[PATCH] D152222: [RISCV] Fix the num of chain SDNode introduced in 9e0f9f113248093e737c4cf5450f0a3c2bcd90ba

[Zixuan Wu via Phabricator via llvm-commits]

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It's a little bug fix of patch 9e0f9f113248093e737c4cf5450f0a3c2bcd90ba <https://reviews.llvm.org/rG9e0f9f113248093e737c4cf5450f0a3c2bcd90ba> which will get wrong chain num when it's load and update node.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D152222

Files:
  llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp


Index: llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
+++ llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp
@@ -2127,7 +2127,7 @@
     }
 
     // Update the chain.
-    ReplaceUses(Src.getValue(1), SDValue(Load, 1));
+    ReplaceUses(Src.getValue(Ld->isIndexed() ? 2 : 1), SDValue(Load, 1));
     // Record the mem-refs
     CurDAG->setNodeMemRefs(Load, {Ld->getMemOperand()});
     // Replace the splat with the vlse.


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