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* Remove unused 'isAlias' parameter.Lang Hames2012-02-101-8/+3
| | | | llvm-svn: 150224
* Constrain the regmask search space for local live ranges.Jakob Stoklund Olesen2012-02-101-3/+13
| | | | | | | When checking a local live range for interference, restrict the binary search to the single block. llvm-svn: 150220
* Cache basic block boundaries for faster RegMaskSlots access.Jakob Stoklund Olesen2012-02-101-0/+9
| | | | | | | Provide API to get a list of register mask slots and bits in a basic block. llvm-svn: 150219
* Optimize LiveIntervals::intervalIsInOneMBB().Jakob Stoklund Olesen2012-02-101-17/+22
| | | | | | | | No looping and binary searches necessary. Return a pointer to the containing block instead of just a bool. llvm-svn: 150218
* Cache iterators. Some of these are expensive to create.Benjamin Kramer2012-02-101-14/+16
| | | | llvm-svn: 150214
* Add register mask support to RAGreedy.Jakob Stoklund Olesen2012-02-091-2/+25
| | | | | | | | This only adds the interference checks required for correctness. We still need to take advantage of register masks for the interference driven live range splitting. llvm-svn: 150191
* Preserve physreg kills in MachineBasicBlock::SplitCriticalEdge.Lang Hames2012-02-091-4/+7
| | | | | | | Failure to preserve kills was causing LiveIntervals to miss some EFLAGS live ranges. Unfortunately I've been unable to reduce a good test case yet. llvm-svn: 150152
* Fix kill flags when moving instructions using LiveIntervals::moveInstr(...).Lang Hames2012-02-091-6/+23
| | | | llvm-svn: 150150
* Remove assertion. Not all use operands are reads.Lang Hames2012-02-091-3/+0
| | | | llvm-svn: 150149
* Improve TargetPassConfig. No intended functionality.Andrew Trick2012-02-091-98/+149
| | | | | | | Split CodeGen into stages. Distinguish between optimization and correctness. llvm-svn: 150122
* commentAndrew Trick2012-02-091-1/+1
| | | | llvm-svn: 150121
* Erase dead copies that are clobbered by a call.Jakob Stoklund Olesen2012-02-091-5/+17
| | | | | | This does make a difference, at least when using RABasic. llvm-svn: 150118
* Never delete instructions that define reserved registers.Jakob Stoklund Olesen2012-02-091-6/+10
| | | | | | | | | | | I think this was already the intention, but DeadMachineInstructionElim was accidentally tracking the liveness of reserved registers. Now, instructions with reserved defs are never deleted. This prevents the call stack adjustment instructions from getting deleted when enabling register masks. llvm-svn: 150116
* Handle register masks in MachineCopyPropagation.Jakob Stoklund Olesen2012-02-081-0/+17
| | | | | | | | For simplicity, treat calls with register masks as basic block boundaries. This means we can't copy propagate callee-saved registers across calls, but I don't think that is a big deal. llvm-svn: 150108
* Codegen pass definition cleanup. No functionality.Andrew Trick2012-02-0822-157/+86
| | | | | | | | | | | | | Moving toward a uniform style of pass definition to allow easier target configuration. Globally declare Pass ID. Globally declare pass initializer. Use INITIALIZE_PASS consistently. Add a call to the initializer from CodeGen.cpp. Remove redundant "createPass" functions and "getPassName" methods. While cleaning up declarations, cleaned up comments (sorry for large diff). llvm-svn: 150100
* Move pass configuration out of pass constructors: MachineLICM.Andrew Trick2012-02-082-5/+6
| | | | llvm-svn: 150099
* whitespaceAndrew Trick2012-02-081-11/+11
| | | | llvm-svn: 150098
* Move pass configuration out of pass constructors: StackSlotColoring.Andrew Trick2012-02-082-3/+3
| | | | llvm-svn: 150097
* Move pass configuration out of pass constructors: PostRAScheduler.Andrew Trick2012-02-082-7/+9
| | | | llvm-svn: 150096
* Move pass configuration out of pass constructors: BranchFolderPassAndrew Trick2012-02-083-13/+20
| | | | llvm-svn: 150095
* whitespaceAndrew Trick2012-02-088-80/+80
| | | | llvm-svn: 150094
* Added TargetPassConfig::setOptAndrew Trick2012-02-082-1/+12
| | | | llvm-svn: 150093
* Added Pass::createPass(ID) to handle pass configuration by IDAndrew Trick2012-02-081-2/+6
| | | | llvm-svn: 150092
* Move pass configuration out of pass constructors: TailDuplicate::PreRegAllocAndrew Trick2012-02-082-8/+9
| | | | llvm-svn: 150091
* Add Register mask support to RABasic.Jakob Stoklund Olesen2012-02-081-0/+14
| | | | | | | When a virtual register is live across a call, limit the search space to call-preserved registers. llvm-svn: 150081
* Keep track of register masks in LiveIntervalAnalysis.Jakob Stoklund Olesen2012-02-081-0/+62
| | | | | | | | | | | | | Build an ordered vector of register mask operands (i.e., calls) when computing live intervals. Provide a checkRegMaskInterference() function that computes a bit mask of usable registers for a live range. This is a quick way of determining of a live range crosses any calls, and restricting it to the callee saved registers if it does. Previously, we had to discover call clobbers for each candidate register independently. llvm-svn: 150077
* Added MachineInstr::isBundled() to check if an instruction is part of a bundle.Andrew Trick2012-02-082-1/+11
| | | | llvm-svn: 150044
* misched: bug in debug output.Andrew Trick2012-02-081-2/+4
| | | | llvm-svn: 150043
* stale commentAndrew Trick2012-02-081-2/+0
| | | | llvm-svn: 150041
* Remove tabs.Devang Patel2012-02-071-17/+17
| | | | llvm-svn: 150012
* Expose TargetPassConfig to PEI PassAndrew Trick2012-02-062-0/+2
| | | | llvm-svn: 149927
* Add TargetPassConfig to the PassManager for use inside passesAndrew Trick2012-02-061-2/+2
| | | | llvm-svn: 149926
* Don't explicitly renumber slot indices.Jakob Stoklund Olesen2012-02-061-2/+0
| | | | | | We have automatic local renumbering now. llvm-svn: 149920
* Make sure a reserved register has a live interval before merging.Jakob Stoklund Olesen2012-02-061-1/+5
| | | | llvm-svn: 149910
* [unwind removal] Remove all of the code for the dead 'unwind' instruction. ThereBill Wendling2012-02-063-7/+0
| | | | | | | were no 'unwind' instructions being generated before this, so this is in effect a no-op. llvm-svn: 149906
* [unwind removal] We no longer have 'unwind' instructions being generated, soBill Wendling2012-02-061-2/+1
| | | | | | remove the code that handles them. llvm-svn: 149901
* DebugInfo: Provide a new hook to encode relationship between a property and ↵Devang Patel2012-02-061-0/+11
| | | | | | an ivar. llvm-svn: 149874
* Move some llvm_unreachable's from r149849 out of switch statements to ↵Craig Topper2012-02-061-2/+2
| | | | | | satisfy -Wcovered-switch-default llvm-svn: 149860
* Persuade GCC that there is nothing worth warning about here (there isn't).Duncan Sands2012-02-051-0/+1
| | | | llvm-svn: 149834
* Add additional documentation to the extract-and-trunc dagcombine optimization.Nadav Rotem2012-02-051-3/+8
| | | | llvm-svn: 149823
* Convert assert(0) to llvm_unreachableCraig Topper2012-02-0513-46/+41
| | | | llvm-svn: 149816
* reapply the patches reverted in r149470 that reenable ConstantDataArray,Chris Lattner2012-02-052-40/+25
| | | | | | | | | but with a critical fix to the SelectionDAG code that optimizes copies from strings into immediate stores: the previous code was stopping reading string data at the first nul. Address this by adding a new argument to llvm::getConstantStringInfo, preserving the behavior before the patch. llvm-svn: 149800
* Drop the REDEF_BY_EC VNInfo flag.Jakob Stoklund Olesen2012-02-043-37/+0
| | | | | | | | | | A live range that has an early clobber tied redef now looks like a normal tied redef, except the early clobber def uses the early clobber slot. This is enough to handle any strange interference problems. llvm-svn: 149769
* Correctly terminate a physreg redefined by an early clobber.Jakob Stoklund Olesen2012-02-041-1/+1
| | | | | | | | | | | | | | | | | I don't have a test that fails because of this, but a test case like CodeGen/X86/2009-12-01-EarlyClobberBug.ll exposes the problem. EAX is redefined by a tied early clobber operand on inline asm, and the live range should look like this: %EAX,inf = [48r,64e:0)[64e,80r:1) 0@48r 1@64e Previously, the two values got merged: %EAX,inf = [48r,80r:0) 0@48r With this bug fixed, the REDEF_BY_EC VNInfo flag is no longer needed. llvm-svn: 149768
* Fix a leak!Nick Lewycky2012-02-041-0/+2
| | | | | | | | | | | | Andy, in a previous commit you made this into an ImmutablePass so that you could add it to the PassManager, then in the next commit you left it a Pass but removed the code that added it to the PM. If you do add it to the PM then the PM should take care of deleting it, but it's also true that nothing in codegen needs this object to exist after it's done its work here. It's not clear to me which design you want; this should likely either cease to be a Pass or be added to the PM where other parts of CodeGen will request it. llvm-svn: 149765
* Don't store COPY pointers in VNInfo.Jakob Stoklund Olesen2012-02-047-96/+46
| | | | | | | | | | If a value is defined by a COPY, that instuction can easily and cheaply be found by getInstructionFromIndex(VNI->def). This reduces the size of VNInfo from 24 to 16 bytes, and improves llc compile time by 3%. llvm-svn: 149763
* TargetPassConfig: confine the MC configuration to TargetMachine.Andrew Trick2012-02-042-87/+108
| | | | | | | | | | Passes prior to instructon selection are now split into separate configurable stages. Header dependencies are simplified. The bulk of this diff is simply removal of the silly DisableVerify flags. Sorry for the target header churn. Attempting to stabilize them. llvm-svn: 149754
* Move TargetPassConfig implementation into Passes.cppAndrew Trick2012-02-042-305/+312
| | | | llvm-svn: 149753
* Make TargetPassConfig an ImmutablePass so CodeGenPasses can query optionsAndrew Trick2012-02-043-15/+37
| | | | llvm-svn: 149752
* Emit new property tag.Devang Patel2012-02-041-1/+29
| | | | llvm-svn: 149737
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