[PATCH] D54954: [DAGCombiner] guard against an oversized shift crash

[Eli Friedman via Phabricator via llvm-commits]

efriedma added inline comments.


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Comment at: lib/CodeGen/SelectionDAG/DAGCombiner.cpp:6105
+      // shift has been simplified to undef.
+      unsigned ShiftAmt = ShiftC->getZExtValue();
+      if (ShiftAmt < BitWidth) {
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I think you need to use getLimitedValue() here?


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D54954/new/

https://reviews.llvm.org/D54954