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Delete some old code used for testing that is not needed anymore.

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This is part of the mips16 epilogue/prologue cleanup.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196824 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reed Kotler
2013-12-09 21:19:51 +00:00
parent 5201d61654
commit 9670b33cbd
1 changed files with 33 additions and 87 deletions
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120
lib/Target/Mips/Mips16InstrInfo.cpp
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@@ -28,13 +28,6 @@
using namespace llvm; using namespace llvm;
static cl::opt<bool> NeverUseSaveRestore(
"mips16-never-use-save-restore",
cl::init(false),
cl::desc("For testing ability to adjust stack pointer "
"without save/restore instruction"),
cl::Hidden);
Mips16InstrInfo::Mips16InstrInfo(MipsTargetMachine &tm) Mips16InstrInfo::Mips16InstrInfo(MipsTargetMachine &tm)
: MipsInstrInfo(tm, Mips::Bimm16), : MipsInstrInfo(tm, Mips::Bimm16),
@@ -180,45 +173,22 @@ void Mips16InstrInfo::makeFrame(unsigned SP, int64_t FrameSize,
MachineBasicBlock &MBB, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const { MachineBasicBlock::iterator I) const {
DebugLoc DL = I != MBB.end() ? I->getDebugLoc() : DebugLoc(); DebugLoc DL = I != MBB.end() ? I->getDebugLoc() : DebugLoc();
if (!NeverUseSaveRestore) { if (isUInt<11>(FrameSize))
if (isUInt<11>(FrameSize)) //BuildMI(MBB, I, DL, get(Mips::SaveRaF16)).addImm(FrameSize);
//BuildMI(MBB, I, DL, get(Mips::SaveRaF16)).addImm(FrameSize); BuildMI(MBB, I, DL, get(Mips::SaveX16)).addReg(Mips::RA).
BuildMI(MBB, I, DL, get(Mips::SaveX16)).addReg(Mips::RA). addReg(Mips::S0).
addReg(Mips::S0). addReg(Mips::S1).addReg(Mips::S2).addImm(FrameSize);
addReg(Mips::S1).addReg(Mips::S2).addImm(FrameSize);
else {
int Base = 2040; // should create template function like isUInt that
// returns largest possible n bit unsigned integer
int64_t Remainder = FrameSize - Base;
BuildMI(MBB, I, DL, get(Mips::SaveX16)).addReg(Mips::RA).
addReg(Mips::S0).
addReg(Mips::S1).addReg(Mips::S2).addImm(Base);
if (isInt<16>(-Remainder))
BuildAddiuSpImm(MBB, I, -Remainder);
else
adjustStackPtrBig(SP, -Remainder, MBB, I, Mips::V0, Mips::V1);
}
}
else { else {
// int Base = 2040; // should create template function like isUInt that
// sw ra, -4[sp] // returns largest possible n bit unsigned integer
// sw s1, -8[sp] int64_t Remainder = FrameSize - Base;
// sw s0, -12[sp] BuildMI(MBB, I, DL, get(Mips::SaveX16)).addReg(Mips::RA).
addReg(Mips::S0).
MachineInstrBuilder MIB1 = BuildMI(MBB, I, DL, get(Mips::SwRxSpImmX16), addReg(Mips::S1).addReg(Mips::S2).addImm(Base);
Mips::RA); if (isInt<16>(-Remainder))
MIB1.addReg(Mips::SP); BuildAddiuSpImm(MBB, I, -Remainder);
MIB1.addImm(-4); else
MachineInstrBuilder MIB2 = BuildMI(MBB, I, DL, get(Mips::SwRxSpImmX16), adjustStackPtrBig(SP, -Remainder, MBB, I, Mips::V0, Mips::V1);
Mips::S1);
MIB2.addReg(Mips::SP);
MIB2.addImm(-8);
MachineInstrBuilder MIB3 = BuildMI(MBB, I, DL, get(Mips::SwRxSpImmX16),
Mips::S0);
MIB3.addReg(Mips::SP);
MIB3.addImm(-12);
adjustStackPtrBig(SP, -FrameSize, MBB, I, Mips::V0, Mips::V1);
} }
} }
@@ -227,50 +197,26 @@ void Mips16InstrInfo::restoreFrame(unsigned SP, int64_t FrameSize,
MachineBasicBlock &MBB, MachineBasicBlock &MBB,
MachineBasicBlock::iterator I) const { MachineBasicBlock::iterator I) const {
DebugLoc DL = I != MBB.end() ? I->getDebugLoc() : DebugLoc(); DebugLoc DL = I != MBB.end() ? I->getDebugLoc() : DebugLoc();
if (!NeverUseSaveRestore) { if (isUInt<11>(FrameSize))
if (isUInt<11>(FrameSize)) BuildMI(MBB, I, DL, get(Mips::RestoreX16)).
BuildMI(MBB, I, DL, get(Mips::RestoreX16)). addReg(Mips::RA, RegState::Define).
addReg(Mips::RA, RegState::Define). addReg(Mips::S0, RegState::Define).
addReg(Mips::S0, RegState::Define). addReg(Mips::S1, RegState::Define).
addReg(Mips::S1, RegState::Define). addReg(Mips::S2, RegState::Define).addImm(FrameSize);
addReg(Mips::S2, RegState::Define).addImm(FrameSize);
else {
int Base = 2040; // should create template function like isUInt that
// returns largest possible n bit unsigned integer
int64_t Remainder = FrameSize - Base;
if (isInt<16>(Remainder))
BuildAddiuSpImm(MBB, I, Remainder);
else
adjustStackPtrBig(SP, Remainder, MBB, I, Mips::A0, Mips::A1);
BuildMI(MBB, I, DL, get(Mips::RestoreX16)).
addReg(Mips::RA, RegState::Define).
addReg(Mips::S0, RegState::Define).
addReg(Mips::S1, RegState::Define).
addReg(Mips::S2, RegState::Define).addImm(Base);
}
}
else { else {
adjustStackPtrBig(SP, FrameSize, MBB, I, Mips::A0, Mips::A1); int Base = 2040; // should create template function like isUInt that
// lw ra, -4[sp] // returns largest possible n bit unsigned integer
// lw s1, -8[sp] int64_t Remainder = FrameSize - Base;
// lw s0, -12[sp] if (isInt<16>(Remainder))
MachineInstrBuilder MIB1 = BuildMI(MBB, I, DL, get(Mips::LwRxSpImmX16), BuildAddiuSpImm(MBB, I, Remainder);
Mips::A0); else
MIB1.addReg(Mips::SP); adjustStackPtrBig(SP, Remainder, MBB, I, Mips::A0, Mips::A1);
MIB1.addImm(-4); BuildMI(MBB, I, DL, get(Mips::RestoreX16)).
MachineInstrBuilder MIB0 = BuildMI(MBB, I, DL, get(Mips::Move32R16), addReg(Mips::RA, RegState::Define).
Mips::RA); addReg(Mips::S0, RegState::Define).
MIB0.addReg(Mips::A0); addReg(Mips::S1, RegState::Define).
MachineInstrBuilder MIB2 = BuildMI(MBB, I, DL, get(Mips::LwRxSpImmX16), addReg(Mips::S2, RegState::Define).addImm(Base);
Mips::S1);
MIB2.addReg(Mips::SP);
MIB2.addImm(-8);
MachineInstrBuilder MIB3 = BuildMI(MBB, I, DL, get(Mips::LwRxSpImmX16),
Mips::S0);
MIB3.addReg(Mips::SP);
MIB3.addImm(-12);
} }
} }
// Adjust SP by Amount bytes where bytes can be up to 32bit number. // Adjust SP by Amount bytes where bytes can be up to 32bit number.