should have no state that is specific to particular globals in the
section.  In this case, it means the removal of the "isWeak" and
"ExplicitSection" bits.  MCSection uses the new form of SectionKind.

To handle isWeak, I introduced a new SectionInfo class, which is
SectionKind + isWeak, and it is used by the part of the code generator
that does classification of a specific global.

The ExplicitSection disappears.  It is moved onto MCSection as a new
"IsDirective" bit.  Since the Name of a section is either a section
or directive, it makes sense to keep this bit in MCSection.  Ultimately
the creator of MCSection should canonicalize (e.g.) .text to whatever
the actual section is.

llvm-svn: 77803

llvm-svn: 77754

need the PreferredEHDataFormat hook, but I have yet-more refactoring to
do before I can zap it.

llvm-svn: 77742

have no functionality change.

llvm-svn: 77741

Simplify operand padding by keying off tabs in the asm stream.  If
padding is disabled, tabs get replaced by spaces except in the case of
the first operand, where the tab is output to line up the operands after
the mnemonics.

Add some better comments and eliminate redundant code.

Fix some testcases to not assume tabs.

llvm-svn: 77740

thing is #if0'd out anyway.  Just simplify the code by reducing the interface.
Not deleting this is essential for Bill's continuing happiness.

llvm-svn: 77736

indicate that it is a predicate, not an emitter.  This eliminates TAI
dependencies on Mangler and GlobalValue.

llvm-svn: 77726

MCSection subclasses yet, but this is a step in the right direction.

llvm-svn: 77708

initialize method, which can be called when an MCContext is available.

llvm-svn: 77687

Start using DebugInfoFinder.

llvm-svn: 77621

llvm-svn: 77505

No functionality change.

llvm-svn: 77432

llvm-svn: 77412

  correct. But what are you going to do? I'll fix this in the future.
- Move another large loop into its own method.

llvm-svn: 77408

Does any one else hate the name "const_reverse_iterator" as much as I do?

llvm-svn: 77399

llvm-svn: 77394

llvm-svn: 77393

going to emit.

llvm-svn: 77382

llvm-svn: 77373

it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.

llvm-svn: 77294

MCSections soon instead of Section for all targets, and we need something to
own them.

llvm-svn: 77252

instead and drive things based off of that.

llvm-svn: 77184

llvm-svn: 77152

just use a smallstring instead.

llvm-svn: 77144

to its classification.

llvm-svn: 77140

llvm-svn: 77138

llvm-svn: 77137

llvm-svn: 77134

Also, change MDString to use a StringRef.

llvm-svn: 77098

llvm-svn: 76970

eliminating isNamed.

llvm-svn: 76946

Put comment printing under asm-verbose.

llvm-svn: 76780

a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705

and call PrintGlobalVariable, allowing elimination and simplification
of various targets.

llvm-svn: 76604

LLVM IR concept.

llvm-svn: 76590

"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...

llvm-svn: 76479

doesn't cause ".no_dead_strip" to be emitted on darwin.

llvm-svn: 76399

llvm-svn: 76246

llvm-svn: 76237

emit the EHFrame label next to the section_eh_frame and
eh_frame_common labels.

llvm-svn: 76234