[PATCH] D138696: [PowerPC] Exploit test data class instruction for isinf/iszero

[ChenZheng via Phabricator via llvm-commits]

shchenz added inline comments.


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Comment at: llvm/lib/Target/PowerPC/PPCISelLowering.cpp:14291
+      else if (APF.isNegZero())
+        Flag = fcNegZero;
+      if (Flag)
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I have same concern as previous patch: any reason for the nan and negdenormal/posdenormal are excluded here?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D138696/new/

https://reviews.llvm.org/D138696