[all-commits] [llvm/llvm-project] 65cd2c: Revert "[CodeGen] Add support for multiple memory ...

[Jean-Michel Gorius via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 65cd2c7a8015577fea15c861f41d2e4b5768961f
      https://github.com/llvm/llvm-project/commit/65cd2c7a8015577fea15c861f41d2e4b5768961f
  Author: Jean-Michel Gorius <jean-michel.gorius at ens-rennes.fr>
  Date:   2020-05-22 (Fri, 22 May 2020)

  Changed paths:
    M llvm/lib/CodeGen/MachineInstr.cpp
    M llvm/lib/CodeGen/ScheduleDAGInstrs.cpp
    M llvm/test/CodeGen/AArch64/merge-store-dependency.ll
    M llvm/test/CodeGen/ARM/big-endian-neon-fp16-bitconv.ll
    M llvm/test/CodeGen/ARM/cortex-a57-misched-vldm-wrback.ll
    M llvm/test/CodeGen/ARM/cortex-a57-misched-vstm-wrback.ll
    M llvm/test/CodeGen/ARM/cortex-a57-misched-vstm.ll
    M llvm/test/CodeGen/Thumb2/mve-float32regloops.ll
    M llvm/test/CodeGen/Thumb2/mve-phireg.ll
    M llvm/test/CodeGen/Thumb2/mve-vst3.ll
    M llvm/test/CodeGen/Thumb2/umulo-128-legalisation-lowering.ll
    R llvm/test/CodeGen/X86/instr-sched-multiple-memops.mir
    M llvm/test/CodeGen/X86/store_op_load_fold2.ll

  Log Message:
  -----------
  Revert "[CodeGen] Add support for multiple memory operands in MachineInstr::mayAlias"

This temporarily reverts commit 7019cea26dfef5882c96f278c32d0f9c49a5e516.

It seems that, for some targets, there are instructions with a lot of memory operands (probably more than would be expected). This causes a lot of buildbots to timeout and notify failed builds. While investigations are ongoing to find out why this happens, revert the changes.