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* Do not generate special entries in the dwarf ehDuncan Sands2008-03-141-6/+2
| | | | | | | table for nounwind calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48373 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR2138. Apparently any modification to a std::multimap (including remove ↵Evan Cheng2008-03-141-2/+8
| | | | | | entries for a different key) can invalidate multimap iterators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48371 91177308-0d34-0410-b5e6-96231b3b80d8
* this was removed from the Unix side.Chris Lattner2008-03-141-5/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48370 91177308-0d34-0410-b5e6-96231b3b80d8
* Update comments; getPassName no longer uses RTTI.Dan Gohman2008-03-141-2/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48369 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement the real calling convention for ppc32 Altivec:Dale Johannesen2008-03-141-21/+118
| | | | | | | | | vectors go at the end of the memory area, after all non-vector parameters. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48364 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some 80 col violations.Evan Cheng2008-03-141-22/+22
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48361 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a number of encoding bugs. SSE 4.1 instructions MPSADBWrri, PINSRDrr, ↵Evan Cheng2008-03-143-32/+32
| | | | | | etc. have 8-bits immediate field (ImmT == Imm8). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48360 91177308-0d34-0410-b5e6-96231b3b80d8
* Add debugging stuff.Evan Cheng2008-03-141-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48359 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an issue that is preventing instcombine from doing a simplification.Chris Lattner2008-03-141-5/+43
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48356 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify using getIntPtrConstant.Duncan Sands2008-03-141-5/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48355 91177308-0d34-0410-b5e6-96231b3b80d8
* The inst combining of inttoptr into GEP with one index was using the bit size ofBill Wendling2008-03-141-1/+1
| | | | | | | | | the type instead of the byte size. This was causing troublesome mis-compilations. True to form, this took 2 days to find and is a one-line fix. :-P git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48354 91177308-0d34-0410-b5e6-96231b3b80d8
* Tabs -> spacesNate Begeman2008-03-141-14/+23
| | | | | | | | Use getIntPtrConstant in a couple places to shorten stuff up Handle splitting vector shuffles with undefs in the mask git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48351 91177308-0d34-0410-b5e6-96231b3b80d8
* Livein copy scheduling fixes: do not coalesce physical register copies, ↵Evan Cheng2008-03-141-112/+42
| | | | | | correctly determine the safe location to insert the copies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48348 91177308-0d34-0410-b5e6-96231b3b80d8
* Use SDTNone instead of duplicating it.Dan Gohman2008-03-132-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48346 91177308-0d34-0410-b5e6-96231b3b80d8
* More APInt-ification.Dan Gohman2008-03-135-67/+77
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48344 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in GVN that Duncan noticed, where we potentially need to insert a Owen Anderson2008-03-131-1/+5
| | | | | | | pointer bitcast when performing return slot optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48343 91177308-0d34-0410-b5e6-96231b3b80d8
* Undo tweak. It had no obvious benefit.Evan Cheng2008-03-131-19/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48341 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused GetAddressOfSymbol()Devang Patel2008-03-131-6/+1
| | | | | | | | Thanks Daniel Dunbar! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48340 91177308-0d34-0410-b5e6-96231b3b80d8
* Typo.Evan Cheng2008-03-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48337 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to sink 3-address instruction if convertToThreeAddress created ↵Evan Cheng2008-03-131-1/+6
| | | | | | more than one instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48336 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove an unused command line option.Evan Cheng2008-03-131-9/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48334 91177308-0d34-0410-b5e6-96231b3b80d8
* TwoAddressInstructionPass enhancement. After it converts a two address ↵Evan Cheng2008-03-131-13/+131
| | | | | | instruction into a 3-address one, sink it past the instruction that kills the read-mod-write register if its definition is used past the kill. This reduces the number of live register by one. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48333 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of a pseudo instruction and replace it with subreg based operation ↵Christopher Lamb2008-03-139-67/+50
| | | | | | | | | | on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects. Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48329 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix Path::GetMainExecutable on cygwin, patch by Sam Bishop.Chris Lattner2008-03-131-1/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48328 91177308-0d34-0410-b5e6-96231b3b80d8
* remove extraneous namespace qualifier, PR2142Chris Lattner2008-03-131-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48327 91177308-0d34-0410-b5e6-96231b3b80d8
* move a bunch of trivial methods to be inline.Chris Lattner2008-03-132-110/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48326 91177308-0d34-0410-b5e6-96231b3b80d8
* Various improvements suggested by DuncanChris Lattner2008-03-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48325 91177308-0d34-0410-b5e6-96231b3b80d8
* Update -mem2reg to use succ_iterator instead of iterating across TerminatorInstNick Lewycky2008-03-131-13/+10
| | | | | | | successors. This makes it support nounwind. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48320 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove unused options.Evan Cheng2008-03-131-13/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48319 91177308-0d34-0410-b5e6-96231b3b80d8
* Eliminate a few unnecessary uses of dynamic_cast.Dan Gohman2008-03-131-7/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48318 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo.Dan Gohman2008-03-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48317 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't redundantly clear std::vector members in destructors.Dan Gohman2008-03-131-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48316 91177308-0d34-0410-b5e6-96231b3b80d8
* Change PMTopLevelManager's PassManagers vector element type fromDan Gohman2008-03-131-12/+13
| | | | | | | | | | | | Pass* to PMDataManager*. PMDataManager is more specific than Pass, so this more accurately describes the objects that are being stored. This eliminates the need for several dynamic_casts to PMDataManager*. It does introduce one dynamic_cast though, in dumpPasses(). Give this one a comment describing why a dynamic_cast is being used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48315 91177308-0d34-0410-b5e6-96231b3b80d8
* Change PMStack::push to accept a PMDataManager* instead ofDan Gohman2008-03-131-2/+1
| | | | | | | | a Pass*. PMDataManager* is what it actually holds, so this makes it clearer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48314 91177308-0d34-0410-b5e6-96231b3b80d8
* Refactor some code out of MachineSink into a MachineInstr query.Evan Cheng2008-03-132-29/+38
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48311 91177308-0d34-0410-b5e6-96231b3b80d8
* Do not promote float params to double in varargsDale Johannesen2008-03-121-6/+0
| | | | | | | | | | | calls here. This was done earlier for params in the varargs part of the params; any float params that survive to here are in the non-varargs part, and must not be promoted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48310 91177308-0d34-0410-b5e6-96231b3b80d8
* Experimental scheduler change to schedule / coalesce the copies added for ↵Evan Cheng2008-03-121-23/+181
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | function livein's. Take 2008-03-10-RegAllocInfLoop.ll, the schedule looks like this after these copies are inserted: entry: 0x12049d0, LLVM BB @0x1201fd0, ID#0: Live Ins: %EAX %EDX %ECX %reg1031<def> = MOVPC32r 0 %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def> %reg1028<def> = MOV32rr %EAX %reg1029<def> = MOV32rr %EDX %reg1030<def> = MOV32rr %ECX %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x1201910 + 0] %reg1025<def> = MOV32rr %reg1029 %reg1026<def> = MOV32rr %reg1030 %reg1024<def> = MOV32rr %reg1028 The copies unnecessarily increase register pressure and it will end up requiring a physical register to be spilled. With -schedule-livein-copies: entry: 0x12049d0, LLVM BB @0x1201fa0, ID#0: Live Ins: %EAX %EDX %ECX %reg1031<def> = MOVPC32r 0 %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def> %reg1024<def> = MOV32rr %EAX %reg1025<def> = MOV32rr %EDX %reg1026<def> = MOV32rr %ECX %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x12018e0 + 0] Much better! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48307 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial soft-float support for LegalizeTypes. I rewroteDuncan Sands2008-03-126-34/+248
| | | | | | | | | | | | | | | | | | | | | | the fcopysign expansion from LegalizeDAG to get rid of what seems to be a bug: the use of sign extension means that when copying the sign bit from an f32 to an f64, the upper 32 bits of the f64 (now an i64) are set, not just the top bit... I also generalized it to work for any sized floating point types, and removed the bogosity: SDOperand Mask1 = (SrcVT == MVT::f64) ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); (here SrcNVT is an integer with the same size as SrcVT). As far as I can see this takes a 1 << 63, converts to a double, converts that to a floating point constant then converts that to an integer constant, ending up with... 1 << 63 as an integer constant! So I just generate this integer constant directly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48305 91177308-0d34-0410-b5e6-96231b3b80d8
* Change VirtRegMap's dump to dump to cerr, not DOUT, so that itDan Gohman2008-03-121-1/+1
| | | | | | | | can be called from within a debuger without having -debug specified on the command-line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48298 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typos in comments.Dan Gohman2008-03-121-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48297 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Duncan Sands2008-03-121-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48295 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to extract an i32 from an f64. ThisDuncan Sands2008-03-122-12/+22
| | | | | | | | | | | | | getCopyToParts problem was noticed by the new LegalizeTypes infrastructure. In order to avoid this kind of thing in the future I've added a check that EXTRACT_ELEMENT is only used with integers. Once LegalizeTypes is up and running most likely BUILD_PAIR and EXTRACT_ELEMENT can be removed, in favour of using apints instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48294 91177308-0d34-0410-b5e6-96231b3b80d8
* Reimplement the parameter attributes support, phase #1. hilights:Chris Lattner2008-03-1223-1005/+857
| | | | | | | | | | | | | | | | | | | | | | | | | 1. There is now a "PAListPtr" class, which is a smart pointer around the underlying uniqued parameter attribute list object, and manages its refcount. It is now impossible to mess up the refcount. 2. PAListPtr is now the main interface to the underlying object, and the underlying object is now completely opaque. 3. Implementation details like SmallVector and FoldingSet are now no longer part of the interface. 4. You can create a PAListPtr with an arbitrary sequence of ParamAttrsWithIndex's, no need to make a SmallVector of a specific size (you can just use an array or scalar or vector if you wish). 5. All the client code that had to check for a null pointer before dereferencing the pointer is simplified to just access the PAListPtr directly. 6. The interfaces for adding attrs to a list and removing them is a bit simpler. Phase #2 will rename some stuff (e.g. PAListPtr) and do other less invasive changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48289 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve the return slot optimization to be both more aggressive (not limited ↵Owen Anderson2008-03-121-93/+109
| | | | | | | | | | to sret parameters), and safer (when the passed pointer might be invalid). Thanks to Duncan and Chris for the idea behind this, and extra thanks to Duncan for helping me work out the trap-safety. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48280 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up my own mess.Evan Cheng2008-03-123-7/+15
| | | | | | | X86 lowering normalize vector 0 to v4i32. However DAGCombine can fold (sub x, x) -> 0 after legalization. It can create a zero vector of a type that's not expected (e.g. v8i16). We don't want to disable the optimization since leaving a (sub x, x) is really bad. Add isel patterns for other types of vector 0 to ensure correctness. It's highly unlikely to happen other than in bugpoint reduced test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48279 91177308-0d34-0410-b5e6-96231b3b80d8
* We also need to collect the VN IDs for the PHI instructions for later updating.Owen Anderson2008-03-121-1/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48278 91177308-0d34-0410-b5e6-96231b3b80d8
* When we're determining what registers to coallesce, track the VNInfo IDs for ↵Owen Anderson2008-03-121-16/+32
| | | | | | | | | the definitions that feed the PHI instructions. We'll need these IDs in order to update LiveIntervals properly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48277 91177308-0d34-0410-b5e6-96231b3b80d8
* when the bitcode reader is referencing a paramattr, make sure to bump its ↵Chris Lattner2008-03-121-1/+12
| | | | | | refcount. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48276 91177308-0d34-0410-b5e6-96231b3b80d8
* Total brain cramp.Evan Cheng2008-03-121-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48274 91177308-0d34-0410-b5e6-96231b3b80d8
* This is a simple fix for getting error messages from dlerror inChris Lattner2008-03-121-1/+2
| | | | | | | | | | LoadLibraryPermanently. The current code modifies the value of a pointer that is passed by value, so the caller never gets the message. Patch by Julien Lerouge! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48270 91177308-0d34-0410-b5e6-96231b3b80d8
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