[all-commits] [llvm/llvm-project] b8fc19: Revert "[GISel]: Fix incorrect IRTranslation while...

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b8fc192d42af56b17b7d940e6c226f4969e0d851
      https://github.com/llvm/llvm-project/commit/b8fc192d42af56b17b7d940e6c226f4969e0d851
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-03-30 (Mon, 30 Mar 2020)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp
    M llvm/lib/Target/AArch64/AArch64InstructionSelector.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-fallback.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator-switch.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/arm64-irtranslator.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/call-translator-tail-call.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/call-translator.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-exceptions.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/irtranslator-tbaa.ll
    M llvm/test/CodeGen/AArch64/GlobalISel/select-constant.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/translate-gep.ll

  Log Message:
  -----------
  Revert "[GISel]: Fix incorrect IRTranslation while translating null pointer types"

This reverts commit b3297ef05179e1fee616b97b1c65b58e4c7fef17.

This change is incorrect. The current semantic of null in the IR is a
pointer with the bitvalue 0. It is not a cast from an integer 0, so
this should preserve the pointer type.