[PATCH] D46742: [X86] Use __builtin_convertvector to replace some of the avx512 truncate builtins.

[Craig Topper via Phabricator via cfe-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, GBuella, tkrupa.

As long as the destination type is a 256 or 128 bit vector we can use __builtin_convertvector to directly generate trunc IR instruction which will be handled natively by the backend.


Repository:
  rC Clang

https://reviews.llvm.org/D46742

Files:
  include/clang/Basic/BuiltinsX86.def
  lib/Headers/avx512bwintrin.h
  lib/Headers/avx512fintrin.h
  lib/Headers/avx512vlbwintrin.h
  lib/Headers/avx512vlintrin.h
  test/CodeGen/avx512bw-builtins.c
  test/CodeGen/avx512f-builtins.c
  test/CodeGen/avx512vl-builtins.c
  test/CodeGen/avx512vlbw-builtins.c

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