[PATCH] D38482: TargetMachine: Use LLVMTargetMachine in CodeGen

[Matthias Braun via Phabricator via llvm-commits]

MatzeB created this revision.
Herald added subscribers: JDevlieghere, fedor.sergeev, kbarton, javed.absar, nhaehnle, nemanjai, sdardis, mcrosier, mehdi_amini, jyknight, arsenm, jholewinski.

While preparing a talk about CodeGen I looked at the TargetMachine/LLVMTargetMachine classes; reading the doxygen comments it seems that the intention is that TargetMachine is a general interface to be used by all targets, while LLVMTargetMachine is a specialization for targets using code from `lib/CodeGen`.

In practice some methods that were only useful for `lib/CodeGen` based targets sneaked into `TargetMachine` anyway. The problem as it turns out is that most of the time we only had a reference to `TargetMachine` instead of `LLVMTargetMachine` at hand.

This commit:

- Changes most reference in CodeGen from `TargetMachine` to `LLVMTargetMachine`
- Moves some methods from `TargetMachine` to `LLVMTargetMachine`: `getSubtarget`, `targetSchedulesPostRAScheduling`, `usesPhysRegsForPEI`, `useIPRA`
- Add two new methods into `TargetMachine` for the two cases where non-CodeGen code was directly accessing CodeGen interfaces: `useAA()`, `getTargetLowering()`


Repository:
  rL LLVM

https://reviews.llvm.org/D38482

Files:
  include/llvm/CodeGen/Analysis.h
  include/llvm/CodeGen/AsmPrinter.h
  include/llvm/CodeGen/BasicTTIImpl.h
  include/llvm/CodeGen/FastISel.h
  include/llvm/CodeGen/MachineFunction.h
  include/llvm/CodeGen/MachineModuleInfo.h
  include/llvm/CodeGen/RegisterUsageInfo.h
  include/llvm/CodeGen/SelectionDAG.h
  include/llvm/CodeGen/SelectionDAGISel.h
  include/llvm/CodeGen/StackProtector.h
  include/llvm/Support/TargetRegistry.h
  include/llvm/Target/TargetLowering.h
  include/llvm/Target/TargetMachine.h
  lib/CodeGen/Analysis.cpp
  lib/CodeGen/AsmPrinter/AsmPrinter.cpp
  lib/CodeGen/AtomicExpandPass.cpp
  lib/CodeGen/BasicTargetTransformInfo.cpp
  lib/CodeGen/CodeGenPrepare.cpp
  lib/CodeGen/DwarfEHPrepare.cpp
  lib/CodeGen/InterleavedAccessPass.cpp
  lib/CodeGen/LLVMTargetMachine.cpp
  lib/CodeGen/MachineFunction.cpp
  lib/CodeGen/MachineModuleInfo.cpp
  lib/CodeGen/PrologEpilogInserter.cpp
  lib/CodeGen/RegUsageInfoCollector.cpp
  lib/CodeGen/SafeStack.cpp
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
  lib/CodeGen/SelectionDAG/TargetLowering.cpp
  lib/CodeGen/StackProtector.cpp
  lib/CodeGen/TargetLoweringBase.cpp
  lib/LTO/UpdateCompilerUsed.cpp
  lib/Target/AArch64/AArch64AsmPrinter.cpp
  lib/Target/AArch64/AArch64ISelLowering.cpp
  lib/Target/AArch64/AArch64ISelLowering.h
  lib/Target/AArch64/AArch64Subtarget.cpp
  lib/Target/AArch64/AArch64Subtarget.h
  lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  lib/Target/AMDGPU/AMDGPU.h
  lib/Target/AMDGPU/AMDGPUAnnotateKernelFeatures.cpp
  lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
  lib/Target/AMDGPU/AMDGPUAsmPrinter.h
  lib/Target/AMDGPU/AMDGPUCodeGenPrepare.cpp
  lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/AMDGPUISelLowering.h
  lib/Target/AMDGPU/AMDGPULowerIntrinsics.cpp
  lib/Target/AMDGPU/AMDGPUPromoteAlloca.cpp
  lib/Target/AMDGPU/AMDGPUSubtarget.cpp
  lib/Target/AMDGPU/AMDGPUSubtarget.h
  lib/Target/AMDGPU/AMDGPUTargetTransformInfo.cpp
  lib/Target/AMDGPU/R600ISelLowering.cpp
  lib/Target/AMDGPU/R600ISelLowering.h
  lib/Target/AMDGPU/SIISelLowering.cpp
  lib/Target/AMDGPU/SIISelLowering.h
  lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
  lib/Target/ARM/ARMAsmPrinter.cpp
  lib/Target/ARM/ARMAsmPrinter.h
  lib/Target/ARM/ARMISelLowering.cpp
  lib/Target/ARM/ARMISelLowering.h
  lib/Target/ARM/ARMTargetObjectFile.cpp
  lib/Target/ARM/ARMTargetTransformInfo.cpp
  lib/Target/BPF/BPFAsmPrinter.cpp
  lib/Target/BPF/BPFISelLowering.cpp
  lib/Target/BPF/BPFISelLowering.h
  lib/Target/BPF/BPFSubtarget.cpp
  lib/Target/BPF/BPFSubtarget.h
  lib/Target/Hexagon/HexagonAsmPrinter.cpp
  lib/Target/Hexagon/HexagonAsmPrinter.h
  lib/Target/Hexagon/HexagonISelLowering.cpp
  lib/Target/Hexagon/HexagonISelLowering.h
  lib/Target/Hexagon/HexagonSubtarget.cpp
  lib/Target/Hexagon/HexagonSubtarget.h
  lib/Target/Lanai/LanaiAsmPrinter.cpp
  lib/Target/Lanai/LanaiISelLowering.cpp
  lib/Target/Lanai/LanaiISelLowering.h
  lib/Target/Lanai/LanaiSubtarget.cpp
  lib/Target/Lanai/LanaiSubtarget.h
  lib/Target/MSP430/MSP430AsmPrinter.cpp
  lib/Target/MSP430/MSP430ISelLowering.cpp
  lib/Target/MSP430/MSP430ISelLowering.h
  lib/Target/MSP430/MSP430Subtarget.cpp
  lib/Target/MSP430/MSP430Subtarget.h
  lib/Target/Mips/MipsAsmPrinter.h
  lib/Target/NVPTX/NVPTXAsmPrinter.cpp
  lib/Target/NVPTX/NVPTXAsmPrinter.h
  lib/Target/PowerPC/PPCAsmPrinter.cpp
  lib/Target/Sparc/SparcAsmPrinter.cpp
  lib/Target/Sparc/SparcISelLowering.cpp
  lib/Target/Sparc/SparcISelLowering.h
  lib/Target/Sparc/SparcSubtarget.cpp
  lib/Target/Sparc/SparcSubtarget.h
  lib/Target/SystemZ/SystemZAsmPrinter.h
  lib/Target/SystemZ/SystemZISelLowering.cpp
  lib/Target/SystemZ/SystemZISelLowering.h
  lib/Target/SystemZ/SystemZSubtarget.cpp
  lib/Target/SystemZ/SystemZSubtarget.h
  lib/Target/X86/X86AsmPrinter.h
  lib/Target/X86/X86Subtarget.h
  lib/Target/X86/X86TargetTransformInfo.cpp
  lib/Target/XCore/XCoreAsmPrinter.cpp
  lib/Target/XCore/XCoreISelLowering.cpp
  lib/Target/XCore/XCoreISelLowering.h
  lib/Target/XCore/XCoreSubtarget.cpp
  lib/Target/XCore/XCoreSubtarget.h
  lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp
  unittests/MI/LiveIntervalTest.cpp
  unittests/Target/AArch64/InstSizes.cpp

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