This brings the number of linkage computations in "clang -cc1" in SemaExpr.ii
from 58426 to 43134. With -emit-llvm the number goes from 161045 to 145461.

llvm-svn: 182823

llvm-svn: 182822

llvm-svn: 182821

llvm-svn: 182820

llvm-svn: 182819

It was fixed back in r182750, but this is a nice testcase to have.

llvm-svn: 182818

This updates the debug info metadata schema documentation for various
schema changes made recently surrounding filename information for
scopes and the representation of imported entities.

llvm-svn: 182817

llvm-svn: 182816

llvm-svn: 182815

C++ and C differ with respect to the handling of extern void
declarations. Enforce the C++ behavior in C++ mode.

llvm-svn: 182814

llvm-svn: 182813

in an @selector expression has no implementation.
// rdar://14002507

llvm-svn: 182812

llvm-svn: 182811

This gives slightly better precision, specifically, in cases where a non-typed region represents the array
or when the type is a non-array type, which can happen when an array is a result of a reinterpret_cast.

llvm-svn: 182810

Adding support for stopping all threads of multithreaded inferiors on Linux.  Also adding multithreaded test cases.

llvm-svn: 182809

It’s important for us to reason about the cast as it is used in std::addressof. The reason we did not
handle the cast previously was a crash on a test case (see commit r157478). The crash was in
processing array to pointer decay when the region type was not an array. Address the issue, by
just returning an unknown in that case.

llvm-svn: 182808

This patch solves the problem of numeric register values not being accepted:

../set_alias.s:1:11: error: expected valid expression after comma
        .set    r4,$4
                    ^
The parsing of .set directive is changed and handling of symbols in code 
as well to enable this feature. 

The test example is added.

Patch by Vladimir Medic

llvm-svn: 182807

- added code for tracking transition from eStateAttaching to eStateStopped in event listener and handling process continuation there.

Patch by Arthur Evstifeev!

llvm-svn: 182806

llvm-svn: 182804

llvm-svn: 182803

- llvm.loop.parallel metadata has been renamed to llvm.loop to be more generic
  by making the root of additional loop metadata.
  - Loop::isAnnotatedParallel now looks for llvm.loop and associated
    llvm.mem.parallel_loop_access
  - document llvm.loop and update llvm.mem.parallel_loop_access
- add support for llvm.vectorizer.width and llvm.vectorizer.unroll
  - document llvm.vectorizer.* metadata
  - add utility class LoopVectorizerHints for getting/setting loop metadata
  - use llvm.vectorizer.width=1 to indicate already vectorized instead of
    already_vectorized
- update existing tests that used llvm.loop.parallel and
  llvm.vectorizer.already_vectorized

Reviewed by: Nadav Rotem

llvm-svn: 182802

[APInt] Implement tcDecrement as a counterpart to tcIncrement. This is for use in APFloat IEEE-754R 2008 nextUp/nextDown function.

rdar://13852078

llvm-svn: 182801

Previously we would read-modify-write the target bits when processing
relocations for the MCJIT. This had the problem that when relocations
were processed multiple times for the same object file (as they can
be), the result is not idempotent and the values became corrupted.

The solution to this is to take any bits used in the destination from
the pristine object file as LLVM emitted it.

This should fix PR16013 and remote MCJIT on ARM ELF targets.

llvm-svn: 182800

Before this patch the linkage cache was only used by the entry level function
(getLinkage). The function that does the actual computation (getLVForDecl),
never looked at it.

This means that we would not reuse an entry in the cache when getLVForDecl did
a recursive call. This patch fixes that by adding another computation enum
value for when we don't care about the linkage at all and having getLVForDecl
check the cache in that case.

When running "clang -cc1" over SemaExpr.ii this brings the number of linkage
computations from 93749 to 58426. When running "clang -cc1 -emit-llvm -O3" it
goes from 198708 to 161444.

For SemaExpr.ii at least linkage computation is a small enough percentage of
the work that the time difference was in the noise.

When asserts are enabled this patch also causes clang to check the linkage
cache even on recursive calls.

llvm-svn: 182799

Differential Revision: http://llvm-reviews.chandlerc.com/D745

llvm-svn: 182798

- documented the cmake variable LLDB_TEST_ARGS

llvm-svn: 182797

llvm-svn: 182796

llvm-svn: 182795

llvm-svn: 182794

The expression _atomToAddressMap[atom] may modify _atomToAddressMap.

llvm-svn: 182793

llvm-svn: 182792

from a different CU.

We used to print out an error message and fail to generate inlined_subroutine.

If we use ref_addr in the generated DWARF, the DWARF version should be 3 or
above.
rdar://13926659

llvm-svn: 182791

llvm-svn: 182790

llvm-svn: 182789

This made it necessary to remove an error detection which would let us
bail out of braced lists in certain situations of missing "}". However,
as we always entirely escape from the braced list on finding ";", this
should not be a big problem.

With this, we can no format braced lists with uniformat inits:

return { arg1, SomeType { parameter } };

llvm-svn: 182788

llvm-svn: 182787

llvm-svn: 182786

Add WinLinkDriver and connect it to the existing COFF reader. Remaining
parts are still stubs, so while it can now read a COFF file, it still
cannot link or output PE/COFF files yet.

Reviewers: Bigcheese

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D865

llvm-svn: 182784

The size reduction in the RegDiffLists are rather dramatic.  Here are a few
size differences for MCTargetDesc.o files (before and after) in bytes:
R600 - 36160B - 11184B - 69% reduction
ARM - 28480B - 8368B - 71% reduction
Mips - 816B - 576B - 29% reduction

One side effect of dynamically computing the aliases is that the iterator does
not guarantee that the entries are ordered or that duplicates have been removed.
The documentation implies this is a safe assumption and I found no clients that
requires these attributes (i.e., strict ordering and uniqueness).

My local LNT tester results showed no execution-time failures or significant
compile-time regressions (i.e., beyond what I would consider noise) for -O0g,
-O2 and -O3 runs on x86_64 and i386 configurations.
rdar://12906217

llvm-svn: 182783

Giving a timeout for the call to NSPrintForDebugger() that happens when you “po” objects

This is a temporary workaround until a more detailed solution to the general problem of canceling actions is found

llvm-svn: 182782