diff options
Diffstat (limited to 'llvm/lib/CodeGen/LiveIntervalAnalysis.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/LiveIntervalAnalysis.cpp | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp index bab3d0d..b91e717 100644 --- a/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp +++ b/llvm/lib/CodeGen/LiveIntervalAnalysis.cpp @@ -9,8 +9,7 @@ // // This file implements the LiveInterval analysis pass which is used // by the Linear Scan Register allocator. This pass linearizes the -// basic blocks of the function in DFS order and uses the -// LiveVariables pass to conservatively compute live intervals for +// basic blocks of the function in DFS order and computes live intervals for // each virtual and physical register. // //===----------------------------------------------------------------------===// @@ -48,7 +47,6 @@ char &llvm::LiveIntervalsID = LiveIntervals::ID; INITIALIZE_PASS_BEGIN(LiveIntervals, "liveintervals", "Live Interval Analysis", false, false) INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass) -INITIALIZE_PASS_DEPENDENCY(LiveVariables) INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree) INITIALIZE_PASS_DEPENDENCY(SlotIndexes) INITIALIZE_PASS_END(LiveIntervals, "liveintervals", @@ -77,10 +75,6 @@ void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const { AU.setPreservesCFG(); AU.addRequired<AAResultsWrapperPass>(); AU.addPreserved<AAResultsWrapperPass>(); - // LiveVariables isn't really required by this analysis, it is only required - // here to make sure it is live during TwoAddressInstructionPass and - // PHIElimination. This is temporary. - AU.addRequired<LiveVariables>(); AU.addPreserved<LiveVariables>(); AU.addPreservedID(MachineLoopInfoID); AU.addRequiredTransitiveID(MachineDominatorsID); |