outside of the current basic block. This fixes PR9500, rdar://9156159.

llvm-svn: 128041

Add support for Thumb interworking addresses for symbol offsets that get constant folded very early.
This fixes SPASS with -integrated-as.  <rdar://problem/9165399>

llvm-svn: 128037

llvm-svn: 128036

llvm-svn: 128035

Tested that MinGW/MSYS builds fine without that.

llvm-svn: 128033

Move the dynamic linking functionality of the llvm-rtdyld program into an
ExecutionEngine support library. Update llvm-rtdyld to just load an object
file into memory, use the library to process it, then run the _main()
function, if one is found.

llvm-svn: 128031

llvm-svn: 128030

llvm-svn: 128028

llvm-svn: 128027

llvm-svn: 128020

llvm-svn: 128017

Provide a means for CrashRecovery clients to determine if code is currently running while crash recovery cleanups are being processed.

llvm-svn: 128008

llvm-svn: 128007

llvm-svn: 128005

llvm-svn: 128004

llvm-svn: 128002

llvm-svn: 127997

code below it. Even though it looks very similar, it will match more precisely
and geneate better functions in the long run.

llvm-svn: 127991

This is a helper class that will make it easier to say which InstAliases can be
printed and which cannot (because of ambiguity).

llvm-svn: 127990

* Move the code that emits the reg in reg class matching into its own function.

llvm-svn: 127988

the alias of an InstAlias instead of the thing being aliased. Because we need to
know the features that are valid for an InstAlias.

This is part of a work-in-progress.

llvm-svn: 127986

As suggested by Nick Lewycky, ignore debugging intrinsics when trying to decide whether a destructor is empty or not.

llvm-svn: 127985

llvm-svn: 127984

llvm-svn: 127982

Re-apply r127953 with fixes: eliminate empty return block if it has no predecessors; update dominator tree if cfg is modified.

llvm-svn: 127981

llvm-svn: 127976

llvm-svn: 127975

llvm-svn: 127974

llvm-svn: 127973

gun as does. This makes it a lot easier to compare the output of both
as the addresses are now a lot closer.

llvm-svn: 127972

Add an optimization to GlobalOpt that eliminates calls to __cxa_atexit, if the function passed is empty.

llvm-svn: 127970

- glibc falls back to fork+exec if a file actions object is present.
- On BSDs this saves a malloc.

llvm-svn: 127969

If a class inherits from RefCountedBaseVPTR allow all its subclasses to be used with IntrusiveRefCntPtr.

llvm-svn: 127966

This can happen when multiple sibling registers are spilled after live range
splitting.

llvm-svn: 127965

llvm-svn: 127964

llvm-svn: 127962

llvm-svn: 127960

llvm-svn: 127959

Some of those POSIX <-> Windows command line conversions ended on
failure.

llvm-svn: 127958

llvm-svn: 127957