LCOV - code coverage report
Current view: top level - lib/Target/ARM - ARMCallLowering.h (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 1 1 100.0 %
Date: 2017-09-14 15:23:50 Functions: 1 2 50.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===-- llvm/lib/Target/ARM/ARMCallLowering.h - Call lowering -------------===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===----------------------------------------------------------------------===//
       9             : ///
      10             : /// \file
      11             : /// This file describes how to lower LLVM calls to machine code calls.
      12             : ///
      13             : //===----------------------------------------------------------------------===//
      14             : 
      15             : #ifndef LLVM_LIB_TARGET_ARM_ARMCALLLOWERING
      16             : #define LLVM_LIB_TARGET_ARM_ARMCALLLOWERING
      17             : 
      18             : #include "llvm/CodeGen/CallingConvLower.h"
      19             : #include "llvm/CodeGen/GlobalISel/CallLowering.h"
      20             : #include "llvm/CodeGen/ValueTypes.h"
      21             : 
      22             : namespace llvm {
      23             : 
      24             : class ARMTargetLowering;
      25             : class MachineInstrBuilder;
      26             : 
      27        4445 : class ARMCallLowering : public CallLowering {
      28             : public:
      29             :   ARMCallLowering(const ARMTargetLowering &TLI);
      30             : 
      31             :   bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
      32             :                    unsigned VReg) const override;
      33             : 
      34             :   bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
      35             :                             ArrayRef<unsigned> VRegs) const override;
      36             : 
      37             :   bool lowerCall(MachineIRBuilder &MIRBuilder, CallingConv::ID CallConv,
      38             :                  const MachineOperand &Callee, const ArgInfo &OrigRet,
      39             :                  ArrayRef<ArgInfo> OrigArgs) const override;
      40             : 
      41             : private:
      42             :   bool lowerReturnVal(MachineIRBuilder &MIRBuilder, const Value *Val,
      43             :                       unsigned VReg, MachineInstrBuilder &Ret) const;
      44             : 
      45             :   typedef std::function<void(unsigned Reg, uint64_t Offset)> SplitArgTy;
      46             : 
      47             :   /// Split an argument into one or more arguments that the CC lowering can cope
      48             :   /// with (e.g. replace pointers with integers).
      49             :   void splitToValueTypes(const ArgInfo &OrigArg,
      50             :                          SmallVectorImpl<ArgInfo> &SplitArgs,
      51             :                          MachineFunction &MF,
      52             :                          const SplitArgTy &PerformArgSplit) const;
      53             : };
      54             : } // End of namespace llvm
      55             : #endif

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