connected components. These components should be allocated different virtual
registers because there is no reason for them to be allocated together.

Add the ConnectedVNInfoEqClasses class to calculate the connected components,
and move values to new LiveIntervals.

Use it from SplitKit::rewrite by creating new virtual registers for the
components.

llvm-svn: 116006

This doesn't usually matter, because the other heuristics usually
succeed regardless, but it's good to keep the register use
bookkeeping consistent.

llvm-svn: 116005

llvm-svn: 116004

llvm-svn: 116003

llvm-svn: 116002

with the right types.

llvm-svn: 116001

llvm-svn: 115999

http://gcc.gnu.org/ml/gcc-patches/2010-09/msg01070.html

llvm-svn: 115998

llvm-svn: 115997

llvm-svn: 115996

update the affected API clients.

llvm-svn: 115995

llvm-svn: 115994

llvm-svn: 115993

Make sure to lock down the sequence mutex and select the thread we want when read or write all registers.

llvm-svn: 115992

llvm-svn: 115991

This is tested by callfuncs.exp in gdb testsuite.

llvm-svn: 115989

llvm-svn: 115988

llvm-svn: 115987

llvm-svn: 115986

Fix an infinite loop, caused by unintended syntax bug (the 'break;' after 'default:' was intended to break out of the while loop).
Fixes rdar://8518859&8520617.

llvm-svn: 115985

llvm-svn: 115984

the threads and print their stack traces when stopped on a breakpoint.

Add a PrintStackTraces(process) utility function into the lldbutil.py module.

llvm-svn: 115983

use.  Since TEST is completely different than all other binops,
don't define a multipattern for it.

This completes factorization of binops.

llvm-svn: 115982

to match gcc's encoding. Fixes //rdar: // 8519948.

llvm-svn: 115980

llvm-svn: 115979

llvm-svn: 115978

Canonicalize X86ISD::MOVDDUP nodes to v2f64 to make sure all cases match. Also eliminate unneeded isel patterns. rdar://8520311

llvm-svn: 115977

llvm-svn: 115976

for them from the MCCodeEmitter.

llvm-svn: 115975

llvm-svn: 115974

llvm-svn: 115973

llvm-svn: 115972

llvm-svn: 115971

llvm-svn: 115970

llvm-svn: 115969

llvm-svn: 115968

llvm-svn: 115967

llvm-svn: 115966

llvm-svn: 115965

are not defined as returning EFLAGS (like add_flag and friends),
the entire multipattern and several of the subclasses need to be
cloned.

This could be handled through better instantiation support in tblgen,
but it isn't meta enough.

llvm-svn: 115964