[all-commits] [llvm/llvm-project] fe0006: TargetLowering.h - remove unnecessary TargetMachin...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: fe0006c882f1c134b2abe8552d48c876cde9343d
      https://github.com/llvm/llvm-project/commit/fe0006c882f1c134b2abe8552d48c876cde9343d
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-05-23 (Sat, 23 May 2020)

  Changed paths:
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/Analysis.cpp
    M llvm/lib/CodeGen/AsmPrinter/WinException.cpp
    M llvm/lib/CodeGen/ExpandMemCmp.cpp
    M llvm/lib/CodeGen/GlobalISel/CallLowering.cpp
    M llvm/lib/CodeGen/GlobalISel/InstructionSelect.cpp
    M llvm/lib/CodeGen/LiveDebugValues.cpp
    M llvm/lib/CodeGen/LowerEmuTLS.cpp
    M llvm/lib/CodeGen/SelectionDAG/InstrEmitter.cpp
    M llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
    M llvm/lib/CodeGen/SwitchLoweringUtils.cpp
    M llvm/lib/CodeGen/TypePromotion.cpp
    M llvm/lib/LTO/UpdateCompilerUsed.cpp
    M llvm/lib/Target/ARM/ARMSubtarget.h
    M llvm/lib/Target/Sparc/SparcTargetObjectFile.cpp
    M llvm/lib/Target/SystemZ/SystemZFrameLowering.cpp
    M llvm/lib/Target/SystemZ/SystemZSubtarget.cpp
    M llvm/lib/Target/SystemZ/SystemZTDC.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyCFGStackify.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyLateEHPrepare.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyMachineFunctionInfo.cpp
    M llvm/lib/Target/X86/X86Subtarget.h
    M llvm/lib/Target/X86/X86TargetObjectFile.cpp

  Log Message:
  -----------
  TargetLowering.h - remove unnecessary TargetMachine.h include. NFC

Replace with forward declaration and move dependency down to source files that actually need it.

Both TargetLowering.h and TargetMachine.h are 2 of the most expensive headers (top 10) in the ClangBuildAnalyzer report when building llc.