[PATCH] D142345: [X86] Transform `(icmp eq/ne Abs(A), Pow2)` -> `(and/or (icmp eq/ne A,Pow2), (icmp eq/ne A,-Pow2))`

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:53394
+        if (auto *C = dyn_cast<ConstantSDNode>(RHS)) {
+          APInt CInt = C->getAPIntValue();
+          // We can better optimize this case in DAGCombiner::foldAndOrOfSETCC.
----------------
const APInt &CInt


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  https://reviews.llvm.org/D142345/new/

https://reviews.llvm.org/D142345