[PATCH] D44402: [DAGCombiner] Fold (zext (and/or/xor (shl/shr (load x), cst), cst))

[Guozhi Wei via Phabricator via llvm-commits]

Carrot updated this revision to Diff 139823.
Carrot marked an inline comment as done.
Carrot added a comment.

Since both original ShiftVT and shift value are used, we can simply use the original shift constant node.


https://reviews.llvm.org/D44402

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/AArch64/zext-logic-shift-load.ll
  test/CodeGen/ARM/zext-logic-shift-load.ll
  test/CodeGen/X86/zext-logicop-shift-load.ll

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