[Hexagon] aligned load/store patterns - use cast<> instead of dyn_cast<> to avoid...

The pointer is always referenced inside isAlignedMemNode, so assert the cast is correct instead of returning nullptr

diff --git a/llvm/lib/Target/Hexagon/HexagonPatternsHVX.td b/llvm/lib/Target/Hexagon/HexagonPatternsHVX.td
index bdd46cf..6769548 100644 (file)
--- a/llvm/lib/Target/Hexagon/HexagonPatternsHVX.td
+++ b/llvm/lib/Target/Hexagon/HexagonPatternsHVX.td
@@ -92,19 +92,19 @@ def IsVecOff : PatLeaf<(i32 imm), [{
 
 
 def alignedload: PatFrag<(ops node:$a), (load $a), [{
-  return isAlignedMemNode(dyn_cast<MemSDNode>(N));
+  return isAlignedMemNode(cast<MemSDNode>(N));
 }]>;
 
 def unalignedload: PatFrag<(ops node:$a), (load $a), [{
-  return !isAlignedMemNode(dyn_cast<MemSDNode>(N));
+  return !isAlignedMemNode(cast<MemSDNode>(N));
 }]>;
 
 def alignedstore: PatFrag<(ops node:$v, node:$a), (store $v, $a), [{
-  return isAlignedMemNode(dyn_cast<MemSDNode>(N));
+  return isAlignedMemNode(cast<MemSDNode>(N));
 }]>;
 
 def unalignedstore: PatFrag<(ops node:$v, node:$a), (store $v, $a), [{
-  return !isAlignedMemNode(dyn_cast<MemSDNode>(N));
+  return !isAlignedMemNode(cast<MemSDNode>(N));
 }]>;