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Remove the -live-regunits command line option.
Register allocators depend on it being permanently enabled now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158873 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -27,7 +27,6 @@
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#include "llvm/Target/TargetRegisterInfo.h"
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#include "llvm/Target/TargetInstrInfo.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/raw_ostream.h"
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@ -40,9 +39,6 @@
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#include <cmath>
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using namespace llvm;
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// Temporary option to enable regunit liveness.
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static cl::opt<bool> LiveRegUnits("live-regunits", cl::Hidden, cl::init(true));
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STATISTIC(numIntervals , "Number of original intervals");
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char LiveIntervals::ID = 0;
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@ -62,8 +58,7 @@ void LiveIntervals::getAnalysisUsage(AnalysisUsage &AU) const {
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AU.addRequired<LiveVariables>();
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AU.addPreserved<LiveVariables>();
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AU.addPreservedID(MachineLoopInfoID);
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if (LiveRegUnits)
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AU.addRequiredTransitiveID(MachineDominatorsID);
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AU.addRequiredTransitiveID(MachineDominatorsID);
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AU.addPreservedID(MachineDominatorsID);
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AU.addPreserved<SlotIndexes>();
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AU.addRequiredTransitive<SlotIndexes>();
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@ -109,9 +104,8 @@ bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
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AA = &getAnalysis<AliasAnalysis>();
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LV = &getAnalysis<LiveVariables>();
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Indexes = &getAnalysis<SlotIndexes>();
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if (LiveRegUnits)
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DomTree = &getAnalysis<MachineDominatorTree>();
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if (LiveRegUnits && !LRCalc)
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DomTree = &getAnalysis<MachineDominatorTree>();
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if (!LRCalc)
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LRCalc = new LiveRangeCalc();
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AllocatableRegs = TRI->getAllocatableSet(fn);
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ReservedRegs = TRI->getReservedRegs(fn);
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@ -120,9 +114,7 @@ bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
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numIntervals += getNumIntervals();
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if (LiveRegUnits) {
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computeLiveInRegUnits();
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}
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computeLiveInRegUnits();
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DEBUG(dump());
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return true;
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@ -1,5 +1,4 @@
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; RUN: llc -march=x86-64 -mcpu=core2 -enable-misched -misched=shuffle -misched-bottomup < %s
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; RUN: llc -march=x86-64 -mcpu=core2 -enable-misched -misched=shuffle -misched-bottomup -live-regunits < %s
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; REQUIRES: asserts
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;
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; Interesting MachineScheduler cases.
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