Nice addition to the examples and also a starting point for Sanjiv to work on.

llvm-svn: 73013

to gcc.

llvm-svn: 73008

Update code generator to use this attribute and remove NoImplicitFloat target option.
Update llc to set this attribute when -no-implicit-float command line option is used.

llvm-svn: 72959

Update code generator to use this attribute and remove DisableRedZone target option.
Update llc to set this attribute when -disable-red-zone command line option is used.

llvm-svn: 72894

the CMake-generated Xcode project build properly.

llvm-svn: 72883

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

 - No functionality change, but please check if you don't believe me.

llvm-svn: 72789

llvm-svn: 72774

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: 72684

llvm-svn: 72600

used by CMake with --ldflags.

llvm-svn: 72470

can't just eliminate all global initializers.

llvm-svn: 72378

simplification. It's not clear to me whether this can replace the first of the
linear instruction simplification stages or not, so I left it in.

llvm-svn: 72377

can crash during instruction simplification (for example if it creates a
broken module).

llvm-svn: 72362

Sometimes when bugpointing a crash the bugpoint-reduced-simplified.bc reproduces
a totally different bug than the original one ("GV doesn't have initializer").
Although its useful to report that bug too, I need a way to reduce the original
bug, hence I introduced -disable-global-remove.

llvm-svn: 72361

the common Makefile.  Not sure why this suddenly
started causing problems.

llvm-svn: 71925

See PR4159 for details. Patch by Martin Nowack!

llvm-svn: 71054

llvm-svn: 70988

llvm-svn: 70934

llvm-svn: 70548

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: 70459

llvm-svn: 70449

llvm-svn: 70445

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

llvm-svn: 70440

llvm-svn: 70411

Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.

llvm-svn: 70343

llvm-svn: 70275

use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...

llvm-svn: 70270

only llvm-bcanalyzer wants this info.

llvm-svn: 70239

and % abbreviated.  For example:

	Record Histogram:
		  Count    # Bits   % Abv  Record Kind
		  25738   3424174  100.00  SM_SLOC_INSTANTIATION_ENTRY
		    814    562079  100.00  SM_SLOC_FILE_ENTRY
		    798     34110          SM_HEADER_FILE_INFO
		      3     91104  100.00  SM_SLOC_BUFFER_BLOB
		      3       498  100.00  SM_SLOC_BUFFER_ENTRY
		      1       465          SM_LINE_TABLE

llvm-svn: 70215

instead of ostreams for formatting.

llvm-svn: 70214

or when some other std::exception is thrown.

llvm-svn: 70175

BLOCKNAME and SETRECORDNAME.  This allows a bitcode
file to be self describing with pretty names for 
records and blocks in addition to numbers.  This
enhances llvm-bcanalyzer to use this to print prettily.

llvm-svn: 70165