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* [IR][CodeGen] Remove dependency on EVT from IR/Function.cpp. Move EVT to ↵Craig Topper2018-03-291-1/+1
| | | | | | | | | | | | CodeGen layer. Currently EVT is in the IR layer only because of Function.cpp needing a very small piece of the functionality of EVT::getEVTString(). The rest of EVT is used in codegen making CodeGen a better place for it. The previous code converted a Type* to EVT and then called getEVTString. This was only expected to handle the primitive types from Type*. Since there only a few primitive types, we can just print them as strings directly. Differential Revision: https://reviews.llvm.org/D45017 llvm-svn: 328806
* Fix layering by moving ValueTypes.h from CodeGen to IRDavid Blaikie2018-03-231-1/+1
| | | | | | ValueTypes.h is implemented in IR already. llvm-svn: 328397
* Fix layering of MachineValueType.h by moving it from CodeGen to SupportDavid Blaikie2018-03-231-1/+1
| | | | | | | | | This is used by llvm tblgen as well as by LLVM Targets, so the only common place is Support for now. (maybe we need another target for these sorts of things - but for now I'm at least making them correct & we can make them better if/when people have strong feelings) llvm-svn: 328395
* [MIPS][MSA] Convert vector integer min/max opcodes to use generic implementationSimon Pilgrim2018-02-171-48/+13
| | | | | | | | | | Found while investigating D43338 Simon^3 - the LLVM project needs more Simons. Differential Revision: https://reviews.llvm.org/D43433 llvm-svn: 325447
* Fix a bunch more layering of CodeGen headers that are in TargetDavid Blaikie2017-11-171-1/+1
| | | | | | | | All these headers already depend on CodeGen headers so moving them into CodeGen fixes the layering (since CodeGen depends on Target, not the other way around). llvm-svn: 318490
* [mips] Improve genConstMult() to work with arbitrary precisionPetar Jovanovic2017-11-151-11/+9
| | | | | | | | | | | APInt is now used instead of uint64_t in function genConstMult() allowing multiplication optimizations with constants of arbitrary length. Patch by Milos Stojanovic. Differential Revision: https://reviews.llvm.org/D38130 llvm-svn: 318296
* Target/TargetInstrInfo.h -> CodeGen/TargetInstrInfo.h to match layeringDavid Blaikie2017-11-081-1/+1
| | | | | | | | This header includes CodeGen headers, and is not, itself, included by any Target headers, so move it into CodeGen to match the layering of its implementation. llvm-svn: 317647
* [Mips] Fix some Clang-tidy modernize-use-using and Include What You Use ↵Eugene Zelenko2017-08-031-15/+31
| | | | | | warnings; other minor fixes (NFC). llvm-svn: 309993
* Reland r308585Stefan Maksimovic2017-07-201-1/+18
| | | | | | | | Builder clang-x86_64-linux-abi-test apparently failed due to a spurious error unrelated to the changes r308585 introduced. llvm-svn: 308612
* Revert r308585Stefan Maksimovic2017-07-201-18/+1
| | | | | | Builder clang-x86_64-linux-abi-test seems to fail after this change llvm-svn: 308597
* [mips] Fix fp select machine verifier errorsStefan Maksimovic2017-07-201-1/+18
| | | | | | | | | | | | | | | | | Introduced FSELECT node necesary when lowering ISD::SELECT which has i32, f64, f64 as its operands. SEL_D instruction required that its output and first operand of a SELECT node, which it used, have matching types. MTC1_D64 node introduced to aid FSELECT lowering. This fixes machine verifier errors on following tests: CodeGen/Mips/llvm-ir/select-dbl.ll CodeGen/Mips/llvm-ir/select-flt.ll CodeGen/Mips/select.ll Differential Revision: https://reviews.llvm.org/D35408 llvm-svn: 308595
* [mips] Alter register classes for MSA pseudo f16 instructionsStefan Maksimovic2017-07-181-4/+23
| | | | | | | | | | | This change introduces additional machine instructions in functions dealing with the expansion of msa pseudo f16 instructions due to register classes being inappropriate when checked with machine verifier. Differential Revision: https://reviews.llvm.org/D34276 llvm-svn: 308301
* Reland "[mips] Fix multiprecision arithmetic."Simon Dardis2017-07-131-176/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | For multiprecision arithmetic on MIPS, rather than using ISD::ADDE / ISD::ADDC, get SelectionDAG to break down the operation into ISD::ADDs and ISD::SETCCs. For MIPS, only the DSP ASE has a carry flag, so in the general case it is not useful to directly support ISD::{ADDE, ADDC, SUBE, SUBC} nodes. Also improve the generation code in such cases for targets with TargetLoweringBase::ZeroOrOneBooleanContent by directly using the result of the comparison node rather than using it in selects. Similarly for ISD::SUBE / ISD::SUBC. Address optimization breakage by moving the generation of MIPS specific integer multiply-accumulate nodes to before legalization. This revolves PR32713 and PR33424. Thanks to Simonas Kazlauskas and Pirama Arumuga Nainar for reporting the issue! Reviewers: slthakur Differential Revision: https://reviews.llvm.org/D33494 The previous version of this patch was too aggressive in producing fused integer multiple-addition instructions. llvm-svn: 307906
* Revert "[mips] Fix multiprecision arithmetic."Simon Dardis2017-06-291-0/+176
| | | | | | | This reverts commit r305389. This broke chromium builds, so reverting while I investigate further. llvm-svn: 306741
* [mips][msa] Splat.d endianness checkStefan Maksimovic2017-06-231-6/+12
| | | | | | | | | | | | | Before this change, it was always the first element of a vector that got splatted since the lower 6 bits of vshf.d $wd were always zero for little endian. Additionally, masking has been performed for vshf via which splat.d is created. Vshf has a property where if its first operand's elements have either bit 6 or 7 set, destination element is set to zero. Initially masked with 63 to avoid this property, which would result in generation of and.v + vshf.d in all cases. Masking with one results in generating a single splati.d instruction when possible. Differential Revision: https://reviews.llvm.org/D32216 llvm-svn: 306090
* [mips] Fix multiprecision arithmetic.Simon Dardis2017-06-141-176/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | For multiprecision arithmetic on MIPS, rather than using ISD::ADDE / ISD::ADDC, get SelectionDAG to break down the operation into ISD::ADDs and ISD::SETCCs. For MIPS, only the DSP ASE has a carry flag, so in the general case it is not useful to directly support ISD::{ADDE, ADDC, SUBE, SUBC} nodes. Also improve the generation code in such cases for targets with TargetLoweringBase::ZeroOrOneBooleanContent by directly using the result of the comparison node rather than using it in selects. Similarly for ISD::SUBE / ISD::SUBC. Address optimization breakage by moving the generation of MIPS specific integer multiply-accumulate nodes to before legalization. This revolves PR32713 and PR33424. Thanks to Simonas Kazlauskas and Pirama Arumuga Nainar for reporting the issue! Reviewers: slthakur Differential Revision: https://reviews.llvm.org/D33494 llvm-svn: 305389
* [mips][msa] Mask vectors holding shift amountsPetar Jovanovic2017-04-201-6/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | Masked vectors which hold shift amounts when creating the following nodes: ISD::SHL, ISD::SRL or ISD::SRA. Instructions that use said nodes, which have had their arguments altered are sll, srl, sra, bneg, bclr and bset. For said instructions, the shift amount or the bit position that is specified in the corresponding vector elements will be interpreted as the shift amount/bit position modulo the size of the element in bits. The problem lies in compiling with -O2 enabled, where the instructions for formats .w and .d are not generated, but are instead optimized away. In this case, having shift amounts that are either negative or greater than the element bit size results in generation of incorrect results when constant folding. We remedy this by masking the operands for the nodes mentioned above before actually creating them, so that the final result is correct before placed into the constant pool. Patch by Stefan Maksimovic. Differential Revision: https://reviews.llvm.org/D31331 llvm-svn: 300839
* [mips][msa] Fix generation of bm(n)zi and bins[lr]i instructionsPetar Jovanovic2017-04-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | We have two cases here, the first one being the following instruction selection from the builtin function: bm(n)zi builtin -> vselect node -> bins[lr]i machine instruction In case of bm(n)zi having an immediate which has either its high or low bits set, a bins[lr] instruction can be selected through the selectVSplatMask[LR] function. The function counts the number of bits set, and that value is being passed to the bins[lr]i instruction as its immediate, which in turn copies immediate modulo the size of the element in bits plus 1 as per specs, where we get the off-by-one-error. The other case is: bins[lr]i -> vselect node -> bsel.v In this case, a bsel.v instruction gets selected with a mask having one bit less set than required. Patch by Stefan Maksimovic. Differential Revision: https://reviews.llvm.org/D30579 llvm-svn: 299768
* [Mips] Add support to match more patterns for DEXT and CINSPetar Jovanovic2017-03-151-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for recognizing more patterns to match to DEXT and CINS instructions. It finds cases where multiple instructions could be replaced with a single DEXT or CINS instruction. For example, for the following: define i64 @dext_and32(i64 zeroext %a) { entry: %and = and i64 %a, 4294967295 ret i64 %and } instead of generating: 0000000000000088 <dext_and32>: 88: 64010001 daddiu at,zero,1 8c: 0001083c dsll32 at,at,0x0 90: 6421ffff daddiu at,at,-1 94: 03e00008 jr ra 98: 00811024 and v0,a0,at 9c: 00000000 nop the following gets generated: 0000000000000068 <dext_and32>: 68: 03e00008 jr ra 6c: 7c82f803 dext v0,a0,0x0,0x20 Cases that are covered: DEXT: 1. and $src, mask where mask > 0xffff 2. zext $src zero extend from i32 to i64 CINS: 1. and (shl $src, pos), mask 2. shl (and $src, mask), pos 3. zext (shl $src, pos) zero extend from i32 to i64 Patch by Violeta Vukobrat. Differential Revision: https://reviews.llvm.org/D30464 llvm-svn: 297832
* [mips][msa] Accept more values for constant splatsSimon Dardis2017-03-101-5/+4
| | | | | | | | | | | | | | | | | This patches teaches the MIPS backend to accept more values for constant splats. Previously, only 10 bit signed immediates or values that could be loaded using an ldi.[bhwd] instruction would be acceptted. This patch relaxes that constraint so that any constant value that be splatted is accepted. As a result, the constant pool is used less for vector operations, and the suite of bit manipulation instructions b(clr|set|neg)i can now be used with the full range of their immediate operand. Reviewers: slthakur Differential Revision: https://reviews.llvm.org/D30640 llvm-svn: 297457
* [CodeGen] Rename MachineInstrBuilder::addOperand. NFCDiana Picus2017-01-131-1/+1
| | | | | | | | | | | Rename from addOperand to just add, to match the other method that has been added to MachineInstrBuilder for adding more than just 1 operand. See https://reviews.llvm.org/D28057 for the whole discussion. Differential Revision: https://reviews.llvm.org/D28556 llvm-svn: 291891
* [mips] Fix Mips MSA instrinsicsSimon Dardis2017-01-101-17/+137
| | | | | | | | | | | | | | | | The usage of some MIPS MSA instrinsics that took immediates could crash LLVM during lowering. This patch addresses that behaviour. Crucially this patch also makes the use of intrinsics with out of range immediates as producing an internal error. The ld,st instrinsics would trigger an assertion failure for MIPS64 as their lowering would attempt to add an i32 offset to a i64 pointer. Reviewers: vkalintiris, slthakur Differential Revision: https://reviews.llvm.org/D25438 llvm-svn: 291571
* [mips] Honour -mno-odd-spreg for vector splat (again)Simon Dardis2017-01-101-2/+6
| | | | | | | | | | | | | | | | | | | | Previous the lowering of FILL_FW would use the MSA128W register class when performing a vector splat. Instead it should be honouring -mno-odd-spreg and only use the even registers when performing a splat from word to vector register. Logical follow-on from r230235. This fixes PR/31369. A previous commit was missing the test case and had another differential in it. Reviewers: slthakur Differential Revision: https://reviews.llvm.org/D28373 llvm-svn: 291566
* Revert "[mips] Honour -mno-odd-spreg for vector splat"Simon Dardis2017-01-101-6/+2
| | | | | | | This reverts commit r291556. It was a mixture of two differentials and was missing a test. llvm-svn: 291562
* [mips] Honour -mno-odd-spreg for vector splatSimon Dardis2017-01-101-2/+6
| | | | | | | | | | | | | | | | | Previous the lowering of FILL_FW would use the MSA128W register class when performing a vector splat. Instead it should be honouring -mno-odd-spreg and only use the even registers when performing a splat from word to vector register. Logical follow-on from r230235. This fixes PR/31369. Reviewers: slthakur Differential Revision: https://reviews.llvm.org/D28373 llvm-svn: 291556
* [mips][msa] Implement f16 supportSimon Dardis2016-11-181-0/+348
| | | | | | | | | | | | | | | The MIPS MSA ASE provides instructions to convert to and from half precision floating point. This patch teaches the MIPS backend to treat f16 as a legal type and how to promote such values to f32 for the usual set of operations. As a result of this, the fexup[lr].w intrinsics no longer crash LLVM during type legalization. Reviewers: zoran.jovanvoic, vkalintiris Differential Revision: https://reviews.llvm.org/D26398 llvm-svn: 287349
* [mips] Disable tail calls temporarilySimon Dardis2016-09-271-1/+1
| | | | | | | | | | Disable tail calls while the remaining bugs are fixed. Enable only for tests. Reviewers: vkalintiris Differential Review: https://reviews.llvm.org/D24912 llvm-svn: 282487
* getVectorElementType().getSizeInBits() -> getScalarSizeInBits() ; NFCISanjay Patel2016-09-141-2/+2
| | | | llvm-svn: 281495
* [mips] Enable tail calls by defaultSimon Dardis2016-08-041-3/+3
| | | | | | | | | | | | | | | | | | Enable tail calls by default for (micro)MIPS(64). microMIPS is slightly more tricky than doing it for MIPS(R6) or microMIPSR6. microMIPS has two instruction encodings: 16bit and 32bit along with some restrictions on the size of the instruction that can fill the delay slot. For safe tail calls for microMIPS, the delay slot filler attempts to find a correct size instruction for the delay slot of TAILCALL pseudos. Reviewers: dsanders, vkalintris Subscribers: jfb, dsanders, sdardis, llvm-commits Differential Revision: https://reviews.llvm.org/D21138 llvm-svn: 277708
* [SelectionDAG] Get rid of bool parameters in SelectionDAG::getLoad, ↵Justin Lebar2016-07-151-18/+14
| | | | | | | | | | | | | | | | | | | | | | | getStore, and friends. Summary: Instead, we take a single flags arg (a bitset). Also add a default 0 alignment, and change the order of arguments so the alignment comes before the flags. This greatly simplifies many callsites, and fixes a bug in AMDGPUISelLowering, wherein the order of the args to getLoad was inverted. It also greatly simplifies the process of adding another flag to getLoad. Reviewers: chandlerc, tstellarAMD Subscribers: jholewinski, arsenm, jyknight, dsanders, nemanjai, llvm-commits Differential Revision: http://reviews.llvm.org/D22249 llvm-svn: 275592
* CodeGen: Use MachineInstr& in TargetLowering, NFCDuncan P. N. Exon Smith2016-06-301-76/+82
| | | | | | | | | | | | | This is a mechanical change to make TargetLowering API take MachineInstr& (instead of MachineInstr*), since the argument is expected to be a valid MachineInstr. In one case, changed a parameter from MachineInstr* to MachineBasicBlock::iterator, since it was used as an insertion point. As a side effect, this removes a bunch of MachineInstr* to MachineBasicBlock::iterator implicit conversions, a necessary step toward fixing PR26753. llvm-svn: 274287
* [mips][msa] Fix register/register-class mismatches in emitINSERT_DF_VIDX().Daniel Sanders2016-06-151-3/+6
| | | | | | | | | | Reviewers: sdardis Subscribers: dsanders, sdardis, llvm-commits Differential Revision: http://reviews.llvm.org/D21068 llvm-svn: 272765
* Pass DebugLoc and SDLoc by const ref.Benjamin Kramer2016-06-121-4/+3
| | | | | | | | This used to be free, copying and moving DebugLocs became expensive after the metadata rewrite. Passing by reference eliminates a ton of track/untrack operations. No functionality change intended. llvm-svn: 272512
* [mips][microMIPS] Implement APPEND, BPOSGE32C, MODSUB, MULSA.W.PH and ↵Hrvoje Varga2016-05-131-0/+2
| | | | | | | | MULSAQ_S.W.PH instructions Differential Revision: http://reviews.llvm.org/D14117 llvm-svn: 269408
* [Mips] Add support for llvm.thread.pointer intrinsic.Marcin Koscielnicki2016-04-271-0/+4
| | | | | | | | This will be used to implement __builtin_thread_pointer in clang. Differential Revision: http://reviews.llvm.org/D19569 llvm-svn: 267743
* [CodeGen] Add getBuildVector and getSplatBuildVector helpers. NFCI.Ahmed Bougacha2016-04-261-10/+10
| | | | | | Differential Revision: http://reviews.llvm.org/D17176 llvm-svn: 267606
* [DAG] use isUndef() ; NFCISanjay Patel2016-03-141-1/+1
| | | | llvm-svn: 263448
* Revert "[mips] Promote the result of SETCC nodes to GPR width."Vasileios Kalintiris2016-03-011-0/+1
| | | | | | | | | This reverts commit r262316. It seems that my change breaks an out-of-tree chromium buildbot, so I'm reverting this in order to investigate the situation further. llvm-svn: 262387
* [mips] Promote the result of SETCC nodes to GPR width.Vasileios Kalintiris2016-03-011-1/+0
| | | | | | | | | | | | | | | | | | | | Summary: This patch modifies the existing comparison, branch, conditional-move and select patterns, and adds new ones where needed. Also, the updated SLT{u,i,iu} set of instructions generate a GPR width result. The majority of the code changes in the Mips back-end fix the wrong assumption that the result of SETCC nodes always produce an i32 value. The changes in the common code path account for the fact that in 64-bit MIPS targets, i1 is promoted to i32 instead of i64. Reviewers: dsanders Subscribers: dsanders, llvm-commits Differential Revision: http://reviews.llvm.org/D10970 llvm-svn: 262316
* [CodeGen] Prefer "if (SDValue R = ...)" to "if (R.getNode())". NFCI.Ahmed Bougacha2016-02-091-14/+8
| | | | llvm-svn: 260316
* [mips] Interrupt attribute support for mips32r2+.Vasileios Kalintiris2015-10-261-0/+4
| | | | | | | | | | | | | | | | | | | Summary: This patch adds support for using the "interrupt" attribute on Mips for interrupt handling functions. At this time only mips32r2+ with the o32 ABI with the static relocation model is supported. Unsupported configurations will be rejected Patch by Simon Dardis (+ clang-format & some trivial changes to follow the LLVM coding standards by me). Reviewers: mpf, dsanders Subscribers: dsanders, vkalintiris, llvm-commits Differential Revision: http://reviews.llvm.org/D10768 llvm-svn: 251286
* propagate fast-math-flags on DAG nodesSanjay Patel2015-09-161-4/+14
| | | | | | | | | | | | | | | | | | | After D10403, we had FMF in the DAG but disabled by default. Nick reported no crashing errors after some stress testing, so I enabled them at r243687. However, Escha soon notified us of a bug not covered by any in-tree regression tests: if we don't propagate the flags, we may fail to CSE DAG nodes because differing FMF causes them to not match. There is one test case in this patch to prove that point. This patch hopes to fix or leave a 'TODO' for all of the in-tree places where we create nodes that are FMF-capable. I did this by putting an assert in SelectionDAG.getNode() to find any FMF-capable node that was being created without FMF ( D11807 ). I then ran all regression tests and test-suite and confirmed that everything passes. This patch exposes remaining work to get DAG FMF to be fully functional: (1) add the flags to non-binary nodes such as FCMP, FMA and FNEG; (2) add the flags to intrinsics; (3) use the flags as conditions for transforms rather than the current global settings. Differential Revision: http://reviews.llvm.org/D12095 llvm-svn: 247815
* Re-instate the EVT parameter to getScalarShiftAmountTy() for OOT userMehdi Amini2015-07-091-1/+2
| | | | | | | A documentation for this function would be nice by the way. From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 241807
* Make TargetLowering::getShiftAmountTy() taking DataLayout as an argumentMehdi Amini2015-07-091-2/+2
| | | | | | | | | | | | | | | | Summary: This change is part of a series of commits dedicated to have a single DataLayout during compilation by using always the one owned by the module. Reviewers: echristo Subscribers: jholewinski, llvm-commits, rafael, yaron.keren Differential Revision: http://reviews.llvm.org/D11037 From: Mehdi Amini <mehdi.amini@apple.com> llvm-svn: 241776
* [mips] Correct and improve special-case shuffle instructions.Daniel Sanders2015-05-191-100/+253
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: The documentation writes vectors highest-index first whereas LLVM-IR writes them lowest-index first. As a result, instructions defined in terms of left_half() and right_half() had the halves reversed. In addition to correcting them, they have been improved to allow shuffles that use the same operand twice or in reverse order. For example, ilvev used to accept masks of the form: <0, n, 2, n+2, 4, n+4, ...> but now accepts: <0, 0, 2, 2, 4, 4, ...> <n, n, n+2, n+2, n+4, n+4, ...> <0, n, 2, n+2, 4, n+4, ...> <n, 0, n+2, 2, n+4, 4, ...> One further improvement is that splati.[bhwd] is now the preferred instruction for splat-like operations. The other special shuffles are no longer used for splats. This lead to the discovery that <0, 0, ...> would not cause splati.[hwd] to be selected and this has also been fixed. This fixes the enc-3des test from the test-suite on Mips64r6 with MSA. Reviewers: vkalintiris Reviewed By: vkalintiris Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D9660 llvm-svn: 237689
* Rename the MIPS routine abiUsesSoftFloat -> useSoftFloat to matchEric Christopher2015-05-071-1/+1
| | | | | | some incoming changes and the general scheme used by features (use/has). llvm-svn: 236794
* [mips] Generate code for insert/extract operations when using the N64 ABI ↵Daniel Sanders2015-05-051-0/+6
| | | | | | | | | | | | | | | | | | | | | | and MSA. Summary: When using the N64 ABI, element-indices use the i64 type instead of i32. In many cases, we can use iPTR to account for this but additional patterns and pseudo's are also required. This fixes most (but not quite all) failures in the test-suite when using N64 and MSA together. Reviewers: vkalintiris Reviewed By: vkalintiris Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D9342 llvm-svn: 236494
* [mips][msa] Test basic operations for the N32 ABI too.Daniel Sanders2015-05-051-3/+4
| | | | | | | | | | | | | | | | | Summary: This required adding instruction aliases for dneg. N64 will be enabled shortly but requires additional bugfixes. Reviewers: vkalintiris Reviewed By: vkalintiris Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D9341 llvm-svn: 236489
* Reapply r235977 "[DebugInfo] Add debug locations to constant SD nodes"Sergey Dmitrouk2015-04-281-31/+35
| | | | | | | | | | | | | | | | | | | | | | | | | [DebugInfo] Add debug locations to constant SD nodes This adds debug location to constant nodes of Selection DAG and updates all places that create constants to pass debug locations (see PR13269). Can't guarantee that all locations are correct, but in a lot of cases choice is obvious, so most of them should be. At least all tests pass. Tests for these changes do not cover everything, instead just check it for SDNodes, ARM and AArch64 where it's easy to get incorrect locations on constants. This is not complete fix as FastISel contains workaround for wrong debug locations, which drops locations from instructions on processing constants, but there isn't currently a way to use debug locations from constants there as llvm::Constant doesn't cache it (yet). Although this is a bit different issue, not directly related to these changes. Differential Revision: http://reviews.llvm.org/D9084 llvm-svn: 235989
* Revert "[DebugInfo] Add debug locations to constant SD nodes"Daniel Jasper2015-04-281-35/+31
| | | | | | | This breaks a test: http://bb.pgr.jp/builders/cmake-llvm-x86_64-linux/builds/23870 llvm-svn: 235987
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