X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FIR%2FAutoUpgrade.cpp;h=2b62ea24cecbb4edf3db13e1c43c5c33835813c6;hb=79f9f85c04e1ed29670ed7a87df879bb5b42a0f1;hp=e255113aab7e3ac8cfca96eca2e6b4e5305e7dec;hpb=e7a6c2f1dfca147cdedb9683f7193882b548753d;p=oota-llvm.git

diff --git a/lib/IR/AutoUpgrade.cpp b/lib/IR/AutoUpgrade.cpp
index e255113aab7..2b62ea24cec 100644
--- a/lib/IR/AutoUpgrade.cpp
+++ b/lib/IR/AutoUpgrade.cpp
@@ -114,6 +114,9 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
         Name == "x86.avx.movnt.pd.256" ||
         Name == "x86.avx.movnt.ps.256" ||
         Name == "x86.sse42.crc32.64.8" ||
+        Name == "x86.avx.vbroadcast.ss" ||
+        Name == "x86.avx.vbroadcast.ss.256" ||
+        Name == "x86.avx.vbroadcast.sd.256" ||
         (Name.startswith("x86.xop.vpcom") && F->arg_size() == 2)) {
       NewFn = nullptr;
       return true;
@@ -170,62 +173,7 @@ bool llvm::UpgradeIntrinsicFunction(Function *F, Function *&NewFn) {
   return Upgraded;
 }
 
-static bool UpgradeGlobalStructors(GlobalVariable *GV) {
-  ArrayType *ATy = dyn_cast<ArrayType>(GV->getType()->getElementType());
-  StructType *OldTy =
-      ATy ? dyn_cast<StructType>(ATy->getElementType()) : nullptr;
-
-  // Only upgrade an array of a two field struct with the appropriate field
-  // types.
-  if (!OldTy || OldTy->getNumElements() != 2)
-    return false;
-
-  // Get the upgraded 3 element type.
-  PointerType *VoidPtrTy = Type::getInt8Ty(GV->getContext())->getPointerTo();
-  Type *Tys[3] = {
-    OldTy->getElementType(0),
-    OldTy->getElementType(1),
-    VoidPtrTy
-  };
-  StructType *NewTy =
-      StructType::get(GV->getContext(), Tys, /*isPacked=*/false);
-
-  // Build new constants with a null third field filled in.
-  Constant *OldInitC = GV->getInitializer();
-  ConstantArray *OldInit = dyn_cast<ConstantArray>(OldInitC);
-  if (!OldInit && !isa<ConstantAggregateZero>(OldInitC))
-    return false;
-  std::vector<Constant *> Initializers;
-  if (OldInit) {
-    for (Use &U : OldInit->operands()) {
-      ConstantStruct *Init = cast<ConstantStruct>(&U);
-      Constant *NewInit =
-        ConstantStruct::get(NewTy, Init->getOperand(0), Init->getOperand(1),
-                            Constant::getNullValue(VoidPtrTy), nullptr);
-      Initializers.push_back(NewInit);
-    }
-  }
-  assert(Initializers.size() == ATy->getNumElements());
-
-  // Replace the old GV with a new one.
-  ATy = ArrayType::get(NewTy, Initializers.size());
-  Constant *NewInit = ConstantArray::get(ATy, Initializers);
-  GlobalVariable *NewGV = new GlobalVariable(
-      *GV->getParent(), ATy, GV->isConstant(), GV->getLinkage(), NewInit, "",
-      GV, GV->getThreadLocalMode(), GV->getType()->getAddressSpace(),
-      GV->isExternallyInitialized());
-  NewGV->copyAttributesFrom(GV);
-  NewGV->takeName(GV);
-  assert(GV->use_empty() && "program cannot use initializer list");
-  GV->eraseFromParent();
-  return true;
-}
-
 bool llvm::UpgradeGlobalVariable(GlobalVariable *GV) {
-  if (GV->getName() == "llvm.global_ctors" ||
-      GV->getName() == "llvm.global_dtors")
-    return UpgradeGlobalStructors(GV);
-
   // Nothing to do yet.
   return false;
 }
@@ -335,6 +283,19 @@ void llvm::UpgradeIntrinsicCall(CallInst *CI, Function *NewFn) {
       Value *Trunc0 = Builder.CreateTrunc(CI->getArgOperand(0), Type::getInt32Ty(C));
       Rep = Builder.CreateCall2(CRC32, Trunc0, CI->getArgOperand(1));
       Rep = Builder.CreateZExt(Rep, CI->getType(), "");
+    } else if (Name.startswith("llvm.x86.avx.vbroadcast")) {
+      // Replace broadcasts with a series of insertelements.
+      Type *VecTy = CI->getType();
+      Type *EltTy = VecTy->getVectorElementType();
+      unsigned EltNum = VecTy->getVectorNumElements();
+      Value *Cast = Builder.CreateBitCast(CI->getArgOperand(0),
+                                          EltTy->getPointerTo());
+      Value *Load = Builder.CreateLoad(Cast);
+      Type *I32Ty = Type::getInt32Ty(C);
+      Rep = UndefValue::get(VecTy);
+      for (unsigned I = 0; I < EltNum; ++I)
+        Rep = Builder.CreateInsertElement(Rep, Load,
+                                          ConstantInt::get(I32Ty, I));
     } else {
       bool PD128 = false, PD256 = false, PS128 = false, PS256 = false;
       if (Name == "llvm.x86.avx.vpermil.pd.256")
@@ -561,3 +522,12 @@ bool llvm::UpgradeDebugInfo(Module &M) {
   }
   return RetCode;
 }
+
+void llvm::UpgradeMDStringConstant(std::string &String) {
+  const std::string OldPrefix = "llvm.vectorizer.";
+  if (String == "llvm.vectorizer.unroll") {
+    String = "llvm.loop.interleave.count";
+  } else if (String.find(OldPrefix) == 0) {
+    String.replace(0, OldPrefix.size(), "llvm.loop.vectorize.");
+  }
+}