Add a bone-simple utility to load a MachO object into memory, look for
a function (main) in it, and run that function directly. This will be used
as a test and development platform for MC-JIT work regarding symbol resolution,
dynamic lookup, etc..

Code by Daniel Dunbar.

llvm-svn: 127885

functions and initializers, just report the declarations present in
the module.

The motivation is to open the way for using the lazy module parsing,
which should speed up clients that just want a symbol list (nm, ar).

This is slightly less precise, but since both -strip-dead-prototypes
and -globaldce are part of the standard pipeline, this shouldn't
change the result for clang/dragonegg produced binaries.

Any decl in an IL file was also put there because a FE expected it
to be necessary, so this should not be a problem for "-O0 -emit-llvm".

As a sanity check, I have bootstrapped clang on linux and built
firefox on both linux and darwin. A clang bootstrap on darwin
with LTO fails with or without this patch because, ironically,
the linker doesn't like the combination of dead_strip and LTO
when building libLTO.so :-)

llvm-svn: 127870

llvm-svn: 127859

llvm-svn: 127858

instead of copying.

llvm-svn: 127835

llvm-svn: 127824

llvm-svn: 127814

llvm-svn: 127813

of an file.

llvm-svn: 127781

Make llvm::Consumer a class (to remove a MSVC warning since Consumer is later forward declared as a struct)

llvm-svn: 127632

This patch is a big refactoring of llvm-diff. It doesn't add new features, but it re-organizes the old features, so I can insert the MetadataEngine to use the same infrastructure.

llvm-svn: 127627

llvm-svn: 127562

llvm-svn: 127555

llvm-svn: 127553

llvm-svn: 127549

llvm-svn: 127545

llvm-svn: 127473

llvm-svn: 127471

llvm-svn: 127470

other systems pending.

PR9456.

llvm-svn: 127466

uses.

The result produced by the streamer is used to give the linker more accurate
information and to add to llvm.compiler.used. The second improvement removes
the need for the user to add __attribute__((used)) to functions only used in
inline asm. The first one lets us build firefox with LTO on Darwin :-)

llvm-svn: 126830

necessary anymore.

llvm-svn: 126580

llvm-svn: 126579

llvm-svn: 126546

6m30.

llvm-svn: 126426

llvm-svn: 126399

- Don't leak parsed operands during tokenization.
- Don't leak printed insts in llvm-mc.

llvm-svn: 126381

caused it to only parse one line of input.

llvm-svn: 126301

llvm-svn: 126224

operand.evaluate as an error code, not as the
contents of the operand.

llvm-svn: 126181

used by the linker and not by nm or ar.

llvm-svn: 126089

libxul links in 7m0.403s.

llvm-svn: 126085

parallel with the rest of the tools directory as it depends on Clang.

This patch was first applied in r125956 and subsequently reverted in
r125964 as it broke in-tree builds.  Makefile.rules was fixed up in 
r126070 to handle missing optional directories for the in-tree case,
so it should be safe now to bring this patch back in.
 

llvm-svn: 126071

of libxul from 12m31.084s to 7m1.359s.

llvm-svn: 126052

Patch by Kaelyn Uhrain!

llvm-svn: 126000

llvm-svn: 125978

with a triple.

llvm-svn: 125970

llvm-svn: 125968

llvm-svn: 125964

parallel with the rest of the tools directory as it depends on Clang.

llvm-svn: 125956