[llvm] [RISCV] Check for null LIS before trying to move AVL in canMutatePriorConfig. (PR #196673)

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Fri May 8 20:12:32 PDT 2026


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git-clang-format --diff origin/main HEAD --extensions cpp -- llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp --diff_from_common_commit
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diff --git a/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp b/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
index 9eeadadc9..81ea9a8e6 100644
--- a/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
+++ b/llvm/lib/Target/RISCV/RISCVInsertVSETVLI.cpp
@@ -776,8 +776,8 @@ bool RISCVInsertVSETVLI::canMutatePriorConfig(
       VNInfo *VNI = getVNInfoFromReg(AVL.getReg(), MI, LIS);
       VNInfo *PrevVNI = getVNInfoFromReg(AVL.getReg(), PrevMI, LIS);
       if (!VNI || !PrevVNI || VNI != PrevVNI) {
-        // If LIS is null, we were not able to get the VNInfo so we don't know if 
-        // the AVL def needs to be moved.
+        // If LIS is null, we were not able to get the VNInfo so we don't know
+        // if the AVL def needs to be moved.
         if (!LIS)
           return false;
         // If the AVL is defined by a load immediate instruction (ADDI x0, imm),

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https://github.com/llvm/llvm-project/pull/196673


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