From 49a5aaacef127970f91648ac468de1cd2b6f462f Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Fri, 30 Jan 2004 22:08:53 +0000 Subject: [PATCH] Finegrainify namespacification Implement LiveVariables::getIndexMachineBasicBlock git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11018 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/LiveVariables.cpp | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp index bf78c53214c..845af13a30b 100644 --- a/lib/CodeGen/LiveVariables.cpp +++ b/lib/CodeGen/LiveVariables.cpp @@ -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 X("livevars", "Live Variable Analysis"); @@ -41,6 +40,22 @@ const std::pair & 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 > + ::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