[PATCH] D58705: [X86] Don't peek through bitcasts before checking ISD::isBuildVectorOfConstantSDNodes in combineTruncatedArithmetic

[Sanjay Patel via Phabricator via llvm-commits]

spatel accepted this revision.
spatel added a comment.
This revision is now accepted and ready to land.

LGTM



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Comment at: lib/Target/X86/X86ISelLowering.cpp:38719
 
     // See if this is a single use constant which can be constant folded.
+    return ISD::isBuildVectorOfConstantSDNodes(Op.getNode());
----------------
Please add to this comment to make it explicit that we're not peeking through bitcast to avoid fighting with another transform.


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  https://reviews.llvm.org/D58705/new/

https://reviews.llvm.org/D58705