[PATCH] D87490: [MachineInstr] return mayAlias for not mayLoadOrStore instructions.

[ChenZheng via Phabricator via llvm-commits]

shchenz updated this revision to Diff 291485.
shchenz added a comment.

explicitly check for `isCall`


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D87490/new/

https://reviews.llvm.org/D87490

Files:
  llvm/lib/CodeGen/MachineInstr.cpp


Index: llvm/lib/CodeGen/MachineInstr.cpp
===================================================================
--- llvm/lib/CodeGen/MachineInstr.cpp
+++ llvm/lib/CodeGen/MachineInstr.cpp
@@ -1234,6 +1234,11 @@
   const TargetInstrInfo *TII = MF->getSubtarget().getInstrInfo();
   const MachineFrameInfo &MFI = MF->getFrameInfo();
 
+  // Execulde call instruction which may alter the memory but can not be handled
+  // by this function.
+  if (isCall() || Other.isCall())
+    return true;
+
   // If neither instruction stores to memory, they can't alias in any
   // meaningful way, even if they read from the same address.
   if (!mayStore() && !Other.mayStore())


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