[llvm] [RISCV][WIP] Fold (sh3add Z, (add X, (slli Y, 6))) -> (sh3add (sh3add Y, Z), X). (PR #85734)

[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 470040bd4d54f39f9ac0868a2197fa2ae3e6d4f5 dbd3f2e1775a57e63c40afbdbc35897d5672484f -- llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp llvm/lib/Target/RISCV/RISCVISelDAGToDAG.h
``````````

</details>

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

``````````diff
diff --git a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
index 42eb4104ae..e7ab25b6e8 100644
--- a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
@@ -3352,10 +3352,10 @@ bool RISCVDAGToDAGISel::doPeepholeSHXADD(SDNode *N) {
   SDValue Y = N11.getOperand(0);
   SDValue Z = N->getOperand(0);
 
-  SDNode *SH3ADD1 = CurDAG->getMachineNode(RISCV::SH3ADD, SDLoc(N), N->getValueType(0),
-                                          Y, Z);
-  SDNode *SH3ADD2 = CurDAG->getMachineNode(RISCV::SH3ADD, SDLoc(N), N->getValueType(0),
-                                           SDValue(SH3ADD1, 0), X);
+  SDNode *SH3ADD1 =
+      CurDAG->getMachineNode(RISCV::SH3ADD, SDLoc(N), N->getValueType(0), Y, Z);
+  SDNode *SH3ADD2 = CurDAG->getMachineNode(
+      RISCV::SH3ADD, SDLoc(N), N->getValueType(0), SDValue(SH3ADD1, 0), X);
   ReplaceUses(N, SH3ADD2);
   return true;
 }

``````````

</details>


https://github.com/llvm/llvm-project/pull/85734