doing global variable classification anymore) and hookized, sink almost
all target targets global variable emission code into AsmPrinter and out
of each target.

Some notes:

1. PIC16 does completely custom and crazy stuff, so it is not changed.
2. XCore has some custom handling for extra directives.  I'll look at it next.
3. This switches linux/ppc to use .globl instead of .global.  If .globl is
   actually wrong, let me know and I'll fix it.
4. This makes linux/ppc get a lot of random cases right which were obviously
   wrong before, it is probably now a bit healthier.
5. Blackfin will probably start getting .comm and other things that it didn't
   before.  If this is undesirable, it should explicitly opt out of these
   things by clearing the relevant fields of MCAsmInfo.

This leads to a nice diffstat:
 14 files changed, 127 insertions(+), 830 deletions(-)

llvm-svn: 93858

This makes a similar code dead in all the other targets, I'll clean it up
in a bit.

This also moves handling of lcomm up before acquisition of a section,
since lcomm never needs a section.

llvm-svn: 93851

darwin into common code.

llvm-svn: 93849

remove it and change all the code that prints MCSymbols to use 
<< instead, which is much simpler and cleaner.

llvm-svn: 93695

having to pass various fields from it in.  Simplify.

llvm-svn: 93686

llvm-svn: 93680

llvm-svn: 93664

llvm-svn: 93654

and add an explicit ForcePrivate argument.

Switch FunctionEHFrameInfo to be MCSymbol based instead of string based.

llvm-svn: 93646

dwarf emission which is going to be more invasive.

llvm-svn: 93645

llvm-svn: 93630

llvm-svn: 93614

llvm-svn: 93612

llvm-svn: 93609

replace it.  Upgrade Alpha, Blackfin, and part of CellSPU to not
use mangler anymore.  CellSPU needs more invasive surgery.

llvm-svn: 93589

llvm-svn: 93587

llvm-svn: 93577

helper method, use it to simplify some code.

llvm-svn: 93575

llvm-svn: 93463

different BlockAddress labels, but nothing semantically important.

Add a FIXME that BlockAddress codegen is broken if the LLVM BB has 
an empty name (e.g. strip was run).

llvm-svn: 93303

Among other things, this would do very weird things if the 
basic block name had (e.g.) a space in it on darwin:
makeNameProper would add quotes, then the mcsymbol would 
escape the quotes.

llvm-svn: 93302

instead of returning it in an std::string.  Based on this change:

1. Change TargetLoweringObjectFileCOFF::getCOFFSection to take a StringRef
2. Change a bunch of targets to call makeNameProper with a smallstring,
   making several of them *much* more efficient.
3. Rewrite Mangler::makeNameProper to not build names and then prepend
   prefixes, not use temporary std::strings, and to avoid other crimes.

llvm-svn: 93298

llvm-svn: 93293

llvm-svn: 93292

integers on 64-bit systems.

llvm-svn: 93291

llvm-svn: 93290

two labels as a truncate.

llvm-svn: 92455

llvm-svn: 92156

llvm-svn: 91764

isn't cluttered with things like "Llabel47:Llabel48:  movq  (%rsi), %xmm3"

llvm-svn: 90638

Don't print "SrcLine"; just print the filename and line number, which
is obvious enough and more informative.

llvm-svn: 90631

llvm-svn: 90621

Use new interfaces to print spill size.

llvm-svn: 90611

llvm-svn: 89793

and support for blockaddresses in x86-32 PIC mode.

llvm-svn: 89506

Support spill comments.

Have the asm printer emit a comment if an instruction is a spill or
reload and have the spiller mark copies it introdues so the asm printer
can also annotate those.

llvm-svn: 88911

llvm-svn: 88762

llvm-svn: 88761

llvm-svn: 88703

Move DebugInfo checks into EmitComments and remove them from
target-specific AsmPrinters.  Not all comments need DebugInfo.

Re-enable the line numbers comment test.

llvm-svn: 88697