ARMv8 adds (to both AArch32 and AArch64) acquiring and releasing
variants of the exclusive operations, in line with the C++11 memory
model.

This adds support for two new intrinsics to expose them to C & C++
developers directly: __builtin_arm_ldaex and __builtin_arm_stlex, in
direct analogy with the versions with no implicit barrier.

rdar://problem/15885451

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Summary:
This new debug emission kind supports emitting line location
information in all instructions, but stops code generation
from emitting debug info to the final output.

This mode is useful when the backend wants to track source
locations during code generation, but it does not want to
produce debug info. This is currently used by optimization
remarks (-Rpass, -Rpass-missed and -Rpass-analysis).

When one of the -Rpass flags is used, the front end will enable
location tracking, only if no other debug option is enabled.

To prevent debug information from being generated, a new debug
info kind LocTrackingOnly causes DIBuilder::createCompileUnit() to
not emit the llvm.dbg.cu annotation. This blocks final code generation
from generating debug info in the back end.

Depends on D4234.

Reviewers: echristo, dblaikie

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D4235

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Extend the documentation for "#pragma clang loop" hints to include the unroll
and unroll_count directives.

Patch by Mark Heffernan [http://reviews.llvm.org/D4198]



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Reviewed by: Aaron Ballman and Dmitri Gribenko


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Patch by Janusz Sobczak (slightly extended).
This fixes llvm.org/19929.

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<rdar://problem/16771671>

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Use stringstream instead to convert int to string



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manual.

rdar://problem/17307006

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Init-order and use-after-return modes can currently be enabled
by runtime flags. use-after-scope mode is not really working at the
moment.

The only problem I see is that users won't be able to disable extra
instrumentation for init-order and use-after-scope by a top-level Clang flag.
But this instrumentation was implicitly enabled for quite a while and
we didn't hear from users hurt by it.


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The automated server-side process isn't quite right yet, so this is a newly-generated attribute reference. Tanya is looking into the server process when she gets the chance.

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Summary:
Add hasLocalStorage/hasGlobalStorage matchers for VarDecl nodes.
Update the doc. Also add them to the dynamic registry.

Reviewers: klimek

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D4034

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to the normal non-placement ::operator new and ::operator delete, but allow
optimizations like new-expressions and delete-expressions do.


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Summary:
This adds documentation for -Rpass, -Rpass-missed and -Rpass-analysis.
It also adds release notes for 3.5.

Reviewers: rsmith

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D3730

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This keeps Clang consistent with backend naming conventions.

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According to Aaron, this is being generated on the server now.

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Based on a patch by jfcaron3@gmail.com!
PR19806

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Patch by Adam Strzelecki, thank you!

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With AllowShortBlocksOnASingleLine, clang-format allows:
  if (a) { return; }

Based on patch by Gonzalo BG, thank you!

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cxx_decltype_auto, and fix documentation of cxx_generic_lambdas and
cxx_init_captures to specify the right feature-check name.


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Summary:
This documents the usage of sample profilers with Clang and the
profile format expected by LLVM's optimizers. It also documents the
profile conversion tool used by Linux Perf.

Reviewers: doug.gregor

CC: cfe-commits

Differential Revision: http://reviews.llvm.org/D3402

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Initial implementation of -modules-earch-all option, for searching for symbols in non-imported modules.

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Patch by Daniel Liew <daniel.liew@imperial.ac.uk>!

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Don't install a file using the legacy spelling.

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This fixes llvm.org/PR17242.

Patch by Brian Green, thank you!

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