dependence on DominanceFrontier. Instead, add an explicit DominanceFrontier
pass in StandardPasses.h to ensure that it gets scheduled at the right
time.

Declare that loop unrolling preserves ScalarEvolution, and shuffle some
getAnalysisUsages.

This eliminates one LoopSimplify and one LCCSA run in the standard
compile opts sequence.

llvm-svn: 109413

llvm-svn: 109412

build of llvm-gcc.

llvm-svn: 109355

it needs to be mapped to refer to the function in the new module, not the old
one. Fixes PR7700.

llvm-svn: 109353

llvm-svn: 109132

llvm-svn: 109122

A non function local MDNode can have an operand which is cloned by MapValue(). 

llvm-svn: 109117

llvm-svn: 109103

llvm-svn: 109098

llvm-svn: 109092

for creating and populating NamedMDNodes.

llvm-svn: 109061

llvm-svn: 109045

llvm-svn: 108967

llvm-svn: 108961

a redundant loopsimplify run from the default -O2 sequence.

llvm-svn: 108539

llvm-svn: 108522

llvm-svn: 108427

it *changing* the things it replaces, not just causing them
to drop to null.  There is no functionality change yet, but 
this is required for a subsequent patch.

llvm-svn: 108414

"bonus" instruction to be speculatively executed.  Add a heuristic to
ensure we're not tripping up out-of-order execution by checking that this bonus
instruction only uses values that were already guaranteed to be available.

This allows us to eliminate the short circuit in (x&1)&&(x&2).

llvm-svn: 108351

llvm-svn: 108133

llvm-svn: 108132

llvm-svn: 107984

llvm-svn: 107983

llvm-svn: 107981

llvm-svn: 107975

llvm-svn: 107974

llvm-svn: 107968

llvm-svn: 107966

llvm-svn: 107965

llvm-svn: 107516

llvm-svn: 107335

llvm-svn: 107269

llvm-svn: 107003

llvm-svn: 107002

for an "i" constraint should get lowered; PR 6309.  While
this argument was passed around a lot, this is the only
place it was used, so it goes away from a lot of other
places.

llvm-svn: 106893

llvm-svn: 106825

llvm-svn: 106824

llvm-svn: 106728

The ValueMapper used by various cloning utility maps MDNodes also.

llvm-svn: 106706

llvm-svn: 106699