Added several helper functions to Stmt to recursively check for different elements (macros, enum constants, etc).

llvm-svn: 107675

if profitable.

llvm-svn: 107673

if (a = 0)

instead of: 

if (a == 0)

Thanks to Jean-Daniel Dupas.

llvm-svn: 107672

llvm-svn: 107671

llvm-svn: 107670

Patch by Kenneth Hoste.

llvm-svn: 107669

llvm-svn: 107668

making all of CallInst's low-level operand accessors
private

If you get compile errors I strongly urge you to
update your code.


I tried to write the necessary clues into the
header where the compiler may point to, but no
guarantees. It works for my GCC.

You have several options to update your code:

- you can use the v2.8 ArgOperand accessors
- you can go via a temporary CallSite
- you can upcast to, say, User and call its
  low-level accessors if your code is definitely
  operand-order agnostic.

If you run into serious problems, please
comment in below thread (and back out this
revision only if absolutely necessary):

<http://groups.google.com/group/llvm-dev/browse_thread/thread/64650cf343b28271>

llvm-svn: 107667

which do not depend on SelectionDAG.

llvm-svn: 107666

llvm-svn: 107665

llvm-svn: 107664

llvm-svn: 107663

llvm-svn: 107662

should be used for.

llvm-svn: 107661

from getPhysicalRegisterRegClass.

llvm-svn: 107660

clarify a few other things.

llvm-svn: 107659

Fix a major regression on COFF targets introduced by r103267: 'discardable' section means that it is used only during the program load and can be discarded afterwards.
This way *only* debug sections can be discarded, but not the opposite. Seems like the copy-and-pasto from ELF code, since there it contains the reverse flag ('alloc').

llvm-svn: 107658

llvm-svn: 107657

llvm-svn: 107656

the pseudo instruction is not at the end of the block.

llvm-svn: 107655

llvm-svn: 107646

llvm-svn: 107645

Add an API to get an Entity associated with a name in the global namespace.

llvm-svn: 107642

llvm-svn: 107641

registers.  Split out testcases per architecture and os
now.

Patch from Nelson Elhage.

llvm-svn: 107640

as nounwind in -fno-exceptions.  Fixes rdar://problem/8090834.

llvm-svn: 107639

Remove the now-unused GRState::isEqual method. Instead of asking if an expression equals a certain value, use SValuator::EvalEQ and GRState::Assume to see if it can, must, or must not equal that value.

llvm-svn: 107638

llvm-svn: 107637

kind.

Also fold some functions that fit on a line to a single line.

llvm-svn: 107636

llvm-svn: 107635

llvm-svn: 107634

Improve NULL-checking for CFRetain/CFRelease. We now remember that the argument was non-NULL, and we report where the null assumption came from (like AttrNonNullChecker already did).

llvm-svn: 107633

llvm-svn: 107632

self-host.  Hopefully these results hold up on different platforms.  

I tried to keep the GNU ObjC runtime happy, but it's hard for me to test.
Reimplement how clang generates IR for exceptions.  Instead of creating new
invoke destinations which sequentially chain to the previous destination,
push a more semantic representation of *why* we need the cleanup/catch/filter
behavior, then collect that information into a single landing pad upon request.

Also reorganizes how normal cleanups (i.e. cleanups triggered by non-exceptional
control flow) are generated, since it's actually fairly closely tied in with
the former.  Remove the need to track which cleanup scope a block is associated
with.

Document a lot of previously poorly-understood (by me, at least) behavior.

The new framework implements the Horrible Hack (tm), which requires every
landing pad to have a catch-all so that inlining will work.  Clang no longer
requires the Horrible Hack just to make exceptions flow correctly within
a function, however.  The HH is an unfortunate requirement of LLVM's EH IR.

llvm-svn: 107631

llvm-svn: 107630

coerce cases (e.g. {double,int}) which avoids fastisel
bailing out at -O0.

llvm-svn: 107628

alloca for an argument.  Make sure the argument gets the proper
decl alignment, which may be different than the type alignment.

This fixes PR7567

llvm-svn: 107627

llvm-svn: 107626

llvm-svn: 107625

llvm-svn: 107624