llvm-svn: 83589

llvm-svn: 83585

llvm-svn: 83575

we should allow a "null" with this dyn_cast.

llvm-svn: 83573

llvm-svn: 83572

llvm-svn: 83571

llvm-svn: 83568

llvm-svn: 83566

llvm-svn: 83565

similar to getTargetExtractSubreg.

llvm-svn: 83564

Do not record line number to implicitly mark start of function if function has arguments. Extra line number entries trip gdb in some cases.

llvm-svn: 83563

llvm-svn: 83556

to declare that they preserve other passes without needing to pull in
additional header file or library dependencies. Convert MachineFunctionPass
and CodeGenLICM to make use of this.

llvm-svn: 83555

llvm-svn: 83549

"LoopVR's logic was copied into ScalarEvolution::getUnsignedRange and 
::getSignedRange. Please delete LoopVR."

llvm-svn: 83531

llvm-svn: 83526

llvm-svn: 83522

llvm-svn: 83521

bugfix. The target may use virtual registers that aren't tracked for re-use but are allocated by the scavenger. The re-use algorithm needs to watch for that.

llvm-svn: 83519

llvm-svn: 83518

llvm-svn: 83513

already on the worklist, and print Visited when an instruction is about to be
visited.  Net, on one input, this reduced the output size by at least 9x.

llvm-svn: 83510

llvm-svn: 83508

llvm-svn: 83506

llvm-svn: 83502

llvm-svn: 83501

llvm-svn: 83500

llvm-svn: 83499

llvm-svn: 83496

llvm-svn: 83494

llvm-svn: 83491

llvm-svn: 83490

llvm-svn: 83489

that a symbol stub section with no attributes can be parsed as in:
.section __TEXT,__picsymbolstub4,symbol_stubs,none,16

llvm-svn: 83488

llvm-svn: 83486

llvm-svn: 83484

llvm-svn: 83483

llvm-svn: 83482

llvm-svn: 83481

to finish it any time soon.  If someone's interested it, they can resurrect it from SVN history.

llvm-svn: 83480