[all-commits] [llvm/llvm-project] 77ce2e: [AMDGPU] Add Relocation Constant Support

[Jakub Kuderski via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 77ce2e21a87768370b97a027e5053b73e8f438a7
      https://github.com/llvm/llvm-project/commit/77ce2e21a87768370b97a027e5053b73e8f438a7
  Author: Jakub Kuderski <kubak at google.com>
  Date:   2020-03-30 (Mon, 30 Mar 2020)

  Changed paths:
    M llvm/include/llvm/IR/IntrinsicsAMDGPU.td
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    M llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    A llvm/test/CodeGen/AMDGPU/amdgcn-load-offset-from-reg.ll
    A llvm/test/CodeGen/AMDGPU/amdgpu-reloc-const.ll

  Log Message:
  -----------
  [AMDGPU] Add Relocation Constant Support

Summary:
This change adds amdgcn.reloc.constant intrinsic to the amdgpu backend, which will compile into a relocation entry in the resulting elf.

The intrinsics takes a MetadataNode (String) as its only argument, which specifies the symbol name of the relocation entry.

`SelectionDAGBuilder::getValueImpl` is changed to allow metadata operands passed through to ISel.

Author: csyonghe <yonghe at google.com>

Reviewers: tpr, nhaehnle

Reviewed By: nhaehnle

Subscribers: arsenm, kzhuravl, jvesely, wdng, yaxunl, dstuttard, t-tye, hiraditya, kerbowa, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76440