Enable synthesis of FLOG2 and FEXP2 SelectionDAG nodes from libm calls.  These are already marked as illegal by default.

llvm-svn: 146623

expression with an unknown result type, assume that the result type is
'id'. Fixes <rdar://problem/10400663>.

llvm-svn: 146622

Make loop preheader insertion in LoopSimplify handle the case where the loop header is a landing pad correctly (by splitting the landingpad out of the loop header).  Make some adjustments to the rest of LoopSimplify to make it clear that the rest of LoopSimplify isn't making bad assumptions about the presence of landing pads.  PR11575.

llvm-svn: 146621

diagnostic message are compared.  If either is a substring of the other, then
no error is given.  This gives rise to an unexpected case:

  // expect-error{{candidate function has different number of parameters}}

will match the following error messages from Clang:

  candidate function has different number of parameters (expected 1 but has 2)
  candidate function has different number of parameters

It will also match these other error messages:

  candidate function
  function has different number of parameters
  number of parameters

This patch will change so that the verification string must be a substring of
the diagnostic message before accepting.  Also, all the failing tests from this
change have been corrected.  Some stats from this cleanup:

87 - removed extra spaces around verification strings
70 - wording updates to diagnostics
40 - extra leading or trailing characters (typos, unmatched parens or quotes)
35 - diagnostic level was included (error:, warning:, or note:)
18 - flag name put in the warning (-Wprotocol)

llvm-svn: 146619

to declaresSameEntity(), as a baby step toward tracking forward
declarations of Objective-C classes precisely. Part of
<rdar://problem/10583531>.

llvm-svn: 146618

Re-re-enable compact unwind after fixing a failure in SingleSource/Benchmarks/Shootout-C++/except.cpp and friends. It was encoding the stored registers in the wrong order.

llvm-svn: 146617

so that we can access the attributes of an entity for a reference.

llvm-svn: 146616

in a superclass and the protocols in a protocol list.

llvm-svn: 146615

buffer copy.  Suggestion by Chris Lattner!

llvm-svn: 146614

Replace Decl::isSameEntityAs with a free function declaresSameEntity, which can cope with NULL pointer values

llvm-svn: 146613

the compact unwind claiming that one register was saved before another, which
isn't all that great in general. Process them in the natural order. Reverse the
list only when necessary for the algorithm.

llvm-svn: 146612

clients to disassemble a series of raw bytes as
demonstrated by a new testcase.

In the future, this API will also allow clients
to provide a callback that adds comments for
addresses in the disassembly.

I also modified the SWIG harness to ensure that
Python ByteArrays work as well as strings as
sources of raw data.

llvm-svn: 146611

into Analysis as a standalone function, since there's no need for
it to be in VMCore. Also, update it to use isKnownNonZero and
other goodies available in Analysis, making it more precise,
enabling more aggressive optimization.

llvm-svn: 146610

An aligned constant pool entry may require extra alignment padding where
the new water is created.  Take that into account when computing offset.

Also consider the alignment of other constant pool entries when
splitting a basic block.  Alignment padding may make it necessary to
move the split point higher.

llvm-svn: 146609

llvm-svn: 146608

llvm-svn: 146607

Add more robustness - use PyString_CheckExact(pvalue) to check whether pvalue is a Python string before
calling PyString_AsString(pvalue).  Similar to http://llvm.org/viewvc/llvm-project?rev=146584&view=rev.

llvm-svn: 146606

llvm-svn: 146605

On ARM, peephole optimization for ABS creates a trivial cfg triangle which tempts machine sink to sink instructions in code which is really straight line code. Sometimes this sinking may alter register allocator input such that use and def of a reg is divided by a branch in between, which may result in extra spills. Now mahine sink avoids sinking if final sink destination is post dominator.

Radar 10266272.

llvm-svn: 146604

llvm-svn: 146603

with the correct iterator.
<rdar://problem/10530851>

llvm-svn: 146600

getStreamer().EmitBytes.  Suggestion by Benjamin Kramer!

llvm-svn: 146599

llvm-svn: 146597

freebsd bots happy. In the longer term, we should have a mechanism for moving
constexpr recursion off the call stack, to support the default limit of 512
suggested by the standard.

llvm-svn: 146596

llvm-svn: 146595

Add tests for w/ writeback instruction parsing and encoding.

llvm-svn: 146594

it to the streamer.  rdar://10383898

llvm-svn: 146592

their canonical Decl nodes. Not used yet, but it will be.

llvm-svn: 146591

llvm-svn: 146590

llvm-svn: 146589

In addition to improving the representation, this adds support for assembly
parsing of these instructions.

llvm-svn: 146588

going to be a pointer-to-member constant. Fixes <rdar://problem/10544564>.

llvm-svn: 146587

matches gcc's behavior.

Fixes PR8186.

llvm-svn: 146586

llvm-svn: 146585

LLDBSwigPythonCallCommand crashes when a command script returns an object 

Add more robustness to LLDBSwigPythonCallCommand.  It should check whether the returned Python object
is a string, and only assign it as the error msg when the check holds.
Also add a regression test.

llvm-svn: 146584

r0 = mov #0
r0 = moveq #1

Then the second instruction has an implicit data dependency on the first
instruction. Sadly I have yet to come up with a small test case that
demonstrate the post-ra scheduler taking advantage of this.

llvm-svn: 146583

I need to keep the test itself in the repository since it's the only way I can currently reproduce the issue.

llvm-svn: 146582

llvm-svn: 146580

Work in progress. Parsing for non-writeback, single spaced register lists
works now. The rest have the representations better factored, but still
need more to be able to parse properly.

llvm-svn: 146579

llvm-svn: 146578