its own library. These functions are bridging between the bitcode reader
and the ll parser which are in different libraries. Previously we didn't
have any good library to do this, and instead played fast and loose with
a "header only" set of interfaces in the Support library. This really
doesn't work well as evidenced by the recent attempt to add timing logic
to the these routines.

As part of this, make them normal functions rather than weird inline
functions, and sink the implementation into the library. Also clean up
the header to be nice and minimal.

This requires updating lots of build system dependencies to specify that
the IRReader library is needed, and several source files to not
implicitly rely upon the header file to transitively include all manner
of other headers.

If you are using IRReader.h, this commit will break you (the header
moved) and you'll need to also update your library usage to include
'irreader'. I will commit the corresponding change to Clang momentarily.

llvm-svn: 177971

llvm-svn: 177970

llvm-svn: 177969

Move the CortexA9 resources into the CortexA9 SchedModel namespace. Define
resource mappings under the CortexA9 SchedModel. Define resources and mappings
for the SwiftModel.

llvm-svn: 177968

This is very much work in progress. Please send me a note if you start to depend
on the added abstract read/write resources. They are subject to change until
further notice.

The old itinerary is still the default.

llvm-svn: 177967

We have the tag when figuring out the fully qualified name, append a suitable name for other types of tags when no name is available.

llvm-svn: 177966

Functions in "(anonymous namespace)" was causing LLDB to crash when trying to complete a type and it would also cause functions arguments to appear in wrong place in frame display when showing function arguments.

llvm-svn: 177965

llvm-svn: 177964

llvm-svn: 177963

it's only really useful if you're going to crash anyways. Use it in the pretty stack trace
printer to kill the compiler if we hang while printing the stack trace.

llvm-svn: 177962

Make register read and write accept $<regname> as valid.
This allows:
(lldb) reg read rbx
     rbx = 0x0000000000000000
(lldb) reg read $rbx
     rbx = 0x0000000000000000
(lldb) reg write $rbx 1
(lldb) reg read $rbx
     rbx = 0x0000000000000001

to function correctly

It is not done at the RegisterContext level because we should keep the internal API clean of this user-friendly behavior and name registers appropriately.
If this ends up being needed in more places we can reconsider.

llvm-svn: 177961

llvm-svn: 177960

Revised to use file list path as reference path, or path provide by new -prefix option.  Revised to use LLVM option parser.

llvm-svn: 177959

(but we happen to get this part right).

llvm-svn: 177958

using-declarations with names which look constructor-like are interpreted as
constructor names.

llvm-svn: 177957

llvm-svn: 177956

llvm-svn: 177955

llvm-svn: 177954

llvm-svn: 177953

[ObjCARC Annotations] Added support for displaying the state of pointers at the bottom/top of BBs of the ARC dataflow analysis for both bottomup and topdown analyses.

This will allow for verification and analysis of the merge function of
the data flow analyses in the ARC optimizer.

The actual implementation of this feature is by introducing calls to
the functions llvm.arc.annotation.{bottomup,topdown}.{bbstart,bbend}
which are only declared. Each such call takes in a pointer to a global
with the same name as the pointer whose provenance is being tracked and
a pointer whose name is one of our Sequence states and points to a
string that contains the same name.

To ensure that the optimizer does not consider these annotations in any
way, I made it so that the annotations are considered to be of IC_None
type.

A test case is included for this commit and the previous
ObjCARCAnnotation commit.

llvm-svn: 177952

[ObjCARC Annotations] Implemented ARC annotation metadata to expose the ARC data flow analysis state in the IR via metadata.

Previously the inner works of the data flow analysis in ObjCARCOpts was hard to
get out of the optimizer for analysis of bugs or testing. All of the current ARC
unit tests are based off of testing the effect of the data flow
analysis (i.e. what statements are removed or moved, etc.). This creates
weakness in the current unit testing regimem since we are not actually testing
what effects various instructions have on the modeled pointer state.
Additionally in order to analyze a bug in the optimizer, one would need to track
by hand what the optimizer was actually doing either through use of DEBUG
statements or through the usage of a debugger, both yielding large loses in
developer productivity.

This patch deals with these two issues by providing ARC annotation
metadata that annotates instructions with the state changes that they cause in
various pointers as well as provides metadata to annotate provenance sources.

Specifically, we introduce the following metadata types:

1. llvm.arc.annotation.bottomup.
2. llvm.arc.annotation.topdown.
3. llvm.arc.annotation.provenancesource.

llvm.arc.annotation.{bottomup,topdown}: These annotations describes a state
change in a pointer when we are visiting instructions bottomup/topdown
respectively. The output format for both is the same:

  !1 = metadata !{metadata !"(test,%x)", metadata !"S_Release", metadata !"S_Use"}

The first element is a string tuple with the following format:

  (function,variable name)

The second two elements of the metadata show the previous state of the
pointer (in this case S_Release) and the new state of the pointer (S_Use). We
write the metadata in such a manner to ensure that it is easy for outside tools
to parse. This is important since I am currently working on a tool for taking
this information and pretty printing it besides the IR and that can be used for
LIT style testing via the generation of an index.

llvm.arc.annotation.provenancesource: This metadata is used to annotate
instructions which act as provenance sources, i.e. ones that introduce a
new (from the optimizer's perspective) non-argument pointer to track. This
enables cross-referencing in between provenance sources and the state changes
that occur to them.

This is still a work in progress. Additionally I plan on committing
later today additions to the annotations that annotate at the top/bottom
of basic blocks the state of the various pointers being tracked.

*NOTE* The metadata support is conditionally compiled into libObjCARCOpts only
when we are producing a debug build of llvm/clang and even so are
disabled by default. To enable the annotation metadata, pass in
-enable-objc-arc-annotations to opt.

llvm-svn: 177951

Added documentation to LangRef for the intrinsic llvm.ptr.annotation.* which for some reason was never written.

llvm-svn: 177950

Checking that the wrong syntax does not give a correct summary after clearing the error messages here

llvm-svn: 177949

its super class or protocols inherit their 
availability/deprecated attribute. // rdar://13467644

llvm-svn: 177948

- It's still considered aligned when the specified alignment is larger
  than the natural alignment;
- The new alignment for the high 128-bit vector should be min(16,
  alignment) as the pointer is advanced by 16, a power-of-2 offset.

llvm-svn: 177947

I know MemoryBuffer might affect this. Still investigating.

llvm-svn: 177946

- Handle the case where the result of 'insert_subvect' is bitcasted
  before 'extract_subvec'. This removes the redundant insertf128/extractf128
  pair on unaligned 256-bit vector load/store on vectors of non 64-bit integer.

llvm-svn: 177945

<rdar://problem/13395022> Strip references when extracting an initializer_list's element type during application of an initialization sequence.

llvm-svn: 177944

This should fix the clang-atom-d2700-ubuntu-rel buildbot.

llvm-svn: 177943

The model isn't hooked up by this patch because the instruction set
isn't fully annotated yet.

llvm-svn: 177942

<rdar://problem/13185264> Don't crash when attempting to redundantly initialize a member of an anonymous union.

llvm-svn: 177941

llvm-svn: 177940

<rdar://problem/13358795> Teach CMake to check Subversion version information at build time, not configure time.

llvm-svn: 177939

Introduce a tiny CMake project to gather Subversion revision information and place it into a header.

llvm-svn: 177938

All the instructions tagged with IIC_DEFAULT had nothing in common, and
we already have a NoItineraries class to represent untagged
instructions.

llvm-svn: 177937

llvm-svn: 177936

llvm-svn: 177935

llvm-svn: 177934

For instance, following transformation will be disabled:
    x + x + x => 3.0f * x;

The problem of these transformations is that it introduces a FP constant, which
following Instruction-Selection pass cannot handle.

Reviewed by Nadav, thanks a lot!

rdar://13445387

llvm-svn: 177933

llvm-svn: 177932