llvm-svn: 210264

When not optimizing, do not run the IfConverter pass, this makes
debugging more difficult (and causes a testsuite failure in
DebugInfo/unconditional-branch.ll).

llvm-svn: 210263

  * Move the instruction that changes sp outside of the branch delay slot.
  * Bundle-align the target of indirect branch.

Differential Revision: http://llvm-reviews.chandlerc.com/D3928

llvm-svn: 210262

llvm-svn: 210261

Summary:
This patch makes it possible for clang-tidy clients to provide
different options for different translation units. The option, which doesn't
make sense to be file-dependent, was moved to a separate ClangTidyGlobalOptions
struct. Added parsing of ClangTidyOptions.

Reviewers: klimek

Reviewed By: klimek

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3979

llvm-svn: 210260

In standalone build asan-rt is stored in yet another path.

llvm-svn: 210259

llvm-svn: 210258

This sound like a good idea in general.
Also, without this on Android we get add_lit_testsuite() with empty DEPENDS
list, and it does not work well.

llvm-svn: 210257

Pass cflags in a way that's compatible with standalone compiler-rt build.

llvm-svn: 210256

llvm-svn: 210255

Mips2 is a 32-bit architecture.

llvm-svn: 210254

-pthread is no-op on Android. Suppress the unused argument warning.

llvm-svn: 210253

Asan runtime library is always shared on Android, and -shared-libasan is no-op.
Suppress the unused argument warning.

llvm-svn: 210252

Differential Revision: http://reviews.llvm.org/D3949

llvm-svn: 210250

r210177 added Makefiles to the lld project. 
This revision enables the automatic build of lld when the sources are found in tools/lld.

llvm-svn: 210245

llvm-svn: 210244

This reverts accidental commit r210240.

llvm-svn: 210243

isCoalescedAway(x) is faster than replacement(x) != x as the former
does not follow the replacement atom chain. Also it's easier to use.

llvm-svn: 210242

Rather than outside of the handler function to make the code simple.

llvm-svn: 210241

COFF supports a feature similar to ELF's section groups. This
patch implements it.

In ELF, section groups are identified by their names, and they are
treated somewhat differently from regular symbols. In COFF, the
feature is realized in a more straightforward way. A section can
have an annotation saying "if Nth section is linked, link this
section too."

Implementing such feature is easy. We can add a reference from a
target atom to an original atom, so that if the target is linked,
the original atom is also linked. If not linked, both will be
dead-stripped. So they are treated as a group.

I added a new reference type, kindAssociate. It does nothing except
preventing referenced atoms from being dead-stripped.

No change to the Resolver is needed.

Reviewers: Bigcheese, shankarke, atanasyan

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D3946

llvm-svn: 210240

Fix coverage for files with global constructors again. Adds a testcase to the commit from r206671, as requested by David Blaikie.

llvm-svn: 210239

I've already spoken to Alp and he signed off on making this one change, so that our buildbots
go green in the short term.

llvm-svn: 210238

Revert r210221 again, due to a crash Richard Smith has provided involving self-hosting LLVM with libc++.

Test case coming, once I reduce it.

llvm-svn: 210236

Android is removing sys/timeb.h because it was removed in POSIX 2008.

llvm-svn: 210235

DebugInfo: Reuse existing LexicalScope to retrieve the scope's MDNode, rather than looking it up through the DebugLoc.

No functional change intended, just streamlines the abstract variable
lookup/construction to use a common entry point.

llvm-svn: 210234

DebugInfo: Roll argument insertion into variable insertion to ensure arguments are correctly handled in all cases.

No functional change intended.

llvm-svn: 210233

llvm-svn: 210232

Unused arguments were not being added to the argument list, but instead
treated as arbitrary scope variables. This meant they weren't carefully
added in the original argument order.

In this particular example, though, it turns out the argument is only
/mostly/ unused (well, actually it's entirely used, but in a specific
way). It's a struct that, due to ABI reasons, is decomposed into chunks
(exactly one chunk, since it has one member) and then passed. Since only
one of those chunks is used (SROA, etc, kill the original reconstitution
code) we don't have a location to describe the whole variable.

In this particular case, since the struct consists of just the one int,
once we have partial location information, this should have a location
that describes the entire variable (since the piece is the entirety of
the object).

And at some point we'll need to describe the location of even /entirely/
unused arguments so that they can at least be printed on function entry.

llvm-svn: 210231

Bugfix: don't assert if someone manages to declare an operator new/delete template before the builtin operator new/delete.

llvm-svn: 210230

llvm-svn: 210229

DebugInfo: Add comments/assert description to r209674 based on Eric Christopher's post-commit review feedback.

llvm-svn: 210228

use it here too.

llvm-svn: 210227

llvm-svn: 210226

Due to what can only be described as a CRT bug, stdout and amazingly
even stderr are not always flushed upon process termination, especially
when the system is under high threading pressure.  I have found two
repros for this:

1) In lib\Support\Threading.cpp, change sys::Mutex to an
std::recursive_mutex and run check-clang.  Usually between 30 and 40
tests will fail.

2) Add OutputDebugStrings in code that runs during static initialization
and static shutdown.  This will sometimes generate similar failures.

After a substantial amount of troubleshooting and debugging, I found
that I could reproduce this from the command line without running
check-clang.  Simply make the mutex change described in #1, then
manually run the following command many times by running it once, then
pressing Up -> Enter very quickly:

D:\src\llvm\build\vs2013\Debug\bin\c-index-test.EXE -cursor-at=D:\src\llvm\tools\clang\test\Index\targeted-preamble.h:2:15 D:\src\llvm\tools\clang\test\Index\targeted-cursor.c -include D:\src\llvm\build\vs2013\tools\clang\test\Index\Output\targeted-cursor.c.tmp.h -Xclang -error-on-deserialized-decl=NestedVar1      -Xclang -error-on-deserialized-decl=TopVar    | D:\src\llvm\build\vs2013\Debug\bin\FileCheck.EXE D:\src\llvm\tools\clang\test\Index\targeted-cursor.c -check-prefix=PREAMBLE-CURSOR1

Sporadically they will fail, and attaching a debugger to a failed
instance indicates that stdin of FileCheck.exe is empty.

Note that due to the repro in #2, we can rule out a bug in the STL's
mutex implementation, and instead conclude that this is a real flake in
the windows test harness.

Test Plan:
Without patch: Ran check-clang 10 times and saw over 30 Unexpected failures on every run.
With patch: Ran check-clang 10 times and saw 0 unexpected failures across all runs.

Reviewers: rnk

Differential Revision: http://reviews.llvm.org/D4021

Patch by Zachary Turner!

llvm-svn: 210225

llvm-svn: 210224

llvm-svn: 210223

llvm-svn: 210222

Abstract variables within abstract scopes that are entirely optimized
away in their first inlining are omitted because their scope is not
present so the variable is never created. Instead, we should ensure the
scope is created so the variable can be added, even if it's been
optimized away in its first inlining.

This fixes the incorrect debug info in missing-abstract-variable.ll
(added in r210143) and passes an asserts self-hosting build, so
hopefully there's not more of these issues left behind... *fingers
crossed*.

llvm-svn: 210221

library. That results in the linker resolving all references to weak symbols in
the DSO to the definition from within that DSO. Ironically, this rarely causes
observable problems, except that it causes ubsan's own dynamic type check to
spuriously fail (because we fail to properly merge type_info object names).

llvm-svn: 210220

llvm-svn: 210219