Commit Graph

5511 Commits

Author SHA1 Message Date
NAKAMURA Takumi
cdde33ebaa Revert r211287, "Remove support for LLVM runtime multi-threading."
libclang still requires it on cygming, lack of incomplete <mutex>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211592 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-24 13:36:31 +00:00
Oliver Stannard
e5241cc488 Emit the ARM build attributes ABI_PCS_wchar_t and ABI_enum_size.
Emit the ARM build attributes ABI_PCS_wchar_t and ABI_enum_size based on
module flags metadata.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211349 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-20 10:08:11 +00:00
Zachary Turner
a4d0ff9cd1 Remove support for LLVM runtime multi-threading.
After a number of previous small iterations, the functions
llvm_start_multithreaded() and llvm_stop_multithreaded() have
been reduced essentially to no-ops.  This change removes them
entirely.

Reviewed by: rnk, dblaikie

Differential Revision: http://reviews.llvm.org/D4216

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211287 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-19 18:18:23 +00:00
Jingyue Wu
e4d0a5ec18 [ValueTracking] Extend range metadata to call/invoke
Summary:
With this patch, range metadata can be added to call/invoke including
IntrinsicInst. Previously, it could only be added to load.

Rename computeKnownBitsLoad to computeKnownBitsFromRangeMetadata because
range metadata is not only used by load.

Update the language reference to reflect this change.

Test Plan:
Add several tests in range-2.ll to confirm the verifier is happy with
having range metadata on call/invoke.

Add two tests in AddOverFlow.ll to confirm annotating range metadata to
call/invoke can benefit InstCombine.

Reviewers: meheff, nlewycky, reames, hfinkel, eliben

Reviewed By: eliben

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4187

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211281 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-19 16:50:16 +00:00
Zachary Turner
761f33167f Kill the LLVM global lock.
This patch removes the LLVM global lock, and updates all existing
users of the global lock to use their own mutex.    None of the
existing users of the global lock were protecting code that was
mutually exclusive with any of the other users of the global
lock, so its purpose was not being met.

Reviewed by: rnk

Differential Revision: http://reviews.llvm.org/D4142

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211277 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-19 16:17:42 +00:00
Zachary Turner
5ea46694d0 Revert r211066, 211067, 211068, 211069, 211070.
These were committed accidentally from the wrong branch before having
a review sign-off.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211072 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-16 22:49:41 +00:00
Zachary Turner
4641b6b427 Programmer's Manual changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211070 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-16 22:40:48 +00:00
Tim Northover
6eaf840a3d Docs: remove extra {} around result types.
It makes the types look like they're single-element structures. And
when we have instructions that *do* result in a struct, that can get
confusing rather quickly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210905 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-13 14:24:23 +00:00
Tim Northover
ab47c159b0 Docs: fix grammar error in description
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210904 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-13 14:24:16 +00:00
Tim Northover
8f2a85e099 IR: add "cmpxchg weak" variant to support permitted failure.
This commit adds a weak variant of the cmpxchg operation, as described
in C++11. A cmpxchg instruction with this modifier is permitted to
fail to store, even if the comparison indicated it should.

As a result, cmpxchg instructions must return a flag indicating
success in addition to their original iN value loaded. Thus, for
uniformity *all* cmpxchg instructions now return "{ iN, i1 }". The
second flag is 1 when the store succeeded.

At the DAG level, a new ATOMIC_CMP_SWAP_WITH_SUCCESS node has been
added as the natural representation for the new cmpxchg instructions.
It is a strong cmpxchg.

By default this gets Expanded to the existing ATOMIC_CMP_SWAP during
Legalization, so existing backends should see no change in behaviour.
If they wish to deal with the enhanced node instead, they can call
setOperationAction on it. Beware: as a node with 2 results, it cannot
be selected from TableGen.

Currently, no use is made of the extra information provided in this
patch. Test updates are almost entirely adapting the input IR to the
new scheme.

Summary for out of tree users:
------------------------------

+ Legacy Bitcode files are upgraded during read.
+ Legacy assembly IR files will be invalid.
+ Front-ends must adapt to different type for "cmpxchg".
+ Backends should be unaffected by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210903 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-13 14:24:07 +00:00
Bob Wilson
4cea00282f LangRef: clarify that global declarations can have section and alignment info.
I'm not sure what it means to set a section for a declaration in another
translation unit, but there are some tests in the tree that do it so it seems
to be legal now regardless.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210819 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-12 20:40:33 +00:00
Bob Wilson
7c3436d941 Add missing "InitializerConstant" to global variable syntax in LangRef.
The syntax for Global Variables in LangRef is missing the initializer.
This syntax section was added in r199218 along with changes to the
dllexport/dllimport handling, and I guess it was just an oversight to omit the
initializer values. I’ve marked the initializer as optional because this syntax
is used for both declarations and definitions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210808 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-12 18:42:55 +00:00
Alp Toker
8aeca44558 Reduce verbiage of lit.local.cfg files
We can just split targets_to_build in one place and make it immutable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210496 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-09 22:42:55 +00:00
Rafael Espindola
ed7d283ce5 Update langref for unnamed_addr being allowed in aliases.
Thanks to Duncan P. N. Exon Smith and Owen Anderson for noticing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210490 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-09 21:21:33 +00:00
Saleem Abdulrasool
c90ddb1869 ARM: add VLA extension for WoA Itanium ABI
The armv7-windows-itanium environment is nearly identical to the MSVC ABI. It
has a few divergences, mostly revolving around the use of the Itanium ABI for
C++. VLA support is one of the extensions that are amongst the set of the
extensions.

This adds support for proper VLA emission for this environment. This is
somewhat similar to the handling for __chkstk emission on X86 and the large
stack frame emission for ARM. The invocation style for chkstk is still
controlled via the -mcmodel flag to clang.

Make an explicit note that this is an extension.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210489 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-09 20:18:42 +00:00
Jeroen Ketema
503447efba [docs] Fix typo, align comments, fix syntax highlighting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210462 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-09 10:12:29 +00:00
Rafael Espindola
013321a0f9 Fix a few issues with comdat handling on COFF.
* Section association cannot use just the section name as many
sections can have the same name. With this patch, the comdat symbol in
an assoc section is interpreted to mean a symbol in the associated
section and the mapping is discovered from it.

* Comdat symbols were not being set correctly. Instead we were getting
whatever was output first for that section.

A consequence is that associative sections now must use .section to
set the association. Using .linkonce would not work since it is not
possible to change a sections comdat symbol (it is used to decide if
we should create a new section or reuse an existing one).

This includes r210298, which was reverted because it was asserting
on an associated section having the same comdat as the associated
section.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210367 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-06 19:26:12 +00:00
Dan Liew
8cfe2c00b0 Fix a typo made in Programmer's Manual made in r210354. Spotted
by Paul Robinson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210363 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-06 18:44:21 +00:00
Dan Liew
64d39d3281 Mention the IRBuilder in Programmer's Manual with a few small examples.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210354 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-06 17:25:47 +00:00
Pekka Jaaskelainen
53b344dcca Slight language tweak from Jonathan Humphreys.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210327 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-06 11:21:44 +00:00
Rafael Espindola
6fd1b8ee48 Allow aliases to be unnamed_addr.
Alias with unnamed_addr were in a strange state. It is stored in GlobalValue,
the language reference talks about "unnamed_addr aliases" but the verifier
was rejecting them.

It seems natural to allow unnamed_addr in aliases:

* It is a property of how it is accessed, not of the data itself.
* It is perfectly possible to write code that depends on the address
of an alias.

This patch then makes unname_addr legal for aliases. One side effect is that
the syntax changes for a corner case: In globals, unnamed_addr is now printed
before the address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210302 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-06 01:20:28 +00:00
Alexey Samsonov
bbd34136f3 Fix markup for -debug-only option
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210300 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-05 23:12:43 +00:00
Tom Roeder
5d0f7af3dc Add a new attribute called 'jumptable' that creates jump-instruction tables for functions marked with this attribute.
It includes a pass that rewrites all indirect calls to jumptable functions to pass through these tables.

This also adds backend support for generating the jump-instruction tables on ARM and X86.
Note that since the jumptable attribute creates a second function pointer for a
function, any function marked with jumptable must also be marked with unnamed_addr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210280 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-05 19:29:43 +00:00
Yaron Keren
4db3ad47fc Document how to select build configuration with Visual C++ IDE or command line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210273 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-05 16:42:26 +00:00
Justin Bogner
e5d8481310 docs: Remove documentation for legacy PGO options
Late last year r191835 removed a largely unmaintained legacy PGO
infrastructure, but some of the docs were missed. Since these docs are
for things that don't actually exist anymore, they should be removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210165 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-04 06:29:38 +00:00
Rafael Espindola
2d21b25393 Allow alias to point to an arbitrary ConstantExpr.
This  patch changes GlobalAlias to point to an arbitrary ConstantExpr and it is
up to MC (or the system assembler) to decide if that expression is valid or not.

This reduces our ability to diagnose invalid uses and how early we can spot
them, but it also lets us do things like

@test5 = alias inttoptr(i32 sub (i32 ptrtoint (i32* @test2 to i32),
                                 i32 ptrtoint (i32* @bar to i32)) to i32*)

An important implication of this patch is that the notion of aliased global
doesn't exist any more. The alias has to encode the information needed to
access it in its metadata (linkage, visibility, type, etc).

Another consequence to notice is that getSection has to return a "const char *".
It could return a NullTerminatedStringRef if there was such a thing, but when
that was proposed the decision was to just uses "const char*" for that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210062 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-03 02:41:57 +00:00
Alp Toker
04de60e28f GraphWriter: detect graph viewer programs at runtime
Replace the crufty build-time configure checks for program paths with
equivalent runtime logic.

This lets users install graphing tools as needed without having to reconfigure
and rebuild LLVM, while eliminating a long chain of inappropriate compile
dependencies that included GUI programs and the windowing system.

Additional features:

 * Support the OS X 'open' command to view graphs generated by any of the
   Graphviz utilities. This is an alternative to the Graphviz OS X UI which is
   no longer available on Mountain Lion.

 * Produce informative log output upon failure to indicate which programs can
   be installed to view graphs.

Ping me if this doesn't work for your particular environment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210001 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-02 01:40:04 +00:00
Sanjay Patel
6126c55782 fixed more typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209921 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-30 21:18:13 +00:00
Sanjay Patel
26476d32d3 added link to CMake page
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209918 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-30 21:07:25 +00:00
Sanjay Patel
c6d0c90b30 fixed typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209916 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-30 20:55:55 +00:00
Jeroen Ketema
3fda4b2cd8 Sync list of targets with configure's reality
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209855 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-29 22:23:22 +00:00
Sanjay Patel
9139823866 fixed a few typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209768 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-28 20:07:37 +00:00
Rafael Espindola
665d42accf [pr19844] Add thread local mode to aliases.
This matches gcc's behavior. It also seems natural given that aliases
contain other properties that govern how it is accessed (linkage,
visibility, dll storage).

Clang still has to be updated to expose this feature to C.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209759 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-28 18:15:43 +00:00
Reid Kleckner
54ba0dfb55 Wording fix for llvm.global_dtors docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209687 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-27 21:35:17 +00:00
Rafael Espindola
b84ced649e Fix link.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209640 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-26 21:30:40 +00:00
Tim Northover
29f94c7201 AArch64/ARM64: move ARM64 into AArch64's place
This commit starts with a "git mv ARM64 AArch64" and continues out
from there, renaming the C++ classes, intrinsics, and other
target-local objects for consistency.

"ARM64" test directories are also moved, and tests that began their
life in ARM64 use an arm64 triple, those from AArch64 use an aarch64
triple. Both should be equivalent though.

This finishes the AArch64 merge, and everyone should feel free to
continue committing as normal now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209577 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-24 12:50:23 +00:00
Pekka Jaaskelainen
4f22c980f4 Updated the llvm.mem.parallel_loop_access semantics to include the possibility
to have only some of the loop's memory instructions be annotated and still _help_
the loop carried dependence analysis. 

This was discussed in the llvmdev ML (topic: "parallel loop metadata question").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209507 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-23 11:35:46 +00:00
Simon Atanasyan
84a0dc323d [YAML] Add an optional argument EnumMask to the yaml::IO::bitSetCase().
Some bit-set fields used in ELF file headers in fact contain two parts.
The first one is a regular bit-field. The second one is an enumeraion.
For example ELF header `e_flags` for MIPS target might contain the
following values:

Bit-set values:

  EF_MIPS_NOREORDER = 0x00000001
  EF_MIPS_PIC       = 0x00000002
  EF_MIPS_CPIC      = 0x00000004
  EF_MIPS_ABI2      = 0x00000020

Enumeration:

  EF_MIPS_ARCH_32   = 0x50000000
  EF_MIPS_ARCH_64   = 0x60000000
  EF_MIPS_ARCH_32R2 = 0x70000000
  EF_MIPS_ARCH_64R2 = 0x80000000

For printing bit-sets we use the `yaml::IO::bitSetCase()`. It does not
support bit-set/enumeration combinations and prints too many flags from
an enumeration part. This patch fixes this problem. New method
`yaml::IO::maskedBitSetCase()` handle "enumeration" part of bitset
defined by provided mask.

Patch reviewed by Nick Kledzik and Sean Silva.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209504 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-23 08:07:09 +00:00
Eric Christopher
ff93350aa6 Update some AliasAnalysis pass docs for getAdjustedAnalysisPointer.
Patch by George Burgess.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209467 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-22 19:38:25 +00:00
Eric Christopher
68c7a1cb98 Clean up language and grammar.
Based on a patch by jfcaron3@gmail.com!
PR19806

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209216 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-20 17:11:11 +00:00
Nick Lewycky
fe47ebfad3 Add 'nonnull', a new parameter and return attribute which indicates that the pointer is not null. Instcombine will elide comparisons between these and null. Patch by Luqman Aden!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209185 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-20 01:23:40 +00:00
Alexey Samsonov
df0d63dec4 Add documentation for llvm-dwarfdump tool
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209173 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-19 22:53:29 +00:00
Alexey Samsonov
bf6e3f9257 [DWARF parser] Teach DIContext to fetch short (non-linkage) function names for a given address.
Change --functions option in llvm-symbolizer tool to accept
values "none", "short" or "linkage". Update the tests and docs
accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209050 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-17 00:07:48 +00:00
Reid Kleckner
1ce3088669 Add comdat key field to llvm.global_ctors and llvm.global_dtors
This allows us to put dynamic initializers for weak data into the same
comdat group as the data being initialized.  This is necessary for MSVC
ABI compatibility.  Once we have comdats for guard variables, we can use
the combination to help GlobalOpt fire more often for weak data with
guarded initialization on other platforms.

Reviewers: nlewycky

Differential Revision: http://reviews.llvm.org/D3499

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209015 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-16 20:39:27 +00:00
Alp Toker
727273b11c Fix typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208839 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-15 01:52:21 +00:00
Sylvestre Ledru
df75220bc7 Update of the documentation: I think we are now happy with Phabricator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208764 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-14 09:22:15 +00:00
Jay Foad
8517c90a0a Fix strange typo in markup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208759 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-14 08:10:16 +00:00
James Molloy
05052f660b [ARM64-BE] Correct grammar mistake pointed out by Tobias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208580 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-12 15:30:31 +00:00
James Molloy
85918049ab [ARM64-BE] Add sphinx documentation for the ARM64 NEON implementation.
There are some interesting decisions based on non-obvious rationale in
the ARM64-BE NEON implementation - decent documentation is definitely required.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208577 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-12 15:13:39 +00:00
Hal Finkel
70a83b490e [PowerPC] Add global named register support
Support for the intrinsics that read from and write to global named registers
is added for r1, r2 and r13 (depending on the subtarget).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208509 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-11 19:29:11 +00:00
Reid Kleckner
d30c11edde Revert "[ms-cxxabi] Add a new calling convention that swaps 'this' and 'sret'"
This reverts commit r200561.

This calling convention was an attempt to match the MSVC C++ ABI for
methods that return structures by value.  This solution didn't scale,
because it would have required splitting every CC available on Windows
into two: one for methods and one for free functions.

Now that we can put sret on the second arg (r208453), and Clang does
that (r208458), revert this hack.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208459 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-09 22:56:42 +00:00
Duncan P. N. Exon Smith
76c17d324c IR: Don't allow non-default visibility on local linkage
Visibilities of `hidden` and `protected` are meaningless for symbols
with local linkage.

  - Change the assembler to reject non-default visibility on symbols
    with local linkage.

  - Change the bitcode reader to auto-upgrade `hidden` and `protected`
    to `default` when the linkage is local.

  - Update LangRef.

<rdar://problem/16141113>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208263 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-07 22:57:20 +00:00
Daniel Sanders
d80222a48b [tablegen] Add !listconcat operator with the similar semantics as !strconcat
Summary:
It concatenates two or more lists. In addition to the !strconcat semantics
the lists must have the same element type.

My overall aim is to make it easy to append to Instruction.Predicates
rather than override it. This can be done by concatenating lists passed as
arguments, or by concatenating lists passed in additional fields.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: hfinkel, llvm-commits

Differential Revision: http://reviews.llvm.org/D3506

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208183 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-07 10:13:19 +00:00
Justin Bogner
ffb8718ee5 llvm-cov: Document --no-output in the command guide
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208151 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-07 02:33:58 +00:00
Renato Golin
22f779d1fd Implememting named register intrinsics
This patch implements the infrastructure to use named register constructs in
programs that need access to specific registers (bare metal, kernels, etc).

So far, only the stack pointer is supported as a technology preview, but as it
is, the intrinsic can already support all non-allocatable registers from any
architecture.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208104 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-06 16:51:25 +00:00
Bob Wilson
534ec26d07 Add some details to the llvm-cov documentation. <rdar://problem/15819496>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208098 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-06 15:58:06 +00:00
Richard Smith
64cd55a126 Update programmers manual to cover llvm::function_ref, and add a note to the
coding standard suggesting using it instead of the (unavailable) std::function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208067 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-06 07:45:39 +00:00
Richard Smith
2efa833c4e Revert accidentally-committed files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208034 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-06 01:46:26 +00:00
Richard Smith
36ecb2ee9d Re-commit r208025, reverted in r208030, with a fix for a conformance issue
which GCC detects and Clang does not!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208033 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-06 01:44:26 +00:00
Rafael Espindola
814442a8cd Be a bit more specific in the release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207981 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-05 17:53:29 +00:00
Rafael Espindola
c6e42b5590 Remove the -disable-cfi option.
This also add a release note about it. If this stays I will cleanup MC
next week.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207977 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-05 17:33:26 +00:00
Alp Toker
0bf9cca8c8 Update docs still mentioning LLVM_ENABLE_CXX11
C++11 is now required.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207914 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-03 15:10:04 +00:00
Yaron Keren
879875f802 Updated Doxygen link for InstIterator.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207906 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-03 12:06:13 +00:00
Yaron Keren
5608a25a73 InstIterator.h lives in llvm/IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207903 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-03 11:30:49 +00:00
Daniel Sanders
1913eeb385 [tablegen] !strconcat accepts more than two arguments but this wasn't documented or tested.
Summary:
* Updated the documentation
* Added a test for >2 arguments
* Added a check for the lexical concatenation
* Made the existing test a bit stricter.

Reviewers: t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, llvm-commits

Differential Revision: http://reviews.llvm.org/D3485

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207865 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-02 19:25:52 +00:00
Yaron Keren
74e9519ef9 Code style fix from Duncan P. N. Exon Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207831 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-02 08:26:30 +00:00
Michael J. Spencer
d4b4f2d340 [IR] Make {extract,insert}element accept an index of any integer type.
Given the following C code llvm currently generates suboptimal code for
x86-64:

__m128 bss4( const __m128 *ptr, size_t i, size_t j )
{
    float f = ptr[i][j];
    return (__m128) { f, f, f, f };
}

=================================================

define <4 x float> @_Z4bss4PKDv4_fmm(<4 x float>* nocapture readonly %ptr, i64 %i, i64 %j) #0 {
  %a1 = getelementptr inbounds <4 x float>* %ptr, i64 %i
  %a2 = load <4 x float>* %a1, align 16, !tbaa !1
  %a3 = trunc i64 %j to i32
  %a4 = extractelement <4 x float> %a2, i32 %a3
  %a5 = insertelement <4 x float> undef, float %a4, i32 0
  %a6 = insertelement <4 x float> %a5, float %a4, i32 1
  %a7 = insertelement <4 x float> %a6, float %a4, i32 2
  %a8 = insertelement <4 x float> %a7, float %a4, i32 3
  ret <4 x float> %a8
}

=================================================

        shlq    $4, %rsi
        addq    %rdi, %rsi
        movslq  %edx, %rax
        vbroadcastss    (%rsi,%rax,4), %xmm0
        retq

=================================================

The movslq is uneeded, but is present because of the trunc to i32 and then
sext back to i64 that the backend adds for vbroadcastss.

We can't remove it because it changes the meaning. The IR that clang
generates is already suboptimal. What clang really should emit is:

  %a4 = extractelement <4 x float> %a2, i64 %j

This patch makes that legal. A separate patch will teach clang to do it.

Differential Revision: http://reviews.llvm.org/D3519

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207801 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-01 22:12:39 +00:00
Yaron Keren
3152576ea4 Update post-r203364 http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20140303/207915.html
and ranged for loops.

http://reviews.llvm.org/D3582



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207755 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-01 12:33:26 +00:00
Saleem Abdulrasool
ddbde80aae ARM: support stack probe emission for Windows on ARM
This introduces the stack lowering emission of the stack probe function for
Windows on ARM. The stack on Windows on ARM is a dynamically paged stack where
any page allocation which crosses a page boundary of the following guard page
will cause a page fault. This page fault must be handled by the kernel to
ensure that the page is faulted in. If this does not occur and a write access
any memory beyond that, the page fault will go unserviced, resulting in an
abnormal program termination.

The watermark for the stack probe appears to be at 4080 bytes (for
accommodating the stack guard canaries and stack alignment) when SSP is
enabled.  Otherwise, the stack probe is emitted on the page size boundary of
4096 bytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207615 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-30 07:05:07 +00:00
Dan Liew
f90262a09d Document recently added sphinx documentation options in
CMake.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207543 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-29 16:13:27 +00:00
Reid Kleckner
710c1a449d Add 'musttail' marker to call instructions
This is similar to the 'tail' marker, except that it guarantees that
tail call optimization will occur.  It also comes with convervative IR
verification rules that ensure that tail call optimization is possible.

Reviewers: nicholas

Differential Revision: http://llvm-reviews.chandlerc.com/D3240

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207143 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-24 20:14:34 +00:00
Sean Silva
423575405d [docs] Add a note to docs/README.txt
Added note to docs/README.txt on how to check the reachibility of
external links in the documentation.

Patch by Dan Liew!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206924 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-22 21:47:53 +00:00
Reid Kleckner
4c464def6a Added Sphinx documentation generation to CMake build system.
The option LLVM_ENABLE_SPHINX option enables the "docs-llvm-html",
"docs-llvm-man" targets but does not build them by default. The
following CMake options have been added that control what targets are
made available

SPHINX_OUTPUT_HTML
SPHINX_OUTPUT_MAN

If LLVM_BUILD_DOCS is enabled then the enabled docs-llvm-* targets will
be built by default and if ``make install`` is run then docs-llvm-html
and docs-llvm-man will be installed (tested on Linux only).

The add_sphinx_target function is in its own file so it can be included
by other projects that use Sphinx for their documentation.

Patch by Daniel Liew <daniel.liew@imperial.ac.uk>!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206655 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-18 21:45:25 +00:00
Reid Kleckner
ed5604850a Remove -simplify-libcalls pass form Passes documentation
This pass was removed in r184459.

Also added note that the InstCombine pass does library call
simplification.

Patch slightly modified from one by Daniel Liew
<daniel.liew@imperial.ac.uk>!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206650 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-18 21:19:06 +00:00
Paul Robinson
c0bbe8259c Fix example for VS2012.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206544 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-18 01:20:08 +00:00
Duncan P. N. Exon Smith
dd0f0d6a9d C++11: Compatibility with (C++03 => MSVC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206481 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-17 18:02:36 +00:00
Duncan P. N. Exon Smith
5bcd7106b5 C++11: Document some limitations imposed by MSVC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206480 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-17 18:02:34 +00:00
Eric Christopher
ac871732b5 Remove documentation for a deleted pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206097 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-12 02:09:17 +00:00
Duncan P. N. Exon Smith
23a6033104 blockfreq: Document BlockFrequencyInfo terminology
Documents terminology used in the forthcoming rewrite of
BlockFrequencyInfo.

<rdar://problem/14292693>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206086 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-11 23:21:07 +00:00
Reid Kleckner
bc1fd917f0 Move the segmented stack switch to a function attribute
This removes the -segmented-stacks command line flag in favor of a
per-function "split-stack" attribute.

Patch by Luqman Aden and Alex Crichton!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205997 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-10 22:58:43 +00:00
David Majnemer
878657074a YAMLIO: Allow scalars to dictate quotation rules
Introduce ScalarTraits::mustQuote which determines whether or not a
StringRef needs quoting before it is acceptable to output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205955 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-10 07:37:33 +00:00
Alp Toker
46d36be2eb Fix some doc and comment typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205899 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-09 14:47:27 +00:00
Sean Silva
2300669d41 [docs] VCS contains a record of authorship
No need to explicitly mention the author in the document.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205793 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-08 21:12:56 +00:00
Sean Silva
0a50cec3cb [docs] Fix up some links to the preferred style.
:doc:`...` and :ref:`...` links help Sphinx keep track the dependencies
between documents and ensure that they are not pointing to nowhere.

Raw HTML links work just fine and are easier for people less familiar
with reST/Sphinx. They are easy to change over to the :doc:/:ref: style
after the fact so this is not a problem.

This commit doesn't fix all of them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205792 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-08 21:06:22 +00:00
Sean Silva
b9a65fd002 [docs] Fix some links
The TableGen docs have changed structure

Patch by Tay Ray Chuan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205744 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-07 22:46:40 +00:00
Sean Silva
ba9e79f7ef [docs] Update link title
docs/TableGen/ is not really just "fundamentals" anymore, but rather
more of a portal for all things TableGen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205743 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-07 22:42:53 +00:00
Sean Silva
71e245c1f6 [docs] Fix some Sphinx warnings that have crept in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205742 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-07 22:29:53 +00:00
Manuel Klimek
d17a4f957e Make docs point to new domain.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205701 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-07 10:21:33 +00:00
Andrew Trick
c8ce9677e6 Stack map docs. Remove some stray markup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205515 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-03 07:08:21 +00:00
Andrew Trick
3b8ad82b39 Minor update to the stack map documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205513 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-03 07:03:28 +00:00
Renato Golin
a5b283ab23 Recover TableGen/LangRef, make it official
Making the new TableGen documentation official and marking the old file as
"Moved". Also, reverting the original LangRef as the normative formal
description of the language, while keeping the "new" LangRef as LangIntro
for the less inlcined to reading language grammars.

We should remove TableGenFundamentals.rst one day, but for now, just a
warning that it moved will have to do, while we make sure there are no more
links to it from elsewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205289 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-01 09:51:49 +00:00
Juergen Ributzka
d8c9577764 [Stackmaps] Update the stackmap format to use 64-bit relocations for the function address and properly align all entries.
This commit updates the stackmap format to version 1 to indicate the
reorganizaion of several fields. This was done in order to align stackmap
entries to their natural alignment and to minimize padding.

Fixes <rdar://problem/16005902>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205254 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-31 22:14:04 +00:00
Mark Seaborn
e2591680b4 Exception handling docs: Clarify how the llvm.eh.* intrinsics are used
The non-SJLJ and SJLJ intrinsics are generated by the frontend and
backend respectively.

Differential Revision: http://llvm-reviews.chandlerc.com/D3010

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205017 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-28 17:08:57 +00:00
Rafael Espindola
f165cf7ce8 Prevent alias from pointing to weak aliases.
This adds back r204781.

Original message:

Aliases are just another name for a position in a file. As such, the
regular symbol resolutions are not applied. For example, given

define void @my_func() {
  ret void
}
@my_alias = alias weak void ()* @my_func
@my_alias2 = alias void ()* @my_alias

We produce without this patch:

        .weak   my_alias
my_alias = my_func
        .globl  my_alias2
my_alias2 = my_alias

That is, in the resulting ELF file my_alias, my_func and my_alias are
just 3 names pointing to offset 0 of .text. That is *not* the
semantics of IR linking. For example, linking in a

@my_alias = alias void ()* @other_func

would require the strong my_alias to override the weak one and
my_alias2 would end up pointing to other_func.

There is no way to represent that with aliases being just another
name, so the best solution seems to be to just disallow it, converting
a miscompile into an error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204934 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 15:26:56 +00:00
Reid Kleckner
7d3c316353 inalloca: *Really* fix the docs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204890 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 01:38:48 +00:00
Reid Kleckner
b1d0dd95ee Remove unneeded stale type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204889 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 01:34:51 +00:00
Reid Kleckner
2ce21220d8 inalloca: Fix incorrect example IR and remove LangRef warning
The LangRef warning wasn't formatting the way I intended it to anyway.

Surprisingly inalloca appears to work, even when optimizations are
enabled.  We generate very bad code for it, but we can self-host and run
lots of big tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204888 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-27 01:32:22 +00:00
Joerg Sonnenberger
dd6d74f064 Clarify that select is only non-branching on the IR-level, it often ends
up as jump table or other forms of branches on the machine level.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204819 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-26 15:30:21 +00:00
Joerg Sonnenberger
25d0cfeb29 Clarify llvm.clear_cache description.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204812 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-26 14:35:21 +00:00
Renato Golin
58839f43de Change @llvm.clear_cache default to call rt-lib
After some discussion on IRC, emitting a call to the library function seems
like a better default, since it will move from a compiler internal error to
a linker error, that the user can work around until LLVM is fixed.

I'm also adding a note on the responsibility of the user to confirm that
the cache was cleared on platforms where nothing is done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204806 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-26 14:01:32 +00:00
Renato Golin
c4b058f9e7 Add @llvm.clear_cache builtin
Implementing the LLVM part of the call to __builtin___clear_cache
which translates into an intrinsic @llvm.clear_cache and is lowered
by each target, either to a call to __clear_cache or nothing at all
incase the caches are unified.

Updating LangRef and adding some tests for the implemented architectures.
Other archs will have to implement the method in case this builtin
has to be compiled for it, since the default behaviour is to bail
unimplemented.

A Clang patch is required for the builtin to be lowered into the
llvm intrinsic. This will be done next.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204802 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-26 12:52:28 +00:00
Rafael Espindola
72db10a995 Revert "Prevent alias from pointing to weak aliases."
This reverts commit r204781.

I will follow up to with msan folks to see what is what they
were trying to do with aliases to weak aliases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204784 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-26 06:14:40 +00:00
Rafael Espindola
33845aa8c4 Prevent alias from pointing to weak aliases.
Aliases are just another name for a position in a file. As such, the
regular symbol resolutions are not applied. For example, given

define void @my_func() {
  ret void
}
@my_alias = alias weak void ()* @my_func
@my_alias2 = alias void ()* @my_alias

We produce without this patch:

        .weak   my_alias
my_alias = my_func
        .globl  my_alias2
my_alias2 = my_alias

That is, in the resulting ELF file my_alias, my_func and my_alias are
just 3 names pointing to offset 0 of .text. That is *not* the
semantics of IR linking. For example, linking in a

@my_alias = alias void ()* @other_func

would require the strong my_alias to override the weak one and
my_alias2 would end up pointing to other_func.

There is no way to represent that with aliases being just another
name, so the best solution seems to be to just disallow it, converting
a miscompile into an error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204781 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-26 04:48:47 +00:00
Aaron Ballman
9f00cd9602 Adding some very nascent information about the clang tablegen backends, with a promise to add more information later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204635 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-24 18:18:31 +00:00
Renato Golin
72270aabf7 Update release notes with EHABI current behaviour
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204598 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-24 11:02:38 +00:00
Renato Golin
ec15d70712 Add overall description, file comments, some structure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204479 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-21 16:49:43 +00:00
Mark Seaborn
9bb9615e1f Remove LowerInvoke's obsolete "-enable-correct-eh-support" option
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

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2014-03-20 19:54:47 +00:00
Eli Bendersky
072228083f Fix a few more grammatic errors in docs/TableGen/index.rst
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2014-03-20 17:59:37 +00:00
Eli Bendersky
f631e0b64e Fix a couple of typos and an inaccurate description in the new TableGen doc
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2014-03-20 17:45:30 +00:00
Renato Golin
1625937ddb Re-factor TableGen docs
This is mainly a movement of content around to give place to new content
allowing different people to add bits to it in the right place. There is some
new content, but mostly to fill the gaps left by text movement.

I'm dropping the old syntax documentation as it has the problem of being
quickly outdated by changes and largely unnecessary to people not involved
in creating the language, but using it, which is the whole point of the
documentation.

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2014-03-20 16:08:34 +00:00
Renato Golin
f48cfddd26 Add IAS/EHABI changes to release notes
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2014-03-18 10:16:15 +00:00
Adrian Prantl
5e8144df32 Switch the type field in DIVariable and DIGlobalVariable over to DITypeRefs.
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.

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2014-03-18 02:34:58 +00:00
Richard Osborne
43cf3f0c91 [docs] Add links to XMOS XCore documentation.
Summary: Add links to XCore ISA and ABI documents.

CC: llvm-commits, rafael

Differential Revision: http://llvm-reviews.chandlerc.com/D2981

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2014-03-14 15:53:50 +00:00
Rafael Espindola
1f21e0dd0d Remove the linker_private and linker_private_weak linkages.
These linkages were introduced some time ago, but it was never very
clear what exactly their semantics were or what they should be used
for. Some investigation found these uses:

* utf-16 strings in clang.
* non-unnamed_addr strings produced by the sanitizers.

It turns out they were just working around a more fundamental problem.
For some sections a MachO linker needs a symbol in order to split the
section into atoms, and llvm had no idea that was the case. I fixed
that in r201700 and it is now safe to use the private linkage. When
the object ends up in a section that requires symbols, llvm will use a
'l' prefix instead of a 'L' prefix and things just work.

With that, these linkages were already dead, but there was a potential
future user in the objc metadata information. I am still looking at
CGObjcMac.cpp, but at this point I am convinced that linker_private
and linker_private_weak are not what they need.

The objc uses are currently split in

* Regular symbols (no '\01' prefix). LLVM already directly provides
whatever semantics they need.
* Uses of a private name (start with "\01L" or "\01l") and private
linkage. We can drop the "\01L" and "\01l" prefixes as soon as llvm
agrees with clang on L being ok or not for a given section. I have two
patches in code review for this.
* Uses of private name and weak linkage.

The last case is the one that one could think would fit one of these
linkages. That is not the case. The semantics are

* the linker will merge these symbol by *name*.
* the linker will hide them in the final DSO.

Given that the merging is done by name, any of the private (or
internal) linkages would be a bad match. They allow llvm to rename the
symbols, and that is really not what we want. From the llvm point of
view, these objects should really be (linkonce|weak)(_odr)?.

For now, just keeping the "\01l" prefix is probably the best for these
symbols. If we one day want to have a more direct support in llvm,
IMHO what we should add is not a linkage, it is just a hidden_symbol
attribute. It would be applicable to multiple linkages. For example,
on weak it would produce the current behavior we have for objc
metadata. On internal, it would be equivalent to private (and we
should then remove private).

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2014-03-13 23:18:37 +00:00
Stephan Tolksdorf
ac01874f19 Test commit - remove trailing whitespace
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2014-03-13 19:07:39 +00:00
Arnold Schwaighofer
8d46932137 Fix whitespace in vectorizer example
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2014-03-12 23:58:07 +00:00
Arnold Schwaighofer
6a7d263e8b Fix vectorizer docs.
This example is not vectorized because LLVM does not prove no-wrapping of
"a[i*7] += ...".

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2014-03-12 23:23:44 +00:00
Rafael Espindola
9802a6cbdc Remove projects/sample.
As an example that was not actually being used, it suffered from a slow bitrot.

The two main issues with it were that it had no cmake support and
included a copy of the autoconf directory. The reality is that
autoconf is not easily composable. The lack of composabilty is why we
have clang options in llvm's configure. Suggesting that users include
a copy of autoconf/ in their projects seems a bad idea.

We are also in the process of switching to cmake, so pushing autoconf
to new project is probably not what we want.

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2014-03-12 22:40:22 +00:00
Rafael Espindola
38048cdb1c Reject alias to undefined symbols in the verifier.
On ELF and COFF an alias is just another name for a position in the file.
There is no way to refer to a position in another file, so an alias to
undefined is meaningless.

MachO currently doesn't support aliases. The spec has a N_INDR, which when
implemented will have a different set of restrictions. Adding support for
it shouldn't be harder than any other IR extension.

For now, having the IR represent what is actually possible with current
tools makes it easier to fix the design of GlobalAlias.

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2014-03-12 20:15:49 +00:00
Tim Northover
ca396e391e IR: add a second ordering operand to cmpxhg for failure
The syntax for "cmpxchg" should now look something like:

	cmpxchg i32* %addr, i32 42, i32 3 acquire monotonic

where the second ordering argument gives the required semantics in the case
that no exchange takes place. It should be no stronger than the first ordering
constraint and cannot be either "release" or "acq_rel" (since no store will
have taken place).

rdar://problem/15996804

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2014-03-11 10:48:52 +00:00
Saleem Abdulrasool
afe381c0a9 Object: rename ARMV7 to ARMNT
The official specifications state the name to be ARMNT (as per the Microsoft
Portable Executable and Common Object Format Specification v8.3).

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2014-03-11 03:08:37 +00:00
Tim Northover
7806d2c9af Docs: remove paragraph about manual account creation.
There's now a normal UI for that, apparently.

Patch by Manuel Jacob.

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2014-03-10 19:24:30 +00:00
David Majnemer
39a09d2b7c IR: Change inalloca's grammar a bit
The grammar for LLVM IR is not well specified in any document but seems
to obey the following rules:

 - Attributes which have parenthesized arguments are never preceded by
   commas.  This form of attribute is the only one which ever has
   optional arguments.  However, not all of these attributes support
   optional arguments: 'thread_local' supports an optional argument but
   'addrspace' does not.  Interestingly, 'addrspace' is documented as
   being a "qualifier".  What constitutes a qualifier?  I cannot find a
   definition.

 - Some attributes use a space between the keyword and the value.
   Examples of this form are 'align' and 'section'.  These are always
   preceded by a comma.

 - Otherwise, the attribute has no argument.  These attributes do not
   have a preceding comma.

Sometimes an attribute goes before the instruction, between the
instruction and it's type, or after it's type.  'atomicrmw' has
'volatile' between the instruction and the type while 'call' has 'tail'
preceding the instruction.

With all this in mind, it seems most consistent for 'inalloca' on an
'inalloca' instruction to occur before between the instruction and the
type.  Unlike the current formulation, there would be no preceding
comma.  The combination 'alloca inalloca' doesn't look particularly
appetizing, perhaps a better spelling of 'inalloca' is down the road.


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2014-03-09 06:41:58 +00:00
Michael Gottesman
fac2487347 [docs] Teach CMake docs build how to generate Qt Creator help/documentation files.
Patch by Konrad Kleine.

Differential Revision: http://llvm-reviews.chandlerc.com/D2967

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2014-03-07 19:19:28 +00:00
Nico Weber
f456d37c4f "Mac OS/X" -> "Mac OS X" spelling fixes for llvm.
Patch from Sean McBride <sean@rogue-research.com>!


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2014-03-07 18:08:54 +00:00
Duncan P. N. Exon Smith
feed88059f C++11: Remove const from in auto guidelines
Using const is orthogonal to guidelines on using auto& and auto*.

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2014-03-07 18:06:15 +00:00
Duncan P. N. Exon Smith
fc9031cdff C++11: Copy pointers with const auto *
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2014-03-07 17:23:29 +00:00
Benjamin Kramer
c1dafe8dc3 [C++11] Replace LLVM-style type traits with C++11 standard ones.
No functionality change.

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2014-03-07 14:42:25 +00:00
Ahmed Charles
6a2154ebd9 [Typo] Fix sentence in CMake documentation.
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2014-03-07 06:24:30 +00:00
Rafael Espindola
40e107d960 Add missing "[unnamed_addr]" to LangRef.rst#functions.
Patch by Manuel Jacob.

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2014-03-07 04:28:28 +00:00
Tobias Grosser
4c16a16505 [LangRef] Improve llvm.mem.parallel_loop_access example
The following changes have been applied:

  - Removed 'align 4'. We can simplify this away, as it does not provide useful
    information in the example.
  - Use named instructions instead of '%0'. This is nicer, but more importantly
    this makes the IR valid. Before we had two assignments to %0 in a single
    example.
  - Add a missing branch instruction to make the loop structure clear.
  - Move one access into outer.for.body to make it not look that empty.
  - The statments that are only in the outer loop body should not reference the
    inner loop metadata, but only the outer loop. Only statements in both loops
    should reference both surrounding loops.
  - Rename the array indexes to make them all independent. Before there were
    identical array indexes in the inner and the outer loop. We want to
    avoid this special case as it may lead to confusion.

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2014-03-05 13:36:04 +00:00
Reid Kleckner
3b9afd3087 Change x86mmx -> x86_mmx in LangRef.rst
The correct name of the type in LLVM assembly is "x86_mmx".  Also remove
the reST label "t_x86mmx" because it was unused anyway.

Patch by Manuel Jacob!

Differential Revision: http://llvm-reviews.chandlerc.com/D2955

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2014-03-05 02:41:37 +00:00
Reid Kleckner
d6e0bca951 LangRef: Remove stale docs on LLVM types in module structure
The distinction between "identified" and "literal" struct types is fully
documented in a later section.

Patch by Philip Reames!

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2014-03-05 02:21:50 +00:00
Chandler Carruth
7225e27b4c [Modules] Move ValueMap to the IR library. While this class does not
directly care about the Value class (it is templated so that the key can
be any arbitrary Value subclass), it is in fact concretely tied to the
Value class through the ValueHandle's CallbackVH interface which relies
on the key type being some Value subclass to establish the value handle
chain.

Ironically, the unittest is already in the right library.

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2014-03-04 11:26:31 +00:00
Reid Kleckner
739dd523e6 Avoid std::function until PR19030 is fixed
We'd like to keep the clang-cl self-host working until we implement
MSVC-compatible RTTI.

Differential Revision: http://llvm-reviews.chandlerc.com/D2930

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2014-03-03 21:12:13 +00:00
Peter Collingbourne
c3835ccef9 Document that std::initializer_list is not always available.
Differential Revision: http://llvm-reviews.chandlerc.com/D2923

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2014-03-03 19:54:42 +00:00
Diego Novillo
6f8c0c0613 Add DWARF discriminator support to DILexicalBlocks.
This adds support for emitting discriminators from DILexicalBlocks.

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2014-03-03 18:53:17 +00:00
Duncan P. N. Exon Smith
59a4517759 C++11: Beware unnecessary copies with auto
It's easy to copy unintentionally when using 'auto', particularly inside
range-based for loops.  Best practise is to use 'const&' unless there's
a good reason not to.

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2014-03-03 16:48:47 +00:00
Duncan P. N. Exon Smith
653638bea4 Clarify struct usage guidelines
The current coding standards restrict the use of struct to PODs, but no
one has been following them.  This patch updates the standards to
clarify when structs are dangerous and describe common practice in LLVM.

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2014-03-03 16:48:44 +00:00
Chandler Carruth
bab807eaa1 [C++11] Suggest placing callable arguments as the last argument to
facilitate the nice formatting of lambdas passed there. Suggested by
Chris during review of my lambda additions, and something I strongly
agree with.

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2014-03-02 09:13:39 +00:00
Chandler Carruth
cfbdd4df6d [C++11] Update the coding standards to provide some important guidance
about a few constructs in C++11 that are worth starting off in
a consistent manner within the codebase.

This will be matched with a change to clang-format's LLVM style which
will switch the options to support C++11 and use these conventions.

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2014-03-02 08:38:35 +00:00
Chris Lattner
a45e3ff4f2 remove an old entry whose link is broken anyway
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2014-03-02 06:37:03 +00:00
Sean Silva
aede1c9884 [docs] Fix some Sphinx warnings.
The docs now build cleanly. Yay!

The following warnings were fixed:

/home/sean/pg/llvm/llvm/docs/HowToReleaseLLVM.rst:364: WARNING: Enumerated list ends without a blank line; unexpected unindent.
/home/sean/pg/llvm/llvm/docs/InAlloca.rst:: WARNING: document isn't included in any toctree

/home/sean/pg/llvm/llvm/docs/CodingStandards.rst:85: WARNING: Title underline too short.

Supported C++11 Language and Library Features
-------------------------------------------
/home/sean/pg/llvm/llvm/docs/CodingStandards.rst:85: WARNING: Title underline too short.

Supported C++11 Language and Library Features
-------------------------------------------
/home/sean/pg/llvm/llvm/docs/GettingStarted.rst:185: WARNING: Explicit markup ends without a blank line; unexpected unindent.
/home/sean/pg/llvm/llvm/docs/GettingStarted.rst:565: WARNING: Explicit markup ends without a blank line; unexpected unindent.
/home/sean/pg/llvm/llvm/docs/GettingStarted.rst:567: WARNING: Block quote ends without a blank line; unexpected unindent.

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2014-03-02 00:21:42 +00:00
Chandler Carruth
f468dea807 [docs] Update the docs to remove my hedging about C++98 vs. C++11. =]
The switch has been thrown. While I'm still watching for any failures or
problems with this, the documentation can go ahead and move forward.

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2014-03-01 02:48:03 +00:00
Chandler Carruth
e6a2102aa2 [docs] Clarify that there isn't much to be done other than watch build
bots when using the standard library facilities. The missing pieces here
aren't always in useful discreet chunks.

Fortunately, the missing pieces are few and far between, and we can
emulate most of them in our headers as needed.

Based on feedback from Lang and Dave.

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2014-02-28 21:59:51 +00:00
Richard Smith
80883b6a27 Add more whitespace to fix more bullets.
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2014-02-28 21:14:25 +00:00
Richard Smith
27f41a3736 Add whitespace to try to fix bulleted list.
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2014-02-28 21:11:28 +00:00
Ben Langmuir
640da197ae Fix some links to C++11 feature papers in the Coding Standards
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2014-02-28 19:37:20 +00:00
Gabor Greif
4a2f39338c add missing 3.4 release
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2014-02-28 19:20:48 +00:00
Chandler Carruth
2dc637fce3 [docs] Add a section to the coding standards about languages and such.
A lot of this is writing down common knowledge and things often
communicated on mailing lists and in discussions. It could live in the
Programmer's Manual alternatively, but that felt slightly less
well-fitting.

It also includes (and was motivated by) the section on the relevant
language standards for LLVM and the specific features that will be
enabled with the switch to C++11.

With this, all of the documentation for the C++11 switch is, I think, in
place. I plan to flip the switch RSN. =]

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2014-02-28 13:35:54 +00:00
Chandler Carruth
72667d1447 [docs] A slight tweak to the intro for the golden rule in the coding
standards.

It claims the document intentionally doesn't give fixed standards for
brace placement or spacing, and then the document goes on to do
precisely that in several places. Instead, try to highlight that even
these rules are simply *guidance* which may be trumped by some other
circumstance or the local conventions of code.

I'm not trying to change the thrust of this part of the document, and if
folks think this does so, I'm happy to re-wordsmith it. I just don't
want it to be so self-contradicting.

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2014-02-28 12:24:18 +00:00
Chandler Carruth
345ca696e7 [docs] Tweak the example to match what is apparantly the desired form
for the style templates we're using.

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2014-02-28 12:14:56 +00:00
Chandler Carruth
a20d48d01a [docs] Switch to external hyperlink references. Much more readable and
hopefully easier to get the formatting right for ReST.

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2014-02-28 12:09:14 +00:00
Chandler Carruth
9447b54039 [docs] Fix my links to use the correct ReST syntax.
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2014-02-28 11:12:14 +00:00
Chandler Carruth
ed0b862022 [docs] Fix 80-column wrap that I messed up.
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2014-02-28 11:11:41 +00:00
Chandler Carruth
67814df2c3 [docs] Tweak discussion of BSDs based on feedback from Roman Divacky.
FreeBSD 10.0 and newer have a modern Clang toolchain that should work
well.

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2014-02-28 11:09:33 +00:00
Chandler Carruth
baed825f97 [docs] Add a big section with details about how to go about acquiring
a more modern host C++ toolchain for Linux distros where folks sometimes
don't have a good option to get one as part of their system.

This is a first cut, so feedback, testing, and suggestions are very,
very welcom. This is one of the last real documentation changes that was
specifically requested prior to switching LLVM and Clang to build in
C++11 mode by default.

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2014-02-28 10:56:57 +00:00
Rafael Espindola
0ff25b31d8 Now that it is possible, use the mangler in IRObjectFile.
A really simple patch marks the end of a lot of yak shaving :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202463 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-28 02:17:23 +00:00
Chandler Carruth
d76403be1d [docs] Stop advertising 'make update'. It isn't implemented in CMake and
seems unlikely to be added. It also doesn't seem like it should be part
of the build system at all (consider out-of-tree builds).

We should probably add nice, easy tool for this that works both for svn
client trees and git-svn client trees, but it probably won't be spelled
"make update".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202430 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 21:19:42 +00:00
Chandler Carruth
36b191fc1c [docs] Actually spell out the new version requirements for the host C++
toolchain of LLVM. These are already being enforced by the build system
and have been discussed quite a few times on the lists, but
documentation is important. =]

Also, garbage collect the majority of the information about broken host
GCC toolchains. These aren't really relevant any more as they're all
older than the minimum requirement. I've left a few notes about
compilers one step older than the current requirement as these compilers
are at least conceivable to use, and it's better to preserve this kind
of hard-won institutional knowledge.

The next step will be some specific docs on how to set up a sufficiently
modern host toolchain if your system doesn't come with one. But that'll
be tomorrow. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202375 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 10:35:57 +00:00
Chandler Carruth
e2eb9a55a8 [docs] Clean up some of the required software to not mention irrelevant
bits of software and to use a modern GCC version.

The Subversion bit was weird anyways -- it has nothing to do with
compiling LLVM. Also, there are many other ways to get at the trunk
source (git, git-svn, etc).

The TeXinfo thing... I have no idea about. But you can get a working
LLVM w/o it pretty easily. If man pages or something are missing, that
hardly seems like a problem. If folks really want this back, let me
know, but it seems mostly like a distraction.

I'd still like to separate this into:
- Required software to compile.
- Optional software to compile.
- Required software for certain *contributor* activities (like
  regenerating configure scripts).

Also we need to mention that there are multiple options for build
systems, and the differences.

Also we should mention Windows.

Also probably other stuff I'm forgetting.

I'm wondering if this whole thing needs to be shot in the head and we
should just start a new, simpler getting started that doesn't have so
many years of accumulated stuff that is no longer relevant.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202373 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:57:48 +00:00
Chandler Carruth
5fb0df0c1c [docs] Switch this table to the simple form as well. No content changed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202372 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:46:09 +00:00
Chandler Carruth
adf2c605f9 [docs] Switch to the incredibly simpler "simple table" form. It now
actually looks like the table on the webpage and is entertainingly
smaller, easier to read, and easier to edit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202371 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:41:13 +00:00
Chandler Carruth
19061ddb5f [docs] Delete tons of bad information in the requirements section of the
getting started guide.

Some highlights:
- I heard there was this Clang compiler that you could use for your
  host compiler. Not sure though.
- We no longer have a GCC frontend with weird build restrictions.
- Windows is doing a bit better than partially supported.
- We nuked everything to do with itanium.
- SPUs? Really?
- Xcode 2.5 and gcc 4.0.1 are really not a concern -- they don't work.
- OMG, we actually tried building LLVM on Alpha? Really?
- PowerPC works pretty well these days.

There is still a lot of stuff here I'm pretty dubious about, but I nuked
most of what was actively misleading, out of date, or patently wrong.
Some of it (mingw stuff especially) isn't really lacking, its just that
the comments here were actively wrong. Hopefully folks that know those
platforms can add back correct / modern information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202370 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 09:33:55 +00:00
Mark Seaborn
1c30a35b0f Exception handling docs: Fix a typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202354 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-27 06:54:04 +00:00
Mark Seaborn
95e9730310 Exception handling docs: Describe landingpad clauses' meanings in more detail
The original text is very terse, so I've expanded on it.

Specifically, in the original text:

 * "The selector value is a positive number if the exception matched a
   type info" -- It wasn't clear that this meant "if the exception
   matched a 'catch' clause".

 * "If nothing is matched, the behavior of the program is
   `undefined`_."  -- It's actually implementation-defined in C++
   rather than undefined, as the new text explains.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202209 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-25 23:48:59 +00:00
Rafael Espindola
9f5066c72c Make DisableIntegratedAS a TargetOption.
This replaces the old NoIntegratedAssembler with at TargetOption. This is
more flexible and will be used to forward clang's -no-integrated-as option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201836 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-21 03:13:54 +00:00
Daniel Sanders
91ba049ec3 Added release note about making all inline assembly parsed (even for assembly
output) when the integrated assembler is enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201770 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-20 09:24:15 +00:00
Sean Silva
7a8ca279cd [docs] Clean up some more llvm-gcc stuff
Some references to llvm-gcc were so crusty that I wasn't sure how to
proceed and so I've left them intact.

I also slipped in a quick peephole fix to use a :doc: link instead of
raw HTML link.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201619 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-19 00:12:34 +00:00
Sean Silva
f7f33ced95 [docs] Nuke some references to llvm-gcc
From a cursory look it seems like all the described commandline options
and such apply to clang just fine, but I'd appreciate a second opinion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201616 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-18 23:56:43 +00:00
Duncan P. N. Exon Smith
ddc5a010a4 PGO: llvm-profdata: tool for merging profiles
Introducing llvm-profdata, a tool for merging profile data generated by
PGO instrumentation in clang.

- The name indicates a file extension of <name>.profdata.  Eventually
  profile data output by clang should be changed to that extension.

- llvm-profdata merges two profiles.  However, the name is more general,
  since it will likely pick up more tasks (such as summarizing a single
  profile).

- llvm-profdata parses the current text-based format, but will be
  updated once we settle on a binary format.

<rdar://problem/15949645>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201535 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-17 23:22:49 +00:00
Nico Rieck
4b3ec1763c Cleanup docs about lit substitutions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201464 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-15 08:35:56 +00:00
Nico Rieck
b556a706f6 Fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201461 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-15 06:02:36 +00:00
Mark Seaborn
440ef85dd0 Add a note about using "Differential Revision:" in commit messages
I noticed this convention from the commit logs.  It seems like it
would be useful to document it, to encourage other committers to link
back to code reviews in their commits.

Differential Revision: http://llvm-reviews.chandlerc.com/D2678

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201160 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-11 16:58:03 +00:00
Sean Silva
81756b98aa [docs] [tblgen] clarify that code fragments are just string literals
Fun fact: looking at the TableGen code (around TGParser.cpp:1166), the
only difference in handling is that adjacent regular string literals are
concatenated in the parser.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201035 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-09 02:54:26 +00:00
Sean Silva
7048c05a03 [docs] [tblgen] There is no "code" type.
Code fragments are just fancy string literals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201034 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-09 02:54:15 +00:00
Sean Silva
f408f0f0d7 [docs] TableGen easter egg: Multiline string literals
They're called code fragments, but they are really multiline string
literals. Just spotted this usage in a patch by Aaron using "code
fragments" for holding documentation text. I remember someone bemoaning
the lack of multiline string literals in TableGen, so I'm explicitly
documenting that code fragments are multiline string literals.

Let it be known that any use case needing multiline string literals in
TableGen (such as descriptions of options, or whatnot) can use use
code fragments (instead of C-style string concatenation or exceedingly
long lines). E.g.

    class Bar<int n>;
    class Baz<int n>;
    class Doc<string desc> {
        string Desc = desc;
    }
    def Foo : Bar<1>, Baz<3>, Doc<[{
    This Foo is a Bar, and also a Baz. It can take 3 values:
        * Qux
        * Quux
        * Quuux
    }]>;

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201033 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-09 02:43:50 +00:00
Rafael Espindola
f39297678b Remove support for not using .loc directives.
Clang itself was not using this. The only way to access it was via llc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200862 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-05 18:00:21 +00:00
Tom Stellard
efb6bb6863 HowToReleaseLLVM: Add information about dot releases
Based on the following discussion:
http://llvm.1065342.n5.nabble.com/LLVM-3-4-stable-releases-td65005.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200772 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-04 17:18:20 +00:00
Dmitri Gribenko
07ce07daa0 Add a note to documentation that Clang + libstdc++ 4.7.2 can not be used to build LLD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200758 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-04 12:02:13 +00:00
Venkatraman Govindaraju
3e5b78d859 Add a note about Clang+LLVM on Sparc64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200699 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-03 15:28:26 +00:00
Duncan P. N. Exon Smith
e6562c5088 Lower llvm.expect intrinsic correctly for i1
LowerExpectIntrinsic previously only understood the idiom of an expect
intrinsic followed by a comparison with zero. For llvm.expect.i1, the
comparison would be stripped by the early-cse pass.

Patch by Daniel Micay.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200664 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-02 22:43:55 +00:00
Josh Magee
cde5c26c46 [stackprotector] Implement the sspstrong rules for stack layout.
This changes the PrologueEpilogInserter and LocalStackSlotAllocation passes to
follow the extended stack layout rules for sspstrong and sspreq.

The sspstrong layout rules are:
 1. Large arrays and structures containing large arrays (>= ssp-buffer-size)
are closest to the stack protector.
 2. Small arrays and structures containing small arrays (< ssp-buffer-size) are
2nd closest to the protector.
 3. Variables that have had their address taken are 3rd closest to the
protector.


Differential Revision: http://llvm-reviews.chandlerc.com/D2546


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200601 91177308-0d34-0410-b5e6-96231b3b80d8
2014-02-01 01:36:16 +00:00
Reid Kleckner
8a24e83550 Implement inalloca codegen for x86 with the new inalloca design
Calls with inalloca are lowered by skipping all stores for arguments
passed in memory and the initial stack adjustment to allocate argument
memory.

Now the frontend is responsible for the memory layout, and the backend
doesn't have to do any work.  As a result these changes are pretty
minimal.

Reviewers: echristo

Differential Revision: http://llvm-reviews.chandlerc.com/D2637

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200596 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-31 23:50:57 +00:00
Reid Kleckner
65c98b9da4 [ms-cxxabi] Add a new calling convention that swaps 'this' and 'sret'
MSVC always places the 'this' parameter for a method first.  The
implicit 'sret' pointer for methods always comes second.  We already
implement this for __thiscall by putting sret parameters on the stack,
but __cdecl methods require putting both parameters on the stack in
opposite order.

Using a special calling convention allows frontends to keep the sret
parameter first, which avoids breaking lots of assumptions in LLVM and
Clang.

Fixes PR15768 with the corresponding change in Clang.

Reviewers: ributzka, majnemer

Differential Revision: http://llvm-reviews.chandlerc.com/D2663

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200561 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-31 17:41:22 +00:00
Matt Arsenault
e932091eb5 Allow speculating llvm.sqrt, fma and fmuladd
This doesn't set errno, so this should be OK.
Also update the documentation to explicitly state
that errno are not set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200501 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-31 00:09:00 +00:00
Juergen Ributzka
014fdcdaf0 [Stackmaps] Record the stack size of each function that contains a stackmap/patchpoint intrinsic.
Re-applying the patch, but this time without using AsmPrinter methods.

Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200481 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-30 18:58:27 +00:00
Juergen Ributzka
d26c0e731c Revert "[Stackmaps] Record the stack size of each function that contains a stackmap/patchpoint intrinsic."
This reverts commit r200444 to unbreak buildbots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200445 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-30 03:34:02 +00:00
Juergen Ributzka
2baaf25bf5 [Stackmaps] Record the stack size of each function that contains a stackmap/patchpoint intrinsic.
Reviewed by Andy

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200444 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-30 03:06:14 +00:00
Juergen Ributzka
6bf3966f7f Extend the preserve_most/all calling convention description in LangRef about the
fact that the argument registers will be preserved too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200441 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-30 02:39:00 +00:00
Renato Golin
6e16651174 Document EHABI enabled by default
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200390 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-29 12:04:13 +00:00
Aaron Ballman
c9e81b28b7 Updating the getting started guide for Visual Studio a smidge.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199934 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-23 20:46:44 +00:00
Chandler Carruth
70662820ee Revert my commit in r199620 that added sections about namespaces to the
coding standards, and instead fix the existing section.

Thanks to Daniel Jasper for pointing out we already had a section
devoted to this topic. Instead of adding sections, just hack on this
section some. Also fix the example in the anonymous namespace section
below it to agree with the new advice.

As a re-cap, this switches the LLVM preferred style to never indent
namespaces. Having two approaches just led to endless (and utterly
pointless) debates about what was "small enough". This wasn't helping
anyone. The no-indent rule is easy to understand and doesn't really make
anything harder to read. Moreover, with tools like clang-format it is
considerably nicer to have simple consistent rules.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199637 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-20 10:15:32 +00:00
Chandler Carruth
5d696a91c8 Add some wording to the coding standards to say how to indent namespaces
(and to mention namespace ending comments). This is based on a quick
discussion on the developer mailing list where there was essentially no
objections to a simple and consistent rule. This should avoid future
debates about whether or not a namespace is "big enough" to indent. It
also matches clang-format's current behavior with LLVM source code which
hasn't really seen any opposition in code reviews that I spot checked.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199620 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-20 01:40:43 +00:00
Reid Kleckner
3cbfa1617f Add an inalloca flag to allocas
Summary:
The only current use of this flag is to mark the alloca as dynamic, even
if its in the entry block.  The stack adjustment for the alloca can
never be folded into the prologue because the call may clear it and it
has to be allocated at the top of the stack.

Reviewers: majnemer

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2571

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199525 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-17 23:58:17 +00:00
Juergen Ributzka
dbee8c1a3f Update LangRef to emphasize the difference between "coldcc" and "preserve_mostcc".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199521 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-17 22:24:35 +00:00
Juergen Ributzka
ceaf829339 Add two new calling conventions for runtime calls
This patch adds two new target-independent calling conventions for runtime
calls - PreserveMost and PreserveAll.
The target-specific implementation for X86-64 is defined as following:
  - Arguments are passed as for the default C calling convention
  - The same applies for the return value(s)
  - PreserveMost preserves all GPRs - except R11
  - PreserveAll preserves all GPRs and all XMMs/YMMs - except R11

Reviewed by Lang and Philip

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199508 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-17 19:47:03 +00:00
Reid Kleckner
ad60d3c304 Change inalloca rules to make it only apply to the last parameter
This makes things a lot easier, because we can now talk about the
"argument allocation", which allocates all the memory for the call in
one shot.

The only functional change is to the verifier for a feature that hasn't
shipped yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199434 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-16 22:59:24 +00:00
Hans Wennborg
268226b9f3 LangRef.rst: fix LangRef data layout text about m specifier, take 2
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199286 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-15 02:49:17 +00:00
Hans Wennborg
37a98536bd LangRef: attempt to fix line breaks
The line breaks around the "m:<mangling>" text in the Data Layout section
look weird. Let's see if this helps.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199285 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-15 02:30:37 +00:00
Nico Rieck
38f68c5a2e Decouple dllexport/dllimport from linkage
Representing dllexport/dllimport as distinct linkage types prevents using
these attributes on templates and inline functions.

Instead of introducing further mixed linkage types to include linkonce and
weak ODR, the old import/export linkage types are replaced with a new
separate visibility-like specifier:

  define available_externally dllimport void @f() {}
  @Var = dllexport global i32 1, align 4

Linkage for dllexported globals and functions is now equal to their linkage
without dllexport. Imported globals and functions must be either
declarations with external linkage, or definitions with
AvailableExternallyLinkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199218 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 15:22:47 +00:00
Nico Rieck
55463f4ec1 Revert "Decouple dllexport/dllimport from linkage"
Revert this for now until I fix an issue in Clang with it.

This reverts commit r199204.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199207 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 12:38:32 +00:00
Nico Rieck
bce07a0c3b Decouple dllexport/dllimport from linkage
Representing dllexport/dllimport as distinct linkage types prevents using
these attributes on templates and inline functions.

Instead of introducing further mixed linkage types to include linkonce and
weak ODR, the old import/export linkage types are replaced with a new
separate visibility-like specifier:

  define available_externally dllimport void @f() {}
  @Var = dllexport global i32 1, align 4

Linkage for dllexported globals and functions is now equal to their linkage
without dllexport. Imported globals and functions must be either
declarations with external linkage, or definitions with
AvailableExternallyLinkage.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199204 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-14 11:55:03 +00:00
Tim Northover
a917400584 Docs: fix sign of division and increase equivocation on code generated.
I should have been a politician.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199092 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-13 10:47:04 +00:00
Juergen Ributzka
4ab3e6c164 [anyregcc] Fix callee-save mask for anyregcc
Use separate callee-save masks for XMM and YMM registers for anyregcc on X86 and
select the proper mask depending on the target cpu we compile for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198985 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-11 01:00:27 +00:00
Rafael Espindola
28cd4b91a5 Add a note about the old asm printer being removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198960 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-10 22:06:26 +00:00
Rafael Espindola
a9ad60c412 Use 'w' instead of 'c' to represent the win32 mangling.
This change was requested to avoid confusion if we ever support non windows coff
systems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198938 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-10 13:42:12 +00:00
Chandler Carruth
36c48cad0d Update the developer policy to more clearly spell out the steps for
contributors to submit patches to the LLVM project. Thanks to Danny,
Chris, Alp, and others for reviewing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198901 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-10 00:08:34 +00:00
Nico Rieck
113906398b Remove mention of old deleted test scripts from testing guide
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198771 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-08 16:30:03 +00:00
Rafael Espindola
177648336a Improve documentation of the 'a' specifier and the '<abi>:<pref>' align pair.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198636 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-06 21:40:24 +00:00
Rafael Espindola
4432a618e5 Fix typo.
Thanks to Owen Anderson for noticing it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198443 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-03 19:42:04 +00:00
Rafael Espindola
8e0f67dcec Make the llvm mangler depend only on DataLayout.
Before this patch any program that wanted to know the final symbol name of a
GlobalValue had to link with Target.

This patch implements a compromise solution where the mangler uses DataLayout.
This way, any tool that already links with Target (llc, clang) gets the exact
behavior as before and new IR files can be mangled without linking with Target.

With this patch the mangler is constructed with just a DataLayout and DataLayout
is extended to include the information the Mangler needs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198438 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-03 19:21:54 +00:00
Rafael Espindola
33cc3f81c1 Remove the 's' DataLayout specification
During the years there have been some attempts at figuring out how to
align byval arguments. A look at the commit log suggests that they
were

* Use the ABI alignment.
* When that was not sufficient for x86-64, I added the 's' specification to
  DataLayout.
* When that was not sufficient Evan added the virtual getByValTypeAlignment.
* When even that was not sufficient, we just got the FE to add the alignment
  to the byval.

This patch is just a simple cleanup that removes my first attempt at fixing the
problem. I also added an AArch64 implementation of getByValTypeAlignment to
make sure this patch is a nop. I also left the 's' parsing for backward
compatibility.

I will send a short email to llvmdev about the change for anyone maintaining
an out of tree target.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198287 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-01 22:29:43 +00:00
NAKAMURA Takumi
0cc6c9b3d9 Update the copyright credits -- Happy new year 2014!
FIXME: Dragonegg may be updated at non-trivial changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@198274 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-01 08:27:31 +00:00
Alexey Samsonov
8d54670b85 Remove link to unexisting llvm-prof docs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197989 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-24 19:58:49 +00:00
Alexey Samsonov
42c9ecb7a4 llvm-symbolizer: add --obj flag to specify a single object file that should be symbolized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-24 19:33:22 +00:00
Andrew Trick
e97b13228a LangRef documentation for the stackmap and patchpoint intrinsics.
These still have "experimental" status, meaning we don't guarantee
backward compatibility. However, they are already actively used by the
open source WebKit project, and have started to be adopted by other
projects.

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2013-12-24 02:57:25 +00:00
Timur Iskhodzhanov
8aa3ff05c1 [COFF] Add support for the .secidx directive
Reviewed at http://llvm-reviews.chandlerc.com/D2445

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2013-12-20 18:15:00 +00:00
Timur Iskhodzhanov
78a613731e Fix a typo in the docs
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197798 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-20 10:32:12 +00:00
Alp Toker
baf8c08693 Fix documentation typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197757 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-20 00:33:39 +00:00
Rafael Espindola
1191926a8a Update the links to the SPARC information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197719 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-19 20:54:33 +00:00
Reid Kleckner
4b70bfc905 Begin adding docs and IR-level support for the inalloca attribute
The inalloca attribute is designed to support passing C++ objects by
value in the Microsoft C++ ABI.  It behaves the same as byval, except
that it always implies that the argument is in memory and that the bytes
are never copied.  This attribute allows the caller to take the address
of an outgoing argument's memory and execute arbitrary code to store
into it.

This patch adds basic IR support, docs, and verification.  It does not
attempt to implement any lowering or fix any possibly broken transforms.

When this patch lands, a complete description of this feature should
appear at http://llvm.org/docs/InAlloca.html .

Differential Revision: http://llvm-reviews.chandlerc.com/D2173

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2013-12-19 02:14:12 +00:00
Eli Bendersky
352168c57e Fix code sample in NVPTX examples: now it compiles to PTX and runs as expected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197498 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-17 14:14:15 +00:00
Renato Golin
09b3900206 Add ARM to release instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197220 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-13 09:39:36 +00:00
Rafael Espindola
2053a06bd5 Use "a" instead of "a0" in DataLayout.
It means exactly the same and is just a bit shorter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197169 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-12 17:21:51 +00:00
Rafael Espindola
bb0e2be6a3 Use Field Lists for the types' "Overview", "Syntax" and "Examples".
Thanks to Sean Silva for the suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196924 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-10 14:53:22 +00:00
Rafael Espindola
f7f74c22b1 Remove the notion of primitive types.
They were out of place since the introduction of arbitrary precision integer
types.

This also synchronizes the documentation to Types.h, so it refers to first class
types and single value types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196661 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-07 19:34:20 +00:00
Vincent Lejeune
d254d3111e Add a RequireStructuredCFG Field to TargetMachine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196634 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-07 01:49:19 +00:00
Yunzhong Gao
9477d57763 Document that dllexported symbols are preserved by optimization passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196523 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-05 18:37:54 +00:00
Alp Toker
087ab613f4 Correct word hyphenations
This patch tries to avoid unrelated changes other than fixing a few
hyphen-related ambiguities and contractions in nearby lines.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196471 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-05 05:44:44 +00:00
Sean Silva
fe50a2661d [LangRef] Remove (non-normative) paragraph that doesn't make sense.
It appears to be referring to nonexistent entities. This must be a
carry-over from an older version of the document.

Patch by Mikael Lyngvig!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196342 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-04 02:19:25 +00:00
Alp Toker
bc134cb1f1 Update the LTO GoldPlugin documentation
* Update build instructions to reflect the current source tree layout.
 * Don't inflict CVS on readers; there's a perfectly good git mirror.
 * configure with --disable-werror making it possible to build using clang.
 * ar and nm-new now support the -plugin option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@196069 91177308-0d34-0410-b5e6-96231b3b80d8
2013-12-02 07:15:33 +00:00
Sean Silva
e50e160348 [docs] Mention gotcha regarding implicit BB numbering
Impetus for the clarification by Mikael Lyngvig.

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2013-11-27 04:55:23 +00:00
Arnaud A. de Grandmaison
7c6be4d558 CMake : optionaly enable LLVM to be compiled with -std=c++11 (default: off)
In some case, it may be required to build LLVM in C++11 mode, as some the subprojects (like lldb) requires it.

This mimics the autoconf behaviour.

However, given the discussions on the switch to C++11 of the codebase, this behaviour should evolve to default to C++11 with some checks of the compiler capabilities.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195727 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-26 10:33:53 +00:00
Benjamin Kramer
1aeae92c07 Remove dangling documentation. llvm-prof was deleted a while ago.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195372 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-21 19:32:37 +00:00
Nick Kledzik
9fd7416b3b YAML I/O add support for validate()
MappingTrait template specializations can now have a validate() method which 
performs semantic checking. For details, see <http://llvm.org/docs/YamlIO.html>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195286 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-21 00:28:07 +00:00
Bill Wendling
85f3f61418 Update to reflect the next release.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195235 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-20 10:10:50 +00:00
Rafael Espindola
72935dd909 Support multiple COFF sections with the same name but different COMDAT.
This is the first step to fix pr17918.

It extends the .section directive a bit, inspired by what the ELF one looks
like. The problem with using linkonce is that given

.section foo
.linkonce....

.section foo
.linkonce

we would already have switched sections when getting to .linkonce. The cleanest
solution seems to be to add the comdat information in the .section itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195148 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-19 19:52:52 +00:00
John Thompson
da1ad53f6a YAML I/O - Added default trait support for std:string. Making another attempt at this, this time doing a clean build on Linux, and running the LLVM, clang, and extra tests, to try to make sure there's no problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195134 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-19 17:28:21 +00:00
Ahmed Bougacha
d9ddaa4acb Docs: tweak code-block spacing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195049 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-18 22:26:59 +00:00
Paul Robinson
fe45fd084d The 'optnone' attribute means don't inline anything into this function
(except functions marked always_inline).
Functions with 'optnone' must also have 'noinline' so they don't get
inlined into any other function.

Based on work by Andrea Di Biagio.


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2013-11-18 21:44:03 +00:00
Daniel Sanders
74e1ee922a [mips][msa] Add MSA to the release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195001 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-18 10:38:47 +00:00
Ahmed Bougacha
b923d2f5f5 TableGen: Generate an enum for all named Operand types in tblgen'd InstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194978 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-17 21:24:41 +00:00
Ahmed Bougacha
0df7f51365 Docs: Clearly separate Operand-related paragraphs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194977 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-17 21:24:37 +00:00
Ahmed Bougacha
3bcf1e3bc0 Docs: Fix typo: NoIntinerary -> NoItinerary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-17 21:24:34 +00:00
Matt Arsenault
07df65cbb1 Mention address space related changes in release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194904 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-16 00:36:46 +00:00
Matt Arsenault
ef1b87a1ad Fix typos.
I somehow didn't notice before that the examples
for addrspacecast use the wrong syntax for addrspace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194868 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 22:43:50 +00:00
Justin Holewinski
2408335d06 [NVPTX] Fix type in usage doc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194821 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 16:08:49 +00:00
Justin Holewinski
224528512b [NVPTX] Update the usage document
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194812 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 13:02:10 +00:00
Renato Golin
868e74bdce Adding some info about stability of ARM boards
Patch by Mikael Lyngvig

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194794 91177308-0d34-0410-b5e6-96231b3b80d8
2013-11-15 08:42:14 +00:00