[all-commits] [llvm/llvm-project] ae36c0: [AMDGPU] Set DS alignment requirements to be more ...

Fri Sep 18 06:28:36 PDT 2020

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: ae36c02ad0cb0a618c8715404dcfab4cf49c6612
      https://github.com/llvm/llvm-project/commit/ae36c02ad0cb0a618c8715404dcfab4cf49c6612
  Author: Mirko Brkusanin <Mirko.Brkusanin at amd.com>
  Date:   2020-09-18 (Fri, 18 Sep 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/lds-misaligned-bug.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/load-local.128.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/load-local.96.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/store-local.128.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/store-local.96.ll
    M llvm/test/CodeGen/AMDGPU/ds_read2.ll
    M llvm/test/CodeGen/AMDGPU/ds_write2.ll
    M llvm/test/CodeGen/AMDGPU/lds-misaligned-bug.ll
    M llvm/test/CodeGen/AMDGPU/load-local.128.ll
    M llvm/test/CodeGen/AMDGPU/load-local.96.ll
    M llvm/test/CodeGen/AMDGPU/store-local.128.ll
    M llvm/test/CodeGen/AMDGPU/store-local.96.ll
    M llvm/test/CodeGen/AMDGPU/store-local.ll

  Log Message:
  -----------
  [AMDGPU] Set DS alignment requirements to be more strict

Alignment requirements for ds_read/write_b96/b128 for gfx9 and onward are
now the same as for other GCN subtargets. This way we can avoid any
unintentional use of these instructions on systems that do not support dword
alignment and instead require natural alignment.
This also makes 'SH_MEM_CONFIG.alignment_mode == STRICT' the default.

Differential Revision: https://reviews.llvm.org/D87821