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path: root/llvm/lib/CodeGen/TailDuplication.cpp
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* [WinEH] Add and use hasEHPadSuccessor instead of getLandingPadSuccessorReid Kleckner2015-09-171-1/+1
| | | | | | | | | | | | getLandingPadSuccessor assumes that each invoke can have at most one EH pad successor, but WinEH invokes can have more than one. Two out of three callers of getLandingPadSuccessor don't use the returned landingpad, so we can make them use this simple predicate instead. Eventually we'll have to circle back and fix SplitKit.cpp so that register allocation works. Baby steps. llvm-svn: 247904
* Save LaneMask with livein registersMatthias Braun2015-09-091-2/+2
| | | | | | | | | | | | | | | | | With subregister liveness enabled we can detect the case where only parts of a register are live in, this is expressed as a 32bit lanemask. The current code only keeps registers in the live-in list and therefore enumerated all subregisters affected by the lanemask. This turned out to be too conservative as the subregister may also cover additional parts of the lanemask which are not live. Expressing a given lanemask by enumerating a minimum set of subregisters is computationally expensive so the best solution is to simply change the live-in list to store the lanemasks as well. This will reduce memory usage for targets using subregister liveness and slightly increase it for other targets Differential Revision: http://reviews.llvm.org/D12442 llvm-svn: 247171
* MachineBasicBlock: Add liveins() method returning an iterator_rangeMatthias Braun2015-08-241-4/+3
| | | | llvm-svn: 245895
* use range-based for loops; NFCISanjay Patel2015-08-111-8/+2
| | | | llvm-svn: 244545
* use range-based for loop; NFCISanjay Patel2015-08-101-5/+5
| | | | llvm-svn: 244531
* remove function names from comments; NFCSanjay Patel2015-08-101-22/+20
| | | | llvm-svn: 244509
* wrap OptSize and MinSize attributes for easier and consistent access (NFCI)Sanjay Patel2015-08-041-0/+1
| | | | | | | | | | | | | | | | | Create wrapper methods in the Function class for the OptimizeForSize and MinSize attributes. We want to hide the logic of "or'ing" them together when optimizing just for size (-Os). Currently, we are not consistent about this and rely on a front-end to always set OptimizeForSize (-Os) if MinSize (-Oz) is on. Thus, there are 18 FIXME changes here that should be added as follow-on patches with regression tests. This patch is NFC-intended: it just replaces existing direct accesses of the attributes by the equivalent wrapper call. Differential Revision: http://reviews.llvm.org/D11734 llvm-svn: 243994
* [MachineBasicBlock] Add getFirstNonDebugInstr to complement getLastNonDebugInstrBenjamin Kramer2015-06-231-5/+2
| | | | | | Use it in CodeGen where applicable. No functionality change intended. llvm-svn: 240414
* Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC)Alexander Kornienko2015-06-231-1/+1
| | | | | | Apparently, the style needs to be agreed upon first. llvm-svn: 240390
* Fixed/added namespace ending comments using clang-tidy. NFCAlexander Kornienko2015-06-191-1/+1
| | | | | | | | | | | | | The patch is generated using this command: tools/clang/tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \ -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \ llvm/lib/ Thanks to Eugene Kosov for the original patch! llvm-svn: 240137
* Clear kill flags in tail duplication.Pete Cooper2015-05-071-0/+3
| | | | | | | | | | | | | | If we duplicate an instruction then we must also clear kill flags on any uses we rewrite. Otherwise we might be killing a register which was used in other BBs. For example, here the entry BB ended up with these instructions, the ADD having been tail duplicated. %vreg24<def> = t2ADDri %vreg10<kill>, 1, pred:14, pred:%noreg, opt:%noreg; GPRnopc:%vreg24 rGPR:%vreg10 %vreg22<def> = COPY %vreg10; GPR:%vreg22 rGPR:%vreg10 The copy here is inserted after the add and so needs vreg10 to be live. llvm-svn: 236782
* CodeGen: Canonicalize access to function attributes, NFCDuncan P. N. Exon Smith2015-02-141-2/+1
| | | | | | | | | | | | | | | | | Canonicalize access to function attributes to use the simpler API. getAttributes().getAttribute(AttributeSet::FunctionIndex, Kind) => getFnAttribute(Kind) getAttributes().hasAttribute(AttributeSet::FunctionIndex, Kind) => hasFnAttribute(Kind) Also, add `Function::getFnStackAlignment()`, and canonicalize: getAttributes().getStackAlignment(AttributeSet::FunctionIndex) => getFnStackAlignment() llvm-svn: 229208
* Have MachineFunction cache a pointer to the subtarget to make lookupsEric Christopher2014-08-051-2/+2
| | | | | | | | | | | shorter/easier and have the DAG use that to do the same lookup. This can be used in the future for TargetMachine based caching lookups from the MachineFunction easily. Update the MIPS subtarget switching machinery to update this pointer at the same time it runs. llvm-svn: 214838
* Changed the liveness tracking in the RegisterScavengerPedro Artigas2014-08-041-3/+1
| | | | | | | | to use register units instead of registers. reviewed by Jakob Stoklund Olesen. llvm-svn: 214798
* Remove the TargetMachine forwards for TargetSubtargetInfo basedEric Christopher2014-08-041-2/+3
| | | | | | information and update all callers. No functional change. llvm-svn: 214781
* Convert more loops to range-based equivalentsAlexey Samsonov2014-04-301-3/+1
| | | | llvm-svn: 207714
* [Modules] Remove potential ODR violations by sinking the DEBUG_TYPEChandler Carruth2014-04-221-1/+2
| | | | | | | | | | | | define below all header includes in the lib/CodeGen/... tree. While the current modules implementation doesn't check for this kind of ODR violation yet, it is likely to grow support for it in the future. It also removes one layer of macro pollution across all the included headers. Other sub-trees will follow. llvm-svn: 206837
* [C++11] More 'nullptr' conversion. In some cases just using a boolean check ↵Craig Topper2014-04-141-11/+11
| | | | | | instead of comparing to nullptr. llvm-svn: 206142
* Disable each MachineFunctionPass for 'optnone' functions, unless thatPaul Robinson2014-03-311-0/+3
| | | | | | | pass normally runs at optimization level None, or is part of the register allocation pipeline. llvm-svn: 205228
* Switch a number of loops in lib/CodeGen over to range-based for-loops, now thatOwen Anderson2014-03-171-5/+3
| | | | | | the MachineRegisterInfo iterators are compatible with it. llvm-svn: 204075
* Phase 2 of the great MachineRegisterInfo cleanup. This time, we're changingOwen Anderson2014-03-131-4/+4
| | | | | | | | | | operator* on the by-operand iterators to return a MachineOperand& rather than a MachineInstr&. At this point they almost behave like normal iterators! Again, this requires making some existing loops more verbose, but should pave the way for the big range-based for-loop cleanups in the future. llvm-svn: 203865
* [C++11] Add 'override' keyword to virtual methods that override their base ↵Craig Topper2014-03-071-2/+2
| | | | | | class. llvm-svn: 203220
* Replace OwningPtr<T> with std::unique_ptr<T>.Ahmed Charles2014-03-061-2/+1
| | | | | | | | | | This compiles with no changes to clang/lld/lldb with MSVC and includes overloads to various functions which are used by those projects and llvm which have OwningPtr's as parameters. This should allow out of tree projects some time to move. There are also no changes to libs/Target, which should help out of tree targets have time to move, if necessary. llvm-svn: 203083
* [C++11] Replace llvm::next and llvm::prior with std::next and std::prev.Benjamin Kramer2014-03-021-3/+3
| | | | | | Remove the old functions. llvm-svn: 202636
* Pass edges weights to MachineBasicBlock::addSuccessor in TailDuplicatePass toAkira Hatanaka2014-02-121-2/+14
| | | | | | | | preserve branch probability information. <rdar://problem/15893208> llvm-svn: 201245
* Remove several unused variables.Rafael Espindola2013-10-011-2/+0
| | | | | | Patch by Alp Toker. llvm-svn: 191757
* Fix build by replacing '>>' with '> >'Tobias Grosser2013-07-141-7/+5
| | | | llvm-svn: 186276
* Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector ↵Craig Topper2013-07-141-13/+13
| | | | | | size. llvm-svn: 186274
* Move all of the header files which are involved in modelling the LLVM IRChandler Carruth2013-01-021-1/+1
| | | | | | | | | | | | | | | | | | | | | into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. llvm-svn: 171366
* Remove the Function::getFnAttributes method in favor of using the AttributeSetBill Wendling2012-12-301-2/+2
| | | | | | | | | directly. This is in preparation for removing the use of the 'Attribute' class as a collection of attributes. That will shift to the AttributeSet class instead. llvm-svn: 171253
* Use MachineInstrBuilder in a few CodeGen passes.Jakob Stoklund Olesen2012-12-201-4/+3
| | | | | | This automatically passes a context pointer to MI->addOperand(). llvm-svn: 170711
* Rename the 'Attributes' class to 'Attribute'. It's going to represent a ↵Bill Wendling2012-12-191-1/+1
| | | | | | single attribute in the future. llvm-svn: 170502
* Use the new script to sort the includes of every file under lib.Chandler Carruth2012-12-031-9/+9
| | | | | | | | | | | | | | | | | Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] llvm-svn: 169131
* Create enums for the different attributes.Bill Wendling2012-10-091-1/+2
| | | | | | | We use the enums to query whether an Attributes object has that attribute. The opaque layer is responsible for knowing where that specific attribute is stored. llvm-svn: 165488
* Remove the `hasFnAttr' method from Function.Bill Wendling2012-09-261-1/+1
| | | | | | | The hasFnAttr method has been replaced by querying the Attributes explicitly. No intended functionality change. llvm-svn: 164725
* Stop leaking RegScavengers from TailDuplication.Benjamin Kramer2012-06-061-3/+4
| | | | llvm-svn: 158069
* Teach taildup to update livein set. rdar://11538365Evan Cheng2012-05-301-0/+25
| | | | llvm-svn: 157663
* Constrain register classes in TailDup.Jakob Stoklund Olesen2012-05-201-3/+5
| | | | | | | When rewriting operands, make sure the new registers have a compatible register class. llvm-svn: 157163
* Make post-ra tail duplication bundle safe. No test case as recent codegenEvan Cheng2012-02-201-3/+6
| | | | | | flow changes have already hidden the bug. rdar://10893812 llvm-svn: 150949
* Codegen pass definition cleanup. No functionality.Andrew Trick2012-02-081-4/+4
| | | | | | | | | | | | | 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: TailDuplicate::PreRegAllocAndrew Trick2012-02-081-6/+7
| | | | llvm-svn: 150091
* Add bundle aware API for querying instruction properties and switch the codeEvan Cheng2011-12-071-5/+5
| | | | | | | | | | | | | | generator to it. For non-bundle instructions, these behave exactly the same as the MC layer API. For properties like mayLoad / mayStore, look into the bundle and if any of the bundled instructions has the property it would return true. For properties like isPredicable, only return true if *all* of the bundled instructions have the property. For properties like canFoldAsLoad, isCompare, conservatively return false for bundles. llvm-svn: 146026
* First chunk of MachineInstr bundle support.Evan Cheng2011-12-061-2/+1
| | | | | | | | | 1. Added opcode BUNDLE 2. Taught MachineInstr class to deal with bundled MIs 3. Changed MachineBasicBlock iterator to skip over bundled MIs; added an iterator to walk all the MIs 4. Taught MachineBasicBlock methods about bundled MIs llvm-svn: 145975
* Trim an unneeded header.Jakob Stoklund Olesen2011-08-091-0/+1
| | | | llvm-svn: 137184
* Move most of the pre BB code to TailDuplicateAndUpdate. Change theRafael Espindola2011-07-041-112/+125
| | | | | | HasIndirectbr variable to be just that. No functionality change. llvm-svn: 134371
* Reduce indentation and fix the count of how many PHIs we have inserted.Rafael Espindola2011-07-041-75/+80
| | | | llvm-svn: 134370
* - Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo andEvan Cheng2011-06-281-2/+2
| | | | | | | | sink them into MC layer. - Added MCInstrInfo, which captures the tablegen generated static data. Chang TargetInstrInfo so it's based off MCInstrInfo. llvm-svn: 134021
* SimplifyRafael Espindola2011-06-241-14/+6
| | | | llvm-svn: 133798
* Now that bb with phis are not considered simple, duplicate them even ifRafael Espindola2011-06-241-12/+18
| | | | | | we cannot duplicate to every predecessor. llvm-svn: 133797
* Simplify now that blocks with phis are not considered simple.Rafael Espindola2011-06-241-15/+0
| | | | llvm-svn: 133793
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