Specify GATHER/SCATTER as heavy instructions.

llvm-svn: 189736

This patch implements vector support for  select instruction and adds specific vector instructions : shuffle and insertelement. (tests are also included)
and functions lle_X_memset, lle_X_memcpy added.

Done by Veselov, Yuri (mailto:Yuri.Veselov@intel.com)

llvm-svn: 189735

printing routine. This is made harder to see due to the surprising
formatting, inconsistent brace usage, and repeated conditions that all
test the same thing.

The only "consequence" of this bug is re-assigning 'str' to an empty
string when computing the error string for an error number of 0 in the
event of a non-GNU strerror_r routine. So, nothing to see here other
than cleanup. It did help me find PR17055 in clang-format though.

llvm-svn: 189734

Iterator of std::vector may be implemented as a raw pointer. In
this case ADL does not find the find() function in the std namespace.
For example, this is the case with STDCXX implementation of vector.

Patch by Konstantin Tokarev.

llvm-svn: 189733

part of getting started with LLVM.

The LLVM getting started document is in woeful need of attention. I may
get to some of this, but some random notes for folks interested:

1) We need to separate the getting started steps for folks who are
   interested in the core LLVM libs and nothing else, folks interested
   in a nifty C++ toolchain and nothing else, and folks interested in
   both.
2) We should include documentation for both release archives, svn, and
   git in equal portion, and we should document all of the various
   repositories of interest: llvm, clang, clang-tools-extra,
   compiler-rt, lld, libcxx, test-suite.
3) We should document the CMake build. We should probably document the
   CMake build first, and give a fall-back set of docs for the Makefile
   build for the use cases where that is still the preferred solution.
   This would more closely match the use cases that folks in the open
   source community are likely to have, and would remove a point of
   discrepancy between Linux, Windows, and Mac instructions.
4) Probably a ton of other modernization stuff that I've not thought of
   here.

Anyways, if anyone at all is interested, please help clean up this
document. It is much needed.

llvm-svn: 189732

llvm-svn: 189731

This is under active discussion.

llvm-svn: 189730

llvm-svn: 189729

llvm-svn: 189728

don't exist in libc. This is really not the right way to solve this problem;
but it's not clear to me at this time exactly what is the right way.
If we create stubs here, they will cause link errors because these functions
do not exist in libc.

llvm-svn: 189727

llvm-svn: 189726

Found by valgrind.

llvm-svn: 189725

The existing code missed some edge cases when e.g. we're going to emit sqrtf but
only the availability of sqrt was checked. This happens on odd platforms like
windows.

llvm-svn: 189724

llvm-svn: 189723

SFINAE out duration converting constructor if the constructor would otherwise cause a ratio compile-time overflow.  This fixes LWG 2094.

llvm-svn: 189722

llvm-svn: 189721

* Renames few tests which had extension objtxt to test
* created core directory that contains all the core tests

llvm-svn: 189720

This creates .init_array/.fini_array section for X86_64 ELF
targets and executes init/fini functions specified by the
-init/-fini options respectively.

llvm-svn: 189719

This adds an API to the LinkingContext for flavors to add Internal files
containing atoms that need to appear in the YAML output as well, when -emit-yaml
switch is used.

Flavors can add more internal files for other options that are needed.

llvm-svn: 189718

There was one case that we could hit a DebugValue where I didn't think
to check. DebugValues are evil. No checkinable test case, sorry. It's
an obvious fix.

llvm-svn: 189717

InitializedEntity::EntityKind as an index for one of its %select.  Over time,
EntityKind has been expanded, but the diagnostic text has not been updated.
This adds additional text to the %select to cover the new enum values.  A
comment has been added to the end of the enum regarding this situation.  This
fixes the crasher in PR17043.

llvm-svn: 189716

Here are a few miscellaneous things to tidy up the PPC64 fast-isel
implementation.  I corrected a couple of commentary lapses, and added
documentation of future opportunities.  I also implemented
TargetMaterializeAlloca, which I somehow forgot when I split up the
original huge patch.

Finally, I decided to delete SelectCmp.  I hadn't previously hooked it
in to TargetSelectInstruction(), and when I did I realized it wasn't
serving any useful purpose.  This is only useful for compares that
don't feed a branch in the same block, and to handle that we would
have to have logic to interpret i1 as a condition register.  This
could probably be done, but would require Unseemly Hackery, and
honestly does not seem worth the hassle.

This ends the current patch series.

llvm-svn: 189715

llvm-svn: 189714

llvm-svn: 189713

llvm-svn: 189712

llvm-svn: 189711

llvm-svn: 189710

a windows compatible builtin header.

Currently uses x86intrin.h for implementing intel intrinsics in a clang
specific manner.

llvm-svn: 189709

llvm-svn: 189708

of some sort (but not an object, block pointer or CF pointers), 
and is not annotated with the objc_returns_inner_pointer attribute, 
we should suggest NS_RETURNS_INNER_POINTER annotation for these methods. 

llvm-svn: 189707

This is the last substantive patch I'm planning for fast-isel in the
near future, adding fast selection of integer truncates.  There are
certainly more things that can be improved (many of which are called
out in FIXMEs), but for now we are catching most of the important
cases.

I'll document some of the remaining work in a cleanup patch shortly.

llvm-svn: 189706

llvm-svn: 189705

implementation files.  While doc generation systems don't need this,
humans do benefit from it.  Not everyone reads all code through doxygen.

llvm-svn: 189704

will at least have it linked to /bin/sh for shell script compatibility.

llvm-svn: 189703

Patch by chris.wailes@gmail.com

Adds the 'consumable' attribute that can be attached to classes.  This replaces
the previous method of scanning a class's methods to see if any of them have
consumed analysis attributes attached to them.  If consumed analysis attributes
are attached to methods of a class that isn't marked 'consumable' a warning
is generated.

llvm-svn: 189702

This patch adds fast-isel support for calls (but not intrinsic calls
or varargs calls).  It also removes a badly-formed assert.  There are
some new tests just for calls, and also for folding loads into
arguments on calls to avoid extra extends.

llvm-svn: 189701

Revert "cpp11-migrate: Refactor for driver model of operation"

This reverts commit r189691.
This reverts commit r189689.

This was breaking the phase 1 OS X build for ~2 hours.

https://smooshbase.apple.com/buildbot-internal/builders/phase1%20-%20sanity/builds/9559

I reverted the latter commit since I think the latter depended on the former.

llvm-svn: 189700

llvm-svn: 189699

Fixed a bug where diassembling an instruction that had a prefix would cause LLVM to identify a 1-byte instruction, but then upon querying it for that 1-byte instruction would cause an undefined opcode.

llvm-svn: 189698

llvm-svn: 189697