pipeline model.

llvm-svn: 60733

for spotting these!

llvm-svn: 60728

jump threading has been shown to only expose problems not
have bugs itself.  I'm sure it's completely bug free! ;-)

llvm-svn: 60725

llvm-svn: 60711

llvm-svn: 60707

llvm-svn: 60705

Thanks Duncan!

llvm-svn: 60702

llvm-svn: 60701

llvm-svn: 60697

and use it in x86 address mode folding. Also, make
getRegForValue return 0 for illegal types even if it has a
ValueMap for them, because Argument values are put in the
ValueMap. This fixes PR3181.

llvm-svn: 60696

track of whether the CachedNonLocalPointerInfo for a block is specific
to a block.  If so, just return it without any pred scanning.  This is
good for a 6% speedup on GVN (when it uses this lookup method, which
it doesn't right now).

llvm-svn: 60695

llvm-svn: 60694

remove some more 64-bit divs and rems from the StructLayout 
ctor.

llvm-svn: 60692

as suggested in PR3182.

llvm-svn: 60691

llvm-svn: 60690

llvm-svn: 60689

llvm-svn: 60687

llvm-svn: 60684

llvm-svn: 60683

llvm-svn: 60679

useful.

llvm-svn: 60674

llvm-svn: 60673

llvm-svn: 60672

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: 60644

llvm-svn: 60643

emphasize the scanning and make it more similar to 
getDependencyFrom
 

llvm-svn: 60642

clobber with the current implementation.  Instead of returning
a "precise clobber" just return a fuzzy one.  This doesn't 
matter to any clients anyway and should speed up analysis time
very very slightly.

llvm-svn: 60641

everything interesting anyway.

llvm-svn: 60640

original impl was correct and noone actually makes the query anyway.

llvm-svn: 60639

llvm-svn: 60636

llvm-svn: 60633

llvm-svn: 60632