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* Object: Handle files without a dynamic symbol table.Peter Collingbourne2017-02-032-0/+4
| | | | | | Differential Revision: https://reviews.llvm.org/D29482 llvm-svn: 294013
* [mips] Remove absolute size assertion for end directiveSimon Dardis2017-02-032-4/+26
| | | | | | | | | | | | | | The .end <symbol> directive for MIPS marks the end of a symbol and sets the symbol's size. Previously, the corresponding emitDirective handler asserted that a function's size could be evaluated to an absolute value at that point in time. This cannot be done with when directives like .align have been encountered, instead set the function's size to the corresponding symbolic expression and let ELFObjectWriter resolve the expression to an absolute value. This avoids a redundant call to evaluateAsAbsolute. llvm-svn: 294012
* [NVPTX] Enable combineRepeatedFPDivisors for NVPTX.Justin Lebar2017-02-032-0/+46
| | | | | | | | | | Reviewers: tra Subscribers: jholewinski, llvm-commits Differential Revision: https://reviews.llvm.org/D29477 llvm-svn: 294011
* [ADT] Fix comment on StringRef::take_back. NFCJustin Lebar2017-02-031-1/+1
| | | | llvm-svn: 294010
* [globalisel] Fix missing break.Daniel Sanders2017-02-031-0/+1
| | | | | | The instruction selector has been emitting the register bank information too. llvm-svn: 294007
* [AMDGPU][mc] Fix AddressSanitizer leftover issue in gfx7_asm_all testArtem Tamazov2017-02-033-9/+11
| | | | | | Issue occurs when assembling "ds_ordered_count v0, v0 gds". llvm-svn: 294004
* [SelectionDAG] Fix for PR30775: Assertion `NodeToMatch->getOpcode() !=Alexey Bataev2017-02-032-8/+253
| | | | | | | | | | | | ISD::DELETED_NODE && "NodeToMatch was removed partway through selection"' failed. NodeToMatch can be modified during matching, but code does not handle this situation. Differential Revision: https://reviews.llvm.org/D29292 llvm-svn: 294003
* [ARM] Change TCReturn to tBL if tailcall optimization fails.Sanne Wouda2017-02-033-6/+39
| | | | | | | | | | | | | | | | | | Summary: The tail call optimisation is performed before register allocation, so at that point we don't know if LR is being spilt or not. If LR was spilt to the stack, then we cannot do a tail call optimisation. That would involve popping back into LR which is not possible in Thumb1 code. Reviewers: rengolin, jmolloy, rovka, olista01 Reviewed By: olista01 Subscribers: llvm-commits, aemerson Differential Revision: https://reviews.llvm.org/D29020 llvm-svn: 294000
* [LLC] Add an inline assembly diagnostics handler.Sanne Wouda2017-02-039-8/+19
| | | | | | | | | | | | | | | | Summary: llc would hit a fatal error for errors in inline assembly. The diagnostics message is now printed. Reviewers: rengolin, MatzeB, javed.absar, anemet Reviewed By: anemet Subscribers: jyknight, nemanjai, llvm-commits Differential Revision: https://reviews.llvm.org/D29408 llvm-svn: 293999
* Test commit: remove a blank line.Sanne Wouda2017-02-031-1/+0
| | | | | | Testing commit access. llvm-svn: 293998
* [SLP] Fix for PR31690: Allow using of extra values in horizontal reductions.Alexey Bataev2017-02-032-146/+181
| | | | | | | | | | | | | | | | | | | | | Currently LLVM supports vectorization of horizontal reduction instructions with initial value set to 0. Patch supports vectorization of reduction with non-zero initial values. Also it supports a vectorization of instructions with some extra arguments, like: float f(float x[], int a, int b) { float p = a % b; p += x[0] + 3; for (int i = 1; i < 32; i++) p += x[i]; return p; } Patch allows vectorization of this kind of horizontal reductions. Differential Revision: https://reviews.llvm.org/D28961 llvm-svn: 293994
* Revert "[ThinLTO] Add an auto-hide feature"Mehdi Amini2017-02-0312-127/+52
| | | | | | | | | This reverts commit r293970. After more discussion, this belongs to the linker side and there is no added value to do it at this level. llvm-svn: 293993
* [AMDGPU] Unroll preferences improvementsStanislav Mekhanoshin2017-02-032-1/+148
| | | | | | | | | | | Exit loop analysis early if suitable private access found. Do not account for GEPs which are invariant to loop induction variable. Do not account for Allocas which are too big to fit into register file anyway. Add option for tuning: -amdgpu-unroll-threshold-private. Differential Revision: https://reviews.llvm.org/D29473 llvm-svn: 293991
* [Support] Accept macosx triple as 'darwin' in Host unittest. NFC.Ahmed Bougacha2017-02-031-0/+1
| | | | | | | If LLVM was configured with an x86_64-apple-macosx host triple, this test would fail, as the API works but the triple isn't in the whitelist. llvm-svn: 293990
* [sanitizer coverage] Fix Instrumentation to work on Windows.Marcos Pividori2017-02-031-21/+29
| | | | | | | | | | | | | | | | | | | | | On Windows, the symbols "___stop___sancov_guards" and "___start___sancov_guards" are not defined automatically. So, we need to take a different approach. We define 3 sections: Section ".SCOV$A" will only hold a variable ___start___sancov_guard. Section ".SCOV$M" will hold the main data. Section ".SCOV$Z" will only hold a variable ___stop___sancov_guards. When linking, they will be merged sorted by the characters after the $, so we can use the pointers of the variables ___[start|stop]___sancov_guard to know the actual range of addresses of that section. In this diff, I updated instrumentation to include all the guard arrays in section ".SCOV$M". Differential Revision: https://reviews.llvm.org/D28434 llvm-svn: 293987
* AMDGPU: Fold fneg into fmin/fmax_legacyMatt Arsenault2017-02-033-2/+103
| | | | llvm-svn: 293972
* DebugInfo: ensure type and namespace names are included in pubnames/pubtypes ↵David Blaikie2017-02-036-14/+125
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | even when they are only present in type units While looking to add support for placing singular types (types that will only be emitted in one place (such as attached to a strong vtable or explicit template instantiation definition)) not in type units (since type units have overhead) I stumbled across that change causing an increase in pubtypes. Turns out we were missing some types from type units if they were only referenced from other type units and not from the debug_info section. This fixes that, following GCC's line of describing the offset of such entities as the CU die (since there's no compile unit-relative offset that would describe such an entity - they aren't in the CU). Also like GCC, this change prefers to describe the type stub within the CU rather than the "just use the CU offset" fallback where possible. This may give the DWARF consumer some opportunity to find the extra info in the type stub - though I'm not sure GDB does anything with this currently. The size of the pubnames/pubtypes sections now match exactly with or without type units enabled. This nearly triples (+189%) the pubtypes section for a clang self-host and grows pubnames by 0.07% (without compression). For a total of 8% increase in debug info sections of the objects of a Split DWARF build when using type units. llvm-svn: 293971
* [ThinLTO] Add an auto-hide featureMehdi Amini2017-02-0312-52/+127
| | | | | | | | | | | | | | | When a symbol is not exported outside of the DSO, it is can be hidden. Usually we try to internalize as much as possible, but it is not always possible, for instance a symbol can be referenced outside of the LTO unit, or there can be cross-module reference in ThinLTO. This is a recommit of r293912 after fixing build failures, and a recommit of r293918 after fixing LLD tests. Differential Revision: https://reviews.llvm.org/D28978 llvm-svn: 293970
* [X86] Mark 256-bit and 512-bit INSERT_SUBVECTOR operations as legal and ↵Craig Topper2017-02-031-27/+6
| | | | | | remove the custom lowering. llvm-svn: 293969
* AMDGPU: Fold fneg into fminnum/fmaxnumMatt Arsenault2017-02-032-0/+294
| | | | llvm-svn: 293968
* llvm-readobj: fix next note entry calculation and print unknown note typesKonstantin Zhuravlyov2017-02-022-2/+10
| | | | | | Differential Revision: https://reviews.llvm.org/D29131 llvm-svn: 293964
* AMDGPU: Check if users of fneg can fold modsMatt Arsenault2017-02-026-80/+566
| | | | | | In multi-use cases this can save a few instructions. llvm-svn: 293962
* Revert "[ThinLTO] Add an auto-hide feature"Mehdi Amini2017-02-0212-127/+52
| | | | | | This reverts commit r293918, one lld test does not pass. llvm-svn: 293961
* [lto] added getCOFFWeakExternalFallbackBob Haarman2017-02-021-0/+16
| | | | | | | | | | | | | | Summary: This allows clients of the LTO API to determine the name of the fallback symbol for COFF weak externals. Reviewers: pcc Reviewed By: pcc Subscribers: mehdi_amini Differential Revision: https://reviews.llvm.org/D29365 llvm-svn: 293960
* [lto] add getLinkerOpts()Bob Haarman2017-02-024-29/+69
| | | | | | | | | | | | Summary: Some compilers, including MSVC and Clang, allow linker options to be specified in source files. In the legacy LTO API, there is a getLinkerOpts() method that returns linker options for the bitcode module being processed. This change adds that method to the new API, so that the COFF linker can get the right linker options when using the new LTO API. Reviewers: pcc, ruiu, mehdi_amini, tejohnson Reviewed By: pcc Differential Revision: https://reviews.llvm.org/D29207 llvm-svn: 293950
* [X86] Fix some Clang-tidy modernize and Include What You Use warnings; other ↵Eugene Zelenko2017-02-0213-151/+240
| | | | | | minor fixes (NFC). llvm-svn: 293949
* Relax test so that it passes on OS X.Rafael Espindola2017-02-022-2/+2
| | | | llvm-svn: 293946
* [X86] Avoid sorted order check in release buildsReid Kleckner2017-02-021-4/+6
| | | | | | | Effectively reverts r290248 and fixes the unused function warning with ifndef NDEBUG. llvm-svn: 293945
* [X86] Move turning 256-bit INSERT_SUBVECTORS into BLENDI from legalize to ↵Craig Topper2017-02-022-54/+45
| | | | | | | | DAG combine. On one test this seems to have given more chance for DAG combine to do other INSERT_SUBVECTOR/EXTRACT_SUBVECTOR combines before the BLENDI was created. Looks like we can still improve more by teaching DAG combine to optimize INSERT_SUBVECTOR/EXTRACT_SUBVECTOR with BLENDI. llvm-svn: 293944
* [CodeGen] Remove dead call-or-prologue enum from CCStateReid Kleckner2017-02-023-42/+10
| | | | | | | This enum has been dead since Olivier Stannard re-implemented ARM byval handling in r202985 (2014). llvm-svn: 293943
* [PGO] internal option cleanupsXinliang David Li2017-02-024-24/+59
| | | | | | | | | | 1. Added comments for options 2. Added missing option cl::desc field 3. Uniified function filter option for graph viewing. Now PGO count/raw-counts share the same filter option: -view-bfi-func-name=. llvm-svn: 293938
* Change how we handle section symbols on ELF.Rafael Espindola2017-02-0218-140/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | On ELF every section can have a corresponding section symbol. When in an assembly file we have .quad .text the '.text' refers to that symbol. The way we used to handle them is to leave .text an undefined symbol until the very end when the object writer would map them to the actual section symbol. The problem with that is that anything before the end would see an undefined symbol. This could result in bad diagnostics (test/MC/AArch64/label-arithmetic-diags-elf.s), or incorrect results when using the asm streamer (est/MC/Mips/expansion-jal-sym-pic.s). Fixing this will also allow using the section symbol earlier for setting sh_link of SHF_METADATA sections. This patch includes a few hacks to avoid changing our behaviour when handling conflicts between section symbols and other symbols. I reported pr31850 to track that. llvm-svn: 293936
* [ARM] Classification Improvements to ARM Sched-Model. NFCI.Javed Absar2017-02-026-58/+288
| | | | | | | | | | | | This is the second in the series of patches to enable adding of machine sched-models for ARM processors easier and compact. This patch focuses on integer instructions and adds missing sched definitions. Reviewers: rovka, rengolin Differential Revision: https://reviews.llvm.org/D29127 llvm-svn: 293935
* [LiveRangeEdit] Don't mess up with LiveInterval when a new vreg is created.Quentin Colombet2017-02-021-3/+10
| | | | | | | | | | | | | | | | | | In r283838, we added the capability of splitting unspillable register. When doing so we had to make sure the split live-ranges were also unspillable and we did that by marking the related live-ranges in the delegate method that is called when a new vreg is created. However, by accessing the live-range there, we also triggered their lazy computation (LiveIntervalAnalysis::getInterval) which is not what we want in general. Indeed, later code in LiveRangeEdit is going to build the live-ranges this lazy computation may mess up that computation resulting in assertion failures. Namely, the createEmptyIntervalFrom method expect that the live-range is going to be empty, not computed. Thanks to Mikael Holmén <mikael.holmen@ericsson.com> for noticing and reporting the problem. llvm-svn: 293934
* [Hexagon] Adding opExtentBits and opExtentAlign to GPrel instructionsKrzysztof Parzyszek2017-02-025-16/+66
| | | | | | Patch by Colin LeMahieu. llvm-svn: 293933
* [X86] Add costs for non-AVX512 single-source permutation integer shufflesMichael Kuperstein2017-02-022-23/+36
| | | | | | Differential Revision: https://reviews.llvm.org/D29416 llvm-svn: 293932
* [Hexagon] Fix relocation kind for extended predicated callsKrzysztof Parzyszek2017-02-022-5/+13
| | | | | | Patch by Sid Manning. llvm-svn: 293931
* [Hexagon] Remove A4_ext_* pseudo instructionsKrzysztof Parzyszek2017-02-026-38/+35
| | | | | | Patch by Colin LeMahieu. llvm-svn: 293929
* [libFuzzer] reorganize the tracing code to make it easier to experiment with ↵Kostya Serebryany2017-02-022-19/+36
| | | | | | inlined coverage instrumentation. NFC llvm-svn: 293928
* [Hexagon] Fix insertBranch for loops with multiple ENDLOOP instructionsKrzysztof Parzyszek2017-02-022-18/+103
| | | | llvm-svn: 293925
* [WebAssembly] Add instruction definitions for drop and get/set_global.Dan Gohman2017-02-023-0/+18
| | | | llvm-svn: 293922
* [PGO] make graph view internal options available for all buildsXinliang David Li2017-02-024-25/+0
| | | | | | Differential Revision: https://reviews.llvm.org/D29259 llvm-svn: 293921
* [libFuzzer] Properly handle exceptions with UnhandledExceptionFilter.Marcos Pividori2017-02-021-5/+2
| | | | | | | | | | | | | | | | | | | | | | | Use SetUnhandledExceptionFilter instead of AddVectoredExceptionHandler. According to the documentation on Structured Exception Handling, this is the order for the Exception Dispatching: + If the process is being debugged, the system notifies the debugger. + The Vectored Exception Handler is called. + The system attempts to locate a frame-based exception handler by searching the stack frames of the thread in which the exception occurred. + If no frame-based handler can be found, the UnhandledExceptionFilter filter is called. + Default handling based on the exception type. So, similar to what we do for asan, we should use SetUnhandledExceptionFilter instead of AddVectoredExceptionHandler, so user's code that is being fuzzed can execute frame-based exception handlers before we catch them . We want to catch unhandled exceptions, not all the exceptions. Differential Revision: https://reviews.llvm.org/D29462 llvm-svn: 293920
* FunctionImport: Remove the -disable-force-link-odr flag and change ↵Peter Collingbourne2017-02-023-25/+7
| | | | | | | | | | importFunctions to never force link. This removes some functionality that was only being used by tests. Differential Revision: https://reviews.llvm.org/D29439 llvm-svn: 293919
* [ThinLTO] Add an auto-hide featureMehdi Amini2017-02-0212-52/+127
| | | | | | | | | | | | | | When a symbol is not exported outside of the DSO, it is can be hidden. Usually we try to internalize as much as possible, but it is not always possible, for instance a symbol can be referenced outside of the LTO unit, or there can be cross-module reference in ThinLTO. This is a recommit of r293912 after fixing build failures. Differential Revision: https://reviews.llvm.org/D28978 llvm-svn: 293918
* [X86][XOP] Added FIXME comments to missed shuffle combine opportunitiesSimon Pilgrim2017-02-021-0/+2
| | | | | | Requested by @silvas llvm-svn: 293916
* Revert "In visitSTORE, always use FindBetterChain, rather than only when ↵Nirav Dave2017-02-0272-2046/+2226
| | | | | | | | | UseAA is enabled." This reverts commit r293893 which is miscompiling lua on ARM and bootstrapping for x86-windows. llvm-svn: 293915
* Revert "[ThinLTO] Add an auto-hide feature"Mehdi Amini2017-02-0212-123/+48
| | | | | | This reverts r293912, bots are broken. llvm-svn: 293914
* [ThinLTO] Add an auto-hide featureMehdi Amini2017-02-0212-48/+123
| | | | | | | | | | | | When a symbol is not exported outside of the DSO, it is can be hidden. Usually we try to internalize as much as possible, but it is not always possible, for instance a symbol can be referenced outside of the LTO unit, or there can be cross-module reference in ThinLTO. Differential Revision: https://reviews.llvm.org/D28978 llvm-svn: 293912
* [ThinLTO] PrintStatistics when we exit early for thinlto-index-onlyTeresa Johnson2017-02-022-0/+10
| | | | | | | | | | | | | | Summary: This is necessary to get stats from the ThinLink printed before the early exit when compiling in a distributed build. Reviewers: mehdi_amini Subscribers: Prazek, llvm-commits Differential Revision: https://reviews.llvm.org/D29461 llvm-svn: 293908
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