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AArch64: unique_ptr-ify map structures

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@216366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dylan Noblesmith 2014-08-25 01:59:38 +00:00
parent 7fb86b0705
commit 2c6a26dc68
1 changed files with 9 additions and 26 deletions
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35
lib/Target/AArch64/AArch64CollectLOH.cpp
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@ -195,12 +195,14 @@ typedef SetVector<const MachineInstr *> SetOfMachineInstr;
/// Map a basic block to a set of instructions per register.
/// This is used to represent the exposed uses of a basic block
/// per register.
typedef MapVector<const MachineBasicBlock *, SetOfMachineInstr *>
typedef MapVector<const MachineBasicBlock *,
std::unique_ptr<SetOfMachineInstr[]>>
BlockToSetOfInstrsPerColor;
/// Map a basic block to an instruction per register.
/// This is used to represent the live-out definitions of a basic block
/// per register.
typedef MapVector<const MachineBasicBlock *, const MachineInstr **>
typedef MapVector<const MachineBasicBlock *,
std::unique_ptr<const MachineInstr *[]>>
BlockToInstrPerColor;
/// Map an instruction to a set of instructions. Used to represent the
/// mapping def to reachable uses or use to definitions.
@ -237,9 +239,9 @@ static SetOfMachineInstr &getSet(BlockToSetOfInstrsPerColor &sets,
SetOfMachineInstr *result;
BlockToSetOfInstrsPerColor::iterator it = sets.find(&MBB);
if (it != sets.end())
result = it->second;
result = it->second.get();
else
result = sets[&MBB] = new SetOfMachineInstr[nbRegs];
result = (sets[&MBB] = make_unique<SetOfMachineInstr[]>(nbRegs)).get();
return result[reg];
}
@ -289,9 +291,9 @@ static void initReachingDef(MachineFunction &MF,
unsigned NbReg = RegToId.size();
for (MachineBasicBlock &MBB : MF) {
const MachineInstr **&BBGen = Gen[&MBB];
BBGen = new const MachineInstr *[NbReg];
memset(BBGen, 0, sizeof(const MachineInstr *) * NbReg);
auto &BBGen = Gen[&MBB];
BBGen = make_unique<const MachineInstr *[]>(NbReg);
memset(BBGen.get(), 0, sizeof(const MachineInstr *) * NbReg);
BitVector &BBKillSet = Kill[&MBB];
BBKillSet.resize(NbReg);
@ -422,22 +424,6 @@ static void reachingDefAlgorithm(MachineFunction &MF,
} while (HasChanged);
}
/// Release all memory dynamically allocated during the reaching
/// definition algorithm.
static void finitReachingDef(BlockToSetOfInstrsPerColor &In,
BlockToSetOfInstrsPerColor &Out,
BlockToInstrPerColor &Gen,
BlockToSetOfInstrsPerColor &ReachableUses) {
for (auto &IT : Out)
delete[] IT.second;
for (auto &IT : In)
delete[] IT.second;
for (auto &IT : ReachableUses)
delete[] IT.second;
for (auto &IT : Gen)
delete[] IT.second;
}
/// Reaching definition algorithm.
/// \param MF function on which the algorithm will operate.
/// \param[out] ColorOpToReachedUses will contain the result of the reaching
@ -474,9 +460,6 @@ static void reachingDef(MachineFunction &MF,
if (!DummyOp)
reachingDefAlgorithm(MF, ColorOpToReachedUses, In, Out, Gen, Kill,
ReachableUses, RegToId.size());
// finit.
finitReachingDef(In, Out, Gen, ReachableUses);
}
#ifndef NDEBUG