[PATCH] D68446: [X86] Remove isel patterns for mask vpcmpgt/vpcmpeq. Switch vpcmp to these based on the immediate in MCInstLower

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.
craig.topper added reviewers: RKSimon, spatel.
Herald added a subscriber: hiraditya.
Herald added a project: LLVM.

The immediate form of VPCMP can represent these completely. The
vpcmpgt/eq are just shorter encodings.

This patch removes the isel patterns and just swaps the opcodes
and removes the immediate in MCInstLower. This matches where we do
some other encodings tricks.

Removes over 10K bytes from the isel table.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D68446

Files:
  llvm/lib/Target/X86/X86InstrAVX512.td
  llvm/lib/Target/X86/X86MCInstLower.cpp
  llvm/test/CodeGen/X86/avx512-mask-op.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D68446.223147.patch
Type: text/x-patch
Size: 26614 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20191004/fc590262/attachment.bin>