Commit Graph

6432 Commits

Author SHA1 Message Date
Mehdi Amini 4506e447c1 [doc] Add mention of the difference in optimization level between Release and RelWithDebInfo in Cmake.rst
This is surprising to many people.

llvm-svn: 290556
2016-12-26 23:42:12 +00:00
Amjad Aboud 7faeecc8f7 [DebugInfo] Added support for Checksum debug info feature.
Differential Revision: https://reviews.llvm.org/D27642

llvm-svn: 290514
2016-12-25 10:12:09 +00:00
Bryant Wong 430f98a58b Test commit.
llvm-svn: 290501
2016-12-24 17:26:38 +00:00
David Blaikie d21e08ee70 Fix missing '>' in docs (hopefully fixes bot error... )
llvm-svn: 290187
2016-12-20 17:43:48 +00:00
David Blaikie 063b272bbb Add some brief documentation about GDB pretty printers
llvm-svn: 290186
2016-12-20 17:33:58 +00:00
Daniel Jasper aec2fa352f Revert @llvm.assume with operator bundles (r289755-r289757)
This creates non-linear behavior in the inliner (see more details in
r289755's commit thread).

llvm-svn: 290086
2016-12-19 08:22:17 +00:00
Reid Kleckner e793966d80 Fix some remaining documentation references to MSVC 2013
MSVC 2015 has been the minimum supported version of VS since October.

Differential Revision: https://reviews.llvm.org/D25710

llvm-svn: 289854
2016-12-15 19:08:02 +00:00
Kostya Serebryany 9a038c188c [libFuzzer] doc update
llvm-svn: 289849
2016-12-15 18:47:22 +00:00
Pavel Labath 08c2e86802 Simplify format member detection in FormatVariadic
Summary:
This replaces the format member search, which was quite complicated, with a more
direct approach to detecting whether a class should be formatted using the
format-member method. Instead we use a special type llvm::format_adapter, which
every adapter must inherit from. Then the search can be simply implemented with
the is_base_of type trait.

Aside from the simplification, I like this way more because it makes it more
explicit that you are supposed to use this type only for adapter-like
formattings, and the other approach (format_provider overloads) should be used
as a default (a mistake I made when first trying to use this library).

The only slight change in behaviour here is that now choose the format-adapter
branch even if the format member invocation will fail to compile (e.g. because it is a
non-const member function and we are passing a const adapter), whereas
previously we would have gone on to search for format_providers for the type.
However, I think that is actually a good thing, as it probably means the
programmer did something wrong.

Reviewers: zturner, inglorion

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D27679

llvm-svn: 289795
2016-12-15 09:40:27 +00:00
Hal Finkel cb9f78e1c3 Make processing @llvm.assume more efficient by using operand bundles
There was an efficiency problem with how we processed @llvm.assume in
ValueTracking (and other places). The AssumptionCache tracked all of the
assumptions in a given function. In order to find assumptions relevant to
computing known bits, etc. we searched every assumption in the function. For
ValueTracking, that means that we did O(#assumes * #values) work in InstCombine
and other passes (with a constant factor that can be quite large because we'd
repeat this search at every level of recursion of the analysis).

Several of us discussed this situation at the last developers' meeting, and
this implements the discussed solution: Make the values that an assume might
affect operands of the assume itself. To avoid exposing this detail to
frontends and passes that need not worry about it, I've used the new
operand-bundle feature to add these extra call "operands" in a way that does
not affect the intrinsic's signature. I think this solution is relatively
clean. InstCombine adds these extra operands based on what ValueTracking, LVI,
etc. will need and then those passes need only search the users of the values
under consideration. This should fix the computational-complexity problem.

At this point, no passes depend on the AssumptionCache, and so I'll remove
that as a follow-up change.

Differential Revision: https://reviews.llvm.org/D27259

llvm-svn: 289755
2016-12-15 02:53:42 +00:00
Kostya Serebryany 8efb35b4cb [libFuzzer] document one more desired feature of a fuzz target
llvm-svn: 289622
2016-12-14 01:31:21 +00:00
Peter Collingbourne 235c275b20 IR, X86: Understand !absolute_symbol metadata on global variables.
Summary:
Attaching !absolute_symbol to a global variable does two things:
1) Marks it as an absolute symbol reference.
2) Specifies the value range of that symbol's address.
Teach the X86 backend to allow absolute symbols to appear in place of
immediates by extending the relocImm and mov64imm32 matchers. Start using
relocImm in more places where it is legal.

As previously proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/105800.html

Differential Revision: https://reviews.llvm.org/D25878

llvm-svn: 289087
2016-12-08 19:01:00 +00:00
Keno Fischer d4ea4c18f1 Revert "[CodeGen] Fix invalid DWARF info on Win64"
Appears to break on build bots. Reverting pending investigation.

llvm-svn: 289014
2016-12-08 01:56:23 +00:00
Keno Fischer 460218fb7d [CodeGen] Fix invalid DWARF info on Win64
The relocations for `DIEEntry::EmitValue` were wrong for Win64
(emitting FK_Data_4 instead of FK_SecRel_4). This corrects that
oversight so that the DWARF data is correct in Win64 COFF files.

Fixes PR15393.

Patch by Jameson Nash <jameson@juliacomputing.com> based on a patch
by David Majnemer.

Differential Revision: https://reviews.llvm.org/D21731

llvm-svn: 289013
2016-12-08 01:40:21 +00:00
Mehdi Amini 05049bed02 [doc] Add .arcconfig setup to the "how to work with a monorepo" section
llvm-svn: 288562
2016-12-03 01:04:40 +00:00
Peter Collingbourne bc0705240e IR: Move NumElements field from {Array,Vector}Type to SequentialType.
Now that PointerType is no longer a SequentialType, all SequentialTypes
have an associated number of elements, so we can move that information to
the base class, allowing for a number of simplifications.

Differential Revision: https://reviews.llvm.org/D27122

llvm-svn: 288464
2016-12-02 03:20:58 +00:00
Peter Collingbourne 4568158c4d IR: Change PointerType to derive from Type rather than SequentialType.
As proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/106640.html

This is for a couple of reasons:

- Values of type PointerType are unlike the other SequentialTypes (arrays
  and vectors) in that they do not hold values of the element type. By moving
  PointerType we can unify certain aspects of how the other SequentialTypes
  are handled.
- PointerType will have no place in the SequentialType hierarchy once
  pointee types are removed, so this is a necessary step towards removing
  pointee types.

Differential Revision: https://reviews.llvm.org/D26595

llvm-svn: 288462
2016-12-02 03:05:41 +00:00
Jonas Devlieghere cc7eafcf42 Revert 'Test commit as per developer policy'
llvm-svn: 288233
2016-11-30 08:24:43 +00:00
Jonas Devlieghere cd7a953720 Test commit as per developer policy
llvm-svn: 288232
2016-11-30 08:06:23 +00:00
Zachary Turner 3f0627c5e4 Add documentation for the PDB Module Info stream.
llvm-svn: 288205
2016-11-29 22:14:56 +00:00
Mehdi Amini c62b64a9e8 [docs] Typos and whitespace fixed in LTO docs.
While reading the LTO docs I fixed few small typos and whitespace issues.

Patch by: Jonas Devlieghere <jonas@devlieghere.com>

Differential Revision: https://reviews.llvm.org/D27196

llvm-svn: 288171
2016-11-29 18:00:31 +00:00
Yichao Yu 5abf14ba51 Fix doc of `llvm.bitreverse.iN`
Summary:
The return type is `iN` rather than always `i16`

Seems to be a typo in https://reviews.llvm.org/rL252878 .

Reviewers: jmolloy

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D27047

llvm-svn: 287769
2016-11-23 16:25:31 +00:00
Justin Lebar e8c45e9f50 [CUDA] Note in docs that you need to build with -lcudart on MacOS
-lcudart_static doesn't work.  We don't know why.

llvm-svn: 287715
2016-11-22 23:13:29 +00:00
Matthias Braun 9f15a79e5d Timer: Track name and description.
The previously used "names" are rather descriptions (they use multiple
words and contain spaces), use short programming language identifier
like strings for the "names" which should be used when exporting to
machine parseable formats.

Also removed a unused TimerGroup from Hexxagon.

Differential Revision: https://reviews.llvm.org/D25583

llvm-svn: 287369
2016-11-18 19:43:18 +00:00
Craig Topper faad4c30fa [Docs][TableGen] Remove reference to tablegen supporting octal integers. It doesn't and hasn't for at least 9 years.
llvm-svn: 287299
2016-11-18 02:28:50 +00:00
Justin Lebar 2d2292009f [CUDA] Update docs to indicate that MacOS is now supported.
llvm-svn: 287290
2016-11-18 00:42:00 +00:00
Justin Lebar 7880141d2b [CUDA] Update docs; CUDA 8.0 is supported as of a while ago.
llvm-svn: 287289
2016-11-18 00:41:40 +00:00
Dylan McKay 7293f9f7cc [ReleaseNotes] Mention the completion of the upstreaming of the AVR backend
llvm-svn: 287273
2016-11-17 22:26:09 +00:00
Kostya Serebryany 97ff7672aa [libFuzzer] better documentation for -fsanitize-coverage=trace-cmp
llvm-svn: 287240
2016-11-17 17:31:54 +00:00
Justin Lebar be0cfcc28a [CUDA] Update docs to indicate that clang now supports std::complex in CUDA mode.
The last remaining necessary change was D25403, landed as r287012.

llvm-svn: 287184
2016-11-17 01:03:42 +00:00
Dean Michael Berris 6eec7d4158 [XRay][docs] Define requirements on installed log handlers.
Summary:
We update the documentation to define what the requirements are for the
provided XRay log handler. This is to make it clear that the function
pointer provided must do internal synchronisation and that there are no
guarantees provided by XRay on when the function shall be invoked once
it has been installed as a log handler.

Reviewers: rSerge, rengolin

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D26651

llvm-svn: 287073
2016-11-16 02:18:23 +00:00
Matt Arsenault 1c8d933881 TableGen: Add operator !or
llvm-svn: 286936
2016-11-15 06:49:28 +00:00
Zachary Turner c316ddcd81 [PDB] Add documentation for the DBI Stream.
Differential Revision: https://reviews.llvm.org/D26552

llvm-svn: 286853
2016-11-14 17:59:28 +00:00
Zachary Turner 32e1edecba [PDB] Add documentation for the PDB Stream.
https://reviews.llvm.org/D26516

llvm-svn: 286852
2016-11-14 17:59:21 +00:00
Sanjoy Das dbc58d0015 [LangRef] Drop misleading anecdote
`shl nsw i8 1, i8 8` is poison, but `mul i8 1, i8 128` is not.

This was discussed previously here:
http://lists.llvm.org/pipermail/llvm-dev/2015-April/084195.html.  From
the discussion, it was not clear which semantics we want for `shl`, but
for now at least make the language reference more accurate.

llvm-svn: 286785
2016-11-13 23:40:40 +00:00
Sylvestre Ledru 8b59bb4da7 As we released 3.9, from the 4.0 release notes, points to version 3.9 instead of 3.8
llvm-svn: 286719
2016-11-12 10:39:09 +00:00
whitequark 4dcf92a27e [OCaml] Adapt to the new attribute C API.
llvm-svn: 286705
2016-11-12 03:38:30 +00:00
Kostya Serebryany 047485ef69 [libFuzzer] one more trophy
llvm-svn: 286703
2016-11-12 02:55:45 +00:00
Zachary Turner 11db2642fb [Support] Introduce llvm::formatv() function.
This introduces a new type-safe general purpose formatting
library.  It provides compile-time type safety, does not require
a format specifier (since the type is deduced), and provides
mechanisms for extending the format capability to user defined
types, and overriding the formatting behavior for existing types.

This patch additionally adds documentation for the API to the
LLVM programmer's manual.

Mailing List Thread:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/105836.html

Differential Revision: https://reviews.llvm.org/D25587

llvm-svn: 286682
2016-11-11 23:57:40 +00:00
Piotr Padlewski db8d7c8c2f NFC ProgrammersManual fix
llvm-svn: 286645
2016-11-11 22:12:15 +00:00
Peter Collingbourne d93620bf4d IR: Introduce inrange attribute on getelementptr indices.
If the inrange keyword is present before any index, loading from or
storing to any pointer derived from the getelementptr has undefined
behavior if the load or store would access memory outside of the bounds of
the element selected by the index marked as inrange.

This can be used, e.g. for alias analysis or to split globals at element
boundaries where beneficial.

As previously proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-July/102472.html

Differential Revision: https://reviews.llvm.org/D22793

llvm-svn: 286514
2016-11-10 22:34:55 +00:00
Zachary Turner 218ce83f0b [PDB] Begin adding documentation for the PDB file format.
Differential Revision: https://reviews.llvm.org/D26374

llvm-svn: 286491
2016-11-10 19:24:21 +00:00
Sanjoy Das 116df1328c [LangRef] Drop "experimental" caveat from operand bundles
I think we're past that point now.

llvm-svn: 286428
2016-11-10 06:21:10 +00:00
Dean Michael Berris 0f1ddfa846 [XRay][docs] Fix llvm snippets to be well-formed
llvm-svn: 286330
2016-11-09 02:12:13 +00:00
Mehdi Amini 0695e5b916 [doc] Remove explicit CMake version requirement for MSVC
The global minimum one is way past this version.

llvm-svn: 286328
2016-11-09 01:44:42 +00:00
Dean Michael Berris f3da16bff9 [XRay][Docs] Add documentation for XRay in LLVM
Summary:
This is the initial version of the documentation for how to use XRay as
it stands in LLVM, Clang, and compiler-rt. We leave some room for later
expansion mentioining what is work in progress and what could be
expected moving forward.

We also give a high level overview of future work that's both ongoing
and planned.

Reviewers: echristo, dblaikie, chandlerc

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D26386

llvm-svn: 286319
2016-11-09 00:24:58 +00:00
Kostya Serebryany b506466a8a [libFuzzer] minor docs update
llvm-svn: 286299
2016-11-08 21:57:37 +00:00
Sanjay Patel 843b171573 [docs] fix link to AMD manuals (PR30946)
llvm-svn: 286249
2016-11-08 16:49:24 +00:00
Lang Hames 19a2308afd [docs] Add a pointer to ExitOnError to the discussion of handleErrors in the
programmer's manual.

ExitOnError is often a better alternative to handleErrors for tool code. This
patch makes it easier to find the ExitOnError discussion when reading the
handleErrors section.

Thanks to Peter Collingbourne for the suggestion.

llvm-svn: 286167
2016-11-07 22:33:13 +00:00
Mehdi Amini 51d0f40d0a [doc] Add documentation about how to use a monorepo
llvm-svn: 286163
2016-11-07 22:14:09 +00:00