value in the 64 bit .eh_frame section.

It doesn't however allow exception handling to work
yet since it depends on the correct relocation model
being set in the ELF header flags.


Contributer: Jack Carter
llvm-svn: 171881

The current Intel Atom microarchitecture has a feature whereby
when a function returns early then it is slightly faster to execute
a sequence of NOP instructions to wait until the return address is ready,
as opposed to simply stalling on the ret instruction until
the return address is ready.

When compiling for X86 Atom only, this patch will run a pass,
called "X86PadShortFunction" which will add NOP instructions where less
than four cycles elapse between function entry and return.

It includes tests.

This patch has been updated to address Nadav's review comments
- Optimize only at >= O1 and don't do optimization if -Os is set
- Stores MachineBasicBlock* instead of BBNum
- Uses DenseMap instead of std::map
- Fixes placement of braces

Patch by Andy Zhang.

llvm-svn: 171879

before doing the comparison.

This is because we can't set "FirstInDeclGroup" consistently; for example, when visiting a DeclStmt we will set
it but we don't set it on the result of clang_getCursorDefinition for a reference of the same declaration.

llvm-svn: 171878

attribute when determining whether we need to see an implementation of
a property. Fixes <rdar://problem/12958191>.

llvm-svn: 171877

llvm-svn: 171875

llvm-svn: 171873

llvm-svn: 171872

Code cleanup: refactor the switch statements in the generation of reduction variables into an IR builder call.

llvm-svn: 171871

llvm-svn: 171870

llvm-svn: 171869

llvm-svn: 171868

llvm-svn: 171867

llvm-svn: 171866

llvm-svn: 171865

llvm-svn: 171864

llvm-svn: 171863

In Clang/LLVM this seems to be the more common formatting for ##s. There
might still be case that we miss, but we'll fix those as we go along.

Before:

  #define A(X)
    void function ## X();

After:

  #define A(X)
    void function##X();

llvm-svn: 171862

about _Static_assert with -pedantic.

llvm-svn: 171860

- adds '-h' as an alias for '-help'.
- adds an optional <file> argument
- adds an option -i to in-place edit the given file
- adds a help text to explain what the tool does

llvm-svn: 171858

Fixes pr14835.

llvm-svn: 171857

This is a first step towards supporting more complex structures such
as #ifs inside unwrapped lines. This patch mostly converts the array-based
UnwrappedLine into a linked-list-based UnwrappedLine. Future changes will
allow multiple children for each Token turning the UnwrappedLine into a
tree.

No functional changes intended.

llvm-svn: 171856

- Fixes test case TestConnectRemote

llvm-svn: 171855

Implement -w flag to process launch (allow launching inferior process in different working directory) on Linux/FreeBSD
- fixes test case TestProcessLaunch

llvm-svn: 171854

This hopefully fixes the ARM buildbot.

llvm-svn: 171853

- Turned off -count-only tests as they aren't supported in cpp11-migrate
  yet.
- Updated tests to use new binary name and options to access
  loop-convert transform.
- Fixed header guards to not use restricted names.

Reviewers: klimek, gribozavr
llvm-svn: 171852

PR14782

llvm-svn: 171846

Current targets don't have more than 256 relocations so they don't hit this
limit, but ELF64 actually allows more than 8 bits for a relocation type. These
were being truncated on AArch64.

llvm-svn: 171845

llvm-svn: 171844

llvm-svn: 171843

one file where it is called as a static function. Nuke the declaration
and the definition in lib/CodeGen, along with the include of
SelectionDAG.h from this file.

There is no dependency edge from lib/CodeGen to
lib/CodeGen/SelectionDAG, so it isn't valid for a routine in lib/CodeGen
to reference the DAG. There is a dependency from
lib/CodeGen/SelectionDAG on lib/CodeGen. This breaks one violation of
this layering.

llvm-svn: 171842

I spotted someone confused about this, so remove the heading to make it
clear that they really are a part of Tooling.

llvm-svn: 171841

The availability implies default visibility, so it can change the computed
visibility.

llvm-svn: 171840

Suggested by Dave Blaikie.

llvm-svn: 171839

Ensuring that the Module's FileSpec is not NULL before attempting to deref it for loading the python scripting resource

llvm-svn: 171838

This closes PR14709 and hopefully is a small step towards preventing
similar issues in the future.

llvm-svn: 171837

llvm-svn: 171836

llvm-svn: 171835

llvm-svn: 171834

make sure that vector types do work.

llvm-svn: 171833

llvm-svn: 171832