[PATCH] D37092: [AVX512] Use 256-bit extract instructions for extracting bits [255:128] from a 512-bit register

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.

This enables the use of a smaller encoding by using a VEX instruction when possible.


https://reviews.llvm.org/D37092

Files:
  lib/Target/X86/X86InstrAVX512.td
  test/CodeGen/X86/avx512-cvt.ll
  test/CodeGen/X86/avx512-insert-extract.ll
  test/CodeGen/X86/avx512dq-intrinsics-upgrade.ll
  test/CodeGen/X86/avx512vl-vec-masked-cmp.ll
  test/CodeGen/X86/pr29112.ll
  test/CodeGen/X86/vec_int_to_fp.ll
  test/CodeGen/X86/vector-compare-results.ll
  test/CodeGen/X86/vector-idiv-sdiv-512.ll
  test/CodeGen/X86/vector-idiv-udiv-512.ll
  test/CodeGen/X86/vector-shuffle-512-v16.ll
  test/CodeGen/X86/vector-shuffle-512-v32.ll
  test/CodeGen/X86/vector-shuffle-512-v8.ll
  test/CodeGen/X86/vector-shuffle-v1.ll

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