since the bindings are purged after they are set up. Need to investigate
RemoveDeadBindings algorithm.

llvm-svn: 123374

the comment I added): an extern weak global may have a null address.

llvm-svn: 123373

is "X != 0 -> X" when X is a boolean.  This occurs a lot because of the way
llvm-gcc converts gcc's conditional expressions.  Add this, and a few other
similar transforms for completeness.

llvm-svn: 123372

by LLDB.  Instead of being materialized into the input structure
passed to the expression, variables are left in place and pointers
to them are materialzied into the structure.  Variables not resident
in memory (notably, registers) get temporary memory regions allocated
for them.

Persistent variables are the most complex part of this, because they
are made in various ways and there are different expectations about
their lifetime.  Persistent variables now have flags indicating their
status and what the expectations for longevity are.  They can be
marked as residing in target memory permanently -- this is the
default for result variables from expressions entered on the command
line and for explicitly declared persistent variables (but more on
that below).  Other result variables have their memory freed.

Some major improvements resulting from this include being able to
properly take the address of variables, better and cleaner support
for functions that return references, and cleaner C++ support in
general.  One problem that remains is the problem of explicitly
declared persistent variables; I have not yet implemented the code
that makes references to them into indirect references, so currently
materialization and dematerialization of these variables is broken.

llvm-svn: 123371

llvm-svn: 123370

in the right direction. It eliminated some hacks and will unblock codegen
work. But it's far from being done. It doesn't reject illegal expressions,
e.g. (FOO - :lower16:BAR). It also doesn't work in Thumb2 mode at all.

llvm-svn: 123369

a struct value to a symbolic index into array.
RegionStore can't actually reason about this,
so we were getting bogus warnings about loading
uninitialized values from the array.  The solution
is invalidate the entire array when we cannot
represent the binding explicitly.

Fixes <rdar://problem/8848957>

llvm-svn: 123368

16 bytes for PR8969. Update all testcases accordingly.

llvm-svn: 123367

llvm-svn: 123364

and 'getBasePredecessor()' to 'getPredecessor()'.

Also remove a unneeded save-and-restore of
node builder's tag field.

llvm-svn: 123363

node builder's 'HasGeneratedNode' field.

llvm-svn: 123362

the node builder's "tag" ivar (which we would
like to remove).

llvm-svn: 123361

Fixes PR8967.

llvm-svn: 123360

llvm-svn: 123359

llvm-svn: 123358

llvm-svn: 123357

Call SetFile instead of constructing a temp object and assigning to g_program_filespec for Free BSD port.

llvm-svn: 123356

Don't have the program path be resolved when they already are when assigning g_program_filespec in the Host calls.

llvm-svn: 123355

llvm-svn: 123354

.code 32 if the TargetMachine's isThumb() boolean does not match.  The correct
fix is to switch ARM subtargets at that point and is tracked by rdar://8856789
which is bigger task.

llvm-svn: 123353

llvm-svn: 123352

llvm-svn: 123351

llvm-svn: 123350

llvm-svn: 123349

matching of variadic template template parameters to template
arguments. This paragraph was the subject of ISO C++ committee
document N2555: Extending Variadic Template Template Parameters.

llvm-svn: 123348

llvm-svn: 123347

further on the associated testcase before aborting.

llvm-svn: 123346

llvm-svn: 123345

llvm-svn: 123344

bunch of duplicated checks for parameter pack/non-pack mismatches.

llvm-svn: 123343

llvm-svn: 123342

llvm-svn: 123341

that way, unfortunately. If you want to change them to work additively instead
of a one-variant-kind-per-symbolref, that's great and I completely agree it's
worth doing, but it really should be a separate patch. Until then, this isn't
correct."

So I am reverting this bit until a more opportune time.

llvm-svn: 123340

llvm-svn: 123339

llvm-svn: 123338

llvm-svn: 123337

(static_cast, dynamic_cast, reinterpret_cast, or const_cast) to
improve source-location information. Fixes PR8960.

llvm-svn: 123336

Make sure we don't crash in that case, but simply turn them into %noreg instead.

llvm-svn: 123335

It was leaving dangling pointers in the slot index maps.

llvm-svn: 123334

llvm-svn: 123333