llvm-svn: 72881

Add lto_codegen_set_assembler_path() API which allows the linker to specify the
path to the assembler tool to run.  When assembler is used (instead of compiler)
different command line options are used.
Add LTO_API_VERSION #define so clients (linkers) can conditionalize use of new APIs.

llvm-svn: 72823

Move setRelocationModel() to be called before TargetMachine is instantiated.

llvm-svn: 72816

 - This matches llvm-ld.

It took a bit of archeology to figure out what the right thing to do was
(whether this was intentionally added or intentionally removed). My final
conclusion is that Chris added this intentionally here:
  http://llvm.org/viewvc/llvm-project?view=rev&revision=16913
but the changes weren't propogated to llvm-ld until here:
  http://llvm.org/viewvc/llvm-project?view=rev&revision=34058
which was after lto.cpp had been cloned off (of llvm-ld), here:
  http://llvm.org/viewvc/llvm-project?view=rev&revision=29494

From the commit message, it looks like the motivation for running global opt
again is because we ran it prior to inlining. Based on that I updated the
comment and also only run the pass if we actually ran the inliner.

Chris, please review.

llvm-svn: 72811

 - I know it sounds crazy, but I think all the pass lists are now coalesced into
   StandardPasses.h.

llvm-svn: 72805

llvm-svn: 72708

Parse __OBJC data structures and synthesize magic .objc_ symbols.
Also, alter mangler so that objc method names are readable.

llvm-svn: 72700

llvm-svn: 72600

run when assembling.

Wire this up to the gold plugin. You can now pass --plugin-opt gcc=/foo/bar/gcc
and it will run that gcc instead of looking for it on the path.

llvm-svn: 70490

llvm-svn: 70445

which better identifies what the optimization is doing. And is more flexible for
future uses.

llvm-svn: 70440

llvm-svn: 70411

llvm-svn: 69972

llvm-svn: 68229

with the rest of the parallel directories.

Build lto when possible on all platforms. Make gold to explicitly depend on
libLTO.

llvm-svn: 65518

llvm-svn: 65508

off in libLTO.

llvm-svn: 65310

llvm-svn: 64835

The debugger sometimes lookup dynamically in the runtime to find ivar info of any Objective-C classes. It would be very helpful to debugger if the compiler encodes runtime version number in DWARF.

Add support for two additional DWARF attributes to encode Objective-C runtime version number.

llvm-svn: 64834

without --enable-pic, like my nightly tester.

llvm-svn: 64302

llvm-svn: 64299

Revert 62987 for now. Nicolas please investigate.

llvm-svn: 64285

llvm-svn: 63927

llvm-svn: 62987

llvm-svn: 61599

already declared in the other headers.

llvm-svn: 60261

llvm-svn: 60257

Document raw_fd_ostream's treatment of "-".

llvm-svn: 59219

llvm-svn: 58731

llvm-svn: 55120

llvm-svn: 55092

Remove GCSE, ValueNumbering, and LoadValueNumbering.  These have been deprecated for almost a year; it's finally time for them to go away.

llvm-svn: 54822

llvm-svn: 53780

llvm-svn: 53778

llvm-svn: 53697

llvm-svn: 53693

LinkOnce definitions have default scope, like weak definitions. Otherwise, the linker may not be able to match LinkOnce definition from one module with an exteranl reference from other module.

llvm-svn: 53580

llvm-svn: 53249

llvm-svn: 53213

llvm-svn: 53119