[all-commits] [llvm/llvm-project] 4ea1ba: AMDGPU: Initial, crude support for indirect calls

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4ea1baf6a0e87f7f2f8721a7f4495b2159ad40b8
      https://github.com/llvm/llvm-project/commit/4ea1baf6a0e87f7f2f8721a7f4495b2159ad40b8
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-03-18 (Wed, 18 Mar 2020)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUArgumentUsageInfo.h
    M llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    A llvm/test/CodeGen/AMDGPU/indirect-call.ll

  Log Message:
  -----------
  AMDGPU: Initial, crude support for indirect calls

This isn't really usable, and requires using the
-amdgpu-fixed-function-abi flag to work.

Assumes a uniform call target, and will hit a verifier error if the
call target ends up in a VGPR. Also doesn't attempt to do anything
sensible for the reported register/stack usage.