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Add Machine-CFG edges to SparcV9 MachineBasicBlocks.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14806 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2004-07-14 05:40:50 +00:00
parent 64116f980e
commit d94b6d3fa5
1 changed files with 20 additions and 6 deletions
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26
lib/Target/SparcV9/InstrSelection/InstrSelection.cpp
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@ -24,6 +24,7 @@
#include "llvm/CodeGen/MachineCodeForInstruction.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/CFG.h"
#include "../SparcV9RegInfo.h"
#include "Support/CommandLine.h"
#include "Support/LeakDetector.h"
@ -185,17 +186,30 @@ bool InstructionSelection::runOnFunction(Function &F) {
SelectInstructionsForTree(basicNode, /*goalnt*/1);
}
// Create the MachineBasicBlock records and add all of the MachineInstrs
// defined in the MachineCodeForInstruction objects to also live in the
// MachineBasicBlock objects.
// Create the MachineBasicBlocks and add all of the MachineInstrs
// defined in the MachineCodeForInstruction objects to the MachineBasicBlocks.
MachineFunction &MF = MachineFunction::get(&F);
std::map<const BasicBlock *, MachineBasicBlock *> MBBMap;
for (Function::iterator BI = F.begin(), BE = F.end(); BI != BE; ++BI) {
MachineBasicBlock *MCBB = new MachineBasicBlock(BI);
MF.getBasicBlockList().push_back(MCBB);
MachineBasicBlock *MBB = new MachineBasicBlock(BI);
MF.getBasicBlockList().push_back(MBB);
MBBMap[BI] = MBB;
for (BasicBlock::iterator II = BI->begin(); II != BI->end(); ++II) {
MachineCodeForInstruction &mvec = MachineCodeForInstruction::get(II);
MCBB->insert(MCBB->end(), mvec.begin(), mvec.end());
MBB->insert(MBB->end(), mvec.begin(), mvec.end());
}
}
// Initialize Machine-CFG for the function.
for (MachineFunction::iterator i = MF.begin (), e = MF.end (); i != e; ++i) {
MachineBasicBlock &MBB = *i;
const BasicBlock *BB = MBB.getBasicBlock ();
// for each successor S of BB, add MBBMap[S] as a successor of MBB.
for (succ_const_iterator si = succ_begin(BB), se = succ_end(BB); si != se; ++si) {
MachineBasicBlock *succMBB = MBBMap[*si];
assert (succMBB && "Can't find MachineBasicBlock for this successor");
MBB.addSuccessor (succMBB);
}
}