PR4841.  Patch by Craig Smith!

llvm-svn: 98496

label instead of trying to form one based on the BB name (which
causes collisions if the name is empty).  This fixes PR6608

llvm-svn: 98495

llvm-svn: 98494

MachineInstr -> MCInst.  This is what the assembler backend wants,
it relaxes from smaller to larger things.  This fixes rdar://7750815

llvm-svn: 98493

llvm-svn: 98491

llvm-svn: 98490

to get unique assembler temporary labels.

llvm-svn: 98489

llvm-svn: 98487

CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.

llvm-svn: 98486

llvm-svn: 98485

llvm-svn: 98484

llvm-svn: 98483

contain an MCSymbol instead of a label index.

llvm-svn: 98482

with an MCSymbol instead of an immediate.

llvm-svn: 98481

llvm-svn: 98479

llvm-svn: 98477

llvm-svn: 98476

not from MMI.

llvm-svn: 98475

llvm-svn: 98474

llvm-svn: 98471

llvm-svn: 98470

llvm-svn: 98468

Do not force indirect tailcall through fixed registers: eax, r11. Add support to allow loads to be folded to tail call instructions.

llvm-svn: 98465

llvm-svn: 98464

an MCSymbol.  Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID.  Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".

llvm-svn: 98463

them with a counter.

llvm-svn: 98462

consistently use MCSymbol and only call this predicate after
they should have been emitted.

llvm-svn: 98461

llvm-svn: 98460

instead of label ID's.  This cleans up and regularizes a bunch 
of code and makes way for future progress.

Unfortunately, this pointed out to me that JITDwarfEmitter.cpp
is largely copy and paste from DwarfException/MachineModuleInfo
and other places.  This is very sad and disturbing. :(

One major change here is that TidyLandingPads moved from being
called in DwarfException::BeginFunction to being called in
DwarfException::EndFunction.  There should not be any 
functionality change from doing this, but I'm not an EH expert.

llvm-svn: 98459

llvm-svn: 98458

llvm-svn: 98457

llvm-svn: 98456

llvm-svn: 98454

llvm-svn: 98453

llvm-svn: 98451

and passing off ownership to AsmPrinter.  Now MachineModuleInfo
creates it and owns it by value.  This allows us to use MCSymbols
more consistently throughout the rest of the code generator, and
simplifies a bit of code.  This also allows MachineFunction to 
keep an MCContext reference handy, and cleans up the TargetRegistry
interfaces for AsmPrinters.

llvm-svn: 98450

llvm-svn: 98449

Tested: make check-lit && valgrind --dsymutil=yes --leak-check=full unittests/ExecutionEngine/JIT/Debug/JITTests
llvm-svn: 98447

llvm-svn: 98446

llvm-svn: 98445