to LLVM IR changes with addr label weirdness.  In the testcase, we
generate references to the two bb's when codegen'ing the first
function:

_test1:                                 ## @test1
	leaq	Ltmp0(%rip), %rax
..
	leaq	Ltmp1(%rip), %rax

Then continue to codegen the second function where the blocks
get merged.  We're now smart enough to emit both labels, producing
this code:

_test_fun:                              ## @test_fun
## BB#0:                                ## %entry
Ltmp1:                                  ## Block address taken
Ltmp0:
## BB#1:                                ## %ret
	movl	$-1, %eax
	ret

Rejoice.

llvm-svn: 98595

label is generated, but then the block is deleted.  Since the
value is undefined, we just emit the label right after the entry 
label of the function.  It might matter that the label is in the
same section as the function was afterall.

llvm-svn: 98579

This is a work in progress.

llvm-svn: 98556

llvm-svn: 98526

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

with an MCSymbol instead of an immediate.

llvm-svn: 98481

llvm-svn: 98474

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

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: 98392

some of its callers.

llvm-svn: 98388

llvm-svn: 98378

for a global instead of messing around with string buffers.

llvm-svn: 98366

No functionality change.

llvm-svn: 98363

are inside the function by the target at the point of use.

llvm-svn: 98255

llvm-svn: 98124

Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.

llvm-svn: 98047

failures.

llvm-svn: 98039

beginScope and RecordSourceLine.

llvm-svn: 98035

llvm-svn: 98025

llvm-svn: 98017

MCize it.

llvm-svn: 98010

This is a first step towards eliminating checks in Descriptor constructors.

llvm-svn: 97975

llvm-svn: 97963

This is a first step towards eliminating unncessary constructor checks in light weight DIDescriptor wrappers.

llvm-svn: 97947

segment.

llvm-svn: 96967

and add a sparc implementation that knows about delay slots.  Patch by
Nathan Keynes!

llvm-svn: 96492

llvm-svn: 95781

llvm-svn: 95748

The major win of this is that the code is simpler and they 
print on the same line as the instruction again:

        movl    %eax, 96(%esp)          ## 4-byte Spill
        movl    96(%esp), %eax          ## 4-byte Reload
        cmpl    92(%esp), %eax          ## 4-byte Folded Reload
        jl      LBB7_86

llvm-svn: 95738

OutStreamer.AddBlankLine instead of textually.

llvm-svn: 95734

into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687

direct MCExpr equivalents. Don't use MCExpr::Shr because it isn't
consistent between targets.

llvm-svn: 95620

MCSymbol, we can remove the 'suffix' argument of 
GetBlockAddressSymbol.  Do so.

llvm-svn: 95601

expression; don't go into an infinite loop if it does.

llvm-svn: 95591

in global initializers. Instead of aborting, attempt to fold them on the
spot. If folding succeeds, emit the folded expression instead.

This fixes PR6255.

llvm-svn: 95583

following it. However, the EmitGlobalConstant method wasn't emitting a body for
the constant. The assembler doesn't like that. Before, we were generating this:

  .zerofill __DATA, __common, __cmd, 1, 3

This fix puts us back to that semantic.

llvm-svn: 95336

.o files don't like that.

llvm-svn: 95187

llvm-svn: 95186