[PATCH] D53356: [InstCombine] Teach the move free before null test opti how to deal with noop casts

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


================
Comment at: lib/Transforms/InstCombine/InstructionCombining.cpp:2363-2367
+  if (!match(TI,
+             m_Br(m_ICmp(Pred, m_Specific(Op), m_Zero()), TrueBB, FalseBB)) &&
+      !match(TI,
+             m_Br(m_ICmp(Pred, m_Specific(Op->stripPointerCasts()), m_Zero()),
+                  TrueBB, FalseBB)))
----------------
```
if (!match(TI, m_Br(m_ICmp(Pred,
                           m_CombineOr(m_Specific(Op),
                                       m_Specific(Op->stripPointerCasts())),
                           m_Zero()), TrueBB, FalseBB)))

```


Repository:
  rL LLVM

https://reviews.llvm.org/D53356