string temporary. This should fix PR6590.

llvm-svn: 98349

LSDA into the TEXT section. We need to generate non-lazy pointers to it on
Mach-O. However, the object the NLP points to may be local to the translation
unit. If so, then the NLP needs to have the value of that object specified
instead of "0", which the linker interprets as "external".

llvm-svn: 98325

just make unnamed temp symbols instead of having to come
up with its own names.

llvm-svn: 98324

llvm-svn: 98300

where we used ot create an MCSymbol for ".".  Now emit an assembler
temporary label and reference it instead of "." textually.

rdar://7739457

llvm-svn: 98292

llvm-svn: 98289

instead of Pseudo, which helps Thumb decoder to recognize them as Thumb instr.

llvm-svn: 98285

llvm-svn: 98281

an MCExpr and not an MCSymbol.  Change it to take an MCStreamer,
which is currently unused.

No functionality change.

llvm-svn: 98278

Bad bad bug. x86 force indirect tail call address into eax when it's meant to force it into a call preserved register instead. Change it to ecx for now.

llvm-svn: 98270

llvm-svn: 98269

llvm-svn: 98258

llvm-svn: 98256

different codegen.

llvm-svn: 98244

MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.

llvm-svn: 98227

llvm-svn: 98221

llvm-svn: 98220

for the NLP because the object it's pointing to may be internal to the file.

This seems counter-intuitive, but bear with me. When we place the LSDA into the
TEXT section, the type info pointers need to be indirect and pc-rel. We
accomplish this by using NLPs. However, sometimes the types are local to the
file. GCC gets around this by not using a NLP in this case, but a "regular"
indirection like this:

GCC_except_tbl:
  .long Lfoo-.

__ZTIA:  @ This is local
  ...

Lfoo:
  .long __ZTIA

LLVM prefers NLPs on Darwin. In fact, it's more optimal for load performance to
use them.

llvm-svn: 98218

Plus fixed the encoding of t2LDRDpci such that P = 1 and W = 0 (offset mode).

llvm-svn: 98217

llvm-svn: 98215

convention.  Patch by David Terei!

llvm-svn: 98212

Radar 7686922.

llvm-svn: 98210

which doesn't support .quad correctly because it is
"really really old".  PR6528.

Yet another reason the mc assembler should take over ;-)

llvm-svn: 98205

Patch by Sean Callanan.

llvm-svn: 98200

indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.

llvm-svn: 98199

No functional effect yet.  This is still evolving and should
not be viewed as final.

llvm-svn: 98195

llvm-svn: 98194

400.perlbench for the nightly tests.

llvm-svn: 98183

llvm-svn: 98182

operands into their own PrintMethod, in order not to pollute the printOperand()
impl with disassembly only Imm modifiers.

llvm-svn: 98172

llvm-svn: 98169

expression add(add(mul(x,y),a),b) -> lmul(x,y,a,b) if all
operands are zero extended.

llvm-svn: 98168

llvm-svn: 98164

into a seperate function.

llvm-svn: 98162

llvm-svn: 98158

results are unused elsewhere.

llvm-svn: 98157

llvm-svn: 98153

llvm-svn: 98152

llvm-svn: 98151

directly to the maccu / maccs instructions. We handle this in
ExpandADDSUB since after type legalisation it is messy to
recognise these operations.

llvm-svn: 98150