Make various changes suggested by Chris.

llvm-svn: 79358

llvm-svn: 79357

llvm-svn: 79356

Privatize the ValueHandle global map.  Because this is used so heavily throughout the code base, locking all accesses to
it is not practical performance-wise.

llvm-svn: 79355

llvm-svn: 79354

llvm-svn: 79353

of LDFLAGS.

llvm-svn: 79352

llvm-svn: 79351

llvm-svn: 79350

llvm-svn: 79348

llvm-svn: 79347

llvm-svn: 79346

llvm-svn: 79345

TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.

llvm-svn: 79344

llvm-svn: 79343

required on some platforms for building shared libraries that link to
the LLVM libraries.

llvm-svn: 79339

remove RemoveDuplicateSuccessor, as it is no longer necessary, and because
it breaks assumptions made in
MachineBasicBlock::isOnlyReachableByFallthrough.

Convert test/CodeGen/X86/omit-label.ll to FileCheck and add a testcase
for PR4732.

test/CodeGen/Thumb2/thumb2-ifcvt2.ll sees a diff with this commit due to
it being bugpoint-reduced to the point where it doesn't matter what the
condition for the branch is.

Add some more interesting code to
test/CodeGen/X86/2009-08-06-branchfolder-crash.ll, which is the testcase
that originally motivated the RemoveDuplicateSuccessor code, to help
verify that the original problem isn't being re-broken.

llvm-svn: 79338

unruly indices for arrays that are members of structs.

llvm-svn: 79337

Patch by Dmitry Gorbachev!

llvm-svn: 79334

llvm-svn: 79333

llvm-svn: 79325

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