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Finegrainify namespacification

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Implement LiveVariables::getIndexMachineBasicBlock


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11018 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-01-30 22:08:53 +00:00
parent 43549f710a
commit 49a5aaacef
1 changed files with 17 additions and 4 deletions
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21
lib/CodeGen/LiveVariables.cpp
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@ -32,8 +32,7 @@
#include "llvm/Target/TargetMachine.h"
#include "llvm/Support/CFG.h"
#include "Support/DepthFirstIterator.h"
namespace llvm {
using namespace llvm;
static RegisterAnalysis<LiveVariables> X("livevars", "Live Variable Analysis");
@ -41,6 +40,22 @@ const std::pair<MachineBasicBlock*, unsigned> &
LiveVariables::getMachineBasicBlockInfo(MachineBasicBlock *MBB) const{
return BBMap.find(MBB->getBasicBlock())->second;
}
/// getIndexMachineBasicBlock() - Given a block index, return the
/// MachineBasicBlock corresponding to it.
MachineBasicBlock *LiveVariables::getIndexMachineBasicBlock(unsigned Idx) {
if (BBIdxMap.empty()) {
BBIdxMap.resize(BBMap.size());
for (std::map<const BasicBlock*, std::pair<MachineBasicBlock*, unsigned> >
::iterator I = BBMap.begin(), E = BBMap.end(); I != E; ++I) {
assert(BBIdxMap.size() > I->second.second &&"Indices are not sequential");
assert(BBIdxMap[I->second.second] == 0 && "Multiple idx collision!");
BBIdxMap[I->second.second] = I->second.first;
}
}
assert(Idx < BBIdxMap.size() && "BB Index out of range!");
return BBIdxMap[Idx];
}
LiveVariables::VarInfo &LiveVariables::getVarInfo(unsigned RegIdx) {
assert(RegIdx >= MRegisterInfo::FirstVirtualRegister &&
@ -300,5 +315,3 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
return false;
}
} // End llvm namespace