[llvm] [NFC] Fix "shift implicitly converted" warning introduced by #154761 (PR #158619)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-aarch64

Author: Kerry McLaughlin (kmclaughlin-arm)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/158619.diff


1 Files Affected:

- (modified) llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp (+1-1) 


``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
index 235dbc41c4bef..54bdb8750f709 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp
@@ -947,7 +947,7 @@ bool AArch64DAGToDAGISel::SelectRDSVLShiftImm(SDValue N, SDValue &Imm) {
   if (!isa<ConstantSDNode>(N))
     return false;
 
-  int64_t MulImm = 1 << cast<ConstantSDNode>(N)->getSExtValue();
+  int64_t MulImm = 1LL << cast<ConstantSDNode>(N)->getSExtValue();
   if (MulImm >= Low && MulImm <= High) {
     Imm = CurDAG->getSignedTargetConstant(MulImm, SDLoc(N), MVT::i32);
     return true;

``````````

</details>


https://github.com/llvm/llvm-project/pull/158619