assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596

llvm-svn: 94593

llvm-svn: 94587

Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.

llvm-svn: 94585

that has it.

llvm-svn: 94581

subsumed by TargetLowering::getJumpTableEncoding().  Change uses of
it to be more specific.

llvm-svn: 94529

inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.

llvm-svn: 94528

which is more convenient, and change getPICJumpTableRelocBaseExpr
to take a MachineFunction to match.

Next, move the X86 code that create a PICBase symbol to
X86TargetLowering::getPICBaseSymbol from 
X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific 
library.  This eliminates a 'gross hack', and allows us to
implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now
calls it.

This in turn allows us to eliminate the 
X86AsmPrinter::printPICJumpTableSetLabel method, which was the
only overload of printPICJumpTableSetLabel.

llvm-svn: 94526

use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr

llvm-svn: 94523

EK_LabelDifference32 kind and the target has .set support.  Simplify
X86AsmPrinter::printPICJumpTableSetLabel to make use of recent helpers.

llvm-svn: 94518

make it private and non-virtual.  It handles the non-pic
case too, so just use it, simplifying EmitJumpTableInfo.

llvm-svn: 94517

the AsmPrinter::GetMBBSymbol.

llvm-svn: 94515

MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.

llvm-svn: 94509

jump table entries.

llvm-svn: 94505

instead of magic variables.

llvm-svn: 94500

1. MachineJumpTableInfo is now created lazily for a function the first time
   it actually makes a jump table instead of for every function.
2. The encoding of jump table entries is now described by the
   MachineJumpTableInfo::JTEntryKind enum.  This enum is determined by the
   TLI::getJumpTableEncoding() hook, instead of by lots of code scattered
   throughout the compiler that "knows" that jump table entries are always
   32-bits in pic mode (for example).
3. The size and alignment of jump table entries is now calculated based on
   their kind, instead of at machinefunction creation time.

Future work includes using the EntryKind in more places in the compiler,
eliminating other logic that "knows" the layout of jump tables in various
situations.

llvm-svn: 94470

llvm-svn: 94464

llvm-svn: 94452

llvm-svn: 94450

llvm-svn: 94449

make it clear what it is, instead of how it is used.

llvm-svn: 94448

and MCize the non-pic case.  Now printPICJumpTableEntry really
is just about printing PIC entries.

llvm-svn: 94446

llvm-svn: 94445

rename it to avoid shadowing.

llvm-svn: 94440

normal form of .file would fail if the filename had a weird character
in it.

llvm-svn: 94437

llvm-svn: 94436

llvm-svn: 94417

mcstreamer.

llvm-svn: 94416

llvm-svn: 94378

llvm-svn: 94370

This fixes FrontendObjC/2009-11-30-Objc-ID.m

llvm-svn: 94369

llvm-svn: 94299

a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

llvm-svn: 94298

llvm-svn: 94295

into a new MCDirectives.h file.

llvm-svn: 94294

to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.

llvm-svn: 94293

llvm-svn: 94290

and some .weak directives.

llvm-svn: 94284

llvm-svn: 94282

be careful to add a \0 at the end though, because EmitString didn't
do this.

llvm-svn: 94277