SystemZCallingConv.h [plain text]
#ifndef LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCALLINGCONV_H
#define LLVM_LIB_TARGET_SYSTEMZ_SYSTEMZCALLINGCONV_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/CallingConvLower.h"
namespace llvm {
namespace SystemZ {
const unsigned NumArgGPRs = 5;
extern const unsigned ArgGPRs[NumArgGPRs];
const unsigned NumArgFPRs = 4;
extern const unsigned ArgFPRs[NumArgFPRs];
}
class SystemZCCState : public CCState {
private:
SmallVector<bool, 4> ArgIsFixed;
SmallVector<bool, 4> ArgIsShortVector;
bool IsShortVectorType(EVT ArgVT) {
return ArgVT.isVector() && ArgVT.getStoreSize() <= 8;
}
public:
SystemZCCState(CallingConv::ID CC, bool isVarArg, MachineFunction &MF,
SmallVectorImpl<CCValAssign> &locs, LLVMContext &C)
: CCState(CC, isVarArg, MF, locs, C) {}
void AnalyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins,
CCAssignFn Fn) {
ArgIsFixed.clear();
for (unsigned i = 0; i < Ins.size(); ++i)
ArgIsFixed.push_back(true);
ArgIsShortVector.clear();
for (unsigned i = 0; i < Ins.size(); ++i)
ArgIsShortVector.push_back(IsShortVectorType(Ins[i].ArgVT));
CCState::AnalyzeFormalArguments(Ins, Fn);
}
void AnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs,
CCAssignFn Fn) {
ArgIsFixed.clear();
for (unsigned i = 0; i < Outs.size(); ++i)
ArgIsFixed.push_back(Outs[i].IsFixed);
ArgIsShortVector.clear();
for (unsigned i = 0; i < Outs.size(); ++i)
ArgIsShortVector.push_back(IsShortVectorType(Outs[i].ArgVT));
CCState::AnalyzeCallOperands(Outs, Fn);
}
void AnalyzeCallOperands(const SmallVectorImpl<MVT> &Outs,
SmallVectorImpl<ISD::ArgFlagsTy> &Flags,
CCAssignFn Fn) = delete;
bool IsFixed(unsigned ValNo) { return ArgIsFixed[ValNo]; }
bool IsShortVector(unsigned ValNo) { return ArgIsShortVector[ValNo]; }
};
}
#endif