[all-commits] [llvm/llvm-project] ed46e8: [MachineInstr] exclude call instruction in mayAlias

[Chen Zheng via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ed46e84c7aaffd847656ac559acb06089096ec33
      https://github.com/llvm/llvm-project/commit/ed46e84c7aaffd847656ac559acb06089096ec33
  Author: Chen Zheng <czhengsz at cn.ibm.com>
  Date:   2020-10-07 (Wed, 07 Oct 2020)

  Changed paths:
    M llvm/lib/CodeGen/MachineInstr.cpp

  Log Message:
  -----------
  [MachineInstr] exclude call instruction in mayAlias

we now get noAlias result for a call instruction and other
load/store/call instructions if we query mayAlias.
This is not right as call instruction is not with mayloadorstore,
but it may alter the memory.

This patch fixes this wrong alias query.

Differential Revision: https://reviews.llvm.org/D87490