[PATCH] D113202: [DAG] FoldConstantArithmetic - fold bitlogic(bitcast(x),bitcast(y)) -> bitcast(bitlogic(x,y))

[Roman Lebedev via Phabricator via llvm-commits]

lebedev.ri added inline comments.


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Comment at: llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:5298
+  // TODO: Can we generalize this and fold any bitcasted constant data?
+  if (ISD::isBitwiseLogicOp(Opcode) && N1->getOpcode() == ISD::BITCAST &&
+      N2->getOpcode() == ISD::BITCAST) {
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Can we have cases where only one of operands is a bitcast / both are bitcasts but only one should be peeked?


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  https://reviews.llvm.org/D113202/new/

https://reviews.llvm.org/D113202