[PATCH] D29097: [X86][SSE] Lower scalar_to_vector(0) to zero vector

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 85757.
RKSimon added a comment.

Added v4i32 handling as well - we were treating v4i32 scalar_to_vector as legal so were missing some cases


Repository:
  rL LLVM

https://reviews.llvm.org/D29097

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/clear_upper_vector_element_bits.ll
  test/CodeGen/X86/insertelement-zero.ll
  test/CodeGen/X86/vector-shuffle-variable-128.ll

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