llvm-svn: 92364

improve some comments, simplify a bit of code.

llvm-svn: 92363

llvm-svn: 92362

warning: comparison between signed and unsigned integer expressions
llvm-svn: 92359

miscompilation, PR5458.

llvm-svn: 92354

llvm-svn: 92353

llvm-svn: 92352

llvm-svn: 92349

llvm-svn: 92347

llvm-svn: 92346

llvm-svn: 92344

llvm-svn: 92343

to SmallVector, and add a unit test.

llvm-svn: 92340

llvm-svn: 92338

by moving one method out of line and eliminating redundant checks
from other methods.

llvm-svn: 92337

llvm-svn: 92336

llvm-svn: 92335

one that remains.

llvm-svn: 92334

llvm-svn: 92333

llvm-svn: 92332

llvm-svn: 92331

llvm-svn: 92330

dumps one node instead of all of them.

llvm-svn: 92329

llvm-svn: 92328

llvm-svn: 92327

mdnode, not just operand 0 over and over.

llvm-svn: 92326

llvm-svn: 92325

llvm-svn: 92324

method that needs it (DbgValueInst::getValue) has been moved out
of line.

llvm-svn: 92323

things that occur in types.  "operands" are things that occur
in values.

llvm-svn: 92322

after the MDNode in memory.  This eliminates the operands
pointer and saves a new[] per node.

Note that the code in DIDerivedType::replaceAllUsesWith is wrong
and quite scary.  A MDNode should not be RAUW'd with something
else: this changes all uses of the mdnode, which may not be debug
info related!  Debug info should use something non-mdnode for
declarations.

llvm-svn: 92321

llvm-svn: 92320

so can be a huge performance issue when tearing down modules and mdnodes
are not guaranteed to be unique anyway.  This speeds up:
$ time ~/llvm/Release/bin/clang gcc.c -w -S -g

from 72 to 35s, where gcc.c is from:
http://people.csail.mit.edu/smcc/projects/single-file-programs/

llvm-svn: 92315

llvm-svn: 92311

llvm-svn: 92309

llvm-svn: 92304

llvm-svn: 92303

parser-global MDsOnInst vector and make ParseInstructionMetadata return
its result by-ref through an argument like the entire rest of the parser.

llvm-svn: 92302

handle the comma case for metadata.

llvm-svn: 92301

and make it non-optional.  This fixes the bug where we'd accept
and ignore a spurious comma after some instructions.

llvm-svn: 92300