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* Simplify this code to not depend as much on CurMBB.Dan Gohman2009-08-151-16/+15
| | | | llvm-svn: 79068
* Do not completely skip subrange info for a zero sized array.Devang Patel2009-08-141-6/+5
| | | | llvm-svn: 79044
* Allow targets to specify their choice of calling conventions perAnton Korobeynikov2009-08-144-5/+17
| | | | | | | | | | libcall. Take advantage of this in the ARM backend to rectify broken choice of CC when hard float is in effect. PIC16 may want to see if it could be of use in MakePIC16Libcall, which works unchanged. Patch by Sandeep! llvm-svn: 79033
* *try* to use a better name to describe how common symbols are marked on the ↵Bruno Cardoso Lopes2009-08-141-1/+1
| | | | | | elf object file. llvm-svn: 79029
* Add virtual printMCInst method to AsmPrinter, as a quick way to expose the APIDaniel Dunbar2009-08-141-0/+4
| | | | | | to print one instruction. llvm-svn: 78985
* Indentation change.Evan Cheng2009-08-141-2/+1
| | | | llvm-svn: 78978
* TargetRegistry: Change AsmPrinter constructor to be typed as returning anDaniel Dunbar2009-08-131-0/+1
| | | | | | AsmPrinter instance (instead of just a FunctionPass) llvm-svn: 78962
* Actually privatize a IntegerTypes, and fix a few bugs exposed by this.Owen Anderson2009-08-131-1/+1
| | | | llvm-svn: 78955
* Push LLVMContexts through the IntegerType APIs.Owen Anderson2009-08-1315-107/+145
| | | | llvm-svn: 78948
* Remove hack used to strip unwanted chars from section nameBruno Cardoso Lopes2009-08-134-146/+87
| | | | | | | Use MCSectionELF methods as much as possible, removing some ELFWriter methods which are now unused llvm-svn: 78940
* TargetRegistry: Reorganize AsmPrinter construction so that clients pass in theDaniel Dunbar2009-08-131-1/+2
| | | | | | | | | TargetAsmInfo. This eliminates a dependency on TargetMachine.h from TargetRegistry.h, which technically was a layering violation. - Clients probably can only sensibly pass in the same TargetAsmInfo as the TargetMachine has, but there are only limited clients of this API. llvm-svn: 78928
* Track pristine registers as if they were live-in in the register scavenger.Jakob Stoklund Olesen2009-08-131-14/+12
| | | | llvm-svn: 78913
* Use pristine register info in machine code verifier.Jakob Stoklund Olesen2009-08-131-0/+11
| | | | | | So far these registers are simply tracked as if they were live-in. llvm-svn: 78912
* Add MachineFrameInfo::getPristineRegisters(MBB) method.Jakob Stoklund Olesen2009-08-132-1/+33
| | | | llvm-svn: 78911
* Add callback to allow target to adjust latency of schedule dependency edge.David Goodwin2009-08-132-7/+20
| | | | llvm-svn: 78910
* Change MCSectionELF to represent a section semantically instead ofBruno Cardoso Lopes2009-08-131-16/+20
| | | | | | | syntactically as a string, very similiar to what Chris did with MachO. The parsing support and validation is not introduced yet. llvm-svn: 78890
* Various AsmWriter output cleanups. Use WriteAsOperand instead ofDan Gohman2009-08-131-29/+29
| | | | | | PrintUnmangledNameSafely. llvm-svn: 78878
* Fix counting of Post-RA scheduling stalls. Improve debug output.David Goodwin2009-08-121-14/+25
| | | | llvm-svn: 78843
* Added RegisterCoalescer to required passes for PBQP.Lang Hames2009-08-121-0/+1
| | | | llvm-svn: 78840
* Use WriteAsOperand to print BasicBlock names.Dan Gohman2009-08-121-2/+2
| | | | llvm-svn: 78838
* Fix a few more places to use PadToColumn instead of tabs. And fixDan Gohman2009-08-121-6/+8
| | | | | | | the basic block label printing to check whether a block has a name before printing a comment character and whitespace for it. llvm-svn: 78830
* Use PadToColumn instead of tabs for aligning comments. Fix one placeDan Gohman2009-08-121-63/+122
| | | | | | that emitted unnecessary whitespace outside of VerboseAsm mode. llvm-svn: 78828
* Enhance the InstrStage object to enable the specification of an Itinerary ↵David Goodwin2009-08-121-29/+25
| | | | | | with overlapping stages. The default is to maintain the current behavior that the "next" stage immediately follows the previous one. llvm-svn: 78827
* Add catch block handling to SjLj exception handling.Jim Grosbach2009-08-121-4/+9
| | | | llvm-svn: 78817
* Change TargetAsmInfo to be constructed via TargetRegistry from a Target+TripleChris Lattner2009-08-121-0/+9
| | | | | | | | pair instead of from a virtual method on TargetMachine. This cuts the final ties of TargetAsmInfo to TargetMachine, meaning that MC can now use TargetAsmInfo. llvm-svn: 78802
* This logic was accidentally inverted in r78767.Dan Gohman2009-08-121-3/+3
| | | | llvm-svn: 78773
* Factor out the code for finding an available register for useDan Gohman2009-08-121-54/+70
| | | | | | in breaking an anti-dependence into a separate function. llvm-svn: 78767
* Add contexts to some of the MVT APIs. No functionality change yet, just the ↵Owen Anderson2009-08-1212-265/+319
| | | | | | infrastructure work needed to get the contexts to where they need to be first. llvm-svn: 78759
* Change the asmprinter to print the comment character before theChris Lattner2009-08-111-3/+4
| | | | | | | | | | "inlineasmstart/end" strings so that the contents of the directive are separate from the comment character. This lets elf targets get #APP/#NOAPP for free even if they don't use "#" as the comment character. This also allows hoisting the darwin stuff up to the shared TAI class. llvm-svn: 78737
* Allow a zero cycle stage to reserve/require a FU without advancing the cycle ↵David Goodwin2009-08-111-5/+16
| | | | | | counter. llvm-svn: 78736
* Fix warnings.Owen Anderson2009-08-112-9/+7
| | | | llvm-svn: 78725
* Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson2009-08-1118-842/+843
| | | | | | | | while the latter is capable of representing either a primitive or an extended type. llvm-svn: 78713
* "TAI::JumpTableDirective" is always null for current arm targets, simplifyChris Lattner2009-08-111-14/+12
| | | | | | the code based on this and make it fall through better. llvm-svn: 78708
* Use DEBUG macro for debug output.David Goodwin2009-08-111-11/+7
| | | | llvm-svn: 78694
* Add some debug output.David Goodwin2009-08-112-2/+16
| | | | llvm-svn: 78687
* Tidy #includes.Dan Gohman2009-08-113-2/+1
| | | | llvm-svn: 78677
* Remove unnecessary throw() specifications; LLVM doesn't use exceptions.Dan Gohman2009-08-112-4/+4
| | | | llvm-svn: 78667
* Remove unnecessary casts.Dan Gohman2009-08-111-1/+1
| | | | llvm-svn: 78664
* Add const qualifiers.Dan Gohman2009-08-111-2/+2
| | | | llvm-svn: 78663
* Rebuild RegScavenger::DistanceMap each time it is needed.Jakob Stoklund Olesen2009-08-111-23/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The register scavenger maintains a DistanceMap that maps MI pointers to their distance from the top of the current MBB. The DistanceMap is built incrementally in forward() and in bulk in findFirstUse(). It is used by scavengeRegister() to determine which candidate register has the longest unused interval. Unfortunately the DistanceMap contents can become outdated. The first time scavengeRegister() is called, the DistanceMap is filled to cover the MBB. If then instructions are inserted in the MBB (as they always are following scavengeRegister()), the recorded distances are too short. This causes bad behaviour in the included test case where a register use /after/ the current position is ignored because findFirstUse() thinks is is /before/ the current position. A "using an undefined register" assertion follows promptly. The fix is to build a fresh DistanceMap at the top of scavengeRegister(), and discard it after use. This means that DistanceMap is no longer needed as a RegScavenger member variable, and forward() doesn't need to update it. The fix then discloses issue number two in the same test case: The candidate search in scavengeRegister() finds a CSR that has been saved in the prologue, but is currently unused. It would be both inefficient and wrong to spill such a register in the emergency spill slot. In the present case, the emergency slot restore is placed immediately before the normal epilogue restore, leading to a "Redefining a live register" assertion. Fix number two: When scavengerRegister() stumbles upon an unused register that is overwritten later in the MBB, return that register early. It is important to verify that the register is defined later in the MBB, otherwise it might be an unspilled CSR. llvm-svn: 78650
* Fix a -Asserts warning.Daniel Dunbar2009-08-111-4/+4
| | | | | | | - Since the function is never called in NDEBUG mode, just dropped the DEBUG() uses here. llvm-svn: 78649
* Replace DOUT.David Goodwin2009-08-112-19/+21
| | | | llvm-svn: 78634
* SjLj based exception handling unwinding support. This patch is nasty, brutishJim Grosbach2009-08-116-50/+145
| | | | | | | | | | | | | and short. Well, it's kinda short. Definitely nasty and brutish. The front-end generates the register/unregister calls into the SjLj runtime, call-site indices and landing pad dispatch. The back end fills in the LSDA with the call-site information provided by the front end. Catch blocks are not yet implemented. Built on Darwin and verified no llvm-core "make check" regressions. llvm-svn: 78625
* Modified VNInfo. The "copy" member is now a union which holds the copy for a ↵Lang Hames2009-08-106-31/+31
| | | | | | register interval, or the defining register for a stack interval. Access is via getCopy/setCopy and getReg/setReg. llvm-svn: 78620
* Fix a bug in the DAGCombiner's handling of multiple linkedDan Gohman2009-08-101-3/+8
| | | | | | | | | | | MERGE_VALUES nodes. Replacing the result values with the operands in one MERGE_VALUES node may cause another MERGE_VALUES node be CSE'd with the first one, and bring its uses along, so that the first one isn't dead, as this code expects. Fix this by iterating until the node is really dead. This fixes PR4699. llvm-svn: 78619
* Fix a bug where DAGCombine was producing an illegal ConstantFPDan Gohman2009-08-101-1/+12
| | | | | | | node after legalize, and remove the workaround code from the ARM backend. llvm-svn: 78615
* Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson2009-08-1021-1772/+1772
| | | | | | own struct type. llvm-svn: 78610
* Remove a bunch of debugging code that was slowing PBQP down by 25% or so.Owen Anderson2009-08-101-45/+0
| | | | llvm-svn: 78601
* Start moving TargetLowering away from using full MVTs and towards ↵Owen Anderson2009-08-104-11/+16
| | | | | | SimpleValueType, which will simplify the privatization of IntegerType in the future. llvm-svn: 78584
* Make this comment more closely reflect the code.Dan Gohman2009-08-101-1/+1
| | | | llvm-svn: 78569
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