Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.

llvm-svn: 117667

llvm-svn: 117510

from stores when folding in bitcasts.

llvm-svn: 117265

it isn't unreachable and should not be zapped.  The check for the entry block
was missing in one case: a block containing a unwind instruction.  While there,
do some small cleanups: "M" is not a great name for a Function* (it would be
more appropriate for a Module*), change it to "Fn"; use Fn in more places.

llvm-svn: 117224

llvm-svn: 117213

until other LLVM projects using these are cleaned up.

llvm-svn: 117200

llvm-svn: 117154

it looks like maybe it was supposed to be used in the
test...), so zap it (gcc-4.6 warning).

llvm-svn: 117023

uint64_t, plus fixes for places I missed before.

llvm-svn: 116875

llvm-svn: 116858

they do not also require them.  This allows us to reduce inter-pass linkage
dependencies.

llvm-svn: 116854

use uint64_t.

llvm-svn: 116839

Get rid of static constructors for pass registration.  Instead, every pass exposes an initializeMyPassFunction(), which
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.

llvm-svn: 116820

llvm-svn: 116815

Fixes PR8389.

llvm-svn: 116812

llvm-svn: 116749

llvm-svn: 116743

Patch by Alexander Herz!

llvm-svn: 116733

llvm-svn: 116670

forwarding is implemented with a load/store pair rather than a memcpy.

llvm-svn: 116637

llvm-svn: 116443

llvm-svn: 116390

llvm-svn: 116387

perform initialization without static constructors AND without explicit initialization
by the client.  For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve.  I hope to be able to relax
the latter requirement in the future.

llvm-svn: 116334

Now using a variant of the existing inlining heuristics to decide whether to create a given specialization of a function in PartialSpecialization.  If the total performance bonus across all callsites passing the same constant exceeds the specialization cost, we create the specialization.

llvm-svn: 116158

formulae which become illegal as a result of the offset updating don't
escape.

This is for rdar://8529692. No testcase yet, because the given cases
hit use-list ordering differences.

llvm-svn: 116093

llvm-svn: 116034

one user. This code will be restructured soon and FormulaSorter
is getting in the way.

llvm-svn: 116012

llvm-svn: 116011

not just base registers.

llvm-svn: 116010

llvm-svn: 116009

the old use to the new one.

llvm-svn: 116008

This doesn't usually matter, because the other heuristics usually
succeed regardless, but it's good to keep the register use
bookkeeping consistent.

llvm-svn: 116005

llvm-svn: 116004

llvm-svn: 115996

llvm-svn: 115971

llvm-svn: 115965

llvm-svn: 115933

initialization functions that initialize the set of passes implemented in
that library.  Add C bindings for these functions as well.

llvm-svn: 115927

a header declaring them all.  This is also where we will declare per-library pass-set
initializer functions down the road.

llvm-svn: 115900