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* [mips] Restrict the creation of compact branchesSimon Dardis2016-05-184-2/+47
| | | | | | | | | | | | | | | Restrict the creation of compact branches so that they meet the ISA encoding requirements. Notably do not permit $zero to be used as a operand for compact branches and ensure that some other branches fulfil the requirement that rs != rt. Fixup cases where $rs > $rt for bnec and beqc. Reviewers: dsanders, vkalintiris Differential Review: http://reviews.llvm.org/D20284 llvm-svn: 269893
* [Sparc] Add Soft Float supportChris Dewhurst2016-05-187-12/+59
| | | | | | | | | | This change adds support for software floating point operations for Sparc targets. This is the first in a set of patches to enable software floating point on Sparc. The next patch will enable the option to be used with Clang. Differential Revision: http://reviews.llvm.org/D19265 llvm-svn: 269892
* [Coverage] Ensure that coverage mapping data has an expected alignment in ↵Igor Kudrin2016-05-181-0/+7
| | | | | | | | | | | | | 'covmapping' files. Coverage mapping data is organized in a sequence of blocks, each of which is expected to be aligned by 8 bytes. This feature is used when reading those blocks, see VersionedCovMapFuncRecordReader::readFunctionRecords(). If a misaligned covearge mapping data has more than one block, it causes llvm-cov to fail. Differential Revision: http://reviews.llvm.org/D20285 llvm-svn: 269887
* [AVX512] Strengthen type constraints on my rounding mode inputs and some ↵Craig Topper2016-05-181-16/+23
| | | | | | immediate inputs. llvm-svn: 269886
* [AVX512] Strengthen type checks on the X86ISD::SELECT node. Saves over 800 ↵Craig Topper2016-05-182-6/+16
| | | | | | bytes in the DAG isel table by removing type checks for the condition operand which is always a vector or scalar of i1 matching the the number of elements in the other operands. llvm-svn: 269885
* [mips][microMIPS] Implement LH, LHE, LHU and LHUE instructions and add ↵Zlatko Buljan2016-05-184-18/+41
| | | | | | | | CodeGen support Differential Revision: http://reviews.llvm.org/D15418 llvm-svn: 269883
* [RuntimeDyld] Thread Error through some APIs, remove calls to ↵Lang Hames2016-05-184-58/+18
| | | | | | report_fatal_error. llvm-svn: 269881
* [codeview] Some cleanup of Symbol Records.Zachary Turner2016-05-172-16/+22
| | | | | | | | | | | | | | * Reworks the CVSymbolTypes.def to work similarly to TypeRecords.def. * Moves some enums from SymbolRecords.h to CodeView.h to maintain consistency with how we do type records. * Generalize a few simple things like the record prefix * Define the leaf enum and the kind enum similar to how we do with tyep records. Differential Revision: http://reviews.llvm.org/D20342 Reviewed By: amccarth, rnk llvm-svn: 269867
* Revert "[obj2yaml] [yaml2obj] Support MachO section and section_64Zachary Turner2016-05-171-24/+2
| | | | | | | | | structs" This reverts commits r269845, r269846, and r269850 as they introduce a crash in obj2yaml when trying to do a roundtrip. llvm-svn: 269865
* [WebAssembly] Rename $discard to $drop in the assembly output.Dan Gohman2016-05-174-13/+12
| | | | llvm-svn: 269862
* pdbdump: Print out more strcutures.Rui Ueyama2016-05-171-3/+39
| | | | | | | | | | I don't yet fully understand the meaning of these data strcutures, but at least it seems that their sizes and types are correct. With this change, we can read publics streams till end. Differential Revision: http://reviews.llvm.org/D20343 llvm-svn: 269861
* [DwarfDebug] Make tuning predicates private, should be used only in ctor.Paul Robinson2016-05-171-9/+10
| | | | llvm-svn: 269859
* [WebAssembly] Model the stack evaluation order more precisely.Dan Gohman2016-05-171-20/+40
| | | | | | | | | | | We currently don't represent get_local and set_local explicitly; they are just implied by virtual register use and def. This avoids a lot of clutter, but it does complicate stackifying: get_locals read their operands at their position in the stack evaluation order, rather than at their parent instruction. This patch adds code to walk the stack to determine the precise ordering, when needed. llvm-svn: 269854
* Delete deprecated function.Rafael Espindola2016-05-171-6/+0
| | | | llvm-svn: 269853
* [Object] Move isNotObjectErrorInvalidFileType out of header.Lang Hames2016-05-171-0/+18
| | | | llvm-svn: 269848
* [PM] Port DSE to the new pass managerJustin Bogner2016-05-174-322/+342
| | | | | | Patch by JakeVanAdrighem. Thanks! llvm-svn: 269847
* [obj2yaml][yaml2obj] Fixing dyld_info_command mappingsChris Bieneman2016-05-171-2/+4
| | | | | | Apparently I mucked up the mappings here, which was causing some binary differences in round tripping. llvm-svn: 269846
* [obj2yaml] [yaml2obj] Support MachO section and section_64 structsChris Bieneman2016-05-171-0/+20
| | | | | | This patch adds round trip support for MachO section structs. llvm-svn: 269845
* Remove unnecessary header include.Lang Hames2016-05-171-1/+0
| | | | llvm-svn: 269844
* [WebAssembly] Don't stackify calls past stack pointer modifications.Dan Gohman2016-05-172-20/+41
| | | | llvm-svn: 269843
* Debug Info: Introduce a DwarfDebug::UseDWARF2Bitfields flagAdrian Prantl2016-05-173-6/+13
| | | | | | | | | instead of having DwarfUnit query the debugger tuning options. Follow-up commmit to r269827. Thanks to Paul Robinson for pointing this out! llvm-svn: 269840
* minor cleanup /NFCXinliang David Li2016-05-171-4/+2
| | | | llvm-svn: 269839
* Revert r269828 "X86: Avoid using _chkstk when lowering WIN_ALLOCA instructions"Hans Wennborg2016-05-179-332/+38
| | | | | | Seems to have broken the Windows ASan bot. Reverting while investigating. llvm-svn: 269833
* [InstCombine] add another test for wrong icmp constant (PR27792)Sanjay Patel2016-05-171-1/+1
| | | | | | It doesn't matter if the comparison is unsigned; the inc/dec is always signed. llvm-svn: 269831
* [WebAssembly] Stackify induction variable increment instructions.Dan Gohman2016-05-171-28/+65
| | | | | | | This handles instructions where the defined register is also used, as in "x = x + 1". llvm-svn: 269830
* Simple refactoring /NFCXinliang David Li2016-05-171-8/+15
| | | | llvm-svn: 269829
* X86: Avoid using _chkstk when lowering WIN_ALLOCA instructionsHans Wennborg2016-05-179-38/+332
| | | | | | | | | | | | | | | This patch moves the expansion of WIN_ALLOCA pseudo-instructions into a separate pass that walks the CFG and lowers the instructions based on a conservative estimate of the offset between the stack pointer and the lowest accessed stack address. The goal is to reduce binary size and run-time costs by removing calls to _chkstk. While it doesn't fix all the code quality problems with inalloca calls, it's an incremental improvement for PR27076. Differential Revision: http://reviews.llvm.org/D20263 llvm-svn: 269828
* Debug Info: Don't emit bitfields in the DWARF4 format when tuning for GDB.Adrian Prantl2016-05-171-6/+11
| | | | | | | As discovered in PR27758, GDB does not fully support the DWARF 4 format. This patch ensures we always emit bitfields in the DWARF 2 when tuning for GDB. llvm-svn: 269827
* Fix an assert in SelectionDAGBuilder when processing inline asmRenato Golin2016-05-172-25/+30
| | | | | | | | | | | | | | When processing inline asm that contains errors, make sure we can recover gracefully by creating an UNDEF SDValue for the inline asm statement before returning from SelectionDAGBuilder::visitInlineAsm. This is necessary for consumers that don't exit on the first error that is emitted (e.g. clang) and that would assert later on. Fixes PR24071. Patch by Diana Picus. llvm-svn: 269811
* Reapply r269782 "[obj2yaml] [yaml2obj] Support for MachO load command ↵Chris Bieneman2016-05-171-6/+353
| | | | | | | | structures"" This adds support for all the MachO *_command structures. The load_command payloads still are not represented, but that will come next. llvm-svn: 269808
* [LCSSA] Use llvm::any_of instead of std::size_of.Davide Italiano2016-05-171-3/+2
| | | | | | The API is simpler. Suggested by David Blaikie! llvm-svn: 269800
* [InstCombine] fix constant to be signed for signed comparisonsSanjay Patel2016-05-171-1/+1
| | | | | | | This bug was introduced in r269728 and is the likely cause of many stage 2 ubsan bot failures. I'll add a test in a follow-up commit assuming this fixes things properly. llvm-svn: 269797
* [Guards] Add branch metadata when loweringSanjoy Das2016-05-171-0/+10
| | | | | | | Guards are expected to basically never fail. Reflect this in the branch probabilities in their lowered form. llvm-svn: 269791
* [SCEV] Be more aggressive in proving NUWSanjoy Das2016-05-171-7/+20
| | | | | | | | | | ... for AddRec's in loops for which SCEV is unable to compute a max tripcount. This is the NUW variant of r269211 and fixes PR27691. (Note: PR27691 is not a correct or stability bug, it was created to track a pending task). llvm-svn: 269790
* Revert "[obj2yaml] [yaml2obj] Support for MachO load command structures"Chris Bieneman2016-05-171-354/+6
| | | | | | This reverts commit r269782 because it broke bots with -fpermissive. llvm-svn: 269785
* Change llvm-objdump, llvm-nm and llvm-size when reporting an object file errorKevin Enderby2016-05-173-7/+18
| | | | | | | | | | | | | | | | | | | | | when the object is in an archive to use something like libx.a(foo.o) as part of the error message. Also changed llvm-objdump and llvm-size to be like llvm-nm and ignore non-object files in archives and not produce any error message. To do this Archive::Child::getAsBinary() was changed from ErrorOr<...> to Expected<...> then that was threaded up to its users. Converting this interface to Expected<> from ErrorOr<> does involve touching a number of places. To contain the changes for now the use of errorToErrorCode() is still used in one place yet to be fully converted. Again there some were bugs in the existing code that did not deal with the old ErrorOr<> return values.  So now with Expected<> since they must be checked and the error handled, I added a TODO and a comments for those. llvm-svn: 269784
* [obj2yaml] [yaml2obj] Support for MachO load command structuresChris Bieneman2016-05-171-6/+354
| | | | | | This adds support for all the MachO *_command structures. The load_command payloads still are not represented, but that will come next. llvm-svn: 269782
* [codeview] Test serialization of all known type recordsReid Kleckner2016-05-171-2/+2
| | | | | | | | | | | This just checks that we emit all type records once, and then after merging the type stream with no other type streams, we still emit every kind of type record. We could test the dumper output more closely, but that would make the test very brittle. Currently we're just getting coverage. llvm-svn: 269778
* Simplify handling of hidden stub.Rafael Espindola2016-05-178-70/+7
| | | | | | | | | Since r207518 they are printed exactly like non-hidden stubs on x86 and since r207517 on ARM. This means we can use a single set for all stubs in those platforms. llvm-svn: 269776
* [ThinLTO] Option to control path of distributed backend filesTeresa Johnson2016-05-171-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | Summary: Add support to control where files for a distributed backend (the individual index files and optional imports files) are created. This is invoked with a new thinlto-prefix-replace option in the gold plugin and llvm-lto. If specified, expects a string of the form "oldprefix:newprefix", and instead of generating these files in the same directory path as the corresponding bitcode file, will use a path formed by replacing the bitcode file's path prefix matching oldprefix with newprefix. Also add a new replace_path_prefix helper to Path.h in libSupport. Depends on D19636. Reviewers: joker.eph Subscribers: llvm-commits, joker.eph Differential Revision: http://reviews.llvm.org/D19644 llvm-svn: 269771
* [PM/LCSSA] Fix dependency list. Some passes are preserved, not required.Davide Italiano2016-05-171-2/+0
| | | | llvm-svn: 269768
* [LCSSA] Use any_of() to simplify the code. NFCI.Davide Italiano2016-05-171-9/+5
| | | | llvm-svn: 269767
* [RewriteStatepointsForGC] Remove obsolete assertionIgor Laevsky2016-05-171-8/+0
| | | | | | | | | | This is assertion is no longer necessary since we never record constants in the live set anyway. (They are never recorded in the initial live set, and constant bases are removed near line 2119) Differential Revision: http://reviews.llvm.org/D20293 llvm-svn: 269764
* [ARM] ARM mov InstAlias for MOVW lacks HasV6T2Renato Golin2016-05-171-1/+1
| | | | | | | | | | | | | | The movw instruction is only available in ARM state for V6T2 and above. The MOVi16 instruction has requirement HasV6T2 but the InstAlias for mov rd, imm where the operand is imm0_65535_expr:$imm does not. This means that movw can incorrectly be used in ARMv4 and ARMv5 by writing mov rd, 0x1234. The simple fix is to the requirement HasV6T2 to the InstAlias. Tests added to not-armv4.s. Patch by Peter Smith. llvm-svn: 269761
* Fix for PR27750. Correctly handle the case where the fallthrough block andDavid L Kreitzer2016-05-171-5/+9
| | | | | | | | target block are the same in getFallThroughMBB. Differential Revision: http://reviews.llvm.org/D20288 llvm-svn: 269760
* [InstCombine] Don't crash when trying to take an element of a ConstantExpr.Benjamin Kramer2016-05-171-0/+3
| | | | | | Fixes PR27786. llvm-svn: 269757
* [WebAssembly] Remove our copy of PrologEpilogInserterDerek Schuff2016-05-173-1060/+0
| | | | | | It's no longer needed after r269750 llvm-svn: 269756
* [mips][microMIPS] Implement BEQZC and BNEZC instructionsZoran Jovanovic2016-05-176-3/+77
| | | | | | Differential Revision: http://reviews.llvm.org/D15417 llvm-svn: 269755
* [mips] Compact branch policy control for MIPSR6Simon Dardis2016-05-171-8/+34
| | | | | | | | | | | | | | | This patch adds the commandline option -mips-compact-branches={never,optimal,always), which controls how LLVM generates compact branches for MIPS targets. By default, the compact branch policy is 'optimal' where LLVM will (hopefully) pick the optimal branch for any situation. The 'never' policy will disable the generation of compact branches and 'always' will generate compact branches wherever possible. Reviewers: dsanders Differential Review: http://reviews.llvm.org/D20167 llvm-svn: 269753
* [mips][microMIPS][DSP] Implement BALIGN, BITREV, BPOSGE32, CMP*, CMPGDU*, ↵Zlatko Buljan2016-05-173-19/+124
| | | | | | | | CMPGU* and CMPU* instructions Differential Revision: http://reviews.llvm.org/D16182 llvm-svn: 269752
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