Fix some brittle code. Watch out for cases where register scavenger is pointing to deleted instructions.

llvm-svn: 34998

llvm-svn: 34997

llvm-svn: 34996

llvm-svn: 34994

llvm-svn: 34993

llvm-svn: 34992

llvm-svn: 34991

llvm-svn: 34990

implementation of getConstantValue().

llvm-svn: 34988

llvm-svn: 34987

llvm-svn: 34986

llvm-svn: 34985

llvm-svn: 34984

the lo-reg first.  This is fallout from my ppc calling conv change yesterday,
it fixes test/ExecutionEngine/2003-05-06-LivenessClobber.llx

llvm-svn: 34983

llvm-svn: 34982

llvm-svn: 34981

This ensures that require analysis info is available.

llvm-svn: 34980

llvm-svn: 34979

llvm-svn: 34978

LoopUnswitch pass.

llvm-svn: 34977

llvm-svn: 34976

llvm-svn: 34975

llvm-svn: 34974

is the right length.

llvm-svn: 34973

llvm-svn: 34972

llvm-svn: 34971

llvm-svn: 34970

llvm-svn: 34969

llvm-svn: 34968

llvm-svn: 34967

llvm-svn: 34966

llvm-svn: 34965

Register scavenger is now capable of scavenging. It spills a register whose use of furthest away to make it available.

llvm-svn: 34964

from formal attributes' flags processing.

llvm-svn: 34963

llvm-svn: 34962

llvm-svn: 34961

enumeration.

llvm-svn: 34960

llvm-svn: 34959

   to make a copy of the GenericValue.
2. Fix a copy & paste bug in StoreValueToMemory where 64-bit values were
   truncated to 32

llvm-svn: 34958

GenericValue to a temporary.

llvm-svn: 34957