[TargetLowering] Make allowsMemoryAccess methode virtual.

Rename old function to explicitly show that it cares only about alignment.
The new allowsMemoryAccess call the function related to alignment by default
and can be overridden by target to inform whether the memory access is legal or
not.

Differential Revision: https://reviews.llvm.org/D67121

llvm-svn: 372935

1 files changed, 4 insertions, 4 deletions

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 690114297d6..385984a51f2 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -7316,8 +7316,8 @@ SDValue SITargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const {
   assert(Op.getValueType().getVectorElementType() == MVT::i32 &&
          "Custom lowering for non-i32 vectors hasn't been implemented.");
 
-  if (!allowsMemoryAccess(*DAG.getContext(), DAG.getDataLayout(), MemVT,
-                          *Load->getMemOperand())) {
+  if (!allowsMemoryAccessForAlignment(*DAG.getContext(), DAG.getDataLayout(),
+                                      MemVT, *Load->getMemOperand())) {
     SDValue Ops[2];
     std::tie(Ops[0], Ops[1]) = expandUnalignedLoad(Load, DAG);
     return DAG.getMergeValues(Ops, DL);
@@ -7818,8 +7818,8 @@ SDValue SITargetLowering::LowerSTORE(SDValue Op, SelectionDAG &DAG) const {
   assert(VT.isVector() &&
          Store->getValue().getValueType().getScalarType() == MVT::i32);
 
-  if (!allowsMemoryAccess(*DAG.getContext(), DAG.getDataLayout(), VT,
-                          *Store->getMemOperand())) {
+  if (!allowsMemoryAccessForAlignment(*DAG.getContext(), DAG.getDataLayout(),
+                                      VT, *Store->getMemOperand())) {
     return expandUnalignedStore(Store, DAG);
   }