informative message when they have no description.

llvm-svn: 117190

llvm-svn: 117189

llvm-svn: 117188

llvm-svn: 117187

llvm-svn: 117186

llvm-svn: 117185

llvm-svn: 117184

llvm-svn: 117183

llvm-svn: 117182

Minor tweak so that fixit-errors.c is never compiled; it crashes and pops up a crash dialog on my system.

llvm-svn: 117181

llvm-svn: 117180

If we hit a thread specific breakpoint for another thread, don't report the Exception as the stop reason, you have to report no stop reason.

llvm-svn: 117179

method results to int.  This will only last until we
get accurate type information for Objective-C methods
or some way of making their types inferred by the
parser.

llvm-svn: 117178

llvm-svn: 117177

llvm-svn: 117176

llvm-svn: 117175

framework. It's purpose is not to improve register allocation per se,
but to make it easier to develop powerful live range splitting. I call
it the basic allocator because it is as simple as a global allocator
can be but provides the building blocks for sophisticated register
allocation with live range splitting. 

A minimal implementation is provided that trivially spills whenever it
runs out of registers. I'm checking in now to get high-level design
and style feedback. I've only done minimal testing. The next step is
implementing a "greedy" allocation algorithm that does some register
reassignment and makes better splitting decisions.

llvm-svn: 117174

llvm-svn: 117173

llvm-svn: 117172

llvm-svn: 117171

llvm-svn: 117170

When a block has exactly two uses and the register is both live-in and live-out,
don't isolate the block. We would be inserting two copies, so we haven't really
made any progress.

If the live-in and live-out values separate into disconnected components after
splitting, we would be making progress. We can't detect that for now.

llvm-svn: 117169

llvm-svn: 117168

llvm-svn: 117167

llvm-svn: 117166

llvm-svn: 117165

Apple builds.  Radar 8585383.

llvm-svn: 117164

members in class subobjects of different types. So long as the
underlying declaration sets are the same, and the declaration sets
involve non-instance members, this is not an ambiguity.

llvm-svn: 117163

Fix a horrible bug in all dataflow analyses that use CFGRecStmtVisitor (including live variables analysis).
We shouldn't recurse into CompoundStmts since they are already inlined in the CFG.  This could result in
bogus dead stores warnings (among other things).

llvm-svn: 117162

llvm-svn: 117161

llvm-svn: 117160

the patch. 

llvm-svn: 117159

llvm-svn: 117158

llvm-svn: 117157

llvm-svn: 117156

llvm-svn: 117155

llvm-svn: 117154

llvm-svn: 117153

llvm-svn: 117152

llvm-svn: 117151