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Add skeleton of simple basic block instruction selector.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54522 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-08-08 07:27:28 +00:00
parent ffa45431c8
commit 381cb07544
3 changed files with 81 additions and 3 deletions
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10
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
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@@ -12,10 +12,10 @@
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "isel"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "SimpleBBISel.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/CodeGen/ScheduleDAG.h"
#include "llvm/Constants.h"
#include "llvm/CallingConv.h"
#include "llvm/DerivedTypes.h"
@@ -33,6 +33,7 @@
#include "llvm/CodeGen/MachineJumpTableInfo.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/CodeGen/ScheduleDAG.h"
#include "llvm/CodeGen/SchedulerRegistry.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Target/TargetRegisterInfo.h"
@@ -5441,11 +5442,14 @@ void SelectionDAGISel::SelectAllBasicBlocks(Function &Fn, MachineFunction &MF,
// each basic block.
NodeAllocatorType NodeAllocator;
SimpleBBISel SISel(MF, TLI);
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);
if (!FastISel || !SISel.SelectBasicBlock(LLVMBB, FuncInfo.MBBMap[LLVMBB]))
SelectBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
FinishBasicBlock(LLVMBB, MF, FuncInfo, PHINodesToUpdate, NodeAllocator);
}
}