[PATCH] D103192: [X86] Fold (shift undef, X)->0 for vector shifts by immediate.

[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/vec_shift5.ll:193
+  %res = call <4 x i32> @llvm.x86.sse2.pslli.d(<4 x i32> undef, i32 7)
+  ret <4 x i32> %res
+}
----------------
precommit - and maybe include a shift-by-one instruction ?


Repository:
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CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D103192/new/

https://reviews.llvm.org/D103192