tsan: add __has_feature(thread_sanitizer)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170314 91177308-0d34-0410-b5e6-96231b3b80d8
Fix several formatting problems.

More specifically:
- Improve formatting of static initializers.
- Fix formatting of lines comments in enums.
- Fix formmating of trailing line comments.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170316 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: correct llvm libc++ name


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170326 91177308-0d34-0410-b5e6-96231b3b80d8
Add basic support for splitting before function calls if it can't be
avoided.

This required a minor modification of the memoization as now the
"CurrentPenalty" depends on whether or not we break before the current
token. Therefore, the CurrentPenalty should not be memoized but added
after retrieving a value from memory. This should not affect the runtime
behavior.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170337 91177308-0d34-0410-b5e6-96231b3b80d8
Added support for new property helpers (GNUstep runtime).



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170344 91177308-0d34-0410-b5e6-96231b3b80d8
Revert "Added support for new property helpers (GNUstep runtime)."

This reverts commit r170344. Doesn't even compile.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170351 91177308-0d34-0410-b5e6-96231b3b80d8
Reapply r170344, this time without forgetting to commit the header changes.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170354 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Implement "do not inline large functions many times"
performance heuristic

After inlining a function with more than 13 basic blocks 32 times, we
are not going to inline it anymore. The idea is that inlining large
functions leads to drastic performance implications. Since the function
has already been inlined, we know that we've analyzed it in many
contexts. 

The following metrics are used:
 - Large function is a function with more than 13 basic blocks (we
should switch to another metric, like cyclomatic complexity)
 - We consider that we've inlined a function many times if it's been
inlined 32 times. This number is configurable with -analyzer-config
max-times-inline-large=xx

This heuristic addresses a performance regression introduced with
inlining on one benchmark. The analyzer on this benchmark became 60
times slower with inlining turned on. The heuristic allows us to analyze
it in 24% of the time. The performance improvements on the other
benchmarks I've tested with are much lower - under 10%, which is
expected.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170361 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Tweak the NumFunctionsAnalyzed stat so that it's more useful.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170362 91177308-0d34-0410-b5e6-96231b3b80d8
[parser] Push a semi token for recovery only when it is actually missing.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170363 91177308-0d34-0410-b5e6-96231b3b80d8
Don't include the header outside the include guards, it defeats the purpose of the include guards.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170364 91177308-0d34-0410-b5e6-96231b3b80d8
Just use begin()/end() instead of "&Vector[0], &Vector[0]+Vector.size()".

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170365 91177308-0d34-0410-b5e6-96231b3b80d8
[c-index-test] Fix warnings about unused results from chdir().
Patch from Edwin Vane!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170366 91177308-0d34-0410-b5e6-96231b3b80d8
Fix PR14625 by teaching the driver to detect PWD for assembly files.

This also requires adding support to -cc1as for passing the detecting
PWD down through LLVM's debug info (which in turn required the LLVM
change in r170371).

The test case is weak (we only test the driver behavior) because there
is currently to infrastructure for running cc1as in the test suite. So
those four lines are untested (much like all other lines in that file),
but we have a test for the same pattern using llvm-mc in the LLVM
repository.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170373 91177308-0d34-0410-b5e6-96231b3b80d8
Fix isThisDeclarationADefinition for extern following tentative.

An extern declaration following a tentative definition should not itself be
considered a tentative definition.
Fixes pr14614.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170377 91177308-0d34-0410-b5e6-96231b3b80d8
Rein ubsan's vptr sanitizer back a bit. Per core issue 453, binding a reference
to an object outside its lifetime does not have undefined behavior.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170387 91177308-0d34-0410-b5e6-96231b3b80d8
Add support for passing the main file name down to the assembler
for location information.

Part of PR14624

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170391 91177308-0d34-0410-b5e6-96231b3b80d8
Add an expected parameter for the size of the destination.
<rdar://problem/12622659>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170392 91177308-0d34-0410-b5e6-96231b3b80d8
Use the correct return type (size_t) for these builtins.
<rdar://problem/12646344>


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170393 91177308-0d34-0410-b5e6-96231b3b80d8
More conservative fix for <rdar://problem/12847524> (a crash printing diagnostic ranges).
I'm not really happy with this fix, but I'm confident it's correct.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170397 91177308-0d34-0410-b5e6-96231b3b80d8