With this pass, StrongPHIElim can compile very simple testcases correctly.  There's still a ways
to go before it's ready for prime time, though.

llvm-svn: 48719

Transform (zext (or (icmp), (icmp))) to (or (zext (cimp), (zext icmp))) if at least one of the (zext icmp) can be transformed to eliminate an icmp.

llvm-svn: 48715

llvm-svn: 48714

llvm-svn: 48713

llvm-svn: 48712

llvm-svn: 48711

llvm-svn: 48710

llvm-svn: 48709

llvm-svn: 48708

llvm-svn: 48707

llvm-svn: 48706

llvm-svn: 48705

llvm-svn: 48704

llvm-svn: 48703

of compiler used.

llvm-svn: 48702

llvm-svn: 48701

llvm-svn: 48700

on ideas mentioned in PR686.
Written by Mikhail Glushenkov and contributed by Codedgers, Inc.

Old llvmc will be removed soon after new one will have all its properties.

llvm-svn: 48699

llvm-svn: 48697

llvm-svn: 48696

Force stack alignment to 16 bytes on win targets.

llvm-svn: 48695

llvm-svn: 48694

llvm-svn: 48693

llvm-svn: 48692

llvm-svn: 48691

llvm-svn: 48690

llvm-svn: 48688

llvm-svn: 48687

llvm-svn: 48686

llvm-svn: 48685

llvm-svn: 48684

llvm-svn: 48683

llvm-svn: 48682

llvm-svn: 48681

This fires dozens of times across spec and multisource, but I don't know
if it actually speeds stuff up.  Hopefully the testers will show something
nice :)

llvm-svn: 48680

llvm-svn: 48679

llvm-svn: 48677

llvm-svn: 48676

llvm-svn: 48673

merging optimization.  Nothing to see here, hopefully more later :)

llvm-svn: 48670