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authorDimitry Andric <dim@FreeBSD.org>2020-01-22 20:31:01 +0000
committerDimitry Andric <dim@FreeBSD.org>2020-01-22 20:31:01 +0000
commit8bcb0991864975618c09697b1aca10683346d9f0 (patch)
tree0afab28faa50e5f27698f8dd6c1921fff8d25e39 /contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp
parentb14637d118e110006a149a79b649c5695e7f419a (diff)
parent1d5ae1026e831016fc29fd927877c86af904481f (diff)
downloadsrc-8bcb0991864975618c09697b1aca10683346d9f0.tar.gz
src-8bcb0991864975618c09697b1aca10683346d9f0.zip
Notes
Diffstat (limited to 'contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp')
-rw-r--r--contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp61
1 files changed, 30 insertions, 31 deletions
diff --git a/contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp b/contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp
index 1107e609c258..6a898ff6ef88 100644
--- a/contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp
+++ b/contrib/llvm-project/llvm/lib/CodeGen/MachineLICM.cpp
@@ -153,7 +153,6 @@ namespace {
AU.addRequired<MachineDominatorTree>();
AU.addRequired<AAResultsWrapperPass>();
AU.addPreserved<MachineLoopInfo>();
- AU.addPreserved<MachineDominatorTree>();
MachineFunctionPass::getAnalysisUsage(AU);
}
@@ -424,10 +423,10 @@ void MachineLICMBase::ProcessMI(MachineInstr *MI,
if (!MO.isReg())
continue;
- unsigned Reg = MO.getReg();
+ Register Reg = MO.getReg();
if (!Reg)
continue;
- assert(TargetRegisterInfo::isPhysicalRegister(Reg) &&
+ assert(Register::isPhysicalRegister(Reg) &&
"Not expecting virtual register!");
if (!MO.isDef()) {
@@ -526,7 +525,7 @@ void MachineLICMBase::HoistRegionPostRA() {
for (const MachineOperand &MO : TI->operands()) {
if (!MO.isReg())
continue;
- unsigned Reg = MO.getReg();
+ Register Reg = MO.getReg();
if (!Reg)
continue;
for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI)
@@ -554,7 +553,7 @@ void MachineLICMBase::HoistRegionPostRA() {
for (const MachineOperand &MO : MI->operands()) {
if (!MO.isReg() || MO.isDef() || !MO.getReg())
continue;
- unsigned Reg = MO.getReg();
+ Register Reg = MO.getReg();
if (PhysRegDefs.test(Reg) ||
PhysRegClobbers.test(Reg)) {
// If it's using a non-loop-invariant register, then it's obviously
@@ -852,8 +851,8 @@ MachineLICMBase::calcRegisterCost(const MachineInstr *MI, bool ConsiderSeen,
const MachineOperand &MO = MI->getOperand(i);
if (!MO.isReg() || MO.isImplicit())
continue;
- unsigned Reg = MO.getReg();
- if (!TargetRegisterInfo::isVirtualRegister(Reg))
+ Register Reg = MO.getReg();
+ if (!Register::isVirtualRegister(Reg))
continue;
// FIXME: It seems bad to use RegSeen only for some of these calculations.
@@ -922,12 +921,12 @@ static bool isInvariantStore(const MachineInstr &MI,
// Check that all register operands are caller-preserved physical registers.
for (const MachineOperand &MO : MI.operands()) {
if (MO.isReg()) {
- unsigned Reg = MO.getReg();
+ Register Reg = MO.getReg();
// If operand is a virtual register, check if it comes from a copy of a
// physical register.
- if (TargetRegisterInfo::isVirtualRegister(Reg))
+ if (Register::isVirtualRegister(Reg))
Reg = TRI->lookThruCopyLike(MO.getReg(), MRI);
- if (TargetRegisterInfo::isVirtualRegister(Reg))
+ if (Register::isVirtualRegister(Reg))
return false;
if (!TRI->isCallerPreservedPhysReg(Reg, *MI.getMF()))
return false;
@@ -955,17 +954,17 @@ static bool isCopyFeedingInvariantStore(const MachineInstr &MI,
const MachineFunction *MF = MI.getMF();
// Check that we are copying a constant physical register.
- unsigned CopySrcReg = MI.getOperand(1).getReg();
- if (TargetRegisterInfo::isVirtualRegister(CopySrcReg))
+ Register CopySrcReg = MI.getOperand(1).getReg();
+ if (Register::isVirtualRegister(CopySrcReg))
return false;
if (!TRI->isCallerPreservedPhysReg(CopySrcReg, *MF))
return false;
- unsigned CopyDstReg = MI.getOperand(0).getReg();
+ Register CopyDstReg = MI.getOperand(0).getReg();
// Check if any of the uses of the copy are invariant stores.
- assert (TargetRegisterInfo::isVirtualRegister(CopyDstReg) &&
- "copy dst is not a virtual reg");
+ assert(Register::isVirtualRegister(CopyDstReg) &&
+ "copy dst is not a virtual reg");
for (MachineInstr &UseMI : MRI->use_instructions(CopyDstReg)) {
if (UseMI.mayStore() && isInvariantStore(UseMI, TRI, MRI))
@@ -1010,11 +1009,11 @@ bool MachineLICMBase::IsLoopInvariantInst(MachineInstr &I) {
if (!MO.isReg())
continue;
- unsigned Reg = MO.getReg();
+ Register Reg = MO.getReg();
if (Reg == 0) continue;
// Don't hoist an instruction that uses or defines a physical register.
- if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
+ if (Register::isPhysicalRegister(Reg)) {
if (MO.isUse()) {
// If the physreg has no defs anywhere, it's just an ambient register
// and we can freely move its uses. Alternatively, if it's allocatable,
@@ -1061,8 +1060,8 @@ bool MachineLICMBase::HasLoopPHIUse(const MachineInstr *MI) const {
for (const MachineOperand &MO : MI->operands()) {
if (!MO.isReg() || !MO.isDef())
continue;
- unsigned Reg = MO.getReg();
- if (!TargetRegisterInfo::isVirtualRegister(Reg))
+ Register Reg = MO.getReg();
+ if (!Register::isVirtualRegister(Reg))
continue;
for (MachineInstr &UseMI : MRI->use_instructions(Reg)) {
// A PHI may cause a copy to be inserted.
@@ -1104,7 +1103,7 @@ bool MachineLICMBase::HasHighOperandLatency(MachineInstr &MI,
const MachineOperand &MO = UseMI.getOperand(i);
if (!MO.isReg() || !MO.isUse())
continue;
- unsigned MOReg = MO.getReg();
+ Register MOReg = MO.getReg();
if (MOReg != Reg)
continue;
@@ -1132,8 +1131,8 @@ bool MachineLICMBase::IsCheapInstruction(MachineInstr &MI) const {
if (!DefMO.isReg() || !DefMO.isDef())
continue;
--NumDefs;
- unsigned Reg = DefMO.getReg();
- if (TargetRegisterInfo::isPhysicalRegister(Reg))
+ Register Reg = DefMO.getReg();
+ if (Register::isPhysicalRegister(Reg))
continue;
if (!TII->hasLowDefLatency(SchedModel, MI, i))
@@ -1225,8 +1224,8 @@ bool MachineLICMBase::IsProfitableToHoist(MachineInstr &MI) {
const MachineOperand &MO = MI.getOperand(i);
if (!MO.isReg() || MO.isImplicit())
continue;
- unsigned Reg = MO.getReg();
- if (!TargetRegisterInfo::isVirtualRegister(Reg))
+ Register Reg = MO.getReg();
+ if (!Register::isVirtualRegister(Reg))
continue;
if (MO.isDef() && HasHighOperandLatency(MI, i, Reg)) {
LLVM_DEBUG(dbgs() << "Hoist High Latency: " << MI);
@@ -1304,7 +1303,7 @@ MachineInstr *MachineLICMBase::ExtractHoistableLoad(MachineInstr *MI) {
MachineFunction &MF = *MI->getMF();
const TargetRegisterClass *RC = TII->getRegClass(MID, LoadRegIndex, TRI, MF);
// Ok, we're unfolding. Create a temporary register and do the unfold.
- unsigned Reg = MRI->createVirtualRegister(RC);
+ Register Reg = MRI->createVirtualRegister(RC);
SmallVector<MachineInstr *, 2> NewMIs;
bool Success = TII->unfoldMemoryOperand(MF, *MI, Reg,
@@ -1378,20 +1377,20 @@ bool MachineLICMBase::EliminateCSE(MachineInstr *MI,
// Physical registers may not differ here.
assert((!MO.isReg() || MO.getReg() == 0 ||
- !TargetRegisterInfo::isPhysicalRegister(MO.getReg()) ||
+ !Register::isPhysicalRegister(MO.getReg()) ||
MO.getReg() == Dup->getOperand(i).getReg()) &&
"Instructions with different phys regs are not identical!");
if (MO.isReg() && MO.isDef() &&
- !TargetRegisterInfo::isPhysicalRegister(MO.getReg()))
+ !Register::isPhysicalRegister(MO.getReg()))
Defs.push_back(i);
}
SmallVector<const TargetRegisterClass*, 2> OrigRCs;
for (unsigned i = 0, e = Defs.size(); i != e; ++i) {
unsigned Idx = Defs[i];
- unsigned Reg = MI->getOperand(Idx).getReg();
- unsigned DupReg = Dup->getOperand(Idx).getReg();
+ Register Reg = MI->getOperand(Idx).getReg();
+ Register DupReg = Dup->getOperand(Idx).getReg();
OrigRCs.push_back(MRI->getRegClass(DupReg));
if (!MRI->constrainRegClass(DupReg, MRI->getRegClass(Reg))) {
@@ -1403,8 +1402,8 @@ bool MachineLICMBase::EliminateCSE(MachineInstr *MI,
}
for (unsigned Idx : Defs) {
- unsigned Reg = MI->getOperand(Idx).getReg();
- unsigned DupReg = Dup->getOperand(Idx).getReg();
+ Register Reg = MI->getOperand(Idx).getReg();
+ Register DupReg = Dup->getOperand(Idx).getReg();
MRI->replaceRegWith(Reg, DupReg);
MRI->clearKillFlags(DupReg);
}