1 files changed, 16 insertions, 2 deletions
diff --git a/llvm/lib/IR/Function.cpp b/llvm/lib/IR/Function.cpp
index c7d3d149..ba6e4ce 100644
--- a/llvm/lib/IR/Function.cpp
+++ b/llvm/lib/IR/Function.cpp
@@ -551,7 +551,8 @@ enum IIT_Info {
   IIT_ANYPTR = 26,
   IIT_V1   = 27,
   IIT_VARARG = 28,
-  IIT_HALF_VEC_ARG = 29
+  IIT_HALF_VEC_ARG = 29,
+  IIT_SAME_VEC_WIDTH_ARG = 30
 };
 
 
@@ -659,6 +660,12 @@ static void DecodeIITType(unsigned &NextElt, ArrayRef<unsigned char> Infos,
                                              ArgInfo));
     return;
   }
+  case IIT_SAME_VEC_WIDTH_ARG: {
+    unsigned ArgInfo = (NextElt == Infos.size() ? 0 : Infos[NextElt++]);
+    OutputTable.push_back(IITDescriptor::get(IITDescriptor::SameVecWidthArgument,
+                                             ArgInfo));
+    return;
+  }
   case IIT_EMPTYSTRUCT:
     OutputTable.push_back(IITDescriptor::get(IITDescriptor::Struct, 0));
     return;
@@ -766,7 +773,14 @@ static Type *DecodeFixedType(ArrayRef<Intrinsic::IITDescriptor> &Infos,
   case IITDescriptor::HalfVecArgument:
     return VectorType::getHalfElementsVectorType(cast<VectorType>(
                                                   Tys[D.getArgumentNumber()]));
-  }
+  case IITDescriptor::SameVecWidthArgument:
+    Type *EltTy = DecodeFixedType(Infos, Tys, Context);
+    Type *Ty = Tys[D.getArgumentNumber()];
+    if (VectorType *VTy = dyn_cast<VectorType>(Ty)) {
+      return VectorType::get(EltTy, VTy->getNumElements());
+    }
+    llvm_unreachable("unhandled");
+ }
   llvm_unreachable("unhandled");
 }