Jakob Stoklund Olesen f5497fb1b4 Teach LiveInterval::isZeroLength about null SlotIndexes. ...

When instructions are deleted, they leave tombstone SlotIndex entries.
The isZeroLength method should ignore these null indexes.

This causes RABasic to sometimes spill a callee-saved register in the
abi-isel.ll test, so don't run that test with -regalloc=basic.  Prioritizing
register allocation according to spill weight can cause more registers to be
used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131436 91177308-0d34-0410-b5e6-96231b3b80d8

2011-05-16 23:50:05 +00:00

..

PBQP

Remove unused STL header includes.

2011-04-23 19:53:52 +00:00

Analysis.h

Enable sibling call optimization of libcalls which are expanded during

2010-11-30 23:55:39 +00:00

AsmPrinter.h

Use .cfi_sections to put the unwind info in .debug_frame when possible. With

2011-05-10 18:39:09 +00:00

BinaryObject.h

Merge System into Support.

2010-11-29 18:16:10 +00:00

CalcSpillWeights.h

Use the new TRI->getLargestLegalSuperClass hook to constrain register class inflation.

2011-04-26 18:52:36 +00:00

CallingConvLower.h

ARM byval support. Will be enabled by another patch to the FE. <rdar://problem/7662569>

2011-04-20 16:47:52 +00:00

EdgeBundles.h

Build the Hopfield network incrementally when splitting global live ranges.

2011-04-09 02:59:09 +00:00

FastISel.h

Make fast-isel work correctly s/uadd.with.overflow intrinsics.

2011-05-16 21:06:17 +00:00

FunctionLoweringInfo.h

There are times when the landing pad won't have a call to 'eh.selector' in

2011-03-03 23:14:05 +00:00

GCMetadata.h

Attach a DebugLoc to a GC point in order to get precise information in the JIT of a GC point.

2010-09-24 17:27:50 +00:00

GCMetadataPrinter.h

Trailing whitespace.

2010-07-01 01:00:22 +00:00

GCs.h

…

GCStrategy.h

…

IntrinsicLowering.h

Recognize inline asm 'rev /bin/bash, ' as a bswap intrinsic call.

2011-01-08 01:24:27 +00:00

ISDOpcodes.h

Fix comment.

2011-05-11 01:08:39 +00:00

JITCodeEmitter.h

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

LatencyPriorityQueue.h

Various bits of framework needed for precise machine-level selection

2010-12-24 05:03:26 +00:00

LinkAllAsmWriterComponents.h

Make a few more LLVM headers parsable as standalone headers.

2009-11-05 23:01:30 +00:00

LinkAllCodegenComponents.h

Stub out RegAllocGreedy.

2010-12-08 03:26:16 +00:00

LiveInterval.h

Teach LiveInterval::isZeroLength about null SlotIndexes.

2011-05-16 23:50:05 +00:00

LiveIntervalAnalysis.h

Dead code elimination may separate the live interval into multiple connected components.

2011-03-17 20:37:07 +00:00

LiveStackAnalysis.h

Teach TargetRegisterInfo how to cram stack slot indexes in with the virtual and

2011-01-09 21:17:37 +00:00

LiveVariables.h

Use an IndexedMap for LiveVariables::VirtRegInfo.

2011-01-08 23:10:57 +00:00

MachineBasicBlock.h

Cache the fairly expensive last split point computation and provide a fast

2011-04-05 04:20:27 +00:00

MachineCodeEmitter.h

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

MachineCodeInfo.h

Merge System into Support.

2010-11-29 18:16:10 +00:00

MachineConstantPool.h

Add comment to clarify what MachineConstantPoolEntry::isMachineConstantPoolEntry() means.

2011-03-24 06:28:45 +00:00

MachineDominators.h

typoes

2010-09-10 22:25:58 +00:00

MachineFrameInfo.h

Tidy up.

2011-03-07 19:28:43 +00:00

MachineFunction.h

Revert r124611 - "Keep track of incoming argument's location while emitting LiveIns."

2011-02-21 23:21:26 +00:00

MachineFunctionAnalysis.h

Give MachineFunctionAnalysis a getPassName() implementation to make timing reports prettier.

2011-01-04 18:21:18 +00:00

MachineFunctionPass.h

Reapply r110396, with fixes to appease the Linux buildbot gods.

2010-08-06 18:33:48 +00:00

MachineInstr.h

Re-commit 131172 with fix. MachineInstr identity checks should check dead

2011-05-12 00:56:58 +00:00

MachineInstrBuilder.h

add a missing operator that caused us to have to use (*MIB).foo everywhere.

2011-04-29 05:24:07 +00:00

MachineJumpTableInfo.h

Add explicit keywords.

2010-06-18 19:04:37 +00:00

MachineLocation.h

Merge .debug_loc entries whenever possible to reduce debug_loc size.

2011-02-04 22:57:18 +00:00

MachineLoopInfo.h

Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which

2010-10-19 17:21:58 +00:00

MachineLoopRanges.h

Enable loop splitting in RegAllocGreedy.

2010-12-17 23:16:32 +00:00

MachineMemOperand.h

Merge System into Support.

2010-11-29 18:16:10 +00:00

MachineModuleInfo.h

Fix small bug in setDebugInfoAvailability.

2011-01-05 17:01:57 +00:00

MachineModuleInfoImpls.h

Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that

2010-03-10 22:34:10 +00:00

MachineOperand.h

Simplify LiveDebugVariables by storing MachineOperand copies locations instead

2011-01-09 05:33:21 +00:00

MachinePassRegistry.h

Sundry dependent-name fixes flagged by clang++.

2009-12-17 23:49:16 +00:00

MachineRegisterInfo.h

Revert r124611 - "Keep track of incoming argument's location while emitting LiveIns."

2011-02-21 23:21:26 +00:00

MachineRelocation.h

Merge System into Support.

2010-11-29 18:16:10 +00:00

MachineSSAUpdater.h

Combine the implementations of the core part of the SSAUpdater and

2010-05-04 23:18:19 +00:00

MachORelocation.h

Merge System into Support.

2010-11-29 18:16:10 +00:00

ObjectCodeEmitter.h

change EH related stuff (other than EH_LABEL) to use MCSymbol

2010-03-14 01:41:15 +00:00

Passes.h

Add the SpillPlacement analysis pass.

2011-01-06 01:21:53 +00:00

ProcessImplicitDefs.h

Place context in member variables instead of passing around pointers.

2011-03-14 20:57:14 +00:00

PseudoSourceValue.h

Make PseudoSourceValue's classof recognize

2009-11-16 20:40:06 +00:00

RegAllocPBQP.h

Fixed some dependencies in RegAllocPBQP.h . Thanks to Borja Ferrer for pointing out this issue.

2010-12-08 22:15:32 +00:00

RegAllocRegistry.h

…

RegisterCoalescer.h

Merge System into Support.

2010-11-29 18:16:10 +00:00

RegisterScavenging.h

Teach the register scavenger to take subregs into account when finding a free register.

2011-03-05 00:20:19 +00:00

RuntimeLibcalls.h

Issue libcalls __udivmod*i4 / __divmod*i4 for div / rem pairs.

2011-04-01 00:42:02 +00:00

ScheduleDAG.h

Be careful about scheduling nodes above previous calls. It increase usages of

2011-04-26 21:31:35 +00:00

ScheduleHazardRecognizer.h

Convert -enable-sched-cycles and -enable-sched-hazard to -disable

2011-01-21 05:51:33 +00:00

SchedulerRegistry.h

Add an ILP scheduler. This is a register pressure aware scheduler that's

2010-07-24 00:39:05 +00:00

ScoreboardHazardRecognizer.h

Remove unused STL header includes.

2011-04-23 19:53:52 +00:00

SelectionDAG.h

Delete unused variables.

2011-05-16 22:19:54 +00:00

SelectionDAGISel.h

Recommit the fix for rdar://9289512 with a couple tweaks to

2011-04-22 21:59:37 +00:00

SelectionDAGNodes.h

Fix a ton of comment typos found by codespell. Patch by

2011-04-15 05:18:47 +00:00

SlotIndexes.h

Remove an unused variable in NDEBUG (found with -Wunused-variable).

2011-05-02 05:49:01 +00:00

TargetLoweringObjectFileImpl.h

GCC uses a different encoding of pointers in the FDE when using

2011-05-01 04:49:54 +00:00

ValueTypes.h

rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for

2010-12-21 02:38:05 +00:00

ValueTypes.td

fix comments; patch by Edmund Grimley-Evans\!

2010-09-17 17:52:00 +00:00