llvm-svn: 60683

llvm-svn: 60682

to allow the "safe" backend to be run with a different path, and/or
with different command-line options.

This enables the following use cases:
 - bugpoint llc against an llc command from a different build
 - bugpoint llc against the same llc with different command-line options
 - and more...

Also, document the existing "custom" interpreter options.

llvm-svn: 60681

code were working correctly, it would be a no-op, but it's not really a 
proper fix.  That said, I don't really want to touch the enum code at 
the moment because I don't understand it very well, and this seems to 
be a relatively visible regression.

llvm-svn: 60680

llvm-svn: 60679

llvm-svn: 60678

in a really obscure way, but more importantly has the side effect
of avoiding a GCC warning in the case that IntType is bool.

llvm-svn: 60677

llvm-svn: 60676

useful.

llvm-svn: 60674

llvm-svn: 60673

llvm-svn: 60672

llvm-svn: 60671

llvm-svn: 60670

llvm-svn: 60669

llvm-svn: 60668

Makes (forward) work better.

llvm-svn: 60667

llvm-svn: 60666

llvm-svn: 60665

llvm-svn: 60664

Use B instead of Beg (for consistency), but NodeA and NodeB instead of A
and B.

llvm-svn: 60663

llvm-svn: 60662

This will eventually replace `ccc`. The command `llvmc -clang` now uses
the Clang toolchain instead of `llvm-gcc`.

llvm-svn: 60661

llvm-svn: 60660

This would be much easier to do if the CommandLine library didn't use
global state. Global state is evil.

llvm-svn: 60659

llvm-svn: 60658

llvm-svn: 60657

Also includes a major refactoring. See documentation for more
information.

llvm-svn: 60656

llvm-svn: 60655

so it "can't" break anything.  That said, it does appear to work.

llvm-svn: 60654

nodes. FoldSingleEntryPHINodes deletes the PHI, so there is no
need to delete it afterward.

llvm-svn: 60653

live interval updating.

llvm-svn: 60652

llvm-svn: 60651

llvm-svn: 60650

method.  This will eventually take over load/store dep
queries from getNonLocalDependency.  For now it works
fine, but is incredibly slow because it does no caching.
Lets not switch GVN to use it until that is fixed :)

llvm-svn: 60649

duplication of logic (in 2 places) to determine what pointer a 
load/store touches.  This will be addressed in a future commit.

llvm-svn: 60648

instead of making getDependencyFrom do it.

llvm-svn: 60647

llvm-svn: 60646

llvm-svn: 60645

llvm-svn: 60644

llvm-svn: 60643