6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-07 12:28:24 +00:00
Code Issues Projects Releases Wiki Activity

Factor code that finalize PHI nodes, jump tables, etc. out of SelectBasicBlock. No functionality changes.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54438 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-08-07 00:43:25 +00:00
parent 9200e81a18
commit 39fd6e81b1
2 changed files with 29 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
include/llvm/CodeGen/SelectionDAGISel.h
View File

@@ -182,6 +182,11 @@ private:
FunctionLoweringInfo &FuncInfo);
void SelectBasicBlock(BasicBlock *BB, MachineFunction &MF,
FunctionLoweringInfo &FuncInfo,
std::vector<std::pair<MachineInstr*, unsigned> > &PHINodesToUpdate,
NodeAllocatorType &NodeAllocator);
void FinishBasicBlock(BasicBlock *BB, MachineFunction &MF,
FunctionLoweringInfo &FuncInfo,
std::vector<std::pair<MachineInstr*, unsigned> > &PHINodesToUpdate,
NodeAllocatorType &NodeAllocator);
void BuildSelectionDAG(SelectionDAG &DAG, BasicBlock *LLVMBB,

19
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@@ -5441,16 +5441,20 @@ void SelectionDAGISel::SelectAllBasicBlocks(Function &Fn, MachineFunction &MF,
// each basic block.
NodeAllocatorType NodeAllocator;
for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I)
SelectBasicBlock(I, MF, FuncInfo, NodeAllocator);
std::vector<std::pair<MachineInstr*, unsigned> > PHINodesToUpdate;
for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
BasicBlock *LLVMBB = &*I;
PHINodesToUpdate.clear();
SelectBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
FinishBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
}
}
void
SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
FunctionLoweringInfo &FuncInfo,
std::vector<std::pair<MachineInstr*, unsigned> > &PHINodesToUpdate,
NodeAllocatorType &NodeAllocator) {
std::vector<std::pair<MachineInstr*, unsigned> > PHINodesToUpdate;
{
SelectionDAG DAG(TLI, MF, FuncInfo,
getAnalysisToUpdate<MachineModuleInfo>(),
NodeAllocator);
@@ -5462,8 +5466,13 @@ SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
// Second step, emit the lowered DAG as machine code.
CodeGenAndEmitDAG(DAG);
}
}
void
SelectionDAGISel::FinishBasicBlock(BasicBlock *LLVMBB, MachineFunction &MF,
FunctionLoweringInfo &FuncInfo,
std::vector<std::pair<MachineInstr*, unsigned> > &PHINodesToUpdate,
NodeAllocatorType &NodeAllocator) {
DOUT << "Total amount of phi nodes to update: "
<< PHINodesToUpdate.size() << "\n";
DEBUG(for (unsigned i = 0, e = PHINodesToUpdate.size(); i != e; ++i)