[PATCH] D14897: Fix several issues related to X86's psadbw instruction.

[Cong Hou via llvm-commits]

congh created this revision.
congh added reviewers: RKSimon, ashahid, hfinkel, davidxl.
congh added a subscriber: llvm-commits.

This patch fixes the following issues:

1. Fix the return type of X86psadbw: it should not be the same type of inputs. For vNi8 inputs the output should be vMi64, where M = N/8.
2. Fix the return type of int_x86_avx512_psad_bw_512 accordingly.
3. Fix the definiton of PSADBW, VPSADBW, and VPSADBWY accordingly.
4. Adjust the return type when building a DAG node of X86ISD::PSADBW type.
5. Update related tests.

http://reviews.llvm.org/D14897

Files:
  include/llvm/IR/IntrinsicsX86.td
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86InstrAVX512.td
  lib/Target/X86/X86InstrFragmentsSIMD.td
  lib/Target/X86/X86InstrSSE.td
  lib/Target/X86/X86IntrinsicsInfo.h
  test/CodeGen/X86/avx512bw-intrinsics.ll
  test/CodeGen/X86/vector-popcnt-128.ll
  test/CodeGen/X86/vector-popcnt-256.ll
  test/CodeGen/X86/vector-tzcnt-128.ll
  test/CodeGen/X86/vector-tzcnt-256.ll

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