instead of as a stem+idx pair, simplify the "is a new 
location" check to use symbol comparison.

llvm-svn: 98432

llvm-svn: 98431

llvm-svn: 98430

llvm-svn: 98429

base register updating load/store-multiple instructions.

llvm-svn: 98427

llvm-svn: 98426

relative to the fragment address, not its offset. This was masked by the text
section normally being at address 0.

llvm-svn: 98420

compiler may not lead with the text section.

llvm-svn: 98418

llvm-svn: 98416

entries to not thrash std::strings and MCSymbols.

llvm-svn: 98415

targets.  This is a temporary hack for the .o file writer that Daniel
wants :)

llvm-svn: 98413

Tested: clang debug bootstrap, llvm-gcc bootstrap, `make check-lit`
after configuring with --with-llvmgccdir (and this did run the
FrontendC* tests this time)

llvm-svn: 98410

writebacks to the address register.  This gets rid of the hack that the
first register on the list was the magic writeback register operand.  There
was an implicit constraint that if that operand was not reg0 it had to match
the base register operand.  The post-RA scheduler's antidependency breaker
did not understand that constraint and sometimes changed one without the
other.  This also fixes Radar 7495976 and should help the verifier work
better for ARM code.

There are now new ld/st instructions explicit writeback operands and explicit
constraints that tie those registers together.

llvm-svn: 98409

llvm-svn: 98408

other functionality on 403.gcc compiled at -O0.

llvm-svn: 98405

llvm-svn: 98403

mostly the same.

llvm-svn: 98402

Use CodeMetrics.analyzeBasicBlock() to estimate BB size.

llvm-svn: 98401

llvm-svn: 98398

 - The implementation is currently very brain dead and inefficient, but I have a
   clear plan on how to fix it.

 - The good news is, it works and correctly assembles 403.gcc (when built with
   Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
   the resulting binary is exactly equivalent to that when built with the system
   assembler. So it probably works! :)

llvm-svn: 98396

llvm-svn: 98395

llvm-svn: 98394

llvm-svn: 98392

llvm-svn: 98391

remove it.

llvm-svn: 98390

some of its callers.

llvm-svn: 98388

it to be non-virtual and soon disappear.

llvm-svn: 98387

llvm-svn: 98386

llvm-svn: 98384

llvm-svn: 98381

llvm-svn: 98380

llvm-svn: 98379

llvm-svn: 98378

llvm-svn: 98377

llvm-svn: 98376

actually X86_StdCall or X86_FastCall.

llvm-svn: 98374

llvm-svn: 98373

llvm-svn: 98372

llvm-svn: 98370

llvm-svn: 98369