[PATCH] D80140: [x86] Propagate memory operands during ISel DAG postprocessing

[Jean-Michel Gorius via Phabricator via llvm-commits]

Kayjukh created this revision.
Kayjukh added reviewers: craig.topper, rnk, lebedev.ri.
Herald added subscribers: llvm-commits, hiraditya.
Herald added a project: LLVM.

Propagate memory operands when folding test instructions.

This was split from D80062 <https://reviews.llvm.org/D80062>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D80140

Files:
  llvm/lib/Target/X86/X86ISelDAGToDAG.cpp


Index: llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
===================================================================
--- llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -1388,6 +1388,8 @@
                           And.getOperand(6)  /* Chain */ };
         MachineSDNode *Test = CurDAG->getMachineNode(NewOpc, SDLoc(N),
                                                      MVT::i32, MVT::Other, Ops);
+        CurDAG->setNodeMemRefs(
+            Test, cast<MachineSDNode>(And.getNode())->memoperands());
         ReplaceUses(N, Test);
         MadeChange = true;
         continue;


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