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GCC 4.8+ has a PowerPC-specific intrinsic, __builtin_ppc_get_timebase, to do
what Clang's __builtin_readcyclecounter does. For compatibility with code that
uses GCC's spelling (including glibc), support it as well.

Partially fixes PR23681.

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This reverts commit r246468 while we figure out what to do about Basic and AST.

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walking the loaded ModuleFiles looking for lookup tables for the context, store
them all in one place, and merge them together if we find we have too many
(currently, more than 4). If we do merge, include the merged form in our
serialized lookup table, so that downstream readers never need to look at our
imports' tables.

This gives a huge performance improvement to builds with very large numbers of
modules (in some cases, more than a 2x speedup was observed).


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This patch refactors the code to use the GCC installation detector
(modified so that it works in Solaris), and uses
ToolChain::GetFilePath everywhere once it works.

Patch by Xan López <xan@igalia.com>!

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A class without a name for linkage purposes gets a name along the lines
of <unnamed-type-foo> where foo is either the name of a declarator which
defined it (like a variable or field) or a
typedef-name (like a typedef or alias-declaration).

We handled the declarator case correctly but it would fall down during
template instantiation if the declarator didn't share the tag's type.
We failed to handle the typedef-name case at all.

Instead, keep track of the association between the two and keep it up to
date in the face of template instantiation.

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Also:
  - Add a typedef to make working with the result easier.
  - Update callers to use the new function.
  - Make initFeatureMap out of line.

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Summary: Clang should emit "atomicrmw umin/umax" instead of "atomicrmw min/max".

Reviewers: eliben, tra

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D12487

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Removes some boilerplate code. No functionality change intended.

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Proper diagnostic and resolution of mangled names conflicts between C++ methods
and C functions. This patch implements support for functions/methods only;
support for variables is coming separately.

Differential Revision: http://reviews.llvm.org/D11297


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Differential Revision: http://reviews.llvm.org/D12274

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Added codegen for array section in 'depend' clause of 'task' directive. It emits to pointers, one for the begin of array section and another for the end of array section. Size of the section is calculated as (end + 1 - start) * sizeof(basic_element_type).


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Reviewers: pekka.jaaskelainen

Differential Revision: http://reviews.llvm.org/D12470



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In release builds labels are numbers. Matching just the number may result
in false matches where the label is contained in other numbers, such as
14 inside [114 x i8]. A stricter match requiring start of line or > character
before the label avoids these false matches.



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This replaces the filtered generic iterator with a type-specfic one based
on dyn_cast instead of comparing the kind enum. This allows us to use
range-based for loops and eliminates casts. No functionality change
intended.

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const char pointers. In turn, push this through Clang APIs as well,
simplifying a number of bits of code that was handling the oddities of
nullptrs.

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namespace.

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(Re)added debug codegen test for F16C, FMA4, XOP + 3DNow! intrinsics

Part of PR24590

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We cannot tell if an object is past-the-end if its type is incomplete.
Zero sized objects satisfy past-the-end criteria and our object might
turn out to be such an object.

This fixes PR24622.

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whether it can ever produce a constant expression in the case where it has a
void return type and no return statements.


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Change the analyzer's modeling of memcpy to be more precise when copying into fixed-size
array fields. With this change, instead of invalidating the entire containing region the
analyzer now invalidates only offsets for the array itself when it can show that the
memcpy stays within the bounds of the array.

This addresses false positive memory leak warnings of the kind reported by
krzysztof in https://llvm.org/bugs/show_bug.cgi?id=22954

A patch by Pierre Gousseau!

Differential Revision: http://reviews.llvm.org/D11832

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This patch does two things:

1) Don't error about dllimport/export on thread-local static local variables.
   We put those attributes on static locals in dllimport/export functions
   implicitly in case the function gets inlined. Now, for TLS variables this
   is a problem because we can't import such variables, but it's a benign
   problem becase:

2) Make sure we never inline a dllimport function TLS static locals. In fact,
   never inline a dllimport function that references a non-imported function
   or variable (because these are not defined in the importing library). This
   seems to match MSVC's behaviour.

Differential Revision: http://reviews.llvm.org/D12422

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This reverts commit r246223, as it broke all ARM/AArch64 bots.

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This reverts commit r246211, as it broke all ARM/AArch64 bots.

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This reverts commit r246206, as it broke all ARM/AArch64 bots.

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This reverts commit r246204, as it was breaking all ARM/AArch64 bots.

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Summary: Patch by Steven Chamberlain <steven@pyro.eu.org>

Reviewers: uweigand

Differential Revision: http://reviews.llvm.org/D12430

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The test is currently failing on bots:
http://lab.llvm.org:8080/green/job/clang-stage1-cmake-RA-incremental_check/12747/

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These two commits causes llvm LTO bootstrap to hang in ScalarEvolution.

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