by default.

This is a behaviour configurable in the MCAsmInfo. I've decided to turn
it on by default in (possibly optimistic) hopes that most assemblers are
reasonably sane. If this proves a problem, switching to default seems
reasonable.

I'm not sure if this is the opportune place to test, but it seemed good
to make sure it was tested somewhere.

llvm-svn: 154235

llvm-svn: 135375

llvm-svn: 125363

It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility.  The symbols are removed by the linker from the final linked image
(executable or dynamic library).

llvm-svn: 111684

Objective-C metadata types which should be marked as "weak", but which the
linker will remove upon final linkage. However, this linkage isn't specific to
Objective-C.

For example, the "objc_msgSend_fixup_alloc" symbol is defined like this:

      .globl l_objc_msgSend_fixup_alloc
      .weak_definition l_objc_msgSend_fixup_alloc
      .section __DATA, __objc_msgrefs, coalesced
      .align 3
l_objc_msgSend_fixup_alloc:
       .quad   _objc_msgSend_fixup
       .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

Currently only supported on Darwin platforms.

llvm-svn: 107433

llvm-svn: 107215

metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

       .globl l_objc_msgSend_fixup_alloc
       .weak_definition l_objc_msgSend_fixup_alloc
       .section __DATA, __objc_msgrefs, coalesced
       .align 3
l_objc_msgSend_fixup_alloc:
        .quad   _objc_msgSend_fixup
        .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

llvm-svn: 107205

llvm-svn: 102594

create symbols.  It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.

llvm-svn: 99902

llvm-svn: 98384

for a global instead of messing around with string buffers.

llvm-svn: 98366

No functionality change.

llvm-svn: 98363

stop the CBE from using Mangler::appendMangledName, which is a private function, it is mangling types, which don't matter how they are done.

llvm-svn: 93692

to Mangler.  Now MCSymbol just decides whether to slap quotes around
a symbol when printing it.

This also fixes some weirdness where two MCSymbols could be created
for the same symbol, if one needed to be mangled and got mangled to
the other one.

llvm-svn: 93690

takes a twine.

llvm-svn: 93687

having to pass various fields from it in.  Simplify.

llvm-svn: 93686

llvm-svn: 93664

llvm-svn: 93656

Mangler::getMangledName is used from lto
Mangler::setUseQuotes is used in the AsmPrinter
Mangler::setSymbolsCanStartWithDigit is used in the AsmPrinter

llvm-svn: 93652

Mangler::getMangledName is now dead, remove it and all the other stuff in Mangler that is now transitively dead.  woo.

llvm-svn: 93648

llvm-svn: 93641

twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.

llvm-svn: 93317

llvm-svn: 93304

and use them to avoid a copy of a string in getNameWithPrefix in
the common case.  It seems like Value::setName and other places 
should use this as well?

llvm-svn: 93301

that I want to completely eliminate.  Add fixme's so I remember this
in the future, and add the missing helper that they should be upgraded
to use instead.

llvm-svn: 93300

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: 93296

llvm-svn: 93295

llvm-svn: 82454

variables to specified absolute address. Make use of this feature for MSP430.
This unbreaks PR4776.

llvm-svn: 82227

for systems that don't support quoting (PR4966).

llvm-svn: 81682

llvm-svn: 81506

(uniqued if unnamed) global variable name with the prefix that
it is supposed to get.  It doesn't do "mangling" in the sense of
adding quotes and hacking on bad characters.

llvm-svn: 81505

llvm-svn: 79289

simplification.
 - NFC

llvm-svn: 76789

llvm-svn: 76456

"private" symbols which the assember shouldn't strip, but which the linker may
remove after evaluation. This is mostly useful for Objective-C metadata.

This is plumbing, so we don't have a use of it yet. More to come, etc.

llvm-svn: 76385

can do it perfectly well itself.

llvm-svn: 75743

additional bug fixes:

1. The bug that everyone hit was a problem in the asmprinter where it
   would remove $stub but keep the L prefix on a name when emitting the
   indirect symbol.  This is easy to fix by keeping the name of the stub
   and the name of the symbol in a StringMap instead of just keeping a
   StringSet and trying to reconstruct it late.

2. There was a problem printing the personality function.  The current
   logic to print out the personality function from the DWARF information
   is a bit of a cesspool right now that duplicates a bunch of other 
   logic in the asm printer.  The short version of it is that it depends
   on emitting both the L and _ prefix for symbols (at least on darwin)
   and until I can untangle it, it is best to switch the mangler back to
   emitting both prefixes.

llvm-svn: 75646

unbreaking llvm-gcc (on Darwin).

--- Reverse-merging r75620 into '.':
U    include/llvm/Support/Mangler.h
--- Reverse-merging r75610 into '.':
U    test/CodeGen/X86/loop-hoist.ll
G    include/llvm/Support/Mangler.h
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
U    lib/VMCore/Mangler.cpp

llvm-svn: 75636