llvm-svn: 93349

llvm-svn: 93342

llvm-svn: 93341

llvm-svn: 93339

Enumerate function-local metadata (and its types and operands) only during function-incorporation, global metadata continues to be enumerated during creation of ValueEnumerator

llvm-svn: 93338

llvm-svn: 93337

SelectSectionForGlobal, unbreaking weak globals with no-name.

llvm-svn: 93336

Commit some changes I had managed to lose last night while refactoring the code. Avoid change use of PHI instructions because it's not legal to insert any instructions before them.
This fixes PR6027.

llvm-svn: 93335

llvm-svn: 93334

llvm-svn: 93333

llvm-svn: 93332

twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.

llvm-svn: 93317

llvm-svn: 93313

llvm-svn: 93310

llvm-svn: 93309

on linux (even though they are pointless, they shouldn't ICE).

llvm-svn: 93308

llvm-svn: 93307

llvm-svn: 93306

llvm-svn: 93305

llvm-svn: 93304

different BlockAddress labels, but nothing semantically important.

Add a FIXME that BlockAddress codegen is broken if the LLVM BB has 
an empty name (e.g. strip was run).

llvm-svn: 93303

Among other things, this would do very weird things if the 
basic block name had (e.g.) a space in it on darwin:
makeNameProper would add quotes, then the mcsymbol would 
escape the quotes.

llvm-svn: 93302

and use them to avoid a copy of a string in getNameWithPrefix in
the common case.  It seems like Value::setName and other places 
should use this as well?

llvm-svn: 93301

that I want to completely eliminate.  Add fixme's so I remember this
in the future, and add the missing helper that they should be upgraded
to use instead.

llvm-svn: 93300

instead of returning it in an std::string.  Based on this change:

1. Change TargetLoweringObjectFileCOFF::getCOFFSection to take a StringRef
2. Change a bunch of targets to call makeNameProper with a smallstring,
   making several of them *much* more efficient.
3. Rewrite Mangler::makeNameProper to not build names and then prepend
   prefixes, not use temporary std::strings, and to avoid other crimes.

llvm-svn: 93298

llvm-svn: 93296

llvm-svn: 93295

llvm-svn: 93294

llvm-svn: 93293

llvm-svn: 93292

integers on 64-bit systems.

llvm-svn: 93291

llvm-svn: 93290

Revert 93270 pending investigation of how stray non-constant values end up in ValueEnumerator's ValueList during WriteConstants()

llvm-svn: 93289

llvm-svn: 93286

llvm-svn: 93285

llvm-svn: 93284

llvm-svn: 93283

It was only being used by instructions with the t_addrmode_sp addressing mode,
and that is pattern matched in a way that guarantees SP is used. There is
never any register allocation done from this class.

llvm-svn: 93280

flag doesn't exist there, and this is an x86 test.

llvm-svn: 93279

Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg.

For now, this pass is fairly conservative. It only perform the replacement when both the pre- and post- extension values are used in the block. It will miss cases where the post-extension values are live, but not used.

llvm-svn: 93278