to break up CFG diamonds by banishing one of the blocks to the end of
the function, which is bad for code density and branch size.

This does pessimize MultiSource/Benchmarks/Ptrdist/yacr2, the
benchmark cited as the reason for the change, however I've examined
the code and it looks more like a case of gaming a particular
branch than of being generally applicable.

llvm-svn: 84803

(1) Allow the source file to be specified in the actual command line arguments by allowing the
    caller to set 'source_filename' to NULL.

(2) Automatically strip off the arguments '-emit-ast', '-fsyntax-only', and '-c'.

llvm-svn: 84802

llvm-svn: 84801

llvm-svn: 84800

patches for fixes like this instead of committing them directly.

llvm-svn: 84799

llvm-svn: 84798

llvm-svn: 84797

llvm-svn: 84796

llvm-svn: 84795

llvm-svn: 84794

llvm-svn: 84793

llvm-svn: 84792

for a few bugs.

llvm-svn: 84791

llvm-svn: 84790

llvm-svn: 84789

conversion types for builtin overloaded operator candidates; I misread
this section in the standard the first time around.

llvm-svn: 84788

llvm-svn: 84787

llvm-svn: 84786

llvm-svn: 84785

llvm-svn: 84784

llvm-svn: 84783

llvm-svn: 84782

llvm-svn: 84781

for base classe members as well. Test case enhanced for this.

llvm-svn: 84780

immediate operands when they will fit into the using instruction.

llvm-svn: 84778

asm comment styles (## vs #).

llvm-svn: 84777

llvm-svn: 84776

RMW preprocessing stuff was incorrect. Grab the stuff from x86 backend and disable some tests until it will be clever enough to handle them.

llvm-svn: 84775

llvm-svn: 84774

llvm-svn: 84773

Most changes are cleanup, but there is 1 correctness fix:
I fixed InstCombine so that the icmp is removed only if the malloc call is removed (which requires explicit removal because the Worklist won't DCE any calls since they can have side-effects).

llvm-svn: 84772

llvm-svn: 84771

llvm-svn: 84770

llvm-svn: 84769

llvm-svn: 84768

Patch by Johnny Chen.

llvm-svn: 84767

llvm-svn: 84766

- i < getNumElements()  instead of getNumElements() > i
- Make setParent() private
- Fix use of resizeOperands
- Reset HasMetadata bit after removing all metadata attached to an instruction
- Efficient use of iterators

llvm-svn: 84765

llvm-svn: 84764

Change FixOverloadedFunctionReference to return a (possibly new) expression. Substitute TemplateIdRefExprs with DeclRefExprs. Doug, plz review :)

llvm-svn: 84763