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* CalcSpillWeights: allow overidding the spill weight normalizing functionArnaud A. de Grandmaison2013-11-111-3/+4
| | | | | | | | This will enable the PBQP register allocator to provide its own normalizing function. No functionnal change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194417 91177308-0d34-0410-b5e6-96231b3b80d8
* CalcSpillWeights: give a better describing name to calculateSpillWeightsArnaud A. de Grandmaison2013-11-115-9/+10
| | | | | | | | Besides, this relates it more obviously to the VirtRegAuxInfo::calculateSpillWeightAndHint. No functionnal change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194404 91177308-0d34-0410-b5e6-96231b3b80d8
* Unify the adding of enumerators with the construction of the enumeration.Eric Christopher2013-11-112-23/+25
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194401 91177308-0d34-0410-b5e6-96231b3b80d8
* Formatting.Eric Christopher2013-11-111-9/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194400 91177308-0d34-0410-b5e6-96231b3b80d8
* 80-col.Eric Christopher2013-11-111-5/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194399 91177308-0d34-0410-b5e6-96231b3b80d8
* Just pass the DIComposite type by value instead of by pointer.Eric Christopher2013-11-112-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194398 91177308-0d34-0410-b5e6-96231b3b80d8
* Vector forms of SHL, SRA, and SRL can be constant folded using ↵Daniel Sanders2013-11-111-0/+18
| | | | | | | | | | | | | | SimplifyVBinOp too Reviewers: dsanders Reviewed By: dsanders CC: llvm-commits, nadav Differential Revision: http://llvm-reviews.chandlerc.com/D1958 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194393 91177308-0d34-0410-b5e6-96231b3b80d8
* CalculateSpillWeights does not need to be a passArnaud A. de Grandmaison2013-11-105-29/+14
| | | | | | | | | | Based on discussions with Lang Hames and Jakob Stoklund Olesen at the hacker's lab, and in the light of upcoming work on the PBQP register allocator, it was though that CalcSpillWeights does not need to be a pass. This change will enable to customize / tune the spill weight computation depending on the allocator. Update the documentation style while there. No functionnal change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194356 91177308-0d34-0410-b5e6-96231b3b80d8
* Use type form of getIntPtrType.Matt Arsenault2013-11-102-3/+4
| | | | | | | | This should be inconsequential and is work towards removing the default address space arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194347 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-apply r194300 with fixes for warnings.Lang Hames2013-11-091-14/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194311 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r194300 which broke the build.Nick Lewycky2013-11-091-14/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194308 91177308-0d34-0410-b5e6-96231b3b80d8
* [Stackmap] Materialize the jump address within the patchpoint noop slide.Juergen Ributzka2013-11-092-4/+15
| | | | | | | | | | | | | | | This patch moves the jump address materialization inside the noop slide. This enables patching of the materialization itself or its complete removal. This patch also adds the ability to define scratch registers that can be used safely by the code called from the patchpoint intrinsic. At least one scratch register is required, because that one is used for the materialization of the jump address. This patch depends on D2009. Differential Revision: http://llvm-reviews.chandlerc.com/D2074 Reviewed by Andy git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194306 91177308-0d34-0410-b5e6-96231b3b80d8
* Rewrite the PBQP graph data structure.Lang Hames2013-11-091-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new graph structure replaces the node and edge linked lists with vectors. Free lists (well, free vectors) are used for fast insertion/deletion. The ultimate aim is to make PBQP graphs cheap to clone. The motivation is that the PBQP solver destructively consumes input graphs while computing a solution, forcing the graph to be fully reconstructed for each round of PBQP. This imposes a high cost on large functions, which often require several rounds of solving/spilling to find a final register allocation. If we can cheaply clone the PBQP graph and incrementally update it between rounds then hopefully we can reduce this cost. Further, once we begin pooling matrix/vector values (future work), we can cache some PBQP solver metadata and share it between cloned graphs, allowing the PBQP solver to re-use some of the computation done in earlier rounds. For now this is just a data structure update. The allocator and solver still use the graph the same way as before, fully reconstructing it between each round. I expect no material change from this update, although it may change the iteration order of the nodes, causing ties in the solver to break in different directions, and this could perturb the generated allocations (hopefully in a completely benign way). Thanks very much to Arnaud Allard de Grandmaison for encouraging me to get back to work on this, and for a lot of discussion and many useful PBQP test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194300 91177308-0d34-0410-b5e6-96231b3b80d8
* [Stackmap] Add AnyReg calling convention support for patchpoint intrinsic.Juergen Ributzka2013-11-084-36/+100
| | | | | | | | | | | | | | The idea of the AnyReg Calling Convention is to provide the call arguments in registers, but not to force them to be placed in a paticular order into a specified set of registers. Instead it is up tp the register allocator to assign any register as it sees fit. The same applies to the return value (if applicable). Differential Revision: http://llvm-reviews.chandlerc.com/D2009 Reviewed by Andy git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194293 91177308-0d34-0410-b5e6-96231b3b80d8
* increase the accuracy of register pressure computation in the presence of ↵Pedro Artigas2013-11-082-16/+36
| | | | | | dead definitions by using live intervals, if available, to identify dead definitions and proceed accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194286 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix some minor issues with r194282 to get the tree healthy again.Lang Hames2013-11-081-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194284 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a method to get the object-file appropriate stack map section.Lang Hames2013-11-081-2/+1
| | | | | | | | Thanks to Eric Christopher for the tips on the appropriate way to do this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194282 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "CalculateSpillWeights does not need to be a pass"Arnaud A. de Grandmaison2013-11-085-9/+29
| | | | | | Temporarily revert my previous commit until I understand why it breaks 3 target tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194272 91177308-0d34-0410-b5e6-96231b3b80d8
* [VirtRegMap] Fix for PR17825. Do not ignore noreturn definitions when settingQuentin Colombet2013-11-081-1/+5
| | | | | | | | isPhysRegUsed if the unwind information is required. Indeed, the runtime may need a correct stack to be able to unwind the call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194271 91177308-0d34-0410-b5e6-96231b3b80d8
* CalculateSpillWeights does not need to be a passArnaud A. de Grandmaison2013-11-085-29/+9
| | | | | | | | | | Based on discussions with Lang Hames and Jakob Stoklund Olesen at the hacker's lab, and in the light of upcoming work on the PBQP register allocator, it was though that CalcSpillWeights does not need to be a pass. This change will enable to customize / tune the spill weight computation depending on the allocator. Update the documentation style while there. No functionnal change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194269 91177308-0d34-0410-b5e6-96231b3b80d8
* CalculateSpillWeights cleanup: remove unneeded includesArnaud A. de Grandmaison2013-11-081-2/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194259 91177308-0d34-0410-b5e6-96231b3b80d8
* Slightly change the way stackmap and patchpoint intrinsics are lowered.Andrew Trick2013-11-051-9/+27
| | | | | | | | | | | | | | MorphNodeTo is not safe to call during DAG building. It eagerly deletes dependent DAG nodes which invalidates the NodeMap. We could expose a safe interface for morphing nodes, but I don't think it's worth it. Just create a new MachineNode and replaceAllUsesWith. My understaning of the SD design has been that we want to support early target opcode selection. That isn't very well supported, but generally works. It seems reasonable to rely on this feature even if it isn't widely used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194102 91177308-0d34-0410-b5e6-96231b3b80d8
* Comment some and reformat for clarity beginFunction.Eric Christopher2013-11-011-30/+42
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193894 91177308-0d34-0410-b5e6-96231b3b80d8
* [Stackmap] Remove erroneous assert.Juergen Ributzka2013-11-011-3/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193871 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove linkonce_odr_auto_hide.Rafael Espindola2013-11-011-4/+2
| | | | | | | | | | | | | | | linkonce_odr_auto_hide was in incomplete attempt to implement a way for the linker to hide symbols that are known to be available in every TU and whose addresses are not relevant for a particular DSO. It was redundant in that it all its uses are equivalent to linkonce_odr+unnamed_addr. Unlike those, it has never been connected to clang or llvm's optimizers, so it was effectively dead. Given that nothing produces it, this patch just nukes it (other than the llvm-c enum value). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193865 91177308-0d34-0410-b5e6-96231b3b80d8
* Commenting out this assert because it is causing the build bots to fail. ↵Aaron Ballman2013-11-011-2/+2
| | | | | | This effectively reverts r193861, but needs to be fixed as part of r193769. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193862 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixing an order of evaluation error in an assert.Aaron Ballman2013-11-011-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193861 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Emit member variable locations as data instead of expressions in ↵David Blaikie2013-11-011-29/+31
| | | | | | | | | blocks Drive by space optimization. Also makes the DIEs more regular which might speed up DWARF parsing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193835 91177308-0d34-0410-b5e6-96231b3b80d8
* Unused variableAndrew Trick2013-10-311-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193819 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for stack map generation in the X86 backend.Andrew Trick2013-10-313-0/+217
| | | | | | Originally implemented by Lang Hames. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193811 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: remove duplication of DIEs when a DIE can be shared across CUs.Manman Ren2013-10-316-11/+87
| | | | | | | | | | | | | | | | | | | | We add a map in DwarfDebug to map MDNodes that are shareable across CUs to the corresponding DIEs: MDTypeNodeToDieMap. These DIEs can be shared across CUs, that is why we keep the maps in DwarfDebug instead of CompileUnit. We make the assumption that if a DIE is not added to an owner yet, we assume it belongs to the current CU. Since DIEs for the type system are added to their owners immediately after creation, and other DIEs belong to the current CU, the assumption should be true. A testing case is added to show that we only create a single DIE for a type MDNode and we use ref_addr to refer to the type DIE. We also add a testing case to show ref_addr relocations for non-darwin platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193779 91177308-0d34-0410-b5e6-96231b3b80d8
* Lower stackmap intrinsics directly to their target opcode in the DAG builder.Andrew Trick2013-10-313-11/+216
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193769 91177308-0d34-0410-b5e6-96231b3b80d8
* whitespaceAndrew Trick2013-10-311-7/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193765 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the --shrink-wrap option.Rafael Espindola2013-10-314-1394/+69
| | | | | | It had no tests, was unused and was "experimental at best". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193749 91177308-0d34-0410-b5e6-96231b3b80d8
* Legalize: Improve legalization of long vector extends.Jim Grosbach2013-10-312-3/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When an extend more than doubles the size of the elements (e.g., a zext from v16i8 to v16i32), the normal legalization method of splitting the vectors will run into problems as by the time the destination vector is legal, the source vector is illegal. The end result is the operation often becoming scalarized, with the typical horrible performance. For example, on x86_64, the simple input of: define void @bar(<16 x i8> %a, <16 x i32>* %p) nounwind { %tmp = zext <16 x i8> %a to <16 x i32> store <16 x i32> %tmp, <16 x i32>*%p ret void } Generates: .section __TEXT,__text,regular,pure_instructions .section __TEXT,__const .align 5 LCPI0_0: .long 255 ## 0xff .long 255 ## 0xff .long 255 ## 0xff .long 255 ## 0xff .long 255 ## 0xff .long 255 ## 0xff .long 255 ## 0xff .long 255 ## 0xff .section __TEXT,__text,regular,pure_instructions .globl _bar .align 4, 0x90 _bar: vpunpckhbw %xmm0, %xmm0, %xmm1 vpunpckhwd %xmm0, %xmm1, %xmm2 vpmovzxwd %xmm1, %xmm1 vinsertf128 $1, %xmm2, %ymm1, %ymm1 vmovaps LCPI0_0(%rip), %ymm2 vandps %ymm2, %ymm1, %ymm1 vpmovzxbw %xmm0, %xmm3 vpunpckhwd %xmm0, %xmm3, %xmm3 vpmovzxbd %xmm0, %xmm0 vinsertf128 $1, %xmm3, %ymm0, %ymm0 vandps %ymm2, %ymm0, %ymm0 vmovaps %ymm0, (%rdi) vmovaps %ymm1, 32(%rdi) vzeroupper ret So instead we can check if there are legal types that enable us to split more cleverly when the input vector is already legal such that we don't turn it into an illegal type. If the extend is such that it's more than doubling the size of the input we check if - the number of vector elements is even, - the source type is legal, - the type of a split source is illegal, - the type of an extended (by doubling element size) source is legal, and - the type of that extended source when split is legal. If the conditions are met, instead of just splitting both the destination and the source types, we create an extend that only goes up one "step" (doubling the element width), and the continue legalizing the rest of the operation normally. The result is that this operates as a new, more effecient, termination condition for the loop of "split the operation until the destination type is legal." With this change, the above example now compiles to: _bar: vpxor %xmm1, %xmm1, %xmm1 vpunpcklbw %xmm1, %xmm0, %xmm2 vpunpckhwd %xmm1, %xmm2, %xmm3 vpunpcklwd %xmm1, %xmm2, %xmm2 vinsertf128 $1, %xmm3, %ymm2, %ymm2 vpunpckhbw %xmm1, %xmm0, %xmm0 vpunpckhwd %xmm1, %xmm0, %xmm3 vpunpcklwd %xmm1, %xmm0, %xmm0 vinsertf128 $1, %xmm3, %ymm0, %ymm0 vmovaps %ymm0, 32(%rdi) vmovaps %ymm2, (%rdi) vzeroupper ret This generalizes a custom lowering that was added a while back to the ARM backend. That lowering is no longer necessary, and is removed. The testcases for it, however, provide excellent ARM tests for this change and so remain. rdar://14735100 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193727 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix CodeGen for unaligned loads with address spacesMatt Arsenault2013-10-301-2/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193721 91177308-0d34-0410-b5e6-96231b3b80d8
* Produce .weak_def_can_be_hidden for some linkonce_odr valuesRafael Espindola2013-10-301-7/+20
| | | | | | | | | | | | | | With this patch llvm produces a weak_def_can_be_hidden for linkonce_odr if they are also unnamed_addr or don't have their address taken. There is not a lot of documentation about .weak_def_can_be_hidden, but from the old discussion about linkonce_odr_auto_hide and the name of the directive this looks correct: these symbols can be hidden. Testing this with the ld64 in Xcode 5 linking clang reduces the number of exported symbols from 21053 to 19049. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193718 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Push header handling down into CompileUnitDavid Blaikie2013-10-303-18/+29
| | | | | | | This is a preliminary step to handling type units by abstracting over all (type or compile) units. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193714 91177308-0d34-0410-b5e6-96231b3b80d8
* DwarfDebug: Change Abbreviations member from pointer to referenceDavid Blaikie2013-10-302-10/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193699 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs ↵Juergen Ributzka2013-10-302-35/+8
| | | | | | | | splitting too." Now Hexagon and SystemZ are not happy with it :-( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193677 91177308-0d34-0410-b5e6-96231b3b80d8
* SelectionDAG: Teach the legalizer to split SETCC if VSELECT needs splitting too.Juergen Ributzka2013-10-302-8/+35
| | | | | | | | | | | | | | | | | | | | The Type Legalizer recognizes that VSELECT needs to be split, because the type is to wide for the given target. The same does not always apply to SETCC, because less space is required to encode the result of a comparison. As a result VSELECT is split and SETCC is unrolled into scalar comparisons. This commit fixes the issue by checking for VSELECT-SETCC patterns in the DAG Combiner. If a matching pattern is found, then the result mask of SETCC is promoted to the expected vector mask type for the given target. This mask has usually the same size as the VSELECT return type (except for Intel KNL). Now the type legalizer will split both VSELECT and SETCC. This allows the following X86 DAG Combine code to sucessfully detect the MIN/MAX pattern. This fixes PR16695, PR17002, and <rdar://problem/14594431>. Reviewed by Nadav git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193676 91177308-0d34-0410-b5e6-96231b3b80d8
* Reformat code with clang-format.Josh Magee2013-10-301-37/+40
| | | | | | | Differential Revision: http://llvm-reviews.chandlerc.com/D2057 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193672 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: code clean up.Manman Ren2013-10-292-3/+5
| | | | | | | | | | | Use EmitLabelOffsetDifference for handling on darwin platform when non-darwin platforms use EmitLabelPlusOffset. Also fix a bug in EmitLabelOffsetDifference where the size is hard-coded to 4 even though Size is passed in as an argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193660 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: support for DW_FORM_ref_addr.Manman Ren2013-10-296-3/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To support ref_addr, we calculate the section offset of a DIE (i.e. offset of a DIE from beginning of the debug info section). The Offset field in DIE is currently CU-relative. To calculate the section offset, we add a DebugInfoOffset field in CompileUnit to store the offset of a CU from beginning of the debug info section. We set the value in DwarfUnits::computeSizeAndOffset for each CompileUnit. A helper function DIE::getCompileUnit is added to return the CU DIE that the input DIE belongs to. We also add a map CUDieMap in DwarfDebug to help finding the CU for a given CU DIE. For a cross-referenced DIE, we first find the CU DIE it belongs to with getCompileUnit, then we use CUDieMap to get the corresponding CU for the CU DIE. Adding the section offset of the CU with the CU-relative offset of a DIE gives us the seciton offset of the DIE. We correctly emit ref_addr with relocation using EmitLabelPlusOffset when doesDwarfUseRelocationsAcrossSections is true. This commit handles the emission of DW_FORM_ref_addr when we have an attribute with FORM_ref_addr. A follow-on patch will start using ref_addr when adding a DIEEntry. This commit will be tested and verified in the follow-on patch. Reviewed off-list by Eric, Thanks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193658 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: instead of calling addToContextOwner which constructs the contextManman Ren2013-10-292-21/+9
| | | | | | | | | | | | | | | | after the DIE creation, we construct the context first. Ensure that we create the context before we create a type so that we can add the newly created type to the parent. Remove last use of addToContextOwner now that it's not needed. We use createAndAddDIE to wrap around "new DIE(". Now all shareable DIEs should be added to their parents right after the creation. Reviewed off-list by Eric, Thanks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193657 91177308-0d34-0410-b5e6-96231b3b80d8
* [stackprotector] Update the StackProtector pass to perform datalayout analysis.Josh Magee2013-10-291-27/+60
| | | | | | | | | | | | | | | | This modifies the pass to classify every SSP-triggering AllocaInst according to an SSPLayoutKind (LargeArray, SmallArray, AddrOf). This analysis is collected by the pass and made available for use, but no other pass uses it yet. The next patch will make use of this analysis in PEI and StackSlot passes. The end goal is to support ssp-strong stack layout rules. WIP. Differential Revision: http://llvm-reviews.chandlerc.com/D1789 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193653 91177308-0d34-0410-b5e6-96231b3b80d8
* Move getSymbol to TargetLoweringObjectFile.Rafael Espindola2013-10-292-9/+9
| | | | | | This allows constructing a Mangler with just a TargetMachine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193630 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a helper getSymbol to AsmPrinter.Rafael Espindola2013-10-294-14/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193627 91177308-0d34-0410-b5e6-96231b3b80d8
* Debug Info: instead of calling addToContextOwner which constructs the contextManman Ren2013-10-291-7/+17
| | | | | | | | | | | | | after the DIE creation, we construct the context first. This touches creation of namespaces and global variables. The purpose is to handle all DIE creations similarly: constructs the context first, then creates the DIE and immediately adds the DIE to its parent. We use createAndAddDIE to wrap around "new DIE(". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193589 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix "existant" typosAlp Toker2013-10-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193579 91177308-0d34-0410-b5e6-96231b3b80d8
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