This removes some statistics counters and timers which were not used,
adds new counters and timers for some language features that were not
monitored previously and separates the counters and timers into those
which are of interest for investigating user code and those which are
only of interest to the developer of the runtime itself.
The runtime developer statistics are now ony collected if the
additional #define KMP_DEVELOPER_STATS is set.

Additional user statistics which are now collected include:
* Count of nested parallelism (omp parallel inside a parallel region)
* Count of omp distribute occurrences
* Count of omp teams occurrences
* Counts of task related statistics (taskyield, task execution, task
  cancellation, task steal)
* Values passed to omp_set_numtheads
* Time spent in omp single and omp master

None of this affects code compiled without stats gathering enabled,
which is the normal library build mode.

This also fixes the CMake build by linking to the standard c++ library
when building the stats library as it is a requirement.  The normal library
does not have this requirement and its link phase is left alone.

Differential Revision: http://reviews.llvm.org/D11759

llvm-svn: 244677

`InstCombiner::OptimizeOverflowCheck` was asserting an
invariant (operands to binary operations are ordered by decreasing
complexity) that wasn't really an invariant.  Fix this by instead having
`InstCombiner::OptimizeOverflowCheck` establish the invariant if it does
not hold.

llvm-svn: 244676

Let NaClMips32ELTargetInfo inherit arch values for maximum width lock-free
atomic operations.

Differential Revision: http://reviews.llvm.org/D11949

llvm-svn: 244675

Only disable the progress bar when we're generating VS project files,
like we do for XCode. This makes lit use the simple, non-curses progress
bar that looks like this with:

Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Testing Time: 5.87s

llvm-svn: 244674

llvm-svn: 244673

llvm-svn: 244672

llvm-svn: 244671

llvm-svn: 244670

llvm-svn: 244669

llvm-svn: 244668

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11959

llvm-svn: 244667

Add a polymorphic AST matcher for testing whether a constructor or a conversion declaration is marked as explicit or not.

llvm-svn: 244666

Some of the FP comparisons (ueq, one, ult, ule, ugt, uge) are currently broken, I'll fix them in a follow-up.

Reviewers: sunfish

Subscribers: llvm-commits, jfb

Differential Revision: http://reviews.llvm.org/D11924

llvm-svn: 244665

llvm-svn: 244663

llvm-svn: 244662

llvm-svn: 244661

Patch by Jon Chesterfield, thank you!

llvm-svn: 244660

NFC

llvm-svn: 244659

Seems we had some internal uses that include ClangTidyTest.h and weren't
ready for a gtest dependency. Reverting to give Manuel some time to look
into it.

llvm-svn: 244658

llvm-svn: 244657

Summary: This patch adds check for dead blocks and skip them for processSwitchInst(). This will help reduce compilation time.

Reviewers: reames, hans

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11953

llvm-svn: 244656

Summary: Implementation is the same as in AArch64.

Subscribers: aemerson, jfb, llvm-commits, sunfish

Differential Revision: http://reviews.llvm.org/D11956

llvm-svn: 244655

llvm-svn: 244653

Also, add a test for optsize because this was not part of any existing regression test.

llvm-svn: 244651

This non-conforming extension was introduced to make it possible for us
to correctly compile <atomic> in VS 2013 and 2015.  Let's limit its
impact to system headers to encourage portable code.

llvm-svn: 244650

Summary:
For example:

  s6 = s0*s5;
  s2 = s6*s6 + s6;
  ...
  s4 = s6*s3;

We notice that it is possible for s2 is folded to fma (s0, s5, fmul (s6 s6)).
This only happens when Aggressive is true, otherwise hasOneUse() check
already prevents from folding the multiplication with more uses.

Test Plan: test/CodeGen/NVPTX/fma-assoc.ll

Patch by Xuetian Weng

Reviewers: hfinkel, apazos, jingyue, ohsallen, arsenm

Subscribers: arsenm, jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D11855

llvm-svn: 244649

This reverts commit r244633.

We aren't going to be able to use it because the compiler-rt build can
be built standalone without an LLVM source dir *or* an installed copy of
LLVM.

llvm-svn: 244648

compiler-rt can apparently be built without an installed copy of LLVM,
so we can't call its cmake code.

llvm-svn: 244647

Account for the case when uptr is 32-bit instead of trying to fix this case
using the little endian path.

llvm-svn: 244646

Linux must pick it up transitively.

llvm-svn: 244645

Reviewers: lhames, aaron.ballman

Differential Revision: http://reviews.llvm.org/D11779

llvm-svn: 244644

This re-applies r244516 (effectively reverting r244516) without losing
the check that caused failures for VS.

llvm-svn: 244643

Summary: LowerSwitch crashed with the attached test case after deleting the default block. This happened because the current implementation of deleting dead blocks is wrong. After the default block being deleted, it contains no instruction or terminator, and it should no be traversed anymore. However, since the iterator is advanced before processSwitchInst() function is executed, the block advanced to could be deleted inside processSwitchInst(). The deleted block would then be visited next and crash dyn_cast<SwitchInst>(Cur->getTerminator()) because Cur->getTerminator() returns a nullptr. This patch fixes this problem by recording dead default blocks into a list, and delete them after all processSwitchInst() has been done. It still possible to visit dead default blocks and waste time process them. But it is a compile time issue, and I plan to have another patch to add support to skip dead blocks.

Reviewers: kariddi, resistor, hans, reames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11852

llvm-svn: 244642

llvm-svn: 244641

llvm-svn: 244640

llvm-svn: 244639

The test passed for me locally because I had a stale copy of
lld-link2.exe.

llvm-svn: 244638

by allocating a small size (will go through malloc) and then large size.

llvm-svn: 244637

llvm-svn: 244636

llvm-svn: 244635