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* Remove <iostream>.Bill Wendling2009-08-151-20/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79146 91177308-0d34-0410-b5e6-96231b3b80d8
* Unbreak build. Evan, please make sure my changes are correct.Benjamin Kramer2009-08-153-6/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79133 91177308-0d34-0410-b5e6-96231b3b80d8
* Refine EarlyClobber assert in register scavenger.Jakob Stoklund Olesen2009-08-151-1/+1
| | | | | | | | | | | | | | It is legal for an inline asm operand to use an earlyclobber register if the use operand is tied to the earlyclobber operand. The issue is discussed here: http://gcc.gnu.org/ml/gcc/1999-04n/msg00431.html We should perhaps let only the machine code verifier worry about these finer details. EarlyClobber operands are not really interesting to the scavenger. This fixes PR4528 for the third time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79122 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't setCalleeSavedInfoValid() until spills are interted.Jakob Stoklund Olesen2009-08-151-2/+2
| | | | | | | | | | In a naked function, the flag is never set and getPristineRegs() returns an empty list. That means naked functions are able to clobber callee saved registers, but that is the whole point of naked functions. This fixes PR4716. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79096 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow double defs in the machine code verifier after the addPreRegAlloc passes.Jakob Stoklund Olesen2009-08-151-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79095 91177308-0d34-0410-b5e6-96231b3b80d8
* Update LocalRewriter::DistanceMap when inserting stack loads.Jakob Stoklund Olesen2009-08-151-0/+3
| | | | | | | | In the included test case, a stack load was not included in DistanceMap. That caused TransferDeadness to ignore the instruction, leading to a scavenger assert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79090 91177308-0d34-0410-b5e6-96231b3b80d8
* 80 col violations.Evan Cheng2009-08-151-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79087 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify this code to not depend as much on CurMBB.Dan Gohman2009-08-151-16/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79068 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not completely skip subrange info for a zero sized array.Devang Patel2009-08-141-6/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79044 91177308-0d34-0410-b5e6-96231b3b80d8
* 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! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79033 91177308-0d34-0410-b5e6-96231b3b80d8
* *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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79029 91177308-0d34-0410-b5e6-96231b3b80d8
* Add virtual printMCInst method to AsmPrinter, as a quick way to expose the APIDaniel Dunbar2009-08-141-0/+4
| | | | | | | to print one instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78985 91177308-0d34-0410-b5e6-96231b3b80d8
* Indentation change.Evan Cheng2009-08-141-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78978 91177308-0d34-0410-b5e6-96231b3b80d8
* TargetRegistry: Change AsmPrinter constructor to be typed as returning anDaniel Dunbar2009-08-131-0/+1
| | | | | | | AsmPrinter instance (instead of just a FunctionPass) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78962 91177308-0d34-0410-b5e6-96231b3b80d8
* Actually privatize a IntegerTypes, and fix a few bugs exposed by this.Owen Anderson2009-08-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78955 91177308-0d34-0410-b5e6-96231b3b80d8
* Push LLVMContexts through the IntegerType APIs.Owen Anderson2009-08-1315-107/+145
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
* 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 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78940 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78928 91177308-0d34-0410-b5e6-96231b3b80d8
* Track pristine registers as if they were live-in in the register scavenger.Jakob Stoklund Olesen2009-08-131-14/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78913 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78912 91177308-0d34-0410-b5e6-96231b3b80d8
* Add MachineFrameInfo::getPristineRegisters(MBB) method.Jakob Stoklund Olesen2009-08-132-1/+33
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78911 91177308-0d34-0410-b5e6-96231b3b80d8
* Add callback to allow target to adjust latency of schedule dependency edge.David Goodwin2009-08-132-7/+20
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78910 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78890 91177308-0d34-0410-b5e6-96231b3b80d8
* Various AsmWriter output cleanups. Use WriteAsOperand instead ofDan Gohman2009-08-131-29/+29
| | | | | | | PrintUnmangledNameSafely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78878 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix counting of Post-RA scheduling stalls. Improve debug output.David Goodwin2009-08-121-14/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78843 91177308-0d34-0410-b5e6-96231b3b80d8
* Added RegisterCoalescer to required passes for PBQP.Lang Hames2009-08-121-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78840 91177308-0d34-0410-b5e6-96231b3b80d8
* Use WriteAsOperand to print BasicBlock names.Dan Gohman2009-08-121-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78838 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78830 91177308-0d34-0410-b5e6-96231b3b80d8
* Use PadToColumn instead of tabs for aligning comments. Fix one placeDan Gohman2009-08-121-63/+122
| | | | | | | that emitted unnecessary whitespace outside of VerboseAsm mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78828 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78827 91177308-0d34-0410-b5e6-96231b3b80d8
* Add catch block handling to SjLj exception handling.Jim Grosbach2009-08-121-4/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78817 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78802 91177308-0d34-0410-b5e6-96231b3b80d8
* This logic was accidentally inverted in r78767.Dan Gohman2009-08-121-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78773 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78767 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78759 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78737 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow a zero cycle stage to reserve/require a FU without advancing the cycle ↵David Goodwin2009-08-111-5/+16
| | | | | | counter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78736 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix warnings.Owen Anderson2009-08-112-9/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78725 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
* "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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78708 91177308-0d34-0410-b5e6-96231b3b80d8
* Use DEBUG macro for debug output.David Goodwin2009-08-111-11/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78694 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some debug output.David Goodwin2009-08-112-2/+16
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* Tidy #includes.Dan Gohman2009-08-113-2/+1
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* Remove unnecessary throw() specifications; LLVM doesn't use exceptions.Dan Gohman2009-08-112-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78667 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unnecessary casts.Dan Gohman2009-08-111-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78664 91177308-0d34-0410-b5e6-96231b3b80d8
* Add const qualifiers.Dan Gohman2009-08-111-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78663 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78650 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78649 91177308-0d34-0410-b5e6-96231b3b80d8
* Replace DOUT.David Goodwin2009-08-112-19/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78634 91177308-0d34-0410-b5e6-96231b3b80d8
* 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. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
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