maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Finegrainify namespacification 

Implement LiveVariables::getIndexMachineBasicBlock

llvm-svn: 11018
This commit is contained in:
Chris Lattner 2004-01-30 22:08:53 +00:00
parent bc699a10d1
commit 0770862334
1 changed files with 17 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
llvm/lib/CodeGen/LiveVariables.cpp
View File

@ -32,8 +32,7 @@
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
#include "llvm/Support/CFG.h" #include "llvm/Support/CFG.h"
#include "Support/DepthFirstIterator.h" #include "Support/DepthFirstIterator.h"
using namespace llvm;
namespace llvm {
static RegisterAnalysis<LiveVariables> X("livevars", "Live Variable Analysis"); static RegisterAnalysis<LiveVariables> X("livevars", "Live Variable Analysis");
@ -42,6 +41,22 @@ LiveVariables::getMachineBasicBlockInfo(MachineBasicBlock *MBB) const{
return BBMap.find(MBB->getBasicBlock())->second; 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) { LiveVariables::VarInfo &LiveVariables::getVarInfo(unsigned RegIdx) {
assert(RegIdx >= MRegisterInfo::FirstVirtualRegister && assert(RegIdx >= MRegisterInfo::FirstVirtualRegister &&
"getVarInfo: not a virtual register!"); "getVarInfo: not a virtual register!");
@ -300,5 +315,3 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
return false; return false;
} }
} // End llvm namespace