Commit Graph

4735 Commits

Author SHA1 Message Date
Daniel Dunbar bc4a4565de Fix some doc-os.
llvm-svn: 166290
2012-10-19 17:23:39 +00:00
Daniel Dunbar f1706edf5d lit: Allow XFAIL: lines to also refer to "features".
llvm-svn: 166224
2012-10-18 20:43:04 +00:00
Micah Villmow c8702fc261 Update the LangRef documentation for the per pointer address space support.
llvm-svn: 166201
2012-10-18 18:18:17 +00:00
Eli Bendersky 71a19ecd41 test commit: verifying access from new address
llvm-svn: 166197
2012-10-18 18:12:05 +00:00
Nadav Rotem 00cadb3ed7 Add a small example which shows a vectorizable loop with a non-pow-of-two count
llvm-svn: 166169
2012-10-18 05:46:16 +00:00
Nadav Rotem 89a452a9a6 Update the release notes about how to enable the loop vectorizer.
llvm-svn: 166123
2012-10-17 19:49:21 +00:00
Nadav Rotem ec92817e05 Update the release notes about the store-merge dag optimization.
llvm-svn: 166116
2012-10-17 18:35:21 +00:00
Nadav Rotem d9779f15cf Update the release notes about the new TargetTransformInfo API changes.
llvm-svn: 166115
2012-10-17 18:33:50 +00:00
Nadav Rotem c260387050 Update the release notes about the new loop vectorizer.
llvm-svn: 166113
2012-10-17 18:30:09 +00:00
Sean Silva 13c64c08c2 docs: Add link to integrated assembler HowTo
llvm-svn: 166106
2012-10-17 16:36:27 +00:00
Jan Wen Voung 69082be39c Fix a typo in bitcode docs, from 165814.
llvm-svn: 165944
2012-10-15 16:47:58 +00:00
Dmitri Gribenko 2378c5e230 Documentation: Lexicon.rst: add "BB Vectorization" and "TBAA".
llvm-svn: 165879
2012-10-13 17:34:49 +00:00
Jan Wen Voung 77c6c85e84 Add bitcode instruction encoding documentation for module version
0 and 1.  Followup to 165739.

llvm-svn: 165814
2012-10-12 18:13:17 +00:00
Sean Silva 3b942abef3 docs: Update example to conform to coding standards.
llvm-svn: 165782
2012-10-12 01:55:51 +00:00
Sean Silva b39f47b067 docs: Minor clean up of Phabricator documentation.
llvm-svn: 165779
2012-10-12 01:21:24 +00:00
Sean Silva d91ff4c942 docs: Add SphinxQuickstartTemplate.rst.
The intent of this document is to be the go-to document for anybody who
wants to write new documentation, but isn't familiar with Sphinx.

llvm-svn: 165775
2012-10-12 00:53:48 +00:00
Sean Silva d7802ad8a5 docs: Improve HowToSetUpLLVMStyleRTTI.
* Fix confusing explanation regarding abstract classes.

* Clarify auto-upcasting and why `Shape` doesn't need a `classof()`.

* Add section `Rules of Thumb` with some quick summary tips.

llvm-svn: 165768
2012-10-11 23:30:52 +00:00
Sean Silva d73b2818a1 docs: Update HowToSetUpLLVMStyleRTTI.
Recent changes to isa<>/dyn_cast<> have made unnecessary those classof()
of the form:

    static bool classof(const Foo *) { return true; }

Accordingly, remove mention of such classof() from the documentation.

llvm-svn: 165766
2012-10-11 23:30:41 +00:00
Manuel Klimek 8398126bdd Adds Phabricator documentation. This is a first step that answers many questions we have seen.
llvm-svn: 165736
2012-10-11 19:40:46 +00:00
NAKAMURA Takumi 66304d5411 GettingStarted.rst: s/&amp;/&/g
llvm-svn: 165690
2012-10-11 01:10:37 +00:00
NAKAMURA Takumi 4b71c205b9 GettingStarted.rst: Fix the label to DeveloperPolicy.html.
llvm-svn: 165689
2012-10-11 01:10:27 +00:00
Sean Silva 529ecebe4c docs: Propagate fix from r165632 to other docs.
There are only two other instances of using `.. code::` instead of
`..  code-block::`.

llvm-svn: 165633
2012-10-10 17:21:39 +00:00
Sean Silva 9ce5c06626 docs: Attempt to fix PR14053.
Hypothesis 1: use of `.. code::` directive instead of `.. code-block::`
is causing Sphinx to discard the block. On my machine, `.. code::`
renders fine. However, I don't think that `..  code::` is actually a
legit Sphinx directive. I believe that on my machine Sphinx is falling
back to just displaying it monospace with no syntax, whereas llvm.org's
Sphinx is just discarding it.

This is truly "remote debugging" since I can't reproduce this on my
machine. It would be helpful to be able to see the llvm.org Sphinx
build logs; if that's possible please let me know.

llvm-svn: 165632
2012-10-10 17:07:23 +00:00
Eric Christopher b0d9dec1ff Fix typo in docs.
llvm-svn: 165464
2012-10-08 23:54:10 +00:00
Micah Villmow 9cfc13d46c Move TargetData to DataLayout.
llvm-svn: 165403
2012-10-08 16:39:34 +00:00
Sean Silva a4fe992756 Silence Sphinx warnings.
Found the fix on this page:
http://permalink.gmane.org/gmane.comp.python.sphinx.devel/112

llvm-svn: 165380
2012-10-07 18:49:28 +00:00
Bill Wendling 954e430e9b Sphinxify the GettinStarted documentation.
llvm-svn: 165372
2012-10-07 07:10:13 +00:00
Bill Wendling c3b3463fcf Sphinxify the ExtendingLLVM documentation.
llvm-svn: 165371
2012-10-07 04:56:08 +00:00
Bill Wendling 668043f0db Sphinxify the compiler writer info documentation.
llvm-svn: 165369
2012-10-07 04:34:10 +00:00
Rafael Espindola ec2a51c154 Document MapVector.
llvm-svn: 165366
2012-10-07 00:56:09 +00:00
Dmitri Gribenko 8b76113f05 HowToSetUpLLVMStyleRTTI.rst: remove unneeded semicolons in code examples.
llvm-svn: 165335
2012-10-05 20:52:13 +00:00
Dmitri Gribenko 9dd4687fcc GoldPlugin.rst: minor typesetting fixes.
llvm-svn: 165334
2012-10-05 20:50:05 +00:00
Sean Silva 5ce54c2eb9 docs: Add HowToSetUpLLVMStyleRTTI.rst.
This document describes how to set up LLVM-style RTTI for a class
hierarchy. Surprisingly, this was not previously documented.

Also, link it into ProgrammersManual.html.

llvm-svn: 165293
2012-10-05 03:32:01 +00:00
Duncan Sands 271ea6cdc5 The alignment of an sret parameter is known: it must be at least the
alignment of the return type.  Teach the optimizers this.

llvm-svn: 165226
2012-10-04 13:36:31 +00:00
Sean Silva 03254cae95 docs: Fix typo on front page
llvm-svn: 165200
2012-10-04 04:41:27 +00:00
Sean Silva fc6de0f2cb docs: Sphinxify GoldPlugin document.
llvm-svn: 165198
2012-10-04 03:56:23 +00:00
Michael J. Spencer 99a241fa2c [Docs] Update File Headers section to cover doxygen style file level docs.
llvm-svn: 164964
2012-10-01 19:59:21 +00:00
Dmitri Gribenko 37f92c74d2 RST docs: convert HTML escapes to plain text in code examples.
llvm-svn: 164922
2012-09-30 20:51:02 +00:00
Dmitri Gribenko 0fd5ce068e Sphinx CSS: remove negative letter-spacing, it makes some fonts look really
bad.  Fonts already have appropriate tracking built-in.

llvm-svn: 164921
2012-09-30 20:43:24 +00:00
Jakub Staszak 2e747e3596 Fix &amp;&amp; to && in Coding Standards.
llvm-svn: 164920
2012-09-30 20:42:13 +00:00
Sean Silva 6f876c1028 docs: dedent list on index.rst
In reStructuredText, indented blocks denote block quotes [1]. This list
is not a block quote.

[1]. http://docutils.sourceforge.net/docs/ref/rst/restructuredtext.html#block-quotes

llvm-svn: 164847
2012-09-28 21:18:37 +00:00
Andrew Kaylor 5808c7d828 Removing dependency on third party library for Intel JIT event support.
Patch committed on behalf of Kirill Uhanov

llvm-svn: 164831
2012-09-28 17:35:20 +00:00
Micah Villmow daa1c74da8 Fix more crlf issues.
llvm-svn: 164805
2012-09-27 22:14:10 +00:00
Micah Villmow eb9c0d0ed5 Fix CRLF issues.
llvm-svn: 164782
2012-09-27 17:51:02 +00:00
Micah Villmow 7345a35777 Patch for HowToBuildOnARM documentation from Wei-Ren Chen.
llvm-svn: 164776
2012-09-27 15:05:49 +00:00
Sean Silva b0a1edce8c docs: Sphinxify HowToSubmitABug
llvm-svn: 164630
2012-09-25 20:52:04 +00:00
Sean Silva 747c639c27 docs: Fix long-standing typo in yaml2obj.rst.
llvm-svn: 164407
2012-09-21 19:48:16 +00:00
Dan Gohman 3397bb248f Say "bytes" instead of "address units", since that's what the
rest of LangRef uses.

llvm-svn: 164402
2012-09-21 18:41:30 +00:00
Dan Gohman e36188f30e Document the new !tbaa.struct metadata.
llvm-svn: 164398
2012-09-21 18:21:48 +00:00
David Blaikie f787f171a3 Add missing 'to' and rephrase an explanation of GCC's assumptions.
Wordsmithing by Matt Beaumont-Gay in response to r164389.

llvm-svn: 164395
2012-09-21 18:03:02 +00:00
David Blaikie 00bec9a4ad Document "do not use defaults in covered switch-over-enum" coding standard.
llvm-svn: 164389
2012-09-21 17:47:36 +00:00
Sean Silva 835ef201ac docs: Fix Sphinx warning over Atomics.rst.
Atomics.rst was not linked into the toctree.

Docs now build warning-free!

llvm-svn: 164356
2012-09-21 02:46:32 +00:00
Sean Silva 9f0311deee docs: Fix Sphinx warning over yaml2obj.rst.
yaml2obj.rst was not included in the toctree

Input from Michael Spencer.

llvm-svn: 164355
2012-09-21 02:46:30 +00:00
Andrew Trick e6af4b9a35 Fix function names in coding style examples
llvm-svn: 164311
2012-09-20 17:02:04 +00:00
Sean Silva 98f84c998f Fix Sphinx warnings.
Toctree was not being interlinked properly.

llvm-svn: 164282
2012-09-20 03:20:53 +00:00
Sean Silva 51fc86ddfe Sphinxify DebuggingJITedCode
LGTM by Michael Spencer

llvm-svn: 164280
2012-09-20 03:05:26 +00:00
Andrew Trick fc9420c006 Fix static function names in CodingStandards examples.
Try not to violate conventions immediately before explaining them.

llvm-svn: 164278
2012-09-20 02:01:06 +00:00
Sean Silva c99b54d095 Test commit
llvm-svn: 164174
2012-09-18 22:21:43 +00:00
Dmitri Gribenko be88f563bf Coding standards: fix typo: '= deleted' -> '= delete'.
llvm-svn: 164126
2012-09-18 14:00:58 +00:00
Craig Topper 1740e05c31 Add LLVM_DELETED_FUNCTION to coding standards.
llvm-svn: 164101
2012-09-18 04:43:40 +00:00
Galina Kistanova 8201936f60 Patch by Sean Silva!
The patch converts the "How to add a builder" document over to reStructuredText..

llvm-svn: 163860
2012-09-13 23:51:08 +00:00
Nadav Rotem 7c277da364 Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be
disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics).

llvm-svn: 163299
2012-09-06 09:17:37 +00:00
Michael J. Spencer 00b0d38094 [Docs] Fix Sphinx incremental build. Patch by Sean Silva!
llvm-svn: 163235
2012-09-05 19:44:47 +00:00
Chad Rosier d8c7610781 [ms-inline asm] Enumerate the InlineAsm dialects and rename the nsdialect to
inteldialect.

llvm-svn: 163231
2012-09-05 19:00:49 +00:00
Chad Rosier f42fad6251 [ms-inline asm] Emit the (new) inline asm Non-Standard Dialect attribute.
llvm-svn: 163181
2012-09-05 00:08:17 +00:00
Chad Rosier 38d24e6751 [ms-inline asm] Remove the Inline Asm Non-Standard Dialect attribute. This
implementation does not co-exist well with how the sideeffect and alignstack
attributes are handled.  The reverts r161641.

llvm-svn: 163174
2012-09-04 22:29:45 +00:00
Nadav Rotem 9bf4e5d3f6 remove old docs
llvm-svn: 162896
2012-08-30 09:23:13 +00:00
Bill Wendling 783e7c02c6 Patch by Sean Silva to un-barf his computer by explicitly removing the '\n'
character instead of always the last character.

llvm-svn: 162767
2012-08-28 17:18:27 +00:00
Bill Wendling 34bc34ecae Change the `linker_private_weak_def_auto' linkage to `linkonce_odr_auto_hide' to
make it more consistent with its intended semantics.

The `linker_private_weak_def_auto' linkage type was meant to automatically hide
globals which never had their addresses taken. It has nothing to do with the
`linker_private' linkage type, which outputs the symbols with a `l' (ell) prefix
among other things.

The intended semantic is more like the `linkonce_odr' linkage type.

Change the name of the linkage type to `linkonce_odr_auto_hide'. And therefore
changing the semantics so that it produces the correct output for the linker.

Note: The old linkage name `linker_private_weak_def_auto' will still parse but
is not a synonym for `linkonce_odr_auto_hide'. This should be removed in 4.0.
<rdar://problem/11754934>

llvm-svn: 162114
2012-08-17 18:33:14 +00:00
Rafael Espindola 740a6bc8a0 Remove references to compression in llvm-ar. It has been a long time since we
switched from a bytecode+bzip2 to the current bitcode.

llvm-svn: 161651
2012-08-10 01:57:52 +00:00
Chad Rosier 09f74b5517 [ms-inline asm] Add a new Inline Asm Non-Standard Dialect attribute.
This new attribute is intended to be used by the backend to determine how
the inline asm string should be parsed/printed. This patch adds the 
ia_nsdialect attribute and also adds a test case to ensure the IR is
correctly parsed, but there is no functional change at this time.

The standard dialect is assumed to be AT&T.  Therefore, this attribute
should only be added to MS-style inline assembly statements, which use
the Intel dialect.  If we ever support more dialects we'll need to
add additional state to the attribute.

llvm-svn: 161641
2012-08-10 00:00:22 +00:00
Bill Wendling 26f1f00999 Sphinxify the CommandLine document.
llvm-svn: 161479
2012-08-08 08:21:24 +00:00
Bill Wendling 7daef91de0 Move header so that it can be picked up by other .rst files.
llvm-svn: 161478
2012-08-08 06:42:30 +00:00
Michael J. Spencer 1ffd9de4f1 Add yaml2obj. A utility to convert YAML to binaries.
yaml2obj takes a textual description of an object file in YAML format
and outputs the binary equivalent. This greatly simplifies writing
tests that take binary object files as input.

llvm-svn: 161205
2012-08-02 19:16:56 +00:00
Bill Wendling ff9feeb520 Sphinxify the Code Generator document.
llvm-svn: 161164
2012-08-02 08:49:53 +00:00
Sylvestre Ledru ef7d8295b6 Fix some minor typos
llvm-svn: 161037
2012-07-31 07:05:57 +00:00
Nick Lewycky 7e9f6d7d58 Fix grammar-o. Fixes PR13482!
llvm-svn: 160996
2012-07-30 21:10:51 +00:00
Chad Rosier c25f88b703 The TimePassesIsEnabled has since moved to PassManager.cpp.
llvm-svn: 160881
2012-07-27 19:03:02 +00:00
Dan Gohman 0b3d782933 Add a floor intrinsic.
llvm-svn: 160791
2012-07-26 17:43:27 +00:00
Duncan Sands a2791b576f Take people straight to the contents of the file.
llvm-svn: 160777
2012-07-26 08:08:31 +00:00
Duncan Sands c769ccaff3 Add the list of code owners to the top level of the LLVM source tree to
hopefully make it more visible.  Adjust the web-docs to have a link to
this file rather than the list itself.  I described code owners as also
being gatekeepers for their part of the code, which I think is true but
isn't in the code owner explanation on the web page.

llvm-svn: 160776
2012-07-26 08:04:09 +00:00
Sylvestre Ledru 4fb32b10e5 Fix two typos in the doc
llvm-svn: 160762
2012-07-25 22:01:31 +00:00
Axel Naumann 7b44fbb95b Twine: fix link to source, add link to class doc and container section.
80 char lines.

llvm-svn: 160726
2012-07-25 13:46:11 +00:00
Sylvestre Ledru 35521e2310 Fix a typo (the the => the)
llvm-svn: 160621
2012-07-23 08:51:15 +00:00
Nuno Lopes acd8535de0 Apparently it's possible to do an 'invoke asm'.
Update the language reference to reflect that.

llvm-svn: 160408
2012-07-17 23:51:33 +00:00
Hans Wennborg e2679c50d7 ReleaseNotes.html: add note about specifying TLS models
llvm-svn: 160168
2012-07-13 12:44:23 +00:00
Duncan Sands 5a5928a5eb Post-dom frontier was removed in 3.0. Patch by chenwj.
llvm-svn: 160166
2012-07-13 10:11:28 +00:00
Chad Rosier 26b8e1d03f Fixup broken doc link. Patch by Sean Silva <silvas@purdue.edu>.
llvm-svn: 160082
2012-07-11 21:49:14 +00:00
Dmitri Gribenko d01af8772d Since SmallMap was removed in r158644, remove documentation in ProgrammersManual.html.
llvm-svn: 159874
2012-07-06 23:06:47 +00:00
Chad Rosier e3a87b1511 Update getFunction parameter documentation. Fixes PR13268.
llvm-svn: 159835
2012-07-06 17:15:03 +00:00
Bill Wendling fab09c66f3 Sphinxify the CMake document.
llvm-svn: 159806
2012-07-06 05:51:50 +00:00
Nuno Lopes 4d6c832165 add @llvm.donothing
llvm-svn: 159758
2012-07-05 17:37:07 +00:00
Peter Collingbourne 2165cf6e36 Document the llvm.fabs intrinsic.
llvm-svn: 159657
2012-07-03 12:25:40 +00:00
Chandler Carruth aafe0918bc Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h
This was always part of the VMCore library out of necessity -- it deals
entirely in the IR. The .cpp file in fact was already part of the VMCore
library. This is just a mechanical move.

I've tried to go through and re-apply the coding standard's preferred
header sort, but at 40-ish files, I may have gotten some wrong. Please
let me know if so.

I'll be committing the corresponding updates to Clang and Polly, and
Duncan has DragonEgg.

Thanks to Bill and Eric for giving the green light for this bit of cleanup.

llvm-svn: 159421
2012-06-29 12:38:19 +00:00
Bill Wendling 2908947b97 Sphinxify the Atomics documentation.
llvm-svn: 159416
2012-06-29 09:00:01 +00:00
Bill Wendling e28d50a889 Sphinxify the bitcode format document.
llvm-svn: 159340
2012-06-28 08:43:12 +00:00
Bill Wendling c66b152e07 Sphinxify the exception handling doc.
llvm-svn: 159254
2012-06-27 07:20:57 +00:00
Bill Wendling b4e01abdb4 Sphyinxify the Bugpoint document.
llvm-svn: 159199
2012-06-26 11:37:00 +00:00
Hans Wennborg cbe34b4cc9 Extend the IL for selecting TLS models (PR9788)
This allows the user/front-end to specify a model that is better
than what LLVM would choose by default. For example, a variable
might be declared as

  @x = thread_local(initialexec) global i32 42

if it will not be used in a shared library that is dlopen'ed.

If the specified model isn't supported by the target, or if LLVM can
make a better choice, a different model may be used.

llvm-svn: 159077
2012-06-23 11:37:03 +00:00
Michael J. Spencer d93399a15d [docs] Sphinxify GettingStartedVS. Patch by Mikael Lyngvig!
llvm-svn: 158947
2012-06-21 23:27:09 +00:00
Bill Wendling a10801fe6f Cleanup some encoding mishaps.
llvm-svn: 158904
2012-06-21 07:01:02 +00:00
Bill Wendling b5c7aa515e Sphinxify the tablegen document.
llvm-svn: 158903
2012-06-21 06:58:24 +00:00
Bill Wendling 5b26461e09 Sphinxify the outdated Packaging documentation.
llvm-svn: 158901
2012-06-21 06:09:37 +00:00
Meador Inge 6a706af708 Put space after "code-block::".
llvm-svn: 158880
2012-06-20 23:57:00 +00:00
Meador Inge 46137da795 Removed some left over HTML tags and a '}'.
llvm-svn: 158877
2012-06-20 23:48:01 +00:00
Bill Wendling 9dc93279a5 Sphixify the GEP FAQ.
llvm-svn: 158858
2012-06-20 21:54:22 +00:00
Bill Wendling 814ad4a169 Sphinxify the SegmentedStack document.
llvm-svn: 158819
2012-06-20 12:05:05 +00:00
Bill Wendling 1eec272587 Move coding standards reference from development_process.rst to programming.rst.
llvm-svn: 158818
2012-06-20 11:56:24 +00:00
Bill Wendling 39174deb12 Unindent list.
llvm-svn: 158817
2012-06-20 11:55:22 +00:00
Bill Wendling 3a9192c19a Un-indent list to remove ugly back-slash.
llvm-svn: 158816
2012-06-20 11:53:08 +00:00
Bill Wendling 4a8948d583 Fix the formatting a bit.
llvm-svn: 158815
2012-06-20 11:25:11 +00:00
Bill Wendling f42595a75f Sphinxify the developer policy document.
llvm-svn: 158814
2012-06-20 11:20:07 +00:00
Bill Wendling 29f569c3c6 Sphinxify the lexicon doc.
llvm-svn: 158813
2012-06-20 10:36:41 +00:00
Bill Wendling 8a6215c3b6 Sphinxify BranchWeightMetadata document.
llvm-svn: 158810
2012-06-20 10:17:46 +00:00
Bill Wendling 8cb8e9987b Sphinxify the LTO document.
llvm-svn: 158808
2012-06-20 10:08:02 +00:00
Bill Wendling dca6fccd1f Unindent list.
llvm-svn: 158806
2012-06-20 09:50:45 +00:00
Bill Wendling e78ab21781 Sphinxify the AliasAnalysis document.
llvm-svn: 158805
2012-06-20 09:49:57 +00:00
Bill Wendling b2f7b95b9d Unindent list.
llvm-svn: 158804
2012-06-20 09:49:06 +00:00
Bill Wendling 7aa439ece8 Un-indent the list and remove ugly back-slash.
llvm-svn: 158803
2012-06-20 09:48:38 +00:00
Bill Wendling 74ede098b3 Sphinxify the MakefileGuide document.
llvm-svn: 158789
2012-06-20 04:20:39 +00:00
Bill Wendling 1c5e94a47c Sphinxify the CodingStandard documentation.
llvm-svn: 158786
2012-06-20 02:57:56 +00:00
Bill Wendling 444075a281 Add Projects.rst to the toctree.
llvm-svn: 158753
2012-06-19 22:25:41 +00:00
Bill Wendling 34ffc89e93 Use correct capitalization.
llvm-svn: 158752
2012-06-19 22:25:17 +00:00
Bill Wendling 7f0d23e427 Indent coding examples.
llvm-svn: 158728
2012-06-19 17:48:06 +00:00
Bill Wendling fb370510e7 Remove bad HTML tags. Add missing :.
llvm-svn: 158726
2012-06-19 17:43:57 +00:00
Bill Wendling 6bf4417261 Put flag names on one line.
llvm-svn: 158715
2012-06-19 09:29:05 +00:00
Bill Wendling f0d91f3beb Fix italicized text.
llvm-svn: 158714
2012-06-19 09:27:54 +00:00
Bill Wendling b746402512 Use correct URL.
llvm-svn: 158713
2012-06-19 09:26:15 +00:00
Bill Wendling 5901a4e5f3 Fix numbering of list items.
llvm-svn: 158712
2012-06-19 09:25:04 +00:00
Bill Wendling f06ac97fd7 Fix some Sphinx mistakes.
llvm-svn: 158711
2012-06-19 09:23:23 +00:00
Bill Wendling a84e2df4f9 First attempt at Sphinx. Convert the Projects.html file to Sphinx format.
llvm-svn: 158709
2012-06-19 09:18:34 +00:00
Nuno Lopes f9abcb7ba9 revert r158660, since Chris has some issues with this patch (namely using code to reprent information only used by the compiler)
Original commit msg:
add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.
This metadata can be attached to any instruction returning a pointer

llvm-svn: 158688
2012-06-18 23:34:26 +00:00
Michael J. Spencer 626a4ecf3a [docs] Port FAQ over to Sphinx.
Patch by Mikael Lyngvig!

llvm-svn: 158677
2012-06-18 20:21:38 +00:00
Nuno Lopes b7c941bad9 add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers.
This metadata can be attached to any instruction returning a pointer

llvm-svn: 158660
2012-06-18 16:04:04 +00:00
Michael J. Spencer a9acafa64e [docs] Make it pretty.
llvm-svn: 158561
2012-06-15 22:17:44 +00:00
David Blaikie c198a68a14 Remove/modify C backend references from LLVM documentation.
Patch by Wei-Ren Chen.

llvm-svn: 158456
2012-06-14 16:52:55 +00:00
David Blaikie b64f23e674 Remove C backend reference from the FAQ.
llvm-svn: 158455
2012-06-14 16:43:11 +00:00
Duncan Sands be3d3a66ee Clarify a bit that the types have to be the same. Came up on IRC.
llvm-svn: 158453
2012-06-14 14:58:28 +00:00
Dmitri Gribenko a99fa5b062 Use correct syntax highliter in code blocks. Noticed by Sean Silva.
llvm-svn: 158359
2012-06-12 15:45:07 +00:00
Dmitri Gribenko 19408a76a6 FileCheck docs: remove leftover HTML markup.
llvm-svn: 158344
2012-06-12 00:48:47 +00:00
Michael J. Spencer 838e5add7e [llvm-nm] Update documentation to cover object file support and arguments.
llvm-svn: 158120
2012-06-06 23:34:10 +00:00
Duncan Sands 1f5d109918 Add a new broken compiler.
llvm-svn: 158053
2012-06-06 07:39:39 +00:00
Benjamin Kramer 21b8ad0560 Add 3.0 and 3.1 tags to the getting started guide.
llvm-svn: 158020
2012-06-05 20:35:50 +00:00
Lang Hames a59100cc08 Add a new intrinsic: llvm.fmuladd. This intrinsic represents a multiply-add
expression (a * b + c) that can be implemented as a fused multiply-add (fma)
if the target determines that this will be more efficient. This intrinsic
will be used to implement FP_CONTRACT support and an aggressive FMA formation
mode.

If your target has a fast FMA instruction you should override the
isFMAFasterThanMulAndAdd method in TargetLowering to return true.

llvm-svn: 158014
2012-06-05 19:07:46 +00:00
Benjamin Kramer bde9176663 Fix typos found by http://github.com/lyda/misspell-check
llvm-svn: 157885
2012-06-02 10:20:22 +00:00
Jakob Stoklund Olesen 83b0ac498a Remove the old register list functions from MCRegisterInfo.
These functions exposed the layout of the underlying data tables as
null-terminated uint16_t arrays.

Use the new MCSubRegIterator, MCSuperRegIterator, and MCRegAliasIterator
classes instead.

llvm-svn: 157855
2012-06-01 23:28:34 +00:00
Rafael Espindola e3c5f3e5b1 Fix typos noticed by Benjamin Kramer.
Also make the checks stronger and test that we reject ranges that overlap
a previous wrapped range.

llvm-svn: 157749
2012-05-31 16:04:26 +00:00
Rafael Espindola 97d7787788 Require intervals in the range metadata to be in a canonical form: They must
be non contiguous, non overlapping and sorted by the lower end.

While this is technically a backward incompatibility, every frontent currently
produces range metadata with a single interval and we don't have any pass
that merges intervals yet, so no existing bitcode files should be rejected by
this.

llvm-svn: 157741
2012-05-31 13:45:46 +00:00
Chris Lattner 747482c579 typo fix
llvm-svn: 157661
2012-05-30 00:40:23 +00:00
Chris Lattner ff9e08baf9 rdar://11542750 - llvm.trap should be marked no return.
llvm-svn: 157551
2012-05-27 23:20:41 +00:00
Jakob Stoklund Olesen 36a5c8e550 Add support for range expressions in TableGen foreach loops.
Like this:

  foreach i = 0-127 in ...

Use braces for composite ranges:

  foreach i = {0-3,9-7} in ...

llvm-svn: 157432
2012-05-24 22:17:39 +00:00
Chad Rosier fd7469c947 Typo. Patch by Nicklas Bo Jensen <nbjensen@gmail.com>.
llvm-svn: 157415
2012-05-24 21:17:47 +00:00
Tobias Grosser 6b31d170a4 Add half support to LLVM (for OpenCL)
Submitted by: Anton Lokhmotov  <Anton.Lokhmotov@arm.com>

Approved by: o Anton Korobeynikov
             o Micah Villmow
             o David Neto

llvm-svn: 157393
2012-05-24 15:59:06 +00:00
Bill Wendling 6081fa19c5 Remove old release notes. Ready them for additions from current development
cycle.

llvm-svn: 157378
2012-05-24 06:38:09 +00:00
Joel Jones 2edc84ee60 Reflect that tblgen is now llvm-tblgen
llvm-svn: 157371
2012-05-24 04:38:50 +00:00
Nuno Lopes ad40c0a425 revert my previous patches that introduced an additional parameter to the objectsize intrinsic.
After a lot of discussion, we realized it's not the best option for run-time bounds checking

llvm-svn: 157255
2012-05-22 15:25:31 +00:00
Nick Lewycky 853a8a982b Add RPO to the lexicon.
llvm-svn: 157166
2012-05-20 20:30:47 +00:00
John Criswell 4e711921ba Fixed grammar for the llvm.trap intrinsic description.
llvm-svn: 156881
2012-05-16 00:26:51 +00:00
Daniel Dunbar f8deeb241a [docs] Remove unsupported references to ExtraSource variable.
llvm-svn: 156857
2012-05-15 21:32:27 +00:00
Bill Wendling a548587d48 Add blurb for Crack.
llvm-svn: 156852
2012-05-15 20:47:23 +00:00
Akira Hatanaka 7006265874 Update MIPS' section in the release notes. Patch by Simon Atanasyan.
llvm-svn: 156847
2012-05-15 20:06:41 +00:00
Daniel Dunbar c364d68bf2 llvm-build: Add support for non-installed libraries (e.g., gtest).
- These libraries are only reported by llvm-config when run from a development
   tree.

llvm-svn: 156838
2012-05-15 18:44:17 +00:00
David Chisnall bd4b9f7277 Add some release notes about compiler-rt and libc++
llvm-svn: 156819
2012-05-15 13:06:46 +00:00
Dan Gohman 164fe18cfe Rename @llvm.debugger to @llvm.debugtrap.
llvm-svn: 156774
2012-05-14 18:58:10 +00:00
Akira Hatanaka 67c09afab1 Release notes for MIPS backend.
llvm-svn: 156772
2012-05-14 18:40:07 +00:00
Bill Wendling c3fd480203 Formatting changes. Remove the '...' placeholders.
llvm-svn: 156756
2012-05-14 08:11:53 +00:00
Bill Wendling e8f2cdf891 Add blurb about Julia.
llvm-svn: 156754
2012-05-14 06:23:51 +00:00
Justin Holewinski e65f29ff62 ReleaseNotes: Add info on PTX back-end
llvm-svn: 156745
2012-05-13 17:32:35 +00:00
Jean-Daniel Dupas 81b82a0ebf Fix Xcode case (Upper X, lower c)
llvm-svn: 156743
2012-05-13 14:36:15 +00:00
Benjamin Kramer 959f8afaa0 ReleaseNotes: Add a note about zero_undef on llvm.cttz/ctlz. Extend x86 section. Add a bullet for dwarf access tables.
llvm-svn: 156740
2012-05-13 13:10:35 +00:00
Benjamin Kramer cd1436ddc0 ReleaseNotes: Add a blurb about llvm-mc -g and move inliner changes into the optimizer sections. Verbosify some bullets.
llvm-svn: 156739
2012-05-13 12:01:16 +00:00
Benjamin Kramer 34b714fc8d ReleaseNotes: Document that LLVM was rewritten in python.
^~~~
                            llvm-build

llvm-svn: 156738
2012-05-13 11:46:05 +00:00
Benjamin Kramer 121e760b2a ReleaseNotes: Add bullets for removed targets. Extend the note about llvm-ld removal.
llvm-svn: 156737
2012-05-13 11:28:46 +00:00
Benjamin Kramer a10adf5fdb Outline some clang 3.1 highlights off the top of my head.
llvm-svn: 156736
2012-05-13 10:40:08 +00:00
Benjamin Kramer d3684057c6 Add a link for every project.
llvm-svn: 156735
2012-05-13 10:21:51 +00:00
Bill Wendling 374e9e825f Add blurb for LLVM D Compiler.
llvm-svn: 156733
2012-05-13 10:00:58 +00:00
Bill Wendling 60639ea6ff Add blurbs for pocl and TCE.
llvm-svn: 156732
2012-05-13 09:59:27 +00:00
Bill Wendling 4fefcdb179 Add OSL blurb.
llvm-svn: 156731
2012-05-13 09:55:24 +00:00
Bill Wendling 3f853ad8f8 Add FAUST blurb.
llvm-svn: 156730
2012-05-13 09:52:48 +00:00
Nadav Rotem e963870f77 Fix the tool documentation
llvm-svn: 156729
2012-05-13 05:52:56 +00:00
Gregory Szorc 43cb4edd84 Document Python bindings in release notes
llvm-svn: 156724
2012-05-12 21:12:22 +00:00
Bill Wendling 7d878db4e1 Make the URL a link instead.
llvm-svn: 156655
2012-05-11 22:38:33 +00:00
Bill Wendling 9cc768581a Add mention of Glasgow Haskell Compiler.
llvm-svn: 156648
2012-05-11 21:42:37 +00:00
Duncan Sands 1367e49f6b Some release notes for dragonegg.
llvm-svn: 156635
2012-05-11 19:59:43 +00:00
Dan Gohman dfab443ae8 Define a new intrinsic, @llvm.debugger. It will be similar to __builtin_trap(),
but it generates int3 on x86 instead of ud2.

llvm-svn: 156593
2012-05-11 00:19:32 +00:00
Nuno Lopes 01547b3ad2 change the objectsize intrinsic signature: add a 3rd parameter to denote the maximum runtime performance penalty that the user is willing to accept.
This commit only adds the parameter. Code taking advantage of it will follow.

llvm-svn: 156473
2012-05-09 15:52:43 +00:00
Seth Cantrell 40306e7e30 add to 3.1 release notes
llvm-svn: 156443
2012-05-08 23:34:38 +00:00
Daniel Dunbar d18888242e Revert r156393, "[tests] Remove some remaining DejaGNU related cruft.", this
patch wasn't ready yet.

llvm-svn: 156395
2012-05-08 18:26:07 +00:00
Daniel Dunbar 898f02a613 [tests] Remove some remaining DejaGNU related cruft.
llvm-svn: 156393
2012-05-08 18:11:49 +00:00
Daniel Dunbar 3d92154e60 [docs] Remove POD based man page docs (and build system support).
- Currently this leaves us with less build system support (e.g., installing man pages) for the docs than is desired. I'm working on fixing this, but it may take a while. If someone finds this particularly egregious let me know and I will prioritize it.

llvm-svn: 156389
2012-05-08 17:48:21 +00:00
Daniel Dunbar 9e5585dd82 [docs] Add support for building man pages using Sphinx.
llvm-svn: 156386
2012-05-08 16:50:47 +00:00
Daniel Dunbar 2e395e17c3 [docs] Integrate the command guide into the toctree.
llvm-svn: 156385
2012-05-08 16:50:43 +00:00
Daniel Dunbar 8f4a8a636c [docs] Add ReST version of all the man pages.
- The POD versions are slated for execution, but are still around until
   llvm.org machinery is in place.

llvm-svn: 156384
2012-05-08 16:50:35 +00:00
Pete Cooper 54d5f6489f Remove C Backend from the bugpoint docs
llvm-svn: 156333
2012-05-07 22:42:40 +00:00
Duncan Sands 859212767e Use correct variable in this example. Pointed out by waynix on IRC.
llvm-svn: 156067
2012-05-03 15:25:19 +00:00
Daniel Dunbar 340fdf2991 [docs] Include the Kaleidescope tutorial in the Sphinx docs build.
llvm-svn: 156032
2012-05-02 22:46:36 +00:00
Eli Bendersky 48221c5c54 Removed examples of stack frame inspection which no longer work for old JIT.
Added an example of MCJIT-based debugging.

llvm-svn: 155895
2012-05-01 06:15:40 +00:00
Jim Grosbach 691f4dd923 Remove a docs reference to the CBackend.
llvm-svn: 155716
2012-04-27 16:29:22 +00:00
Joerg Sonnenberger 18ad5b28b7 Add note about returns_twice magic removal from LLVM itself.
llvm-svn: 155657
2012-04-26 20:10:07 +00:00
Michael J. Spencer e734f5417f [CMake] Restructure how Clang, Polly and other external projects get included.
While making lld build under the tools directory I decided to refactor how this
works.

There is now a macro, add_llvm_external_project, which takes the name of the
expected subdirectory. This sets up two CMake options.

 * LLVM_EXTERNAL_${NAME}_SOURCE_DIR
     This is the path to the source. It defaults to
     ${CMAKE_CURRENT_SOURCE_DIR}/${name}.
 * LLVM_EXTERNAL_${NAME}_BUILD
     Enable and disable building the tool as part of LLVM.

I chose LLVM_EXTERNAL_${NAME} as a prefix so they all show up together in the
GUI.

llvm-svn: 155654
2012-04-26 19:43:35 +00:00
Benjamin Kramer 31f2704a3d Reapply the SmallMap patch with a fix.
Comparing ~0UL with an unsigned will always return false when long is 64 bits long.

llvm-svn: 155568
2012-04-25 18:01:58 +00:00
Eric Christopher 4ff88c67e0 Revert "First implementation of:"
This reverts commit 76271a3366731d4c372fdebcd8d3437e6e09a61b.

as it's breaking the bots.

llvm-svn: 155562
2012-04-25 17:51:00 +00:00
Stepan Dyatkovskiy 7ce39cdb9f First implementation of:
- FlatArrayMap. Very simple map container that uses flat array inside.
- MultiImplMap. Map container interface, that has two modes, one for small amount of elements and one for big amount.
- SmallMap. SmallMap is DenseMap compatible MultiImplMap. It uses FlatArrayMap for small mode, and DenseMap for big mode. 

Also added unittests for new classes and update for ProgrammersManual.
For more details about new classes see ProgrammersManual and comments in sourcecode.

llvm-svn: 155557
2012-04-25 17:09:38 +00:00
Michael J. Spencer 4943695da9 [docs] Update version number. I suggest that at some point we make the
build system generate this file with the proper version.

llvm-svn: 155221
2012-04-20 19:28:40 +00:00
Joel Jones cca0f80ff3 Fix broken internal link.
llvm-svn: 155213
2012-04-20 18:20:24 +00:00
Joel Jones c8be222fbf Add debugging hints for when bugpoint does not suffice, specifically for instcombine and TargetLowering
llvm-svn: 155209
2012-04-20 18:11:07 +00:00
Daniel Dunbar cd0d4b69d8 [docs] Update Makefile for images removal.
- Also, drop the lines.gif background from doxygen, this URL was wrong on the
   llvm.org server anyway.

llvm-svn: 155208
2012-04-20 17:27:12 +00:00
Benjamin Kramer 23e4db271c LLVM docs no longer contain images, don't try to install them.
llvm-svn: 155206
2012-04-20 17:14:26 +00:00
Joel Jones 58c5ac4793 Correct spelling, q.v. http://en.wikipedia.org/wiki/Bourne_shell
llvm-svn: 155202
2012-04-20 16:08:56 +00:00
Daniel Dunbar 9e599bb6ac [docs] Remove spurious or unused images.
llvm-svn: 155199
2012-04-20 15:06:20 +00:00
Daniel Dunbar 46d611a227 [docs] Update HTML pages to refer to CSS in a way that works locally and with Sphinx.
llvm-svn: 155153
2012-04-19 20:20:34 +00:00
Daniel Dunbar f1cfef17e3 [docs] Remove index.html, I am flipping the switch on llvm.org.
llvm-svn: 155151
2012-04-19 20:06:39 +00:00
Michael J. Spencer 9125493efe Remove llvm-ld and llvm-stub (which is only used by llvm-ld).
llvm-ld is no longer useful and causes confusion and so it is being removed.

* Does not work very well on Windows because it must call a gcc like driver to
  assemble and link.
* Has lots of hard coded paths which are wrong on many systems.
* Does not understand most of ld's options.
* Can be partially replaced by llvm-link | opt | {llc | as, llc -filetype=obj} |
  ld, or fully replaced by Clang.

I know of no production use of llvm-ld, and hacking use should be
replaced by Clang's driver.

llvm-svn: 155147
2012-04-19 19:27:54 +00:00
Daniel Dunbar 6dafd09680 [docs] Add back old index.html until I get llvm.org work done to support Sphinx docs.
llvm-svn: 155134
2012-04-19 16:37:30 +00:00
Daniel Dunbar fbb8041194 [docs] Convert docs index page into Sphinx.
- Work in progress, this is mostly important because it lets us incrementally migrate the remaining documentation.
 - Lots of styling, editing, and integration work yet to come…
 - PR12589

llvm-svn: 155133
2012-04-19 16:31:37 +00:00
Daniel Dunbar 09b8c0f115 [docs] Stub out structure for Sphinx-based docs.
- Work in progress, this is just the basic structure.

llvm-svn: 155132
2012-04-19 16:31:19 +00:00
Jim Grosbach dd9257428d Document that StringMap iteration order is non-deterministic.
llvm-svn: 155040
2012-04-18 20:28:55 +00:00
Eli Bendersky cc091aac5c A bit of cleanup in the TestingGuide doc - dg.exp files no longer exist
llvm-svn: 154992
2012-04-18 08:02:25 +00:00
Eli Bendersky d47b789d0b Some formatting and grammar fixes in the FileCheck documentation
llvm-svn: 154990
2012-04-18 07:44:03 +00:00
Chandler Carruth be4ef0818d Add a stub about the inline cost rewrite.
llvm-svn: 154892
2012-04-17 01:13:53 +00:00
Chandler Carruth 6a47837ef7 Add a stub for block placement pass. This needs fleshing out w/ details
about what folks should expect w.r.t. the new algorithm.

llvm-svn: 154891
2012-04-17 01:10:35 +00:00
Duncan Sands 93e8263d21 Forgot to remove fast math metadata from the release notes.
llvm-svn: 154858
2012-04-16 20:51:39 +00:00
Duncan Sands 9af6298293 Remove support for the special 'fast' value for fpmath accuracy for the moment.
llvm-svn: 154850
2012-04-16 19:39:33 +00:00
Tobias Grosser dfc9ab2c16 Describe Polly as a 'Polyhedral Optimizer'
llvm-svn: 154834
2012-04-16 17:18:49 +00:00
Tobias Grosser 99d8e96d8e Add Polly news to the release notes
llvm-svn: 154833
2012-04-16 17:17:00 +00:00
Hal Finkel 82f8b2180d Link to the autovectorization EuroLLVM slides in the release notes.
llvm-svn: 154830
2012-04-16 17:06:49 +00:00
Duncan Sands 05f4df8d72 Make it possible to indicate relaxed floating point requirements at the IR level
through the use of 'fpmath' metadata.  Currently this only provides a 'fpaccuracy'
value, which may be a number in ULPs or the keyword 'fast', however the intent is
that this will be extended with additional information about NaN's, infinities
etc later.  No optimizations have been hooked up to this so far.

llvm-svn: 154822
2012-04-16 16:28:59 +00:00
Eli Bendersky f08a5a45fb Documentation fixes to LLVMBuild.html [PR 11563]
llvm-svn: 154804
2012-04-16 08:42:55 +00:00
Bill Wendling d1f43f1ceb Add credit and release notes for r150307. By Kai Nacke.
llvm-svn: 154796
2012-04-16 05:24:52 +00:00
Hal Finkel 1ac08679fd Say something about -vectorize in the release notes.
llvm-svn: 154788
2012-04-16 03:49:43 +00:00
Jakub Staszak 9414f0f266 Fix class name.
llvm-svn: 154773
2012-04-15 20:22:36 +00:00
Jakub Staszak 89f1d0a5a4 Fix filename and register numbers.
llvm-svn: 154771
2012-04-15 20:13:47 +00:00
Duncan Sands 62d5f6f247 Add the MDBuilder helper class for conveniently creating metadata.
llvm-svn: 154766
2012-04-15 18:03:49 +00:00
Anshuman Dasgupta d07ba6208f Remove trailing whitespace.
llvm-svn: 154755
2012-04-14 20:59:13 +00:00
Anshuman Dasgupta 888bcf9c63 Add VLIW packetizer to ReleaseNotes.html and CREDITS.TXT. Committing patch
by Sundeep Kushwaha.

llvm-svn: 154754
2012-04-14 20:57:13 +00:00
Brendon Cahoon 5aa9db38ac Add the loop unrolling info to ReleaseNotes.html and CREDITS.TXT.
llvm-svn: 154752
2012-04-14 16:54:12 +00:00
Duncan Sands 34bd91a49f Rename "fpaccuracy" metadata to the more generic "fpmath". That's because I'm
thinking of generalizing it to be able to specify other freedoms beyond accuracy
(such as that NaN's don't have to be respected).  I'd like the 3.1 release (the
first one with this metadata) to have the more generic name already rather than
having to auto-upgrade it in 3.2.

llvm-svn: 154744
2012-04-14 12:36:06 +00:00
Tony Linthicum 7f13de2d6f Support for Hexagon backend.
llvm-svn: 154692
2012-04-13 19:09:44 +00:00
Anshuman Dasgupta 47628b2580 Add DFA generator for VLIW targets to ReleaseNotes.html and CREDITS.TXT.
llvm-svn: 154590
2012-04-12 15:17:35 +00:00
Duncan Sands af06b26c8e Express the number of ULPs in fpaccuracy metadata as a real rather than a
rational number, eg as 2.5 rather than 5, 2.  OK'd by Peter Collingbourne.

llvm-svn: 154387
2012-04-10 08:22:43 +00:00
Duncan Sands f1e1bb213f Clarify that fpaccuracy metadata is giving the compiler permission to use a
less accurate method.

llvm-svn: 154319
2012-04-09 14:08:00 +00:00
Bill Wendling ccf1109040 Formatting changes. Don't put spaces in front of some code, which only makes it look 'off'.
llvm-svn: 154282
2012-04-08 11:52:52 +00:00
NAKAMURA Takumi b95f64134e Target/X86/MCTargetDesc/X86MCAsmInfo.cpp: Enable DwarfCFI (aka DW2) on Cygming.
Cygwin-1.7 supports dw2. Some recent mingw distros support one, too.
I have confirmed test-suite/SingleSource/Benchmarks/Shootout-C++/except.cpp can pass on Cygwin.

llvm-svn: 154247
2012-04-07 02:24:20 +00:00
Eric Christopher 34164196af Add a line number for the scope of the function (starting at the first
brace) so that we get more accurate line number information about the
declaration of a given function and the line where the function
first starts.

Part of rdar://11026482

llvm-svn: 153916
2012-04-03 00:43:49 +00:00
Benjamin Kramer cca02750c8 Drop O4 from the llc manpage, it was removed in r70445.
llvm-svn: 153684
2012-03-29 20:40:18 +00:00
NAKAMURA Takumi c9d9b92dc1 llvm/docs/*.html: Fix markups.
llvm-svn: 153508
2012-03-27 11:25:16 +00:00
Daniel Dunbar 9a05c8b479 docs/lit: Add some notes on the lit test run output format.
llvm-svn: 153450
2012-03-26 18:01:14 +00:00
Eric Christopher 885ed8240e Update documentation for old api changes.
Fixes PR12050

llvm-svn: 153424
2012-03-26 01:56:34 +00:00
Rafael Espindola 1ff70a7cf2 s/restrict/describe/
Thanks Duncan.

llvm-svn: 153411
2012-03-25 11:14:35 +00:00
Eli Bendersky f33086052d Continue cleanup of LIT, getting rid of the remaining artifacts from dejagnu
* Removed test/lib/llvm.exp - it is no longer needed 
* Deleted the dg.exp reading code from test/lit.cfg. There are no dg.exp files
  left in the test suite so this code is no longer required. test/lit.cfg is
  now much shorter and clearer 
* Removed a lot of duplicate code in lit.local.cfg files that need access to
  the root configuration, by adding a "root" attribute to the TestingConfig
  object. This attribute is dynamically computed to provide the same
  information as was previously provided by the custom getRoot functions. 
* Documented the config.root attribute in docs/CommandGuide/lit.pod

llvm-svn: 153408
2012-03-25 09:02:19 +00:00