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* [DAG] Fix an assertion failure caused by an invalid cast in method ↵Andrea Di Biagio2014-03-22
| | | | | | | | | | | | | | 'BuildVectorSDNode::isConstantSplat' This patch renames method 'isConstantSplat' as 'getConstantSplatValue' (mainly for consistency reasons), and rewrites its logic to ensure that we always perform a legal 'cast<ConstantSDNode>'. Added test shift-combine-crash.ll to verify that DAGCombiner no longer crashes with an assertion failure in the attempt to simplify a vector shift by a vector of all undef counts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204536 91177308-0d34-0410-b5e6-96231b3b80d8
* InstrProf: Move constructor to the headerDuncan P. N. Exon Smith2014-03-21
| | | | | | | | Fixes 80-column violation at the same time. <rdar://problem/15950346> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204516 91177308-0d34-0410-b5e6-96231b3b80d8
* InstrProf: Use move semantics with unique_ptrDuncan P. N. Exon Smith2014-03-21
| | | | | | <rdar://problem/15950346> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204512 91177308-0d34-0410-b5e6-96231b3b80d8
* InstrProf: Detect magic numbers in a more scalable wayDuncan P. N. Exon Smith2014-03-21
| | | | | | | | No functionality change. <rdar://problem/15950346> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204511 91177308-0d34-0410-b5e6-96231b3b80d8
* InstrProf: Actually detect bad headersDuncan P. N. Exon Smith2014-03-21
| | | | | | <rdar://problem/15950346> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204510 91177308-0d34-0410-b5e6-96231b3b80d8
* ProfileData: Avoid double underscores in header guardsJustin Bogner2014-03-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204501 91177308-0d34-0410-b5e6-96231b3b80d8
* InstrProf: Read raw binary profile in llvm-profdataDuncan P. N. Exon Smith2014-03-21
| | | | | | | | | | | | | | Read a raw binary profile that corresponds to a memory dump from the runtime profile. The test is a binary file generated from cfe/trunk/test/Profile/c-general.c with the new compiler-rt runtime and the matching text version of the input. It includes instructions on how to regenerate. <rdar://problem/15950346> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204496 91177308-0d34-0410-b5e6-96231b3b80d8
* ProfileData: Introduce InstrProfWriter using the naive text formatJustin Bogner2014-03-21
| | | | | | | | | | | This isn't a format we'll want to write out in practice, but moving it to the writer library simplifies llvm-profdata and isolates it from further changes to the format. This also allows us to update the tests to not rely on the text output format. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204489 91177308-0d34-0410-b5e6-96231b3b80d8
* ProfileData: Introduce the InstrProfReader interface and a text readerJustin Bogner2014-03-21
| | | | | | | | | | This introduces the ProfileData library and updates llvm-profdata to use this library for reading profiles. InstrProfReader is an abstract base class that will be subclassed for both the raw instrprof data from compiler-rt and the efficient instrprof format that will be used for PGO. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204482 91177308-0d34-0410-b5e6-96231b3b80d8
* [RuntimeDyld] Allow processRelocationRef to process more than one relocation ↵Juergen Ributzka2014-03-21
| | | | | | | | | | | | | entry at a time. Some targets require more than one relocation entry to perform a relocation. This change allows processRelocationRef to process more than one relocation entry at a time by passing the relocation iterator itself instead of just the relocation entry. Related to <rdar://problem/16199095> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204439 91177308-0d34-0410-b5e6-96231b3b80d8
* [Constant Hoisting] Make the constant materialization cost operand dependentJuergen Ributzka2014-03-21
| | | | | | | | | Extend the target hook to take also the operand index into account when calculating the cost of the constant materialization. Related to <rdar://problem/16381500> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204435 91177308-0d34-0410-b5e6-96231b3b80d8
* Object/COFF: Support large relocation table.Rui Ueyama2014-03-21
| | | | | | | | | | | | | | | | NumberOfRelocations field in COFF section table is only 16-bit wide. If an object has more than 65535 relocations, the number of relocations is stored to VirtualAddress field in the first relocation field, and a special flag (IMAGE_SCN_LNK_NRELOC_OVFL) is set to Characteristics field. In test we cheated a bit. I made up a test file so that it has IMAGE_SCN_LNK_NRELOC_OVFL flag but the number of relocations is much smaller than 65535. This is to avoid checking in a large test file just to test a file with many relocations. Differential Revision: http://llvm-reviews.chandlerc.com/D3139 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204418 91177308-0d34-0410-b5e6-96231b3b80d8
* Add an option to MCJIT to have it forward all sections to theLang Hames2014-03-20
| | | | | | | | | | | | | | | | | | | | | | | | RTDyldMemoryManager, regardless of whether it thinks they're "required for execution". Currently, RuntimeDyld only passes sections that are "required for execution" to the RTDyldMemoryManager, and takes "required for execution" to mean exactly "contains symbols or relocations". There are two problems with this: (1) It can drop sections with anonymous data that is referenced by code. (2) It leaves the JIT client no way to inspect interesting sections that aren't actually required to run the program (e.g dwarf sections). A test case is still in the works. Future work: We may want to replace this with a generic section filtering mechanism, but that will require more consideration. For now, this flag at least allows clients to volunteer to do the filtering themselves. Fixes <rdar://problem/15177691>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204398 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[Constant Hoisting] Extend coverage of the constant hoisting pass."Juergen Ributzka2014-03-20
| | | | | | I will break this up into smaller pieces for review and recommit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204393 91177308-0d34-0410-b5e6-96231b3b80d8
* [Constant Hoisting] Extend coverage of the constant hoisting pass.Juergen Ributzka2014-03-20
| | | | | | | | | This commit extends the coverage of the constant hoisting pass, adds additonal debug output and updates the function names according to the style guide. Related to <rdar://problem/16381500> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204389 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove LowerInvoke's obsolete "-enable-correct-eh-support" optionMark Seaborn2014-03-20
| | | | | | | | | | | | | | | This option caused LowerInvoke to generate code using SJLJ-based exception handling, but there is no code left that interprets the jmp_buf stack that the resulting code maintained (llvm.sjljeh.jblist). This option has been obsolete for a while, and replaced by SjLjEHPrepare. This leaves the default behaviour of LowerInvoke, which is to convert invokes to calls. Differential Revision: http://llvm-reviews.chandlerc.com/D3136 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204388 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead and incorrect code.Rafael Espindola2014-03-20
| | | | | | is_symlink was always false since it was using stat instead of lstat. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204361 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark alias symbols as microMIPS if necessary. Differential Revision: ↵Zoran Jovanovic2014-03-20
| | | | | | http://llvm-reviews.chandlerc.com/D3080 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204323 91177308-0d34-0410-b5e6-96231b3b80d8
* Object: Abstract out the determination of function line symbolsDavid Majnemer2014-03-20
| | | | | | No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204313 91177308-0d34-0410-b5e6-96231b3b80d8
* Look through variables when computing relocations.Rafael Espindola2014-03-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Given bar = foo + 4 .long bar MC would eat the 4. GNU as includes it in the relocation. The rule seems to be that a variable that defines a symbol is used in the relocation and one that does not define a symbol is evaluated and the result included in the relocation. Fixing this unfortunately required some other changes: * Since the variable is now evaluated, it would prevent the ELF writer from noticing the weakref marker the elf streamer uses. This patch then replaces that with a VariantKind in MCSymbolRefExpr. * Using VariantKind then requires us to look past other VariantKind to see .weakref bar,foo call bar@PLT doing this also fixes zed = foo +2 call zed@PLT so that is a good thing. * Looking past VariantKind means that the relocation selection has to use the fixup instead of the target. This is a reboot of the previous fixes for MC. I will watch the sanitizer buildbot and wait for a build before adding back the previous fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204294 91177308-0d34-0410-b5e6-96231b3b80d8
* Support: Add postincrement and include guards to LineIteratorJustin Bogner2014-03-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204279 91177308-0d34-0410-b5e6-96231b3b80d8
* COFF: Fix a typoDavid Majnemer2014-03-19
| | | | | | Introduced when I rebased my changes to use isReservedSectionNumber. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204260 91177308-0d34-0410-b5e6-96231b3b80d8
* Object: Provide a richer means of describing auxiliary symbolsDavid Majnemer2014-03-19
| | | | | | | | | | | | | | | | The current state of affairs has auxiliary symbols described as a big bag of bytes. This is less than satisfying, it detracts from the YAML file as being human readable. Instead, allow for symbols to optionally contain their auxiliary data. This allows us to have a much higher level way of describing things like weak symbols, function definitions and section definitions. This depends on D3105. Differential Revision: http://llvm-reviews.chandlerc.com/D3092 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204214 91177308-0d34-0410-b5e6-96231b3b80d8
* Object: Move auxiliary symbol definitions from llvm-readobjDavid Majnemer2014-03-19
| | | | | | | | | | | | Summary: These definitions are useful to other aspects of LLVM, move them out. Reviewers: rafael, nrieck, ruiu CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3105 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204213 91177308-0d34-0410-b5e6-96231b3b80d8
* Object: Clean up COFF.hDavid Majnemer2014-03-19
| | | | | | | | | The file violated the coding standard. Make it conform. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204212 91177308-0d34-0410-b5e6-96231b3b80d8
* llvm-profdata: Update to use the naive text format with function hashJustin Bogner2014-03-19
| | | | | | This also uses line_iterator to simplify the parsing logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204210 91177308-0d34-0410-b5e6-96231b3b80d8
* When destroying a StringMap, just iterate over the map and destroy the ↵Pete Cooper2014-03-19
| | | | | | contained elements. Don't reset them back to 0 as their values aren't needed any more. This results in ~StringMap() being mostly empty for POD types in BumpPtrAllocators git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204204 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Add back r203962, r204028 and r204059."Rafael Espindola2014-03-19
| | | | | | This reverts commit r204178. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204203 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Use the comp_dir of the referencing type units when building ↵David Blaikie2014-03-19
| | | | | | | | | | | | debug_line.dwo This isn't a complete fix - it falls back to non-comp_dir when multiple compile units are in play. Adding a map of comp_dir to table is part of the more general solution, but I gave up (in the short term) when I realized I'd also have to calculate the size of each type unit so as to produce correct DW_AT_stmt_list attributes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204202 91177308-0d34-0410-b5e6-96231b3b80d8
* Expose "noduplicate" attribute as a property for intrinsics.Eli Bendersky2014-03-18
| | | | | | | | | | | | | | The "noduplicate" function attribute exists to prevent certain optimizations from duplicating calls to the function. This is important on platforms where certain function call duplications are unsafe (for example execution barriers for CUDA and OpenCL). This patch makes it possible to specify intrinsics as "noduplicate" and translates that to the appropriate function attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204200 91177308-0d34-0410-b5e6-96231b3b80d8
* Object/COFF: Add function to check if section number is reserved one.Rui Ueyama2014-03-18
| | | | | | Differential Revision: http://llvm-reviews.chandlerc.com/D3103 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204199 91177308-0d34-0410-b5e6-96231b3b80d8
* C++ style commentsJim Grosbach2014-03-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204194 91177308-0d34-0410-b5e6-96231b3b80d8
* Darwin: Add assembler directives to create version-min load commands.Jim Grosbach2014-03-18
| | | | | | | | | | | | Allow object files to be tagged with a version-min load command for iOS or MacOSX. Teach macho-dump to understand the version-min load commands for testcases. rdar://11337778 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204190 91177308-0d34-0410-b5e6-96231b3b80d8
* MachO: Comment fields in the version_min load command.Jim Grosbach2014-03-18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204189 91177308-0d34-0410-b5e6-96231b3b80d8
* Add back r203962, r204028 and r204059.Rafael Espindola2014-03-18
| | | | | | | | This reverts commit r204137. This includes a fix for handling aliases of aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204178 91177308-0d34-0410-b5e6-96231b3b80d8
* [msan] Origin tracking with history.Evgeniy Stepanov2014-03-18
| | | | | | | | | LLVM part of MSan implementation of advanced origin tracking, when we record not only creation point, but all locations where an uninitialized value was stored to memory, too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204151 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r203962 and two revisions depending on it: r204028 and r204059.Alexander Kornienko2014-03-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The revision I'm reverting breaks handling of transitive aliases. This blocks us and breaks sanitizer bootstrap: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/builds/2651 (and checked locally by Alexey). This revision is the result of: svn merge -r204059:204058 -r204028:204027 -r203962:203961 . + the regression test added to test/MC/ELF/alias.s Another way to reproduce the regression with clang: $ cat q.c void a1(); void a2() __attribute__((alias("a1"))); void a3() __attribute__((alias("a2"))); void a1() {} $ ~/work/llvm-build/bin/clang-3.5-good -c q.c && mv q.o good.o && \ ~/work/llvm-build/bin/clang-3.5-bad -c q.c && mv q.o bad.o && \ objdump -t good.o bad.o good.o: file format elf64-x86-64 SYMBOL TABLE: 0000000000000000 l df *ABS* 0000000000000000 q.c 0000000000000000 l d .text 0000000000000000 .text 0000000000000000 l d .data 0000000000000000 .data 0000000000000000 l d .bss 0000000000000000 .bss 0000000000000000 l d .comment 0000000000000000 .comment 0000000000000000 l d .note.GNU-stack 0000000000000000 .note.GNU-stack 0000000000000000 l d .eh_frame 0000000000000000 .eh_frame 0000000000000000 g F .text 0000000000000006 a1 0000000000000000 g F .text 0000000000000006 a2 0000000000000000 g F .text 0000000000000006 a3 bad.o: file format elf64-x86-64 SYMBOL TABLE: 0000000000000000 l df *ABS* 0000000000000000 q.c 0000000000000000 l d .text 0000000000000000 .text 0000000000000000 l d .data 0000000000000000 .data 0000000000000000 l d .bss 0000000000000000 .bss 0000000000000000 l d .comment 0000000000000000 .comment 0000000000000000 l d .note.GNU-stack 0000000000000000 .note.GNU-stack 0000000000000000 l d .eh_frame 0000000000000000 .eh_frame 0000000000000000 g F .text 0000000000000006 a1 0000000000000000 g F .text 0000000000000006 a2 0000000000000000 g .text 0000000000000000 a3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204137 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Change DebugInfoFinder to use range-based loopsAlon Mishne2014-03-18
| | | | | | Also changes the iterators to return actual DI type over MDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204130 91177308-0d34-0410-b5e6-96231b3b80d8
* [C++11] Change the interface of getCOFF{Section,Relocation,Symbol} to make ↵Alexey Samsonov2014-03-18
| | | | | | | | | | | | | | it work with range-based for loops. Reviewers: ruiu Reviewed By: ruiu CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D3097 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204120 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch the type field in DIVariable and DIGlobalVariable over to DITypeRefs.Adrian Prantl2014-03-18
| | | | | | | | | This allows us to catch more opportunities for ODR-based type uniquing during LTO. Paired commit with CFE which updates some testcases to verify the new DIBuilder behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204106 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Avoid emitting standard opcode lengths in debug_line.dwo headers ↵David Blaikie2014-03-18
| | | | | | | | | where opcodes are never used anyway Introduce a slightly tighter wrapper around the header structure that handles this use case. (MCDwarfDwoLineTable) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204101 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Move line table zero-directory-index (compilation dir) handling ↵David Blaikie2014-03-17
| | | | | | | | | | | | into MCDwarf Our handling of compilation directory in DwarfDebug was broken (incorrectly using the 'last' compilation directory (that of the last CU in the metadata list) for all function emission in any CU). By moving this handling down into MCDwarf the issue is fixed as the compilation dir is tracked correctly per line table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204089 91177308-0d34-0410-b5e6-96231b3b80d8
* Really REALLY finish adding const to the MachineRegisterInfo iterator range ↵Owen Anderson2014-03-17
| | | | | | methods. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204074 91177308-0d34-0410-b5e6-96231b3b80d8
* Make DAGCombiner work on vector bitshifts with constant splat vectors.Matt Arsenault2014-03-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204071 91177308-0d34-0410-b5e6-96231b3b80d8
* Add one more const marker that I missed.Owen Anderson2014-03-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204070 91177308-0d34-0410-b5e6-96231b3b80d8
* DebugInfo: Use MC line table file entry uniquing for non-asm input as well.David Blaikie2014-03-17
| | | | | | | | | | | | | See r204027 for the precursor to this that applied to asm debug info. This required some non-obvious API changes to handle the case of asm output (we never go asm->asm so this didn't come up in r204027): the modification of the file/directory name by MCDwarfLineTableHeader needed to be reflected in the MCAsmStreamer caller so it could print the appropriate .file directive, so those StringRef parameters are now non-const ref (in/out) parameters rather than just const. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204069 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark MachineRegisterInfo's iterator range methods as const.Owen Anderson2014-03-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204067 91177308-0d34-0410-b5e6-96231b3b80d8
* Add iterator range definitions for the MachineRegisterInfo iterators.Owen Anderson2014-03-17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204066 91177308-0d34-0410-b5e6-96231b3b80d8
* [VectorLegalizer/X86] Don't unvectorize fp_to_uint for v8f32->v8i16Adam Nemet2014-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than LegalizeAction::Expand, this needs LegalizeAction::Promote to get promoted to fp_to_sint v8f32->v8i32. This is a legal operation on AVX. For that to work properly, we also need to teach the legalizer about the specific promotion required here. The default vector promotion uses bitcasting to a vector type of the same total size. We want to promote the vector element type, effectively widening the operation and then truncating the result. This is analogous to the current logic of how int_to_fp is promoted. The change also factors out some code from the int_to_fp promotion code to ValueType::widenIntegerVectorElementType. This is now shared between int_to_fp and fp_to_int. There is no longer need for the custom lowering of fp_to_sint f32->v8i16 in X86. It can now go through the new target-independent fp_to_*int promotion logic. I also checked that no other target uses Promote for these ops yet, so there shouldn't be any unexpected change in behavior. Fixes <rdar://problem/16202247> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204058 91177308-0d34-0410-b5e6-96231b3b80d8
* Consistent use of the noduplicate attribute.Eli Bendersky2014-03-17
| | | | | | | | | | The "noduplicate" attribute of call instructions is sometimes queried directly and sometimes through the cannotDuplicate() predicate. This patch streamlines all queries to use the cannotDuplicate() predicate. It also adds this predicate to InvokeInst, to mirror what CallInst has. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204049 91177308-0d34-0410-b5e6-96231b3b80d8
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