[llvm] [AArch64] Lower alias mask to a whilewr (PR #100769)

[via llvm-commits]

github-actions[bot] wrote:

<!--LLVM CODE FORMAT COMMENT: {clang-format}-->


:warning: C/C++ code formatter, clang-format found issues in your code. :warning:

<details>
<summary>
You can test this locally with the following command:
</summary>

``````````bash
git-clang-format --diff c7a3346ab6a8fbd551a80bd4028ec8624daa35e4 c943b046e5eeb5faae74783b80137593a43760e6 --extensions cpp -- llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
``````````

</details>

<details>
<summary>
View the diff from clang-format here.
</summary>

``````````diff
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
index c2e9ba6291..2a4daf779f 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -13785,9 +13785,9 @@ static SDValue tryLowerToSLI(SDNode *N, SelectionDAG &DAG) {
 }
 
 /// Try to lower the construction of a pointer alias mask to a WHILEWR.
-/// The mask's enabled lanes represent the elements that will not overlap across one loop iteration.
-/// This tries to match:
-/// or (splat (setcc_lt (sub ptrA, ptrB), -(element_size - 1))),
+/// The mask's enabled lanes represent the elements that will not overlap across
+/// one loop iteration. This tries to match: or (splat (setcc_lt (sub ptrA,
+/// ptrB), -(element_size - 1))),
 ///    (get_active_lane_mask 0, (div (sub ptrA, ptrB), element_size))
 SDValue tryWhileWRFromOR(SDValue Op, SelectionDAG &DAG) {
   if (!DAG.getSubtarget<AArch64Subtarget>().hasSVE2())
@@ -13825,7 +13825,8 @@ SDValue tryWhileWRFromOR(SDValue Op, SelectionDAG &DAG) {
       (EltSize != 1 && LaneMask.getOperand(2).getOpcode() != ISD::SRA))
     return SDValue();
 
-  // An alias mask for i8 elements omits the division because it would just divide by 1
+  // An alias mask for i8 elements omits the division because it would just
+  // divide by 1
   if (EltSize > 1) {
     auto DiffDiv = LaneMask.getOperand(2);
     auto DiffDivConst = dyn_cast<ConstantSDNode>(DiffDiv.getOperand(1));

``````````

</details>


https://github.com/llvm/llvm-project/pull/100769