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* First step of huge frame-related refactoring: move emit{Prologue,Epilogue} ↵Anton Korobeynikov2010-11-152-13/+15
| | | | | | out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119097 91177308-0d34-0410-b5e6-96231b3b80d8
* move the pic base symbol stuff up to MachineFunctionChris Lattner2010-11-141-0/+4
| | | | | | | | since it is trivial and will be shared between ppc and x86. This substantially simplifies the X86 backend also. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119089 91177308-0d34-0410-b5e6-96231b3b80d8
* reimplement ppc asmprinter "toc" handling to use a VariantKindChris Lattner2010-11-141-1/+3
| | | | | | | | | on the operand, required for .o file writing and fixing the PowerPC/mult-alt-generic-powerpc64.ll failure with the new instprinter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119087 91177308-0d34-0410-b5e6-96231b3b80d8
* If dom tree information is available, make it possible to passDuncan Sands2010-11-142-3/+6
| | | | | | | it to get better phi node simplification. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119055 91177308-0d34-0410-b5e6-96231b3b80d8
* Strip trailing whitespace.Duncan Sands2010-11-141-12/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119038 91177308-0d34-0410-b5e6-96231b3b80d8
* MC: Simplify Mach-O and ELF object writer implementations.Daniel Dunbar2010-11-133-103/+8
| | | | | | - What was I thinking????? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118992 91177308-0d34-0410-b5e6-96231b3b80d8
* Parse and record the gnu_unique_object type.Rafael Espindola2010-11-131-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118980 91177308-0d34-0410-b5e6-96231b3b80d8
* Trailing whitespace.Jim Grosbach2010-11-131-18/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118978 91177308-0d34-0410-b5e6-96231b3b80d8
* Parse and remember discriminators in .loc line. I try to output them withRafael Espindola2010-11-132-3/+16
| | | | | | | another patch. This lets us parse a bit more of the gcc 4.5 output. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118975 91177308-0d34-0410-b5e6-96231b3b80d8
* JIT: More nitty style tweakage, aka territory marking.Daniel Dunbar2010-11-131-56/+67
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118973 91177308-0d34-0410-b5e6-96231b3b80d8
* report_fatal_error: Simplify a possible ambiguity.Daniel Dunbar2010-11-131-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118972 91177308-0d34-0410-b5e6-96231b3b80d8
* More style nittiness.Daniel Dunbar2010-11-131-8/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118971 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up some doxyments/style.Daniel Dunbar2010-11-131-23/+27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118970 91177308-0d34-0410-b5e6-96231b3b80d8
* add operand iterator apis to MachineInstr, patch by ether zhhb.Chris Lattner2010-11-121-1/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118862 91177308-0d34-0410-b5e6-96231b3b80d8
* Add helper functions for computing the Location of load, store,Dan Gohman2010-11-111-0/+6
| | | | | | | and vaarg instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118845 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out Instruction::isSafeToSpeculativelyExecute's code forDan Gohman2010-11-111-0/+4
| | | | | | | | | | | | | testing for dereferenceable pointers into a helper function, isDereferenceablePointer. Teach it how to reason about GEPs with simple non-zero indices. Also eliminate ArgumentPromtion's IsAlwaysValidPointer, which didn't check for weak externals or out of range gep indices. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118840 91177308-0d34-0410-b5e6-96231b3b80d8
* Initial comdat implementation.Rafael Espindola2010-11-113-4/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
* Add comments.Dan Gohman2010-11-111-5/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118799 91177308-0d34-0410-b5e6-96231b3b80d8
* Add brief doxygen comments for AliasResult enum values.Dan Gohman2010-11-111-1/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118792 91177308-0d34-0410-b5e6-96231b3b80d8
* Set NonLocalDepInfo's Size field to UnknownSize when invalidatingDan Gohman2010-11-111-1/+1
| | | | | | | it, so that it doesn't appear to be a known size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748 91177308-0d34-0410-b5e6-96231b3b80d8
* Insert two blank SlotIndexes between basic blocks instead of just one.Jakob Stoklund Olesen2010-11-111-0/+2
| | | | | | | | | | | | | | | | | This is the first small step towards using closed intervals for liveness instead of the half-open intervals we're using now. We want to be able to distinguish between a SlotIndex that represents a variable being live-out of a basic block, and an index representing a variable live-in to its successor. That requires two separate indexes between blocks. One for live-outs and one for live-ins. With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays greater than any instructions inserted at the end of MBB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118747 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete unused function.Jakob Stoklund Olesen2010-11-101-23/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118743 91177308-0d34-0410-b5e6-96231b3b80d8
* Take care of special characters while creating named MDNode name to hold ↵Devang Patel2010-11-101-0/+9
| | | | | | | | | function specific local variable's info. This fixes radar 8653152. I am checking in testcase as a separate check-in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
* Enhance GVN to do more precise alias queries for non-local memoryDan Gohman2010-11-102-10/+11
| | | | | | | | | | | | | | | | references. For example, this allows gvn to eliminate the load in this example: void foo(int n, int* p, int *q) { p[0] = 0; p[1] = 1; if (n) { *q = p[0]; } } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
* RABasic is nearly functionally complete. There are a few remainingAndrew Trick2010-11-101-3/+3
| | | | | | | | | | benchmarks hitting an assertion. Adds LiveIntervalUnion::collectInterferingVRegs. Fixes "late spilling" by checking for any unspillable live vregs among all physReg aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
* Use MCSectionELF in places we know we have an ELF section.Rafael Espindola2010-11-101-3/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
* Rename AccessesArguments and AccessesArgumentsReadonly, and rewriteDan Gohman2010-11-101-7/+8
| | | | | | | their comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a copy+pasto Duncan noticed.Dan Gohman2010-11-101-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a doesAccessArgPointees helper function, and update code to useDan Gohman2010-11-101-0/+8
| | | | | | | it, and to be consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out the code for testing whether a function accessesDan Gohman2010-11-101-3/+10
| | | | | | | arbitrary memory into a helper function, and adjust some comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
* Give NonLocalDepResult a NonLocalDepEntry member, replacingDan Gohman2010-11-101-30/+29
| | | | | | | | indivudal members holding the same data, to clarify the relationship between NonLocalDepResult and NonLocalDepEntry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686 91177308-0d34-0410-b5e6-96231b3b80d8
* System/Path: Update comments to match code.Michael J. Spencer2010-11-101-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118682 91177308-0d34-0410-b5e6-96231b3b80d8
* There is no EndPtr anymore - reinterpret the original comment in termsDuncan Sands2010-11-101-3/+3
| | | | | | | of InputData. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118677 91177308-0d34-0410-b5e6-96231b3b80d8
* Update ARMConstantPoolValue to not use a modifier string. Use an explicitJim Grosbach2010-11-101-3/+9
| | | | | | | | | VariantKind marker to indicate the additional information necessary. Update MC to handle the new Kinds. rdar://8647623 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
* Make ModRefBehavior a lattice. Use this to clean up AliasAnalysisDan Gohman2010-11-101-9/+9
| | | | | | | chaining and simplify FunctionAttrs' GetModRefBehavior logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed version of 118639 with an extra assert to catch similar problemsRafael Espindola2010-11-092-10/+2
| | | | | | earlier. Implicit bool -> int conversions are evil! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert previous patch. Missed a case.Rafael Espindola2010-11-092-2/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove IsExplicit. It was always false.Rafael Espindola2010-11-092-10/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
* Convert comments to doxygen syntax.Dan Gohman2010-11-091-23/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118628 91177308-0d34-0410-b5e6-96231b3b80d8
* AccessesArgumentsReadonly is read-only.Dan Gohman2010-11-091-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118615 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsicDan Gohman2010-11-091-0/+7
| | | | | | | property IntrReadArgMem can be modeled. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118614 91177308-0d34-0410-b5e6-96231b3b80d8
* Factor out the logic for onlyReadsMemory into a helper function.Dan Gohman2010-11-091-3/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118611 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete AccessesArgumentsAndGlobals, which was unused.Dan Gohman2010-11-091-5/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118610 91177308-0d34-0410-b5e6-96231b3b80d8
* System/Path/Windows: Change GetRootDirectory to return file:/// instead of C:/.Michael J. Spencer2010-11-091-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118502 91177308-0d34-0410-b5e6-96231b3b80d8
* Add some comments noting some correspondences between ModRefBehaviorDan Gohman2010-11-081-0/+6
| | | | | | | values, LLVM IR function attributes, and LLVM intrinsic attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118455 91177308-0d34-0410-b5e6-96231b3b80d8
* Document parameters. Fix typos.Devang Patel2010-11-081-4/+23
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118424 91177308-0d34-0410-b5e6-96231b3b80d8
* Extend the AliasAnalysis::pointsToConstantMemory interface to allow itDan Gohman2010-11-081-7/+8
| | | | | | | | | | | | | to optionally look for constant or local (alloca) memory. Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select and Phi nodes, and to support looking for local memory. Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that AliasAnalysis knows all the tricks that it knew. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118412 91177308-0d34-0410-b5e6-96231b3b80d8
* Delete getIntrinsicModRefBehavior. Clients can just use the normalDan Gohman2010-11-081-5/+0
| | | | | | | | getModRefBehavior now, since it now understands intrinsics as well as normal functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118411 91177308-0d34-0410-b5e6-96231b3b80d8
* Add comments.Dan Gohman2010-11-081-5/+9
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118408 91177308-0d34-0410-b5e6-96231b3b80d8
* Add registry hook for assembly text outputChe-Liang Chiou2010-11-081-1/+51
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118394 91177308-0d34-0410-b5e6-96231b3b80d8
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