SuccessChanges

Changes from Git (git http://labmaster3.local/git/llvm-project.git)

Summary

  1. [X86][SSE] Add PACKSS/PACKUS style patterns tests (details)
  2. [ARM] Remove hasSideEffects from FP converts (details)
Commit 011d73202c06ef50f1e30eacebdc965933659d42 by llvm-dev
[X86][SSE] Add PACKSS/PACKUS style patterns tests

Similar to the proposed generic code generated by D61129 - there's still some shuffle combining improvements to go before that patch is ready.
The file was addedllvm/test/CodeGen/X86/vector-pack-256.ll
The file was addedllvm/test/CodeGen/X86/vector-pack-128.ll
The file was addedllvm/test/CodeGen/X86/vector-pack-512.ll
Commit 74ca67c109c8d1abafe1d2bd4edfb85f03b45faa by david.green
[ARM] Remove hasSideEffects from FP converts

Whether an instruction is deemed to have side effects in determined by
whether it has a tblgen pattern that emits a single instruction.
Because of the way a lot of the the vcvt instructions are specified
either in dagtodag code or with patterns that emit multiple
instructions, they don't get marked as not having side effects.

This just marks them as not having side effects manually. It can help
especially with instruction scheduling, to not create artificial
barriers, but one of these tests also managed to produce fewer
instructions.

Differential Revision: https://reviews.llvm.org/D81639
The file was modifiedllvm/test/CodeGen/ARM/fp16-bitcast.ll
The file was modifiedllvm/test/CodeGen/ARM/fp16-fullfp16.ll
The file was modifiedllvm/test/CodeGen/ARM/no-fpscr-liveness.ll
The file was modifiedllvm/test/CodeGen/Thumb2/LowOverheadLoops/mve-float-loops.ll
The file was modifiedllvm/lib/Target/ARM/ARMInstrVFP.td
The file was modifiedllvm/test/CodeGen/ARM/cmov_fp16.ll
The file was modifiedllvm/test/CodeGen/Thumb2/mve-vcvt16.ll
The file was modifiedllvm/test/CodeGen/Thumb2/mve-masked-store.ll
The file was modifiedllvm/test/CodeGen/ARM/fp16-instructions.ll
The file was modifiedllvm/test/CodeGen/ARM/vcvt.ll
The file was modifiedllvm/test/CodeGen/Thumb2/mve-vcvt.ll
The file was modifiedllvm/test/CodeGen/ARM/fp16-args.ll
The file was modifiedllvm/unittests/Target/ARM/MachineInstrTest.cpp