[PATCH] D133449: [InstCombine] Baseline tests for folding x + (x | -x) to x & (x - 1)

[Sanjay Patel via Phabricator via llvm-commits]

spatel added inline comments.


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Comment at: llvm/test/Transforms/InstCombine/add_or_sub.ll:88
+  %x = mul <4 x i16> %p, %p ; thwart complexity-based canonicalization
+  %sub = sub <4 x i16> <i16 -1, i16 undef, i16 undef, i16 -1>, %x
+  %or = or <4 x i16> %sub, %x
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Replace undef with poison. We're moving away from undef as a value in IR, so we don't want to add new tests with undef.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D133449/new/

https://reviews.llvm.org/D133449