summaryrefslogtreecommitdiffstats
path: root/llvm/docs
Commit message (Collapse)AuthorAgeFilesLines
* Correct GFX9 processor names.Tony Tye2017-07-071-3/+1
| | | | | | Differential Revision: https://reviews.llvm.org/D33736 llvm-svn: 307353
* [lit] Modify LIT to accept environment variable LIT_FILTER to select tests.George Karpenkov2017-07-071-0/+7
| | | | | | | | | This is especially useful when lit is invoked indirectly by the build system, and additional arguments can not be easily specified. Differential Revision: https://reviews.llvm.org/D35091 llvm-svn: 307339
* remove an unused empty file.Chris Lattner2017-07-061-0/+0
| | | | llvm-svn: 307299
* Made a script to build docker images easier to use.Ilya Biryukov2017-07-061-7/+1
| | | | | | | | | | | | | | | | | | Summary: - Removed double indirection via command-line args (i.e. two `--` options of `build_docker_image.sh`). - Added a comment on how to build 2-stage clang install into the `build_docker_image.sh`, it used to be only in the `docs/Docker.rst`. Reviewers: klimek, mehdi_amini Reviewed By: klimek Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D35050 llvm-svn: 307256
* Added more info on silent master to the doc.Galina Kistanova2017-07-051-0/+3
| | | | llvm-svn: 307200
* fix trivial typos in documents; NFCHiroshi Inoue2017-07-022-2/+2
| | | | llvm-svn: 306975
* Completely disable git/svn version checking if not needed.Rafael Espindola2017-06-301-3/+4
| | | | | | | | | | Working with git on a branch I find it really annoying that committing a change causes ninja to think that stuff needs to be rebuilt. With this change at least nothing in llvm needs to be rebuild when something is committed. llvm-svn: 306858
* Fixed misplaced table border in the docs.Ilya Biryukov2017-06-301-1/+1
| | | | llvm-svn: 306811
* Added Dockerfiles to build clang from sources.Ilya Biryukov2017-06-302-0/+209
| | | | | | | | | | | | Reviewers: klimek, chandlerc, mehdi_amini Reviewed By: klimek, mehdi_amini Subscribers: mehdi_amini, jlebar, llvm-commits Differential Revision: https://reviews.llvm.org/D34197 llvm-svn: 306810
* Remove the BBVectorize pass.Chandler Carruth2017-06-301-3/+8
| | | | | | | | | | | | | It served us well, helped kick-start much of the vectorization efforts in LLVM, etc. Its time has come and past. Back in 2014: http://lists.llvm.org/pipermail/llvm-dev/2014-November/079091.html Time to actually let go and move forward. =] I've updated the release notes both about the removal and the deprecation of the corresponding C API. llvm-svn: 306797
* Add a C API section to the release notes.Eric Christopher2017-06-301-0/+5
| | | | llvm-svn: 306777
* llvm-nm: Add support for symbol demangling (-C/--demangle)Sam Clegg2017-06-291-3/+0
| | | | | | Differential Revision: https://reviews.llvm.org/D34668 llvm-svn: 306718
* fix various typosSylvestre Ledru2017-06-263-12/+12
| | | | llvm-svn: 306262
* Remove test commit change.Tanya Lattner2017-06-241-1/+1
| | | | llvm-svn: 306223
* test commitTanya Lattner2017-06-241-1/+1
| | | | llvm-svn: 306222
* [docs] As of binutils 2.21.51.0.2, ld.bfd supports plugins too, represent ↵Ekaterina Vaartis2017-06-231-11/+9
| | | | | | | | this in docs PR#32760 llvm-svn: 306102
* Define behavior of "stack-probe-size" attribute when inlining.whitequark2017-06-221-0/+15
| | | | | | | | | | Also document the attribute, since "probe-stack" already is. Reviewed By: majnemer Differential Revision: https://reviews.llvm.org/D34528 llvm-svn: 306069
* Add a "probe-stack" attributewhitequark2017-06-211-0/+13
| | | | | | | | | | | | | This attribute is used to ensure the guard page is triggered on stack overflow. Stack frames larger than the guard page size will generate a call to __probestack to touch each page so the guard page won't be skipped. Reviewed By: majnemer Differential Revision: https://reviews.llvm.org/D34386 llvm-svn: 305939
* [Doc] Fix getelementptr description about argumentsDavid Blaikie2017-06-192-13/+13
| | | | | | | | | | | | | | | | | Section "Arguments" of `getelementptr` [1] says the first argument is a type, the second argument is a pointer or a vector of pointers, and is the base address to start from. Update `getelementptr` FAQ [2] accordingly, based on discussion with David on the mailing list [3]. [1] http://llvm.org/docs/LangRef.html#getelementptr-instruction [2] http://llvm.org/docs/GetElementPtr.html [3] http://lists.llvm.org/pipermail/llvm-dev/2017-June/114294.html Patch by Wei-Ren Chen! Differential Revision: https://reviews.llvm.org/D34325 llvm-svn: 305662
* [Atomics] Rename and change prototype for atomic memcpy intrinsicDaniel Neilson2017-06-161-33/+37
| | | | | | | | | | | | | | | | | | Summary: Background: http://lists.llvm.org/pipermail/llvm-dev/2017-May/112779.html This change is to alter the prototype for the atomic memcpy intrinsic. The prototype itself is being changed to more closely resemble the semantics and parameters of the llvm.memcpy intrinsic -- to ease later combination of the llvm.memcpy and atomic memcpy intrinsics. Furthermore, the name of the atomic memcpy intrinsic is being changed to make it clear that it is not a generic atomic memcpy, but specifically a memcpy is unordered atomic. Reviewers: reames, sanjoy, efriedma Reviewed By: reames Subscribers: mzolotukhin, anna, llvm-commits, skatkov Differential Revision: https://reviews.llvm.org/D33240 llvm-svn: 305558
* docs/Phabricator: Better git examples to produce full context patchesMatthias Braun2017-06-151-1/+2
| | | | llvm-svn: 305515
* [Doc] Document prof metadata in LangRefTeresa Johnson2017-06-152-0/+80
| | | | | | | | | | | | | | Summary: Points to existing documentation for branch_weights and function_entry_count, and adds an example for VP value profile metadata. Reviewers: davidxl, reames Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D34218 llvm-svn: 305475
* Align definition of DW_OP_plus with DWARF spec [3/3]Florian Hahn2017-06-141-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch is part of 3 patches that together form a single patch, but must be introduced in stages in order not to break things. The way that LLVM interprets DW_OP_plus in DIExpression nodes is basically that of the DW_OP_plus_uconst operator since LLVM expects an unsigned constant operand. This unnecessarily restricts the DW_OP_plus operator, preventing it from being used to describe the evaluation of runtime values on the expression stack. These patches try to align the semantics of DW_OP_plus and DW_OP_minus with that of the DWARF definition, which pops two elements off the expression stack, performs the operation and pushes the result back on the stack. This is done in three stages: • The first patch (LLVM) adds support for DW_OP_plus_uconst. • The second patch (Clang) contains changes all its uses from DW_OP_plus to DW_OP_plus_uconst. • The third patch (LLVM) changes the semantics of DW_OP_plus and DW_OP_minus to be in line with its DWARF meaning. This patch includes the bitcode upgrade from legacy DIExpressions. Patch by Sander de Smalen. Reviewers: echristo, pcc, aprantl Reviewed By: aprantl Subscribers: fhahn, javed.absar, aprantl, llvm-commits Differential Revision: https://reviews.llvm.org/D33894 llvm-svn: 305386
* Align definition of DW_OP_plus with DWARF spec [1/3]Florian Hahn2017-06-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Summary: This patch is part of 3 patches that together form a single patch, but must be introduced in stages in order not to break things. The way that LLVM interprets DW_OP_plus in DIExpression nodes is basically that of the DW_OP_plus_uconst operator since LLVM expects an unsigned constant operand. This unnecessarily restricts the DW_OP_plus operator, preventing it from being used to describe the evaluation of runtime values on the expression stack. These patches try to align the semantics of DW_OP_plus and DW_OP_minus with that of the DWARF definition, which pops two elements off the expression stack, performs the operation and pushes the result back on the stack. This is done in three stages: • The first patch (LLVM) adds support for DW_OP_plus_uconst. • The second patch (Clang) contains changes all its uses from DW_OP_plus to DW_OP_plus_uconst. • The third patch (LLVM) changes the semantics of DW_OP_plus and DW_OP_minus to be in line with its DWARF meaning. This patch includes the bitcode upgrade from legacy DIExpressions. Patch by Sander de Smalen. Reviewers: pcc, echristo, aprantl Reviewed By: aprantl Subscribers: fhahn, aprantl, javed.absar, llvm-commits Differential Revision: https://reviews.llvm.org/D33892 llvm-svn: 305304
* [Lexicon] Add GVNBrian Gesiak2017-06-131-0/+7
| | | | | | | | | | | | | | Summary: Add a lexicon entry for global value numbering. Reviewers: davide, majnemer Reviewed By: davide Subscribers: llvm-commits, inouehrs Differential Revision: https://reviews.llvm.org/D33664 llvm-svn: 305270
* Update LangRef for PR27284.Adrian Prantl2017-06-121-14/+14
| | | | | | And reverse the ownership between DICompileUnit and DISubprogram. llvm-svn: 305254
* IR: Replace the "Linker Options" module flag with "llvm.linker.options" ↵Peter Collingbourne2017-06-121-34/+31
| | | | | | | | | | named metadata. The new metadata is easier to manipulate than module flags. Differential Revision: https://reviews.llvm.org/D31349 llvm-svn: 305227
* Rename llvm-pdbdump -> llvm-pdbutil.Zachary Turner2017-06-091-0/+4
| | | | | | | | | | This is to reflect the evolving nature of the tool as being useful for more than just dumping PDBs, as it can do many other things. Differential Revision: https://reviews.llvm.org/D34062 llvm-svn: 305106
* Update release notes for BinaryFormat library.Zachary Turner2017-06-081-0/+7
| | | | | | Differential Revision: https://reviews.llvm.org/D34001 llvm-svn: 304995
* Correct AMDGPU Hawaii and Kabini target namesTony Tye2017-06-081-3/+3
| | | | | | | | The FirePro and Radeon versions of Hawaii have different 64 bit floating point configurations so use distinct target names for them. Rename the target name for Kabini to accommodate. Differential Revision: https://reviews.llvm.org/D34016 llvm-svn: 304959
* Try to work around possible bugs in version of Shpinx on buildserver.Tony Tye2017-06-071-6/+6
| | | | | | | | Builds sucessfully with Sphinx v1.5.5 Differential Revision: https://reviews.llvm.org/D33736 llvm-svn: 304853
* Add documentation for various aspects of the AMDGPU backend.Tony Tye2017-06-071-1/+1
| | | | | | | | | Remove extra tabs. Builds sucessfully with Sphinx v1.5.5 Differential Revision: https://reviews.llvm.org/D33736 llvm-svn: 304848
* Add documentation for various aspects of the AMDGPU backend.Tony Tye2017-06-064-172/+3468
| | | | | | Differential Revision: https://reviews.llvm.org/D33736 llvm-svn: 304831
* [docs] Make it clear shifts yield poison when shift amount >= bitwidthNuno Lopes2017-06-061-18/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some InstCombine optimizations already rely on the result being poison rather than undef. For example, the following rewrite is wrong if undef is used: ; (1 << Y) * X -> X << Y %Op0 = shl 1, %Y %r = mul %Op0, %Op1 => %r = shl %Op1, %Y ERROR: Mismatch in values for i4 %r Example: i4 %Y = 0x8 (8, -8) i4 %Op0 = 0x0 (0) i4 %Op1 = 0x0 (0) source: 0x0 (0) target: 0x1 (1) The optimization is correct if poison is returned instead: http://rise4fun.com/Alive/ygX Differential Revision: https://reviews.llvm.org/D33654 llvm-svn: 304780
* [docs] Update name of vectorization interleave flag.Eli Friedman2017-05-311-3/+3
| | | | llvm-svn: 304370
* [Docs] Add VectorizationPlan to docs/Proposals.Ayal Zaks2017-05-293-0/+196
| | | | | | | | Following the request made in https://reviews.llvm.org/D32871, the general documentation of the Vectorization Plan is hereby placed under docs/Proposals. llvm-svn: 304161
* Add constrained intrinsics for some libm-equivalent operationsAndrew Kaylor2017-05-251-5/+460
| | | | | | Differential revision: https://reviews.llvm.org/D32319 llvm-svn: 303922
* Update the documentation and CMake file for Visual Studio generators.Aaron Ballman2017-05-251-0/+4
| | | | | | By default, CMake uses a 32-bit toolchain, even when on a 64-bit platform targeting a 64-bit build. However, due to the size of the binaries involved, this can cause linker instabilities (such as the linker running out of memory). Guide people to the correct solution to get CMake to use the native toolchain. llvm-svn: 303912
* Delete an obsolete paragraph in LangRef.Adrian Prantl2017-05-251-6/+0
| | | | llvm-svn: 303896
* Add some tips on benchmarking.Rafael Espindola2017-05-242-0/+88
| | | | llvm-svn: 303769
* [LV] Report multiple reasons for not vectorizing under allowExtraAnalysisAyal Zaks2017-05-231-1/+3
| | | | | | | | | | | | | | | | | | | | The default behavior of -Rpass-analysis=loop-vectorizer is to report only the first reason encountered for not vectorizing, if one is found, at which time the vectorizer aborts its handling of the loop. This patch allows multiple reasons for not vectorizing to be identified and reported, at the potential expense of additional compile-time, under allowExtraAnalysis which can currently be turned on by Clang's -fsave-optimization-record and opt's -pass-remarks-missed. Removed from LoopVectorizationLegality::canVectorize() the redundant checking and reporting if we CantComputeNumberOfIterations, as LAI::canAnalyzeLoop() also does that. This redundancy is caught by a lit test once multiple reasons are reported. Patch initially developed by Dror Barak. Differential Revision: https://reviews.llvm.org/D33396 llvm-svn: 303613
* [Docs] Fix LangRef links referred in GetElementPtr.rstGeorge Burgess IV2017-05-211-5/+7
| | | | | | | | Patch by chenwj! Differential Revision: https://reviews.llvm.org/D32929 llvm-svn: 303499
* Docs: Fix pluralization in CMake docsDuncan P. N. Exon Smith2017-05-201-2/+2
| | | | | | | Fixed "most platform" to read "most platforms", and changed "are not using the same" to "use different" as a drive-by. llvm-svn: 303487
* [docs] Small style nits.George Burgess IV2017-05-201-3/+3
| | | | llvm-svn: 303486
* Fix git command line in the Getting Started guide.Rui Ueyama2017-05-151-1/+1
| | | | | | | By default, git creates "llvm-project-20170507" directory, but we want to create "llvm-project" directory. llvm-svn: 303124
* [Doc] Document "Splat" in the lexiconSanjay Patel2017-05-121-0/+8
| | | | | | | | Patch by Wei-Ren Chen (陳韋任)! Differential Revision: https://reviews.llvm.org/D32964 llvm-svn: 302950
* [SPARC] Support 'f' and 'e' inline asm constraints.James Y Knight2017-05-121-0/+3
| | | | | | | | Based on patch by Patrick Boettcher and Chris Dewhurst. Differential Revision: https://reviews.llvm.org/D29116 llvm-svn: 302911
* [IR] Allow attributes with global variablesJaved Absar2017-05-111-2/+11
| | | | | | | | | | | | | This patch extends llvm-ir to allow attributes to be set on global variables. An RFC was sent out earlier by my colleague James Molloy: http://lists.llvm.org/pipermail/cfe-dev/2017-March/053100.html A key part of that proposal was to extend LLVM-IR to carry attributes on global variables. This generic feature could be useful for multiple purposes. In our present context, it would be useful to carry user specified sections for bss/rodata/data. Reviewed by: Jonathan Roelofs, Reid Kleckner Differential Revision: https://reviews.llvm.org/D32009 llvm-svn: 302794
* Introduce experimental generic intrinsics for horizontal vector reductions.Amara Emerson2017-05-091-0/+332
| | | | | | | | | | | | | | - This change allows targets to opt-in to using them instead of the log2 shufflevector algorithm. - The SLP and Loop vectorizers have the common code to do shuffle reductions factored out into LoopUtils, and now have a unified interface for generating reductions regardless of the preference of the target. LoopUtils now uses TTI to determine what kind of reductions the target wants to handle. - For CodeGen, basic legalization support is added. Differential Revision: https://reviews.llvm.org/D30086 llvm-svn: 302514
* Revert "Revert "CMake: Move sphinx detection into AddSphinxTarget.cmake""Tom Stellard2017-05-091-1/+1
| | | | | | | | This reverts commit r302054. Re-commit now that I have fixes for clang/lld. llvm-svn: 302499
OpenPOWER on IntegriCloud