[llvm] r368388 - [X86] Now unreachable handling for f64->v2i32/v4i16/v8i8 bitcasts from ReplaceNodeResults.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Thu Aug  8 20:09:19 2019
New Revision: 368388

URL: http://llvm.org/viewvc/llvm-project?rev=368388&view=rev
Log:
[X86] Now unreachable handling for f64->v2i32/v4i16/v8i8 bitcasts from ReplaceNodeResults.

We rely on the generic type legalizer for this now.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=368388&r1=368387&r2=368388&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Thu Aug  8 20:09:19 2019
@@ -28104,20 +28104,6 @@ void X86TargetLowering::ReplaceNodeResul
       return;
     }
 
-    if (SrcVT != MVT::f64 ||
-        (DstVT != MVT::v2i32 && DstVT != MVT::v4i16 && DstVT != MVT::v8i8) ||
-        getTypeAction(*DAG.getContext(), DstVT) == TypeWidenVector)
-      return;
-
-    unsigned NumElts = DstVT.getVectorNumElements();
-    EVT SVT = DstVT.getVectorElementType();
-    EVT WiderVT = EVT::getVectorVT(*DAG.getContext(), SVT, NumElts * 2);
-    SDValue Res;
-    Res = DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, MVT::v2f64, N->getOperand(0));
-    Res = DAG.getBitcast(WiderVT, Res);
-    Res = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, DstVT, Res,
-                      DAG.getIntPtrConstant(0, dl));
-    Results.push_back(Res);
     return;
   }
   case ISD::MGATHER: {