llvm-svn: 107767

llvm-svn: 107657

llvm-svn: 107656

make it more aggressive in cases where both pointers are known to live
in the same function.

llvm-svn: 107420

entries associated with the value being erased in the
folding set map.  These entries used to be harmless, because
a SCEVUnknown doesn't store any information about its Value*,
so having a new Value allocated at the old Value's address
wasn't a problem. But now that ScalarEvolution is storing more
information about values, this is no longer safe.

llvm-svn: 107316

nsw and nuw flags from IR Instructions. On further consideration,
this isn't valid.

llvm-svn: 107298

llvm-svn: 107257

the old one instead of replacing it, to be more precise.

llvm-svn: 107256

on ScalarEvolution successfully folding and preserving
range information for both A-B and B-A. Now, if it gets
either one, it's sufficient.

llvm-svn: 107249

llvm-svn: 107248

where each loop's induction variable's start value is the exit
value of a preceding loop.

llvm-svn: 107224

llvm-svn: 107175

llvm-svn: 107128

llvm-svn: 107125

be called.

llvm-svn: 107124

instruction to an add scev, it's not safe to blindly transfer the
inbounds flag from a gep instruction to an nsw on the scev for the
gep.

llvm-svn: 107117

properly handles instructions and arguments defined in different
functions, or across recursive function iterations.

llvm-svn: 107109

code in unreachable blocks, which have have use-def cycles.
This fixes PR7514.

llvm-svn: 107071

interprocedurally. Note that as of this writing, existing alias
analysis passes are not prepared to be used interprocedurally.

llvm-svn: 107013

Use named MDNode, llvm.dbg.sp, to collect subprogram info. This will be used to emit  local variable's debug info of deleted functions.

llvm-svn: 106989

Do not forget last element, function, while creating Subprogram definition MDNode from subprogram declare MDNode.

llvm-svn: 106985

llvm-svn: 106872

was over-complicated.

llvm-svn: 106760

handling of pointer types.

llvm-svn: 106757

llvm-svn: 106697

llvm-svn: 106692

llvm-svn: 106686

llvm-svn: 106685

Replace ScalarEvolution's private copy of getLoopPredecessor
with LoopInfo's public copy.

llvm-svn: 106603

llvm-svn: 106542

constant operands.

llvm-svn: 106537

getNamedMetadata().

llvm-svn: 106518

llvm-svn: 106515

SmallVector, and other SmallVector simplifications.

llvm-svn: 106452

"llvm.dbg.lv.~A" is not a valid name.

llvm-svn: 106438

in refactoring.

llvm-svn: 106398

assuming that loops are in canonical form, as ScalarEvolution doesn't
depend on LoopSimplify itself. Also, with indirectbr not all loops can
be simplified. This fixes PR7416.

llvm-svn: 106389

a helper function.

llvm-svn: 106388

optimizations. There is still some nondeterminism remaining.

llvm-svn: 106306

llvm-svn: 106304