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Ekaterina Romanova ed2ca70ccf Fix for http://llvm.org/bugs/show_bug.cgi?id=18590

This patch fixes the bug in peephole optimization that folds a load which defines one vreg into the one and only use of that vreg. With debug info, a DBG_VALUE that referenced the vreg considered to be a use, preventing the optimization. The fix is to ignore DBG_VALUE's during the optimization, and undef a DBG_VALUE that references a vreg that gets removed.
Patch by Trevor Smigiel!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203829 91177308-0d34-0410-b5e6-96231b3b80d8

2014-03-13 18:47:12 +00:00

..

Remove unused typedef

2014-03-04 09:57:00 +00:00

Analysis.h

Replace '#include ValueTypes.h' with forward declarations.

2014-03-12 08:00:24 +00:00

AsmPrinter.h

Accept Twine's to AsmPrinter::getTempSymbol (refactoring for an incoming change)

2014-03-11 23:12:08 +00:00

CalcSpillWeights.h

CalcSpillWeights: allow overidding the spill weight normalizing function

2013-11-11 19:56:14 +00:00

CallingConvLower.h

Replace '#include ValueTypes.h' with forward declarations.

2014-03-12 08:00:24 +00:00

CommandFlags.h

Refactor TargetOptions initialization into a single place.

2014-02-19 17:09:35 +00:00

DAGCombine.h

…

DFAPacketizer.h

…

EdgeBundles.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

FastISel.h

Replace '#include ValueTypes.h' with forward declarations.

2014-03-12 08:00:24 +00:00

FunctionLoweringInfo.h

Replace '#include ValueTypes.h' with forward declarations.

2014-03-12 08:00:24 +00:00

GCMetadata.h

[Layering] Move DebugLoc.h into the IR library. The implementation

2014-03-05 10:30:38 +00:00

GCMetadataPrinter.h

…

GCs.h

Test commit: Remove trailing whitespace.

2014-03-10 22:24:07 +00:00

GCStrategy.h

…

IntrinsicLowering.h

Rename some member variables from TD to DL.

2014-02-18 15:33:12 +00:00

ISDOpcodes.h

R600: Fix extloads from i8 / i16 to i64.

2014-03-06 17:34:12 +00:00

JITCodeEmitter.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

LatencyPriorityQueue.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

LexicalScopes.h

[Layering] Move DebugLoc.h into the IR library. The implementation

2014-03-05 10:30:38 +00:00

LinkAllAsmWriterComponents.h

…

LinkAllCodegenComponents.h

…

LiveInterval.h

[C++11] Use std::tie to simplify compare operators.

2014-03-03 19:58:30 +00:00

LiveIntervalAnalysis.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

LiveIntervalUnion.h

Rename LiveRange to LiveInterval::Segment

2013-10-10 21:28:43 +00:00

LivePhysRegs.h

Convert register liveness tracking to work on a sub-register level instead of just register units.

2013-12-14 06:52:56 +00:00

LiveRangeEdit.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

LiveRegMatrix.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

LiveStackAnalysis.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

LiveVariables.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineBasicBlock.h

[C++11] Replace llvm::next and llvm::prior with std::next and std::prev.

2014-03-02 12:27:27 +00:00

MachineBlockFrequencyInfo.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineBranchProbabilityInfo.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineCodeEmitter.h

[Layering] Move DebugLoc.h into the IR library. The implementation

2014-03-05 10:30:38 +00:00

MachineCodeInfo.h

…

MachineConstantPool.h

Directly access objects which may change during compilation.

2013-06-17 20:41:25 +00:00

MachineDominators.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineFrameInfo.h

Check for dynamic allocas and inline asm that clobbers sp before building

2014-03-05 02:43:26 +00:00

MachineFunction.h

[Layering] Move DebugLoc.h into the IR library. The implementation

2014-03-05 10:30:38 +00:00

MachineFunctionAnalysis.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineFunctionPass.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineInstr.h

Replace PROLOG_LABEL with a new CFI_INSTRUCTION.

2014-03-07 06:08:31 +00:00

MachineInstrBuilder.h

Replace PROLOG_LABEL with a new CFI_INSTRUCTION.

2014-03-07 06:08:31 +00:00

MachineInstrBundle.h

…

MachineJumpTableInfo.h

…

MachineLoopInfo.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineMemOperand.h

Print the address space of a MachineMemOperand

2013-12-14 00:24:02 +00:00

MachineModuleInfo.h

MachineModuleInfo: Turn nested std::pairs into a proper struct.

2014-03-09 15:44:39 +00:00

MachineModuleInfoImpls.h

…

MachineOperand.h

Replace PROLOG_LABEL with a new CFI_INSTRUCTION.

2014-03-07 06:08:31 +00:00

MachinePassRegistry.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachinePostDominators.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineRegisterInfo.h

Fix for http://llvm.org/bugs/show_bug.cgi?id=18590

2014-03-13 18:47:12 +00:00

MachineRelocation.h

[typo] An LLVM.

2013-08-16 23:30:19 +00:00

MachineScheduler.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachineSSAUpdater.h

…

MachineTraceMetrics.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

MachORelocation.h

…

Passes.h

[CodeGenPrepare] Move CodeGenPrepare into lib/CodeGen.

2014-02-22 00:07:45 +00:00

PseudoSourceValue.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

RegAllocPBQP.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

RegAllocRegistry.h

…

RegisterClassInfo.h

MI-Sched: Adjust regpressure limits for reserved regs.

2013-06-21 18:32:58 +00:00

RegisterPressure.h

Represent RegUnit liveness with LiveRange instance

2013-10-10 21:29:02 +00:00

RegisterScavenging.h

Use SmallVectorImpl::iterator/const_iterator instead of SmallVector

2013-07-03 05:01:24 +00:00

ResourcePriorityQueue.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-08 06:31:39 +00:00

RuntimeLibcalls.h

Fix filename in header comment

2013-11-16 15:40:54 +00:00

ScheduleDAG.h

[C++11] Expand and eliminate the LLVM_ENUM_INT_TYPE() macro

2014-03-02 03:20:38 +00:00

ScheduleDAGInstrs.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

ScheduleDFS.h

…

ScheduleHazardRecognizer.h

Add two additional hazard recognizer functions

2013-12-11 22:33:43 +00:00

SchedulerRegistry.h

…

ScoreboardHazardRecognizer.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

SelectionDAG.h

IR: add a second ordering operand to cmpxhg for failure

2014-03-11 10:48:52 +00:00

SelectionDAGISel.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-08 06:31:39 +00:00

SelectionDAGNodes.h

IR: add a second ordering operand to cmpxhg for failure

2014-03-11 10:48:52 +00:00

SlotIndexes.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

StackMapLivenessAnalysis.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

StackMaps.h

[Stackmaps] Cleanup code. No functional change intended.

2014-02-10 23:30:26 +00:00

StackProtector.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00

TargetLoweringObjectFileImpl.h

Remove shouldEmitUsedDirectiveFor.

2014-03-06 22:47:08 +00:00

TargetSchedule.h

Fix known typos

2014-01-24 17:20:08 +00:00

ValueTypes.h

Add helpers for getting scalar sizes of vector value types.

2014-03-11 01:38:48 +00:00

ValueTypes.td

Implement aarch64 neon instruction set AdvSIMD (Across).

2013-10-05 08:22:10 +00:00

VirtRegMap.h

[C++11] Add 'override' keyword to virtual methods that override their base class.

2014-03-07 09:26:03 +00:00