[PATCH] D66489: [X86] Add a DAG combine to transform (i8 (bitcast (v8i1 (extract_subvector (v16i1 X), 0)))) -> (i8 (trunc (i16 (bitcast (v16i1 X))))) on KNL target

[Simon Pilgrim via Phabricator via llvm-commits]

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

LGTM



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Comment at: llvm/test/CodeGen/X86/win32-eh-available-externally.ll:1
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
 ; RUN: opt -S -x86-winehstate < %s | FileCheck %s --check-prefix=IR
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drop this


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https://reviews.llvm.org/D66489