2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311

Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.

llvm-svn: 31306

llvm-svn: 31304

llvm-svn: 31303

generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.

llvm-svn: 31299

llvm-svn: 31298

llvm-svn: 31294

llvm-svn: 31262

llvm-svn: 31252

llvm-svn: 31245

llvm-svn: 31244

llvm-svn: 31228

llvm-svn: 31220

llvm-svn: 31203

to match MOVL (movss, movsd, etc.). Don't forget to commute it back and try
unpck* and shufp* if that doesn't pan out.

llvm-svn: 31186

llvm-svn: 31185

llvm-svn: 31183

llvm-svn: 31171

llvm-svn: 31122

This will allow (after llvm-gcc linkage fix) more dummy tests using
libstdc++ to pass on mingw :)

llvm-svn: 31120

llvm-svn: 31099

llvm-svn: 31097

llvm-svn: 31095

llvm-svn: 31093

llvm-svn: 31074

llvm-svn: 31065

This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063

llvm-svn: 31039

llvm-svn: 31038

Added workaround for linker bug with linkonce sections.
Changed sections prefix to allow linker merge them
(PE loader doesn't like too much long-named sections :) )
All of this unbreaks libstdc++ on mingw32 allowing (small)
programs to be compiled, linked and run.

llvm-svn: 31033

llvm-svn: 31024

targets.

llvm-svn: 31011

llvm-svn: 30993

llvm-svn: 30992

llvm-svn: 30990

llvm-svn: 30986

llvm-svn: 30985

llvm-svn: 30974

llvm-svn: 30973

llvm-svn: 30964