[SVE][MVT] Fixed-length vector MVT ranges

  * Reordered MVT simple types to group scalable vector types
    together.
  * New range functions in MachineValueType.h to only iterate over
    the fixed-length int/fp vector types.
  * Stopped backends which don't support scalable vector types from
    iterating over scalable types.

Reviewers: sdesmalen, greened

Reviewed By: greened

Differential Revision: https://reviews.llvm.org/D66339

llvm-svn: 372099

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp b/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
index 26a178c5378..ac70b4db86e 100644
--- a/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
@@ -1439,12 +1439,12 @@ HexagonTargetLowering::HexagonTargetLowering(const TargetMachine &TM,
     ISD::CONCAT_VECTORS,        ISD::VECTOR_SHUFFLE
   };
 
-  for (MVT VT : MVT::vector_valuetypes()) {
+  for (MVT VT : MVT::fixedlen_vector_valuetypes()) {
     for (unsigned VectExpOp : VectExpOps)
       setOperationAction(VectExpOp, VT, Expand);
 
     // Expand all extending loads and truncating stores:
-    for (MVT TargetVT : MVT::vector_valuetypes()) {
+    for (MVT TargetVT : MVT::fixedlen_vector_valuetypes()) {
       if (TargetVT == VT)
         continue;
       setLoadExtAction(ISD::EXTLOAD, TargetVT, VT, Expand);
@@ -1864,7 +1864,7 @@ bool HexagonTargetLowering::isShuffleMaskLegal(ArrayRef<int> Mask,
 
 TargetLoweringBase::LegalizeTypeAction
 HexagonTargetLowering::getPreferredVectorAction(MVT VT) const {
-  if (VT.getVectorNumElements() == 1)
+  if (VT.getVectorNumElements() == 1 || VT.isScalableVector())
     return TargetLoweringBase::TypeScalarizeVector;
 
   // Always widen vectors of i1.