MCAsmStreamer.  Based on this, eliminate the current section from AsmPrinter.

While I'm at it, clean up the last of the horrible "switch to null section" stuff
and add an assert.  This change is in preparation for completely eliminating 
asmprinter::switchtosection.

llvm-svn: 79324

an EHFrame section, so we just emit ehframe data into a random section.

This is clearly bad.

llvm-svn: 79323

the problem.

llvm-svn: 79322

llvm-svn: 79321

llvm-svn: 79318

send instructions like:

NEW: 	movl	"L___stack_chk_guard$non_lazy_ptr" - "L1$pb"(%esi), %eax
OLD: 	movl	L___stack_chk_guard$non_lazy_ptr-"L1$pb"(%esi), %eax

through the streamer.  Several fixmes.

llvm-svn: 79317

 - Patch by Yonggang Luo.

llvm-svn: 79315

 - Patch by Yonggang Luo.

llvm-svn: 79314

llvm-svn: 79313

llvm-svn: 79312

be able to understand ;-)

llvm-svn: 79311

llvm-svn: 79310

 - This is cleaner, and makes bugpoint match the host instead of the build
   architecture.

 - Patch by Sandeep Patel!

llvm-svn: 79309

defined ones from the user defined ones. Propagate accordingly.

llvm-svn: 79308

LLVMInitializeNativeTarget to initialize target info.
 - Patch by Jose Fonseca.

llvm-svn: 79307

llvm-svn: 79306

llvm-svn: 79299

llvm-svn: 79298

llvm-svn: 79297

try to use i686-darwin to build for arm-eabi, you'll quickly run into
several false assumptions that the target OS must be the same as the
host OS. These patches split $(OS) into $(HOST_OS) and $(TARGET_OS) to
help builds like "make check" and the test-suite able to cross
compile. Along the way a target of *-unknown-eabi is defined as
"Freestanding" so that TARGET_OS checks have something to work with.

Patch by Sandeep Patel!

llvm-svn: 79296

llvm-svn: 79295

returns a log2 value.

llvm-svn: 79293

for a single "m" constraint; this is wrong because the
opcode of a load or store would have to change in parallel.
This patch makes it always compute addresses into a register,
which is correct but not as efficient as possible.  7144566.

llvm-svn: 79292

llvm-svn: 79289

llvm-svn: 79287

llvm-svn: 79285

llvm-svn: 79274

llvm-svn: 79272

llvm-svn: 79264

llvm-svn: 79263

llvm-svn: 79262

llvm-svn: 79258

llvm-svn: 79257

llvm-svn: 79256

llvm-svn: 79255

llvm-svn: 79254

Clear the uniquing table when initializing TLOF to avoid a crash when the TLOF is reinitialized with a different MCContext.

llvm-svn: 79253

llvm-svn: 79252

more properly belong. This allows removing the front-end conditionalized
SJLJ code, and cleans up the generated IR considerably. All of the
infrastructure code (calling _Unwind_SjLj_Register/Unregister, etc) is
added by the SjLjEHPrepare pass.

llvm-svn: 79250

if not supported by the ELF subtarget.

llvm-svn: 79249