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[unittest] Add bogus register info. 

Reviewers: dstenb

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D64421

llvm-svn: 365516
This commit is contained in:
Michael Liao 2019-07-09 17:19:01 +00:00
parent c9c55cf89b
commit 329c032040
1 changed files with 52 additions and 0 deletions
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52
llvm/unittests/CodeGen/MachineInstrTest.cpp
View File

@ -44,6 +44,55 @@ public:
bool hasFP(const MachineFunction &MF) const override { return false; }
};
static TargetRegisterClass *const BogusRegisterClasses[] = {nullptr};
class BogusRegisterInfo : public TargetRegisterInfo {
public:
BogusRegisterInfo()
: TargetRegisterInfo(nullptr, BogusRegisterClasses, BogusRegisterClasses,
nullptr, nullptr, LaneBitmask(~0u), nullptr) {}
const MCPhysReg *
getCalleeSavedRegs(const MachineFunction *MF) const override {
return nullptr;
}
ArrayRef<const uint32_t *> getRegMasks() const override { return None; }
ArrayRef<const char *> getRegMaskNames() const override { return None; }
BitVector getReservedRegs(const MachineFunction &MF) const override {
return BitVector();
}
const RegClassWeight &
getRegClassWeight(const TargetRegisterClass *RC) const override {
static RegClassWeight Bogus{1, 16};
return Bogus;
}
unsigned getRegUnitWeight(unsigned RegUnit) const override { return 1; }
unsigned getNumRegPressureSets() const override { return 0; }
const char *getRegPressureSetName(unsigned Idx) const override {
return "bogus";
}
unsigned getRegPressureSetLimit(const MachineFunction &MF,
unsigned Idx) const override {
return 0;
}
const int *
getRegClassPressureSets(const TargetRegisterClass *RC) const override {
static const int Bogus[] = {0, -1};
return &Bogus[0];
}
const int *getRegUnitPressureSets(unsigned RegUnit) const override {
static const int Bogus[] = {0, -1};
return &Bogus[0];
}
Register getFrameRegister(const MachineFunction &MF) const override {
return 0;
}
void eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
unsigned FIOperandNum,
RegScavenger *RS = nullptr) const override {}
};
class BogusSubtarget : public TargetSubtargetInfo {
public:
BogusSubtarget(TargetMachine &TM)
@ -58,8 +107,11 @@ public:
const TargetInstrInfo *getInstrInfo() const override { return &TII; }
const TargetRegisterInfo *getRegisterInfo() const override { return &TRI; }
private:
BogusFrameLowering FL;
BogusRegisterInfo TRI;
BogusTargetLowering TL;
TargetInstrInfo TII;
};