Remove intrinsic annotation.

This was previously used to determine whether an intrinsic was inlined or not
in yk. We now do this by peeking at the trace, which means this annotation is
no longer needed.

Author: ptersilie

llvm/lib/Target/X86/X86FastISel.cpp

@@ -2574,19 +2574,6 @@ bool X86FastISel::TryEmitSmallMemcpy(X86AddressMode DestAM,
   return true;
 }
 
-// Add an annotation to an intrinsic instruction, specifying whether the
-// intrinsic has been inlined or not.
-//
-// This is only necessary for intrinsics which may emit machine code.
-void annotateIntrinsic(const IntrinsicInst *II, bool Inlined) {
-  IntrinsicInst *CI = const_cast<IntrinsicInst *>(II);
-  LLVMContext &C = CI->getContext();
-  ConstantInt *CInt;
-  CInt = ConstantInt::get(C, APInt(1, Inlined ? 1 : 0));
-  MDNode *N = MDNode::get(C, ConstantAsMetadata::get(CInt));
-  CI->setMetadata("yk.intrinsic.inlined", N);
-}
-
 bool X86FastISel::fastLowerIntrinsicCall(const IntrinsicInst *II) {
   // FIXME: Handle more intrinsics.
   switch (II->getIntrinsicID()) {
@@ -2724,7 +2711,6 @@ bool X86FastISel::fastLowerIntrinsicCall(const IntrinsicInst *II) {
       // without a call if possible.
       uint64_t Len = cast<ConstantInt>(MCI->getLength())->getZExtValue();
       if (IsMemcpySmall(Len)) {
-        annotateIntrinsic(II, true);
         X86AddressMode DestAM, SrcAM;
         if (!X86SelectAddress(MCI->getRawDest(), DestAM) ||
             !X86SelectAddress(MCI->getRawSource(), SrcAM))
@@ -2741,7 +2727,6 @@ bool X86FastISel::fastLowerIntrinsicCall(const IntrinsicInst *II) {
     if (MCI->getSourceAddressSpace() > 255 || MCI->getDestAddressSpace() > 255)
       return false;
 
-    annotateIntrinsic(II, false);
     return lowerCallTo(II, "memcpy", II->arg_size() - 1);
   }
   case Intrinsic::memset: {