTy);
         break;
       }
 
@@ -167,6 +169,12 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
                                             cast<PointerType>(CI->getType())));
     break;
 
+  case Intrinsic::prefetch:
+    break;    // Simply strip out prefetches on unsupported architectures
+
+  case Intrinsic::pcmarker:
+    break;    // Simply strip out pcmarker on unsupported architectures
+
   case Intrinsic::dbg_stoppoint:
   case Intrinsic::dbg_region_start:
   case Intrinsic::dbg_region_end:
@@ -201,9 +209,14 @@ void DefaultIntrinsicLowering::LowerIntrinsicCall(CallInst *CI) {
     break;
   }
   case Intrinsic::isunordered: {
-    static Function *isunorderedFCache = 0;
-    ReplaceCallWith("isunordered", CI, CI->op_begin()+1, CI->op_end(),
-                    Type::BoolTy, isunorderedFCache);
+    Value *L = CI->getOperand(1);
+    Value *R = CI->getOperand(2);
+
+    Value *LIsNan = new SetCondInst(Instruction::SetNE, L, L, "LIsNan", CI);
+    Value *RIsNan = new SetCondInst(Instruction::SetNE, R, R, "RIsNan", CI);
+    CI->replaceAllUsesWith(
+      BinaryOperator::create(Instruction::Or, LIsNan, RIsNan,
+                             "isunordered", CI));
     break;
   }
   }