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* Remove the local register allocator.Jakob Stoklund Olesen2010-06-152-7/+0
| | | | | | Please use the fast allocator instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106051 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0Benjamin Kramer2010-06-151-0/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106047 91177308-0d34-0410-b5e6-96231b3b80d8
* disable SmallVectorImpl's copy constructor. This prevents a classChris Lattner2010-06-151-0/+2
| | | | | | | of base class slicing bugs reported on irc git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106028 91177308-0d34-0410-b5e6-96231b3b80d8
* Add CoalescerPair helper class.Jakob Stoklund Olesen2010-06-151-0/+84
| | | | | | | | | | | | | | | | | | | | Given a copy instruction, CoalescerPair can determine which registers to coalesce in order to eliminate the copy. It deals with all the subreg fun to determine a tuple (DstReg, SrcReg, SubIdx) such that: - SrcReg is a virtual register that will disappear after coalescing. - DstReg is a virtual or physical register whose live range will be extended. - SubIdx is 0 when DstReg is a physical register. - SrcReg can be joined with DstReg:SubIdx. CoalescerPair::isCoalescable() determines if another copy instruction is compatible with the same tuple. This fixes some NEON miscompilations where shuffles are getting coalesced as if they were copies. The CoalescerPair class will replace a lot of the spaghetti logic in JoinCopy later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105997 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing include to unbreak the build.Sean Hunt2010-06-141-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105971 91177308-0d34-0410-b5e6-96231b3b80d8
* - Do away with SimpleHazardRecognizer.h. It's not used and offers little value.Evan Cheng2010-06-141-0/+93
| | | | | | | - Rename ExactHazardRecognizer to PostRAHazardRecognizer and move its header to include to allow targets to extend it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105959 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a comment typo.Bob Wilson2010-06-141-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105944 91177308-0d34-0410-b5e6-96231b3b80d8
* Let SmallVector take advantage of LiveRange's podness.Benjamin Kramer2010-06-131-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105913 91177308-0d34-0410-b5e6-96231b3b80d8
* declare a class with 'class' instead of struct to avoid tag mismatch Chris Lattner2010-06-121-1/+2
| | | | | | | warnings, and don't shift by a bool. Patch by Rizky Herucakra! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105886 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow target to provide its own hazard recognizer to post-ra scheduler.Evan Cheng2010-06-121-0/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105862 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for nested functions/classes in debug output. (Again.) Radar 7424645.Stuart Hastings2010-06-111-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105828 91177308-0d34-0410-b5e6-96231b3b80d8
* Define ContextualFoldingSet, which stores a context parameter to pass down toJohn McCall2010-06-111-0/+75
| | | | | | | | | | | | | | the Profile method. Currently this only works with the default FoldingSetTraits implementation. The point of this is to allow nodes to not store context values which are only used during profiling. A better solution would thread this value through the folding algorithms, but then those would need to be (1) templated and (2) non-opaque. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105819 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid many "variable 'Sub' set but not used [-Wunused-but-set-variable]" ↵Duncan Sands2010-06-101-3/+2
| | | | | | | | | | | warnings with gcc-4.6. The warning is wrong, since Sub *is* used (perhaps gcc is confused because the use of Sub is constant folded away?), but since it is trivial to avoid, and massively reduces the amount of warning spew, just workaround the wrong warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105788 91177308-0d34-0410-b5e6-96231b3b80d8
* Add includes to get ptrdiff_t. This is needed by gcc-4.6 which hasDuncan Sands2010-06-104-0/+4
| | | | | | | | done some more header trimming, resulting in cstdef being included by less header files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105786 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow target to place 2-address pass inserted copies in better spots. Thumb2 ↵Evan Cheng2010-06-091-0/+8
| | | | | | will use this to try to avoid breaking up IT blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105745 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 105540, 105542, 105544, 105546, and 105548 to unbreak bootstrapping.Evan Cheng2010-06-092-39/+26
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105740 91177308-0d34-0410-b5e6-96231b3b80d8
* - Fix description of SUBREG_TO_REG. It's not going to generate a zext. But itBill Wendling2010-06-091-10/+9
| | | | | | | | | is used to assert that an *implicit* zext is performed. - Fix grammar-o in INSERT_SUBREG. (required reformatting) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105735 91177308-0d34-0410-b5e6-96231b3b80d8
* Pulled CodeMetrics out of InlineCost.h and made it a bit more general, so it ↵Kenneth Uildriks2010-06-092-40/+77
| | | | | | can be reused from PartialSpecializationCost git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105725 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a gcc warning:Rafael Espindola2010-06-091-0/+2
| | | | | | | | | 'class llvm::DAGDeltaAlgorithm' has virtual functions and accessible non-virtual destructor Not sure if this is the best solution, but this class has state and some of the classes that inherit from it also do, so it looks appropriate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105675 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r105521, this time appending "LLU" to 64 bitBruno Cardoso Lopes2010-06-082-2/+4
| | | | | | | immediates to avoid breaking the build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105652 91177308-0d34-0410-b5e6-96231b3b80d8
* ADT: Add DAGDeltaAlgorithm, which is a DAG minimization algorithm built on ↵Daniel Dunbar2010-06-081-0/+73
| | | | | | | | top of the standard 'delta debugging' algorithm. - This can give substantial speedups in the delta process for inputs we can construct dependency information for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105612 91177308-0d34-0410-b5e6-96231b3b80d8
* Use realloc instead of malloc+memcpy when growing a POD SmallVector. A smartBenjamin Kramer2010-06-081-3/+4
| | | | | | | | realloc implementation can try to expand the allocated memory block in-place, avoiding the copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105605 91177308-0d34-0410-b5e6-96231b3b80d8
* The FoldingSet hash data includes pointer values, so it isn'tDan Gohman2010-06-072-29/+39
| | | | | | | | determinstic. Instead, give SCEV objects an arbitrary sequence number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105548 91177308-0d34-0410-b5e6-96231b3b80d8
* Optimize ScalarEvolution's SCEVComplexityCompare predicate: don't goDan Gohman2010-06-071-0/+3
| | | | | | | | | | | | scrounging through SCEVUnknown contents and SCEVNAryExpr operands; instead just do a simple deterministic comparison of the precomputed hash data. Also, since this is more precise, it eliminates the need for the slow N^2 duplicate detection code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105540 91177308-0d34-0410-b5e6-96231b3b80d8
* Create new accessors to get arguments for call/invoke instructions. It breaksBill Wendling2010-06-071-0/+6
| | | | | | | | | encapsulation to force the users of these classes to know about the internal data structure of the Operands structure. It also can lead to errors, like in the MSIL writer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105539 91177308-0d34-0410-b5e6-96231b3b80d8
* revert r105521, which is breaking the buildbots with stuff like this:Chris Lattner2010-06-052-4/+2
| | | | | | | | | | | | | | | | In file included from X86InstrInfo.cpp:16: X86GenInstrInfo.inc:2789: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2790: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2792: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2793: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2808: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2809: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2816: error: integer constant is too large for 'long' type X86GenInstrInfo.inc:2817: error: integer constant is too large for 'long' type git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105524 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial AVX support for some instructions. No patterns matchedBruno Cardoso Lopes2010-06-052-2/+4
| | | | | | | yet, only assembly encoding support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105521 91177308-0d34-0410-b5e6-96231b3b80d8
* Make MachineFunctionPass::createPrinterPass private, as no subclassesDan Gohman2010-06-051-4/+5
| | | | | | | should be calling it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105517 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 105492 & 105493 due to a testcase regression. Radar 7424645.Stuart Hastings2010-06-051-5/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105511 91177308-0d34-0410-b5e6-96231b3b80d8
* LSR needs to remember inserted instructions even in postinc mode, becauseDan Gohman2010-06-051-1/+6
| | | | | | | | there could be multiple subexpressions within a single expansion which require insert point adjustment. This fixes PR7306. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105510 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement operator== and operator!= for SetVector.Dan Gohman2010-06-051-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105508 91177308-0d34-0410-b5e6-96231b3b80d8
* Support for nested functions/classes in debug output. Radar 7424645.Stuart Hastings2010-06-041-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105492 91177308-0d34-0410-b5e6-96231b3b80d8
* Slightly change the meaning of the reMaterialize target hook when the originalJakob Stoklund Olesen2010-06-022-2/+10
| | | | | | | | | | | | | | | | | | | | | | | instruction defines subregisters. Any existing subreg indices on the original instruction are preserved or composed with the new subreg index. Also substitute multiple operands mentioning the original register by using the new MachineInstr::substituteRegister() function. This is necessary because there will soon be <imp-def> operands added to non read-modify-write partial definitions. This instruction: %reg1234:foo = FLAP %reg1234<imp-def> will reMaterialize(%reg3333, bar) like this: %reg3333:bar-foo = FLAP %reg333:bar<imp-def> Finally, replace the TargetRegisterInfo pointer argument with a reference to indicate that it cannot be NULL. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105358 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the TargetRegisterClass member from CalleeSavedInfoRafael Espindola2010-06-021-4/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105344 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename canCombinedSubRegIndex method to something more grammatically correctBob Wilson2010-06-021-8/+9
| | | | | | | and tidy up the comment describing it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105339 91177308-0d34-0410-b5e6-96231b3b80d8
* remove trailing whitespaceJim Grosbach2010-06-021-75/+75
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105333 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove uses of getCalleeSavedRegClasses from outside theRafael Espindola2010-06-021-5/+4
| | | | | | | backends and removes the virtual declaration. With that out of the way I should be able to cleanup one backend at a time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105321 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't call flush() at a library level which isn't checking for errorsDan Gohman2010-06-011-1/+1
| | | | | | | and doesn't know where the output is going. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105274 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a typo in a comment.Dan Gohman2010-06-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105272 91177308-0d34-0410-b5e6-96231b3b80d8
* SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValueDan Gohman2010-05-291-4/+1
| | | | | | | | shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set doesn't needs its EnableFastISel argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105101 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo.Nick Lewycky2010-05-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105096 91177308-0d34-0410-b5e6-96231b3b80d8
* Split the logic behind CastInst::isNoopCast into a separate static function,Dan Gohman2010-05-281-0/+8
| | | | | | | as is done with most other cast opcode predicates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105008 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a comment; vectors are not a special case here.Dan Gohman2010-05-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105006 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a TargetRegisterInfo::composeSubRegIndices hook with a defaultJakob Stoklund Olesen2010-05-282-1/+32
| | | | | | | | | | implementation that is correct for most targets. Tablegen will override where needed. Add MachineOperand::subst{Virt,Phys}Reg methods that correctly handle existing subreg indices when sustituting registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104985 91177308-0d34-0410-b5e6-96231b3b80d8
* Move FindAvailableLoadedValue isSafeToLoadUnconditionally out ofDan Gohman2010-05-283-29/+51
| | | | | | | | lib/Transforms/Utils and into lib/Analysis so that Analysis passes can use them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104949 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a comment.Dan Gohman2010-05-281-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104947 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a -regalloc=default option that chooses a register allocator based on the -OJakob Stoklund Olesen2010-05-271-2/+3
| | | | | | | | | optimization level. This only really affects llc for now because both the llvm-gcc and clang front ends override the default register allocator. I intend to remove that code later. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104904 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove ancient prototype.Jakob Stoklund Olesen2010-05-271-4/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104903 91177308-0d34-0410-b5e6-96231b3b80d8
* back out 104862/104869. Can reuse stacksave after all. Very cool.Jim Grosbach2010-05-272-6/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104897 91177308-0d34-0410-b5e6-96231b3b80d8
* Make ParseIRFile and getLazyIRFileModule incoporate the underlyingDan Gohman2010-05-271-2/+4
| | | | | | | | error message string into their own error message string, so that the information isn't lost. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104887 91177308-0d34-0410-b5e6-96231b3b80d8
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