[PATCH] D117406: [DAGCombiner] Adjust some checks in DAGCombiner::reduceLoadWidth

[Sanjay Patel via Phabricator via llvm-commits]

spatel added inline comments.


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Comment at: llvm/test/CodeGen/PowerPC/pr39478.ll:6
 
+; FIXME: It should be possible to fold the addi+lwbrx into a single lbz, given
+; that only 8-bits are demanded. Maybe that can be detected already when
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This is a generic missed fold. I added more tests and a proposed fix:
D117508


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D117406/new/

https://reviews.llvm.org/D117406