[SCEV] Introduce SCEVPtrToIntExpr (PR46786)

[lebedev.ri]

Summary

And use it to model LLVM IR's ptrtoint cast.

This is essentially an alternative to D88806, but with no chance for
all the problems it caused due to having the cast as implicit there.
(see rG7ee6c402474a2f5fd21c403e7529f97f6362fdb3)

As we've established by now, there are at least two reasons why we want this:

• It will allow SCEV to actually model the ptrtoint casts and their operands, instead of treating them as SCEVUnknown
• It should help with initial problem of PR46786 - this should eventually allow us to not loose pointer-ness of an expression in more cases

As discussed in PR46786, in principle,
we could just extend SCEVUnknown with a is ptrtoint cast, because ScalarEvolution::getPtrToIntExpr()
should sink the cast as far down into the expression as possible,
so in the end we should always end up with SCEVPtrToIntExpr of SCEVUnknown.

But i think that it isn't the best solution, because it doesn't really matter
from memory consumption side - there probably won't be *that* many SCEVPtrToIntExprs
for it to matter, and it allows for much better discoverability.

This probably needs some more tests.
I'm not adding any rewrites right in this patch.

[efriedma]

llvm/lib/Analysis/ScalarEvolution.cpp

3586–3589

Is this change necessary?

5540

zextOrTrunc shouldn't be necessary.

6145

I think it would be a useful invariant if SCEVConstant was never a pointer. We currently have a weird hack in SCEVExpander to deal with expanding pointer expressions that don't actually have any pointer operands.

I think we could just use getUnknown(V) here, though. I can't think of any reason to have a special SCEV expression for null pointers.

polly/test/Isl/CodeGen/ptrtoint_as_parameter.ll

3

I think it's just checking it doesn't crash.

More generally, I would guess your patch is interfering with polly's code to look through ptrtoint instructions. If you want, I can fix up the polly stuff after this patch is finished.

[lebedev.ri]

@efriedma thank you for taking a look!

llvm/lib/Analysis/ScalarEvolution.cpp

3586–3589

Yes, otherwise we end up in an endless recursion with createSCEV().

5540

Agree, but unfortunately it is, because ScalarEvolution::getEffectiveSCEVType() is broken.

// The only other support type is pointer.
assert(Ty->isPointerTy() && "Unexpected non-pointer non-integer type!");
return getDataLayout().getIndexType(Ty);

Index type can be, but is not always, the same type as the pointer-sized integer type.
There's existing test that crashes with assertion without that zextOrTrunc.

6145

Let's see..

[lebedev.ri]

llvm/lib/Analysis/ScalarEvolution.cpp

3586–3589

********************
FAIL: LLVM :: Analysis/ScalarEvolution/scalable-vector.ll (851 of 943)
******************** TEST 'LLVM :: Analysis/ScalarEvolution/scalable-vector.ll' FAILED ********************
Script:
--
: 'RUN: at line 1';   /builddirs/llvm-project/build-Clang11-unknown/bin/opt -scalar-evolution -analyze -enable-new-pm=0 < /repositories/llvm-project/llvm/test/Analysis/ScalarEvolution/scalable-vector.ll | /builddirs/llvm-project/build-Clang11-unknown/bin/FileCheck /repositories/llvm-project/llvm/test/Analysis/ScalarEvolution/scalable-vector.ll
: 'RUN: at line 2';   /builddirs/llvm-project/build-Clang11-unknown/bin/opt "-passes=print<scalar-evolution>" -disable-output < /repositories/llvm-project/llvm/test/Analysis/ScalarEvolution/scalable-vector.ll 2>&1 | /builddirs/llvm-project/build-Clang11-unknown/bin/FileCheck /repositories/llvm-project/llvm/test/Analysis/ScalarEvolution/scalable-vector.ll
--
Exit Code: 1

Command Output (stderr):
--
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0.      Program arguments: /builddirs/llvm-project/build-Clang11-unknown/bin/opt -scalar-evolution -analyze -enable-new-pm=0 
1.      Running pass 'Function Pass Manager' on module '<stdin>'.
2.      Running pass 'FunctionPass Printer: Scalar Evolution Analysis' on function '@a'
  #0 0x00007fea72fbf6b3 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /repositories/llvm-project/llvm/lib/Support/Unix/Signals.inc:563:13
  #1 0x00007fea72fbd5d2 llvm::sys::RunSignalHandlers() /repositories/llvm-project/llvm/lib/Support/Signals.cpp:72:18
  #2 0x00007fea72fbfbb5 SignalHandler(int) /repositories/llvm-project/llvm/lib/Support/Unix/Signals.inc:0:3
  #3 0x00007fea75dfc140 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14140)
  #4 0x00007fea73adfc2a llvm::ScalarEvolution::getSCEV(llvm::Value*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:3747:19
  #5 0x00007fea73aeb3c1 llvm::ScalarEvolution::createNodeForGEP(llvm::GEPOperator*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:0:0
  #6 0x00007fea73ae42a9 llvm::ScalarEvolution::createSCEV(llvm::Value*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:0:12
  #7 0x00007fea73adfc48 llvm::ScalarEvolution::getSCEV(llvm::Value*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:3749:7
  #8 0x00007fea73ae449c llvm::isa_impl_cl<llvm::SCEVConstant, llvm::SCEV const*>::doit(llvm::SCEV const*) /repositories/llvm-project/llvm/include/llvm/Support/Casting.h:104:5
  #9 0x00007fea73ae449c llvm::isa_impl_wrap<llvm::SCEVConstant, llvm::SCEV const*, llvm::SCEV const*>::doit(llvm::SCEV const* const&) /repositories/llvm-project/llvm/include/llvm/Support/Casting.h:131:12
 #10 0x00007fea73ae449c llvm::isa_impl_wrap<llvm::SCEVConstant, llvm::SCEV const* const, llvm::SCEV const*>::doit(llvm::SCEV const* const&) /repositories/llvm-project/llvm/include/llvm/Support/Casting.h:121:12
 #11 0x00007fea73ae449c bool llvm::isa<llvm::SCEVConstant, llvm::SCEV const*>(llvm::SCEV const* const&) /repositories/llvm-project/llvm/include/llvm/Support/Casting.h:142:10
 #12 0x00007fea73ae449c llvm::ScalarEvolution::createSCEV(llvm::Value*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:6373:9
 #13 0x00007fea73adfc48 llvm::ScalarEvolution::getSCEV(llvm::Value*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:3749:7
 #14 0x00007fea73ae01b3 llvm::ScalarEvolution::getSizeOfExpr(llvm::Type*, llvm::Type*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:3568:1
 #15 0x00007fea73adf970 llvm::ScalarEvolution::getGEPExpr(llvm::GEPOperator*, llvm::SmallVectorImpl<llvm::SCEV const*> const&) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:3361:19
 #16 0x00007fea73aeb426 llvm::SmallVectorTemplateCommon<llvm::SCEV const*, void>::isSmall() const /repositories/llvm-project/llvm/include/llvm/ADT/SmallVector.h:131:39
 #17 0x00007fea73aeb426 llvm::SmallVectorImpl<llvm::SCEV const*>::~SmallVectorImpl() /repositories/llvm-project/llvm/include/llvm/ADT/SmallVector.h:388:16
 #18 0x00007fea73aeb426 llvm::SmallVector<llvm::SCEV const*, 4u>::~SmallVector() /repositories/llvm-project/llvm/include/llvm/ADT/SmallVector.h:898:3
 #19 0x00007fea73aeb426 llvm::ScalarEvolution::createNodeForGEP(llvm::GEPOperator*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:5297:1
 #20 0x00007fea73ae42a9 llvm::ScalarEvolution::createSCEV(llvm::Value*) /repositories/llvm-project/llvm/lib/Analysis/ScalarEvolution.cpp:0:12
<...>

[lebedev.ri]

createSCEV(): don't model nullptr constant as zero integer, but as SCEVUnknon.

[lebedev.ri]

polly/test/Isl/CodeGen/ptrtoint_as_parameter.ll

3

If you want, I can fix up the polly stuff after this patch is finished.

Yes, that would be awesome, thank you! I'm not at all familiar with polly.

[lebedev.ri]

Rebased, NFC.

[efriedma]

llvm/lib/Analysis/ScalarEvolution.cpp

3586–3589

Oh, that makes sense. Maybe worth adding a comment to explain.

5540

If the index width is narrower than pointer width, the range computed using zextOrTrunc is nonsense: the actual pointer value may not fit into the index type at all.

Off the top of my head, I'm not sure what the canonical IR looks like in cases like that; do we canonicalize the ptrtoint to the pointer width, or the index width?

6488

This shouldn't be necessary with the other change for null pointers.

[efriedma]

Oh, also, are you planning to implement the SCEV simplifications in this patch, or a followup? I can see reasons to go either way, I guess. I'd weakly lean towards implementing them here, so we can avoid churn implementing handling for cases that can't happen after simplification.

[lebedev.ri]

In D89456#2333152, @efriedma wrote:

Oh, also, are you planning to implement the SCEV simplifications in this patch, or a followup? I can see reasons to go either way, I guess. I'd weakly lean towards implementing them here, so we can avoid churn implementing handling for cases that can't happen after simplification.

I would strongly prefer to do that in a follow-up patch, since that is more in-line with incremental development / iterative improvements.

llvm/lib/Analysis/ScalarEvolution.cpp

5540

Let me take one more look at what is going on there..

[lebedev.ri]

@efriedma thank you for taking a look!
Addressed review notes.

llvm/lib/Analysis/ScalarEvolution.cpp

5540

Addressed by D89540.

[lebedev.ri]

Based on disscussion in D89540, let's just not bother with the case where index size doesn't match pointer size.

[efriedma]

I think this looks good. But I'd like a second opinion since this is a substantial change to SCEV modeling.

llvm/unittests/Transforms/Utils/ScalarEvolutionExpanderTest.cpp

957 ↗

(On Diff #298698)

Please reformat this to something readable.

[lebedev.ri]

Reformat the snippet.

Looks like removal of nullptr constant special handling affected
polly tests and i didn't notice it, still need to update them.

In D89456#2335847, @efriedma wrote:

I think this looks good. But I'd like a second opinion since this is a substantial change to SCEV modeling.

@efriedma thank you for taking a look!

In D89456#2335847, @efriedma wrote:

But I'd like a second opinion since this is a substantial change to SCEV modeling.

@mkazantsev @fhahn thoughts? :)

[lebedev.ri]

Mostly update polly tests.

[lebedev.ri]

Rebased, NFC.
Added https://bugs.llvm.org/show_bug.cgi?id=46786#c26 test coverage (after rGec54867df5e7f20e12146e628af34f0384308bcb fix)

[mkazantsev]

I don't think that mixing null into AddRecs is correct and expected.

llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h

100

Nit: better add it last, and keep it 1 per line.

llvm/test/Analysis/ScalarEvolution/max-backedge-taken-count-guard-info.ll

534 ↗

(On Diff #298843)

What's the type of the AddRec here? Is it an integral-type AddRec with pointer base? If so, this will be a source of various bugs because the code relies on fact that AddRec's type matches Base's type in many places.

[mkazantsev]

Seems that this patch leads to worse code generation in Polly in many cases. And I don't see a single case where it does something useful. I think we should have fixes for all of them if we want to merge it.

polly/test/Isl/CodeGen/partial_write_impossible_restriction.ll

8 ↗

(On Diff #298843)

TODO/FIXME?

polly/test/Isl/CodeGen/phi_after_error_block_outside_of_scop.ll

7 ↗

(On Diff #298843)

Regression.

polly/test/Isl/CodeGen/pointer-type-expressions.ll

36 ↗

(On Diff #298843)

Regression.

polly/test/ScopInfo/int2ptr_ptr2int.ll

33

Regression.

polly/test/ScopInfo/multidim_2d_with_modref_call_2.ll

56 ↗

(On Diff #298843)

Regression.

[efriedma]

llvm/test/Analysis/ScalarEvolution/max-backedge-taken-count-guard-info.ll

534 ↗

(On Diff #298843)

Should be a pointer-type addrec; it's treating "null" as an opaque pointer.

polly/test/Isl/CodeGen/pointer-type-expressions.ll

36 ↗

(On Diff #298843)

I suspect the change to null handling is changing the way the icmp is analyzed; should be easy to fix? I'll try to find time to look in the next couple days.

polly/test/ScopInfo/multidim_2d_with_modref_call_2.ll

56 ↗

(On Diff #298843)

Is it? As far as I can tell, the llvm.gcread is actually loading from a null pointer.

[lebedev.ri]

I think we are conflating things here.
@efriedma while i agree that treating nullptr constant as zero seems, suboptimal?,
i'm not sure we have to do that change immediately together with the ptrtoint handling?
Can we do that later? I'll undo it for now..

[lebedev.ri]

Backout controversial nullptr constant handling changes - should be a separate patch.

[mkazantsev]

polly/test/ScopInfo/int2ptr_ptr2int_2.ll

37

This code is still worse than it used to be. What boons do we expect from this patch?

[lebedev.ri]

polly/test/ScopInfo/int2ptr_ptr2int_2.ll

37

E.g. see the example suggested by @efriedma - @pr46786_c26_char()/@pr46786_c26_int() in llvm/test/Analysis/ScalarEvolution/ptrtoint.ll.
If we don't model ptrtoint, we basically fail to analyze the address of the load/store there,
while it's actually quite simple after D89692.

[lebedev.ri]

Will rebase once i have proper test coverage for D89692 - still need tests for udiv/mul involving a pointer.

[lebedev.ri]

Rebased, addded proper test coverage.

[mkazantsev]

llvm/lib/Analysis/ScalarEvolution.cpp

8483

It doesn't look like the right way to check for loop invariance. getSCEVAtScope can potentially simplify your expression that is still invariant. Example: you have Op = A + B and loop is guarded by condition B = 0. getSCEVAtScope(Op) may return A which is still loop invariant, but not equal to Op.

What you might be looking for is isAvailableAtLoopEntry.

[lebedev.ri]

@mkazantsev thank you for taking a look!

llvm/lib/Analysis/ScalarEvolution.cpp

8483

Disclaimer: *i'm* not looking for loop invariance.
This chunk is a verbatum copy-paste from SCEVTruncateExpr/SCEVSignExtendExpr/SCEVZeroExtendExpr handling above.
If this isn't the right handling, then they are all wrong, and that's a preexisting problem.

[mkazantsev]

I don't see any more problems, thanks.

llvm/lib/Analysis/ScalarEvolution.cpp

8483

Allright, maybe it's just a misleading comment then. Otherwise the code looks fine to me. I'll take a look later into these pieces.

[lebedev.ri]

In D89456#2349736, @mkazantsev wrote:

I don't see any more problems, thanks.

Thank you for the review!
I think it makes sense to land the simplifications (D89692) about at the same time,
so i'll wait until we are happy with that patch too.

[lebedev.ri]

Rebased, NFC.

[lebedev.ri]

Rebased, NFC.

[nikic]

SCEVUnknown is implemented as a value handle that nulls out the SCEV expression on deletion, and whenever a SCEV expression for a Value is looked up, we check whether there are any nullptr SCEVUnknowns and discard them in that case.

As SCEVPtrToInt is really similar to SCEVUnknown, I've been wondering why we need this handling for SCEVUnknown but not for SCEVPtrToInt.

(I don't have any particular reason for this question, just confused while reading the code...)

[lebedev.ri]

In D89456#2697266, @nikic wrote:

SCEVUnknown is implemented as a value handle that nulls out the SCEV expression on deletion, and whenever a SCEV expression for a Value is looked up, we check whether there are any nullptr SCEVUnknowns and discard them in that case.

As SCEVPtrToInt is really similar to SCEVUnknown, I've been wondering why we need this handling for SCEVUnknown but not for SCEVPtrToInt.

(I don't have any particular reason for this question, just confused while reading the code...)

SCEVPtrToInt isn't really similar to SCEVUnknown, because former is a "proper" SCEV expression,
with a SCEV expression parent, while latter is a "root" expression, with LLVM IR Value* as a parent.
So i wouldn't see why it would need the same handling as SCEVUnknown.
Or to reword, shouldn't then every single SCEV expression have that same handling as SCEVUnknown?

[nikic]

In D89456#2697284, @lebedev.ri wrote:

In D89456#2697266, @nikic wrote:

SCEVUnknown is implemented as a value handle that nulls out the SCEV expression on deletion, and whenever a SCEV expression for a Value is looked up, we check whether there are any nullptr SCEVUnknowns and discard them in that case.

As SCEVPtrToInt is really similar to SCEVUnknown, I've been wondering why we need this handling for SCEVUnknown but not for SCEVPtrToInt.

(I don't have any particular reason for this question, just confused while reading the code...)

SCEVPtrToInt isn't really similar to SCEVUnknown, because former is a "proper" SCEV expression,
with a SCEV expression parent, while latter is a "root" expression, with LLVM IR Value* as a parent.
So i wouldn't see why it would need the same handling as SCEVUnknown.
Or to reword, shouldn't then every single SCEV expression have that same handling as SCEVUnknown?

Oh, of course! I got really confused here. For some reason I thought that SCEVPtrToInt directly referenced an IR value. I have no idea where I got that impression in the first place, it doesn't make sense.

[lebedev.ri]

In D89456#2697285, @nikic wrote:

In D89456#2697284, @lebedev.ri wrote:

In D89456#2697266, @nikic wrote:

SCEVUnknown is implemented as a value handle that nulls out the SCEV expression on deletion, and whenever a SCEV expression for a Value is looked up, we check whether there are any nullptr SCEVUnknowns and discard them in that case.

As SCEVPtrToInt is really similar to SCEVUnknown, I've been wondering why we need this handling for SCEVUnknown but not for SCEVPtrToInt.

(I don't have any particular reason for this question, just confused while reading the code...)

SCEVPtrToInt isn't really similar to SCEVUnknown, because former is a "proper" SCEV expression,
with a SCEV expression parent, while latter is a "root" expression, with LLVM IR Value* as a parent.
So i wouldn't see why it would need the same handling as SCEVUnknown.
Or to reword, shouldn't then every single SCEV expression have that same handling as SCEVUnknown?

Oh, of course! I got really confused here. For some reason I thought that SCEVPtrToInt directly referenced an IR value. I have no idea where I got that impression in the first place, it doesn't make sense.

It does make sense, and that would be a totally valid model for SCEVPtrToInt, but i specifically choose *not* to use it.

llvm/include/llvm/Analysis/ScalarEvolution.h

public:
 
   /// Return a SCEV expression for the full generality of the specified
   /// expression.
   const SCEV *getSCEV(Value *V);
 
   const SCEV *getConstant(ConstantInt *V);
   const SCEV *getConstant(const APInt &Val);
   const SCEV *getConstant(Type *Ty, uint64_t V, bool isSigned = false);
+  const SCEV *getPtrToIntExpr(const SCEV *Op, Type *Ty, unsigned Depth = 0);
   const SCEV *getTruncateExpr(const SCEV *Op, Type *Ty, unsigned Depth = 0);
   const SCEV *getZeroExtendExpr(const SCEV *Op, Type *Ty, unsigned Depth = 0);
   const SCEV *getSignExtendExpr(const SCEV *Op, Type *Ty, unsigned Depth = 0);
   const SCEV *getAnyExtendExpr(const SCEV *Op, Type *Ty);
   const SCEV *getAddExpr(SmallVectorImpl<const SCEV *> &Ops,
                          SCEV::NoWrapFlags Flags = SCEV::FlagAnyWrap,
                          unsigned Depth = 0);
   const SCEV *getAddExpr(const SCEV *LHS, const SCEV *RHS,

llvm/include/llvm/Analysis/ScalarEvolutionDivision.h

public:
   // Computes the Quotient and Remainder of the division of Numerator by
   // Denominator.
   static void divide(ScalarEvolution &SE, const SCEV *Numerator,
                      const SCEV *Denominator, const SCEV **Quotient,
                      const SCEV **Remainder);
 
   // Except in the trivial case described above, we do not know how to divide
   // Expr by Denominator for the following functions with empty implementation.
+  void visitPtrToIntExpr(const SCEVPtrToIntExpr *Numerator) {}
   void visitTruncateExpr(const SCEVTruncateExpr *Numerator) {}
   void visitZeroExtendExpr(const SCEVZeroExtendExpr *Numerator) {}
   void visitSignExtendExpr(const SCEVSignExtendExpr *Numerator) {}
   void visitUDivExpr(const SCEVUDivExpr *Numerator) {}
   void visitSMaxExpr(const SCEVSMaxExpr *Numerator) {}
   void visitUMaxExpr(const SCEVUMaxExpr *Numerator) {}
   void visitSMinExpr(const SCEVSMinExpr *Numerator) {}
   void visitUMinExpr(const SCEVUMinExpr *Numerator) {}

llvm/include/llvm/Analysis/ScalarEvolutionExpressions.h

 namespace llvm {
 
 class APInt;
 class Constant;
 class ConstantRange;
 class Loop;
 class Type;
 
   enum SCEVTypes : unsigned short {
     // These should be ordered in terms of increasing complexity to make the
     // folders simpler.
     scConstant, scTruncate, scZeroExtend, scSignExtend, scAddExpr, scMulExpr,
     scUDivExpr, scAddRecExpr, scUMaxExpr, scSMaxExpr, scUMinExpr, scSMinExpr,
-    scUnknown, scCouldNotCompute
+    scPtrToInt, scUnknown, scCouldNotCompute
   };
 
   /// This class represents a constant integer value.
   class SCEVConstant : public SCEV {
     friend class ScalarEvolution;
 
     ConstantInt *V;
 
     SCEVConstant(const FoldingSetNodeIDRef ID, ConstantInt *v) :
       SCEV(ID, scConstant, 1), V(v) {}
 
   public:
     ConstantInt *getValue() const { return V; }
     const APInt &getAPInt() const { return getValue()->getValue(); }
 
     Type *getType() const { return V->getType(); }
 
     /// Methods for support type inquiry through isa, cast, and dyn_cast:
     static bool classof(const SCEV *S) {
       return S->getSCEVType() == scConstant;
     }
   };
 
   inline unsigned short computeExpressionSize(ArrayRef<const SCEV *> Args) {
     APInt Size(16, 1);
     for (auto *Arg : Args)
       Size = Size.uadd_sat(APInt(16, Arg->getExpressionSize()));
     return (unsigned short)Size.getZExtValue();
   }
 
   /// This is the base class for unary cast operator classes.
-  class SCEVIntegralCastExpr : public SCEV {
+  class SCEVCastExpr : public SCEV {
   protected:
     std::array<const SCEV *, 1> Operands;
     Type *Ty;
 
-    SCEVIntegralCastExpr(const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy,
-                         const SCEV *op, Type *ty);
+    SCEVCastExpr(const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy, const SCEV *op,
+                 Type *ty);
 
   public:
     const SCEV *getOperand() const { return Operands[0]; }
     const SCEV *getOperand(unsigned i) const {
       assert(i == 0 && "Operand index out of range!");
       return Operands[0];
     }
     using op_iterator = std::array<const SCEV *, 1>::const_iterator;
     using op_range = iterator_range<op_iterator>;
 
     op_range operands() const {
       return make_range(Operands.begin(), Operands.end());
     }
     size_t getNumOperands() const { return 1; }
     Type *getType() const { return Ty; }
 
     /// Methods for support type inquiry through isa, cast, and dyn_cast:
     static bool classof(const SCEV *S) {
+      return S->getSCEVType() == scPtrToInt || S->getSCEVType() == scTruncate ||
+             S->getSCEVType() == scZeroExtend ||
+             S->getSCEVType() == scSignExtend;
+    }
+  };
+
+  /// This class represents a cast from a pointer to a pointer-sized integer
+  /// value.
+  class SCEVPtrToIntExpr : public SCEVCastExpr {
+    friend class ScalarEvolution;
+
+    SCEVPtrToIntExpr(const FoldingSetNodeIDRef ID, const SCEV *Op, Type *ITy);
+
+  public:
+    /// Methods for support type inquiry through isa, cast, and dyn_cast:
+    static bool classof(const SCEV *S) {
+      return S->getSCEVType() == scPtrToInt;
+    }
+  };
+
+  /// This is the base class for unary integral cast operator classes.
+  class SCEVIntegralCastExpr : public SCEVCastExpr {
+  protected:
+    SCEVIntegralCastExpr(const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy,
+                         const SCEV *op, Type *ty);
+
+  public:
+    /// Methods for support type inquiry through isa, cast, and dyn_cast:
+    static bool classof(const SCEV *S) {
       return S->getSCEVType() == scTruncate ||
              S->getSCEVType() == scZeroExtend ||
              S->getSCEVType() == scSignExtend;
     }
   };
 
   /// This class represents a truncation of an integer value to a
   /// smaller integer value.
class Type;
   /// This class defines a simple visitor class that may be used for
   /// various SCEV analysis purposes.
   template<typename SC, typename RetVal=void>
   struct SCEVVisitor {
     RetVal visit(const SCEV *S) {
       switch (S->getSCEVType()) {
       case scConstant:
         return ((SC*)this)->visitConstant((const SCEVConstant*)S);
+      case scPtrToInt:
+        return ((SC *)this)->visitPtrToIntExpr((const SCEVPtrToIntExpr *)S);
       case scTruncate:
         return ((SC*)this)->visitTruncateExpr((const SCEVTruncateExpr*)S);
       case scZeroExtend:
         return ((SC*)this)->visitZeroExtendExpr((const SCEVZeroExtendExpr*)S);
       case scSignExtend:
         return ((SC*)this)->visitSignExtendExpr((const SCEVSignExtendExpr*)S);
       case scAddExpr:
         return ((SC*)this)->visitAddExpr((const SCEVAddExpr*)S);
void visitAll(const SCEV *Root) {
       push(Root);
       while (!Worklist.empty() && !Visitor.isDone()) {
         const SCEV *S = Worklist.pop_back_val();
 
         switch (S->getSCEVType()) {
         case scConstant:
         case scUnknown:
           continue;
+        case scPtrToInt:
         case scTruncate:
         case scZeroExtend:
         case scSignExtend:
-          push(cast<SCEVIntegralCastExpr>(S)->getOperand());
+          push(cast<SCEVCastExpr>(S)->getOperand());
           continue;
         case scAddExpr:
         case scMulExpr:
         case scSMaxExpr:
         case scUMaxExpr:
         case scSMinExpr:
         case scUMinExpr:
         case scAddRecExpr:
const SCEV *visit(const SCEV *S) {
       assert(Result.second && "Should insert a new entry");
       return Result.first->second;
     }
 
     const SCEV *visitConstant(const SCEVConstant *Constant) {
       return Constant;
     }
 
+    const SCEV *visitPtrToIntExpr(const SCEVPtrToIntExpr *Expr) {
+      const SCEV *Operand = ((SC *)this)->visit(Expr->getOperand());
+      return Operand == Expr->getOperand()
+                 ? Expr
+                 : SE.getPtrToIntExpr(Operand, Expr->getType());
+    }
+
     const SCEV *visitTruncateExpr(const SCEVTruncateExpr *Expr) {
       const SCEV *Operand = ((SC*)this)->visit(Expr->getOperand());
       return Operand == Expr->getOperand()
                  ? Expr
                  : SE.getTruncateExpr(Operand, Expr->getType());
     }
 
     const SCEV *visitZeroExtendExpr(const SCEVZeroExtendExpr *Expr) {

llvm/include/llvm/Transforms/Utils/ScalarEvolutionExpander.h

private:
 
   Value *expand(const SCEV *S);
 
   /// Determine the most "relevant" loop for the given SCEV.
   const Loop *getRelevantLoop(const SCEV *);
 
   Value *visitConstant(const SCEVConstant *S) { return S->getValue(); }
 
+  Value *visitPtrToIntExpr(const SCEVPtrToIntExpr *S);
+
   Value *visitTruncateExpr(const SCEVTruncateExpr *S);
 
   Value *visitZeroExtendExpr(const SCEVZeroExtendExpr *S);
 
   Value *visitSignExtendExpr(const SCEVSignExtendExpr *S);
 
   Value *visitAddExpr(const SCEVAddExpr *S);
 

llvm/lib/Analysis/ScalarEvolution.cpp

 }
 #endif
 
 void SCEV::print(raw_ostream &OS) const {
   switch (getSCEVType()) {
   case scConstant:
     cast<SCEVConstant>(this)->getValue()->printAsOperand(OS, false);
     return;
+  case scPtrToInt: {
+    const SCEVPtrToIntExpr *PtrToInt = cast<SCEVPtrToIntExpr>(this);
+    const SCEV *Op = PtrToInt->getOperand();
+    OS << "(ptrtoint " << *Op->getType() << " " << *Op << " to "
+       << *PtrToInt->getType() << ")";
+    return;
+  }
   case scTruncate: {
     const SCEVTruncateExpr *Trunc = cast<SCEVTruncateExpr>(this);
     const SCEV *Op = Trunc->getOperand();
     OS << "(trunc " << *Op->getType() << " " << *Op << " to "
        << *Trunc->getType() << ")";
     return;
   }
   case scZeroExtend: {
void SCEV::print(raw_ostream &OS) const {
   }
   llvm_unreachable("Unknown SCEV kind!");
 }
 
 Type *SCEV::getType() const {
   switch (getSCEVType()) {
   case scConstant:
     return cast<SCEVConstant>(this)->getType();
+  case scPtrToInt:
   case scTruncate:
   case scZeroExtend:
   case scSignExtend:
-    return cast<SCEVIntegralCastExpr>(this)->getType();
+    return cast<SCEVCastExpr>(this)->getType();
   case scAddRecExpr:
   case scMulExpr:
   case scUMaxExpr:
   case scSMaxExpr:
   case scUMinExpr:
   case scSMinExpr:
     return cast<SCEVNAryExpr>(this)->getType();
   case scAddExpr:

 }
 
 const SCEV *
 ScalarEvolution::getConstant(Type *Ty, uint64_t V, bool isSigned) {
   IntegerType *ITy = cast<IntegerType>(getEffectiveSCEVType(Ty));
   return getConstant(ConstantInt::get(ITy, V, isSigned));
 }
 
-SCEVIntegralCastExpr::SCEVIntegralCastExpr(const FoldingSetNodeIDRef ID,
-                                           SCEVTypes SCEVTy, const SCEV *op,
-                                           Type *ty)
+SCEVCastExpr::SCEVCastExpr(const FoldingSetNodeIDRef ID, SCEVTypes SCEVTy,
+                           const SCEV *op, Type *ty)
     : SCEV(ID, SCEVTy, computeExpressionSize(op)), Ty(ty) {
   Operands[0] = op;
 }
 
+SCEVPtrToIntExpr::SCEVPtrToIntExpr(const FoldingSetNodeIDRef ID, const SCEV *Op,
+                                   Type *ITy)
+    : SCEVCastExpr(ID, scPtrToInt, Op, ITy) {
+  assert(getOperand()->getType()->isPointerTy() && Ty->isIntegerTy() &&
+         "Must be a non-bit-width-changing pointer-to-integer cast!");
+}
+
+SCEVIntegralCastExpr::SCEVIntegralCastExpr(const FoldingSetNodeIDRef ID,
+                                           SCEVTypes SCEVTy, const SCEV *op,
+                                           Type *ty)
+    : SCEVCastExpr(ID, SCEVTy, op, ty) {}
+
 SCEVTruncateExpr::SCEVTruncateExpr(const FoldingSetNodeIDRef ID, const SCEV *op,
                                    Type *ty)
     : SCEVIntegralCastExpr(ID, scTruncate, op, ty) {
   assert(getOperand()->getType()->isIntOrPtrTy() && Ty->isIntOrPtrTy() &&
          "Cannot truncate non-integer value!");
 }
 
 SCEVZeroExtendExpr::SCEVZeroExtendExpr(const FoldingSetNodeIDRef ID,
if (X != 0)
       return X;
     X = CompareSCEVComplexity(EqCacheSCEV, EqCacheValue, LI, LC->getRHS(),
                               RC->getRHS(), DT, Depth + 1);
     if (X == 0)
       EqCacheSCEV.unionSets(LHS, RHS);
     return X;
   }
 
+  case scPtrToInt:
   case scTruncate:
   case scZeroExtend:
   case scSignExtend: {
-    const SCEVIntegralCastExpr *LC = cast<SCEVIntegralCastExpr>(LHS);
-    const SCEVIntegralCastExpr *RC = cast<SCEVIntegralCastExpr>(RHS);
+    const SCEVCastExpr *LC = cast<SCEVCastExpr>(LHS);
+    const SCEVCastExpr *RC = cast<SCEVCastExpr>(RHS);
 
     // Compare cast expressions by operand.
     int X = CompareSCEVComplexity(EqCacheSCEV, EqCacheValue, LI,
                                   LC->getOperand(), RC->getOperand(), DT,
                                   Depth + 1);
     if (X == 0)
       EqCacheSCEV.unionSets(LHS, RHS);
     return X;
const SCEV *SCEVAddRecExpr::evaluateAtIteration(const SCEV *It,
   }
   return Result;
 }
 
 //===----------------------------------------------------------------------===//
 //                    SCEV Expression folder implementations
 //===----------------------------------------------------------------------===//
 
+const SCEV *ScalarEvolution::getPtrToIntExpr(const SCEV *Op, Type *Ty,
+                                             unsigned Depth) {
+  assert(Ty->isIntegerTy() && "Target type must be an integer type!");
+
+  // We could be called with an integer-typed operands during SCEV rewrites.
+  // Since the operand is an integer already, just perform zext/trunc/self cast.
+  if (!Op->getType()->isPointerTy())
+    return getTruncateOrZeroExtend(Op, Ty);
+
+  FoldingSetNodeID ID;
+  ID.AddInteger(scPtrToInt);
+  ID.AddPointer(Op);
+  void *IP = nullptr;
+  if (const SCEV *S = UniqueSCEVs.FindNodeOrInsertPos(ID, IP))
+    return getTruncateOrZeroExtend(S, Ty);
+
+  assert(!isa<SCEVConstant>(Op) &&
+         "SCEVConstant is an integer, no constant folding to do.");
+
+  // FIXME: simplifications.
+
+  // The cast wasn't folded; create an explicit cast node. We can reuse
+  // the existing insert position since if we get here, we won't have
+  // made any changes which would invalidate it.
+  Type *IntPtrTy = getDataLayout().getIntPtrType(Op->getType());
+  assert(getDataLayout().getTypeSizeInBits(getEffectiveSCEVType(
+             Op->getType())) == getDataLayout().getTypeSizeInBits(IntPtrTy) &&
+         "We can only model ptrtoint if SCEV's effective (integer) type is "
+         "sufficiently wide to represent all possible pointer values.");
+  SCEV *S = new (SCEVAllocator)
+      SCEVPtrToIntExpr(ID.Intern(SCEVAllocator), Op, IntPtrTy);
+  UniqueSCEVs.InsertNode(S, IP);
+  addToLoopUseLists(S);
+  return getTruncateOrZeroExtend(S, Ty);
+}
+
 const SCEV *ScalarEvolution::getTruncateExpr(const SCEV *Op, Type *Ty,
                                              unsigned Depth) {
   assert(getTypeSizeInBits(Op->getType()) > getTypeSizeInBits(Ty) &&
          "This is not a truncating conversion!");
   assert(isSCEVable(Ty) &&
          "This is not a conversion to a SCEVable type!");
   Ty = getEffectiveSCEVType(Ty);
 
const SCEV *ScalarEvolution::getUMinExpr(const SCEV *LHS,
   return getUMinExpr(Ops);
 }
 
 const SCEV *ScalarEvolution::getUMinExpr(SmallVectorImpl<const SCEV *> &Ops) {
   return getMinMaxExpr(scUMinExpr, Ops);
 }
 
 const SCEV *ScalarEvolution::getSizeOfExpr(Type *IntTy, Type *AllocTy) {
-  // We can bypass creating a target-independent
-  // constant expression and then folding it back into a ConstantInt.
-  // This is just a compile-time optimization.
   if (isa<ScalableVectorType>(AllocTy)) {
     Constant *NullPtr = Constant::getNullValue(AllocTy->getPointerTo());
     Constant *One = ConstantInt::get(IntTy, 1);
     Constant *GEP = ConstantExpr::getGetElementPtr(AllocTy, NullPtr, One);
-    return getSCEV(ConstantExpr::getPtrToInt(GEP, IntTy));
+    // Note that the expression we created is the final expression, we don't
+    // want to simplify it any further Also, if we call a normal getSCEV(),
+    // we'll end up in an endless recursion. So just create an SCEVUnknown.
+    return getUnknown(ConstantExpr::getPtrToInt(GEP, IntTy));
   }
+  // We can bypass creating a target-independent
+  // constant expression and then folding it back into a ConstantInt.
+  // This is just a compile-time optimization.
   return getConstant(IntTy, getDataLayout().getTypeAllocSize(AllocTy));
 }
 
 const SCEV *ScalarEvolution::getOffsetOfExpr(Type *IntTy,
                                              StructType *STy,
                                              unsigned FieldNo) {
   // We can bypass creating a target-independent
   // constant expression and then folding it back into a ConstantInt.
struct CheckAvailable {
     bool setUnavailable() {
       TraversalDone = true;
       Available = false;
       return false;
     }
 
     bool follow(const SCEV *S) {
       switch (S->getSCEVType()) {
-      case scConstant: case scTruncate: case scZeroExtend: case scSignExtend:
-      case scAddExpr: case scMulExpr: case scUMaxExpr: case scSMaxExpr:
+      case scConstant:
+      case scPtrToInt:
+      case scTruncate:
+      case scZeroExtend:
+      case scSignExtend:
+      case scAddExpr:
+      case scMulExpr:
+      case scUMaxExpr:
+      case scSMaxExpr:
       case scUMinExpr:
       case scSMinExpr:
         // These expressions are available if their operand(s) is/are.
         return true;
 
       case scAddRecExpr: {
         // We allow add recurrences that are on the loop BB is in, or some
         // outer loop.  This guarantees availability because the value of the
for (auto Index = GEP->idx_begin(); Index != GEP->idx_end(); ++Index)
     IndexExprs.push_back(getSCEV(*Index));
   return getGEPExpr(GEP, IndexExprs);
 }
 
 uint32_t ScalarEvolution::GetMinTrailingZerosImpl(const SCEV *S) {
   if (const SCEVConstant *C = dyn_cast<SCEVConstant>(S))
     return C->getAPInt().countTrailingZeros();
 
+  if (const SCEVPtrToIntExpr *I = dyn_cast<SCEVPtrToIntExpr>(S))
+    return GetMinTrailingZeros(I->getOperand());
+
   if (const SCEVTruncateExpr *T = dyn_cast<SCEVTruncateExpr>(S))
     return std::min(GetMinTrailingZeros(T->getOperand()),
                     (uint32_t)getTypeSizeInBits(T->getType()));
 
   if (const SCEVZeroExtendExpr *E = dyn_cast<SCEVZeroExtendExpr>(S)) {
     uint32_t OpRes = GetMinTrailingZeros(E->getOperand());
     return OpRes == getTypeSizeInBits(E->getOperand()->getType())
                ? getTypeSizeInBits(E->getType())
ScalarEvolution::getRangeRef(const SCEV *S,
 
   if (const SCEVSignExtendExpr *SExt = dyn_cast<SCEVSignExtendExpr>(S)) {
     ConstantRange X = getRangeRef(SExt->getOperand(), SignHint);
     return setRange(SExt, SignHint,
                     ConservativeResult.intersectWith(X.signExtend(BitWidth),
                                                      RangeType));
   }
 
+  if (const SCEVPtrToIntExpr *PtrToInt = dyn_cast<SCEVPtrToIntExpr>(S)) {
+    ConstantRange X = getRangeRef(PtrToInt->getOperand(), SignHint);
+    return setRange(PtrToInt, SignHint, X);
+  }
+
   if (const SCEVTruncateExpr *Trunc = dyn_cast<SCEVTruncateExpr>(S)) {
     ConstantRange X = getRangeRef(Trunc->getOperand(), SignHint);
     return setRange(Trunc, SignHint,
                     ConservativeResult.intersectWith(X.truncate(BitWidth),
                                                      RangeType));
   }
 
   if (const SCEVAddRecExpr *AddRec = dyn_cast<SCEVAddRecExpr>(S)) {
if (Instruction *I = dyn_cast<Instruction>(V)) {
     // reachable. Such instructions don't matter, and they aren't required
     // to obey basic rules for definitions dominating uses which this
     // analysis depends on.
     if (!DT.isReachableFromEntry(I->getParent()))
       return getUnknown(UndefValue::get(V->getType()));
   } else if (ConstantInt *CI = dyn_cast<ConstantInt>(V))
     return getConstant(CI);
   else if (isa<ConstantPointerNull>(V))
+    // FIXME: we shouldn't special-case null pointer constant.
     return getZero(V->getType());
   else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V))
     return GA->isInterposable() ? getUnknown(V) : getSCEV(GA->getAliasee());
   else if (!isa<ConstantExpr>(V))
     return getUnknown(V);
 
   Operator *U = cast<Operator>(V);
   if (auto BO = MatchBinaryOp(U, DT)) {
case Instruction::SExt:
     return getSignExtendExpr(getSCEV(U->getOperand(0)), U->getType());
 
   case Instruction::BitCast:
     // BitCasts are no-op casts so we just eliminate the cast.
     if (isSCEVable(U->getType()) && isSCEVable(U->getOperand(0)->getType()))
       return getSCEV(U->getOperand(0));
     break;
 
+  case Instruction::PtrToInt: {
+    // Pointer to integer cast is straight-forward, so do model it.
+    Value *Ptr = U->getOperand(0);
+    const SCEV *Op = getSCEV(Ptr);
+    Type *DstIntTy = U->getType();
+    // SCEV doesn't have constant pointer expression type, but it supports
+    // nullptr constant (and only that one), which is modelled in SCEV as a
+    // zero integer constant. So just skip the ptrtoint cast for constants.
+    if (isa<SCEVConstant>(Op))
+      return getTruncateOrZeroExtend(Op, DstIntTy);
+    Type *PtrTy = Ptr->getType();
+    Type *IntPtrTy = getDataLayout().getIntPtrType(PtrTy);
+    // But only if effective SCEV (integer) type is wide enough to represent
+    // all possible pointer values.
+    if (getDataLayout().getTypeSizeInBits(getEffectiveSCEVType(PtrTy)) !=
+        getDataLayout().getTypeSizeInBits(IntPtrTy))
+      return getUnknown(V);
+    return getPtrToIntExpr(Op, DstIntTy);
+  }
+  case Instruction::IntToPtr:
+    // Just don't deal with inttoptr casts.
+    return getUnknown(V);
+
   case Instruction::SDiv:
     // If both operands are non-negative, this is just an udiv.
     if (isKnownNonNegative(getSCEV(U->getOperand(0))) &&
         isKnownNonNegative(getSCEV(U->getOperand(1))))
       return getUDivExpr(getSCEV(U->getOperand(0)), getSCEV(U->getOperand(1)));
     break;
 
   case Instruction::SRem:
     // If both operands are non-negative, this is just an urem.
     if (isKnownNonNegative(getSCEV(U->getOperand(0))) &&
         isKnownNonNegative(getSCEV(U->getOperand(1))))
       return getURemExpr(getSCEV(U->getOperand(0)), getSCEV(U->getOperand(1)));
     break;
 
-  // It's tempting to handle inttoptr and ptrtoint as no-ops, however this can
-  // lead to pointer expressions which cannot safely be expanded to GEPs,
-  // because ScalarEvolution doesn't respect the GEP aliasing rules when
-  // simplifying integer expressions.
-
   case Instruction::GetElementPtr:
     return createNodeForGEP(cast<GEPOperator>(U));
 
   case Instruction::PHI:
     return createNodeForPHI(cast<PHINode>(U));
 
   case Instruction::Select:
     // U can also be a select constant expr, which let fall through.  Since
case scSignExtend: {
     return nullptr;
   }
   case scZeroExtend: {
     const SCEVZeroExtendExpr *SZ = cast<SCEVZeroExtendExpr>(V);
     if (Constant *CastOp = BuildConstantFromSCEV(SZ->getOperand()))
       return ConstantExpr::getZExt(CastOp, SZ->getType());
     return nullptr;
   }
+  case scPtrToInt: {
+    const SCEVPtrToIntExpr *P2I = cast<SCEVPtrToIntExpr>(V);
+    if (Constant *CastOp = BuildConstantFromSCEV(P2I->getOperand()))
+      return ConstantExpr::getPtrToInt(CastOp, P2I->getType());
+
+    return nullptr;
+  }
   case scTruncate: {
     const SCEVTruncateExpr *ST = cast<SCEVTruncateExpr>(V);
     if (Constant *CastOp = BuildConstantFromSCEV(ST->getOperand()))
       return ConstantExpr::getTrunc(CastOp, ST->getType());
     return nullptr;
   }
   case scAddExpr: {
     const SCEVAddExpr *SA = cast<SCEVAddExpr>(V);
const SCEV *ScalarEvolution::computeSCEVAtScope(const SCEV *V, const Loop *L) {
 
   if (const SCEVTruncateExpr *Cast = dyn_cast<SCEVTruncateExpr>(V)) {
     const SCEV *Op = getSCEVAtScope(Cast->getOperand(), L);
     if (Op == Cast->getOperand())
       return Cast;  // must be loop invariant
     return getTruncateExpr(Op, Cast->getType());
   }
 
+  if (const SCEVPtrToIntExpr *Cast = dyn_cast<SCEVPtrToIntExpr>(V)) {
+    const SCEV *Op = getSCEVAtScope(Cast->getOperand(), L);
+    if (Op == Cast->getOperand())
+      return Cast; // must be loop invariant
+    return getPtrToIntExpr(Op, Cast->getType());
+  }
+
   llvm_unreachable("Unknown SCEV type!");
 }
 
 const SCEV *ScalarEvolution::getSCEVAtScope(Value *V, const Loop *L) {
   return getSCEVAtScope(getSCEV(V), L);
 }
 
 const SCEV *ScalarEvolution::stripInjectiveFunctions(const SCEV *S) const {
ScalarEvolution::getLoopDisposition(const SCEV *S, const Loop *L) {
   return D;
 }
 
 ScalarEvolution::LoopDisposition
 ScalarEvolution::computeLoopDisposition(const SCEV *S, const Loop *L) {
   switch (S->getSCEVType()) {
   case scConstant:
     return LoopInvariant;
+  case scPtrToInt:
   case scTruncate:
   case scZeroExtend:
   case scSignExtend:
-    return getLoopDisposition(cast<SCEVIntegralCastExpr>(S)->getOperand(), L);
+    return getLoopDisposition(cast<SCEVCastExpr>(S)->getOperand(), L);
   case scAddRecExpr: {
     const SCEVAddRecExpr *AR = cast<SCEVAddRecExpr>(S);
 
     // If L is the addrec's loop, it's computable.
     if (AR->getLoop() == L)
       return LoopComputable;
 
     // Add recurrences are never invariant in the function-body (null loop).
ScalarEvolution::getBlockDisposition(const SCEV *S, const BasicBlock *BB) {
   return D;
 }
 
 ScalarEvolution::BlockDisposition
 ScalarEvolution::computeBlockDisposition(const SCEV *S, const BasicBlock *BB) {
   switch (S->getSCEVType()) {
   case scConstant:
     return ProperlyDominatesBlock;
+  case scPtrToInt:
   case scTruncate:
   case scZeroExtend:
   case scSignExtend:
-    return getBlockDisposition(cast<SCEVIntegralCastExpr>(S)->getOperand(), BB);
+    return getBlockDisposition(cast<SCEVCastExpr>(S)->getOperand(), BB);
   case scAddRecExpr: {
     // This uses a "dominates" query instead of "properly dominates" query
     // to test for proper dominance too, because the instruction which
     // produces the addrec's value is a PHI, and a PHI effectively properly
     // dominates its entire containing block.
     const SCEVAddRecExpr *AR = cast<SCEVAddRecExpr>(S);
     if (!DT.dominates(AR->getLoop()->getHeader(), BB))
       return DoesNotDominateBlock;

llvm/lib/Transforms/Utils/ScalarEvolutionExpander.cpp

const Loop *SCEVExpander::getRelevantLoop(const SCEV *S) {
   if (const SCEVNAryExpr *N = dyn_cast<SCEVNAryExpr>(S)) {
     const Loop *L = nullptr;
     if (const SCEVAddRecExpr *AR = dyn_cast<SCEVAddRecExpr>(S))
       L = AR->getLoop();
     for (const SCEV *Op : N->operands())
       L = PickMostRelevantLoop(L, getRelevantLoop(Op), SE.DT);
     return RelevantLoops[N] = L;
   }
-  if (const SCEVIntegralCastExpr *C = dyn_cast<SCEVIntegralCastExpr>(S)) {
+  if (const SCEVCastExpr *C = dyn_cast<SCEVCastExpr>(S)) {
     const Loop *Result = getRelevantLoop(C->getOperand());
     return RelevantLoops[C] = Result;
   }
   if (const SCEVUDivExpr *D = dyn_cast<SCEVUDivExpr>(S)) {
     const Loop *Result = PickMostRelevantLoop(
         getRelevantLoop(D->getLHS()), getRelevantLoop(D->getRHS()), SE.DT);
     return RelevantLoops[D] = Result;
   }
Value *SCEVExpander::visitAddRecExpr(const SCEVAddRecExpr *S) {
   const SCEV *V = cast<SCEVAddRecExpr>(NewS)->evaluateAtIteration(IH, SE);
   //cerr << "Evaluated: " << *this << "\n     to: " << *V << "\n";
 
   // Truncate the result down to the original type, if needed.
   const SCEV *T = SE.getTruncateOrNoop(V, Ty);
   return expand(T);
 }
 
+Value *SCEVExpander::visitPtrToIntExpr(const SCEVPtrToIntExpr *S) {
+  Value *V =
+      expandCodeForImpl(S->getOperand(), S->getOperand()->getType(), false);
+  return Builder.CreatePtrToInt(V, S->getType());
+}
+
 Value *SCEVExpander::visitTruncateExpr(const SCEVTruncateExpr *S) {
   Type *Ty = SE.getEffectiveSCEVType(S->getType());
   Value *V = expandCodeForImpl(
       S->getOperand(), SE.getEffectiveSCEVType(S->getOperand()->getType()),
       false);
   return Builder.CreateTrunc(V, Ty);
 }
 
template<typename T> static int costAndCollectOperands(
   };
 
   switch (S->getSCEVType()) {
   case scCouldNotCompute:
     llvm_unreachable("Attempt to use a SCEVCouldNotCompute object!");
   case scUnknown:
   case scConstant:
     return 0;
+  case scPtrToInt:
+    Cost = CastCost(Instruction::PtrToInt);
+    break;
   case scTruncate:
     Cost = CastCost(Instruction::Trunc);
     break;
   case scZeroExtend:
     Cost = CastCost(Instruction::ZExt);
     break;
   case scSignExtend:
     Cost = CastCost(Instruction::SExt);
if (CostKind != TargetTransformInfo::TCK_CodeSize)
       return 0;
     const APInt &Imm = Constant->getAPInt();
     Type *Ty = S->getType();
     BudgetRemaining -= TTI.getIntImmCostInst(
         WorkItem.ParentOpcode, WorkItem.OperandIdx, Imm, Ty, CostKind);
     return BudgetRemaining < 0;
   }
   case scTruncate:
+  case scPtrToInt:
   case scZeroExtend:
   case scSignExtend: {
-    int Cost = costAndCollectOperands<SCEVIntegralCastExpr>(WorkItem, TTI,
-                                                            CostKind, Worklist);
+    int Cost =
+        costAndCollectOperands<SCEVCastExpr>(WorkItem, TTI, CostKind, Worklist);
     BudgetRemaining -= Cost;
     return false; // Will answer upon next entry into this function.
   }
   case scUDivExpr: {
     // UDivExpr is very likely a UDiv that ScalarEvolution's HowFarToZero or
     // HowManyLessThans produced to compute a precise expression, rather than a
     // UDiv from the user's code. If we can't find a UDiv in the code with some
     // simple searching, we need to account for it's cost.

llvm/test/Analysis/ScalarEvolution/add-expr-pointer-operand-sorting.ll

 ; CHECK-NEXT:    --> {%base,+,1}<nsw><%for.cond> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Computable }
 ; CHECK-NEXT:    %idxprom = sext i32 %f.0 to i64
 ; CHECK-NEXT:    --> {(sext i32 %base to i64),+,1}<nsw><%for.cond> U: [-2147483648,-9223372036854775808) S: [-2147483648,-9223372036854775808) Exits: <<Unknown>> LoopDispositions: { %for.cond: Computable }
 ; CHECK-NEXT:    %arrayidx = getelementptr inbounds [1 x [1 x i8]], [1 x [1 x i8]]* %e, i64 0, i64 %idxprom
 ; CHECK-NEXT:    --> {((sext i32 %base to i64) + %e)<nsw>,+,1}<nsw><%for.cond> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Computable }
 ; CHECK-NEXT:    %1 = load i32*, i32** @c, align 8
 ; CHECK-NEXT:    --> %1 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
 ; CHECK-NEXT:    %sub.ptr.lhs.cast = ptrtoint i32* %1 to i64
-; CHECK-NEXT:    --> %sub.ptr.lhs.cast U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
+; CHECK-NEXT:    --> (ptrtoint i32* %1 to i64) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
 ; CHECK-NEXT:    %sub.ptr.sub = sub i64 %sub.ptr.lhs.cast, ptrtoint ([1 x i32]* @b to i64)
-; CHECK-NEXT:    --> ((-1 * ptrtoint ([1 x i32]* @b to i64)) + %sub.ptr.lhs.cast) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
+; CHECK-NEXT:    --> ((-1 * (ptrtoint [1 x i32]* @b to i64)) + (ptrtoint i32* %1 to i64)) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
 ; CHECK-NEXT:    %sub.ptr.div = sdiv exact i64 %sub.ptr.sub, 4
 ; CHECK-NEXT:    --> %sub.ptr.div U: full-set S: [-2305843009213693952,2305843009213693952) Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
 ; CHECK-NEXT:    %arrayidx1 = getelementptr inbounds [1 x i8], [1 x i8]* %arrayidx, i64 0, i64 %sub.ptr.div
 ; CHECK-NEXT:    --> ({((sext i32 %base to i64) + %e)<nsw>,+,1}<nsw><%for.cond> + %sub.ptr.div)<nsw> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
 ; CHECK-NEXT:    %2 = load i8, i8* %arrayidx1, align 1
 ; CHECK-NEXT:    --> %2 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }
 ; CHECK-NEXT:    %conv = sext i8 %2 to i32
 ; CHECK-NEXT:    --> (sext i8 %2 to i32) U: [-128,128) S: [-128,128) Exits: <<Unknown>> LoopDispositions: { %for.cond: Variant }

llvm/test/Analysis/ScalarEvolution/no-wrap-add-exprs.ll

 ; CHECK-NEXT:    --> ((32 * %x) + (36 * %y)) U: [0,-3) S: [-128,125)
 ; CHECK-NEXT:    %s3 = add i8 %s2, 5
 ; CHECK-NEXT:    --> (5 + (32 * %x) + (36 * %y)) U: full-set S: full-set
 ; CHECK-NEXT:    %s3.zext = zext i8 %s3 to i16
 ; CHECK-NEXT:    --> (1 + (zext i8 (4 + (32 * %x) + (36 * %y)) to i16))<nuw><nsw> U: [1,254) S: [1,257)
 ; CHECK-NEXT:    %ptr = bitcast [16 x i8]* @z_addr to i8*
 ; CHECK-NEXT:    --> @z_addr U: [0,-3) S: [-9223372036854775808,9223372036854775805)
 ; CHECK-NEXT:    %int0 = ptrtoint i8* %ptr to i32
-; CHECK-NEXT:    --> %int0 U: [0,-3) S: [-2147483648,2147483645)
+; CHECK-NEXT:    --> (trunc i64 (ptrtoint [16 x i8]* @z_addr to i64) to i32) U: [0,-3) S: [-2147483648,2147483645)
 ; CHECK-NEXT:    %int5 = add i32 %int0, 5
-; CHECK-NEXT:    --> (5 + %int0) U: [5,2) S: [-2147483643,-2147483646)
+; CHECK-NEXT:    --> (5 + (trunc i64 (ptrtoint [16 x i8]* @z_addr to i64) to i32)) U: [5,2) S: [-2147483643,-2147483646)
 ; CHECK-NEXT:    %int.zext = zext i32 %int5 to i64
-; CHECK-NEXT:    --> (1 + (zext i32 (4 + %int0) to i64))<nuw><nsw> U: [1,4294967294) S: [1,4294967297)
+; CHECK-NEXT:    --> (1 + (zext i32 (4 + (trunc i64 (ptrtoint [16 x i8]* @z_addr to i64) to i32)) to i64))<nuw><nsw> U: [1,4294967294) S: [1,4294967297)
 ; CHECK-NEXT:    %ptr_noalign = bitcast [16 x i8]* @z_addr_noalign to i8*
 ; CHECK-NEXT:    --> @z_addr_noalign U: full-set S: full-set
 ; CHECK-NEXT:    %int0_na = ptrtoint i8* %ptr_noalign to i32
-; CHECK-NEXT:    --> %int0_na U: full-set S: full-set
+; CHECK-NEXT:    --> (trunc i64 (ptrtoint [16 x i8]* @z_addr_noalign to i64) to i32) U: full-set S: full-set
 ; CHECK-NEXT:    %int5_na = add i32 %int0_na, 5
-; CHECK-NEXT:    --> (5 + %int0_na) U: full-set S: full-set
+; CHECK-NEXT:    --> (5 + (trunc i64 (ptrtoint [16 x i8]* @z_addr_noalign to i64) to i32)) U: full-set S: full-set
 ; CHECK-NEXT:    %int.zext_na = zext i32 %int5_na to i64
-; CHECK-NEXT:    --> (zext i32 (5 + %int0_na) to i64) U: [0,4294967296) S: [0,4294967296)
+; CHECK-NEXT:    --> (zext i32 (5 + (trunc i64 (ptrtoint [16 x i8]* @z_addr_noalign to i64) to i32)) to i64) U: [0,4294967296) S: [0,4294967296)
 ; CHECK-NEXT:    %tmp = load i32, i32* %tmp_addr, align 4
 ; CHECK-NEXT:    --> %tmp U: full-set S: full-set
 ; CHECK-NEXT:    %mul = and i32 %tmp, -4
 ; CHECK-NEXT:    --> (4 * (%tmp /u 4))<nuw> U: [0,-3) S: [-2147483648,2147483645)
 ; CHECK-NEXT:    %add4 = add i32 %mul, 4
 ; CHECK-NEXT:    --> (4 + (4 * (%tmp /u 4))<nuw>) U: [0,-3) S: [-2147483648,2147483645)
 ; CHECK-NEXT:    %add4.zext = zext i32 %add4 to i64
 ; CHECK-NEXT:    --> (zext i32 (4 + (4 * (%tmp /u 4))<nuw>) to i64) U: [0,4294967293) S: [0,4294967296)

llvm/test/Analysis/ScalarEvolution/ptrtoint-constantexpr-loop.ll

 declare void @use16(i16)
 
 define hidden i32* @trunc_ptr_to_i64(i8* %arg, i32* %arg10) {
 ; PTR64_IDX64-LABEL: 'trunc_ptr_to_i64'
 ; PTR64_IDX64-NEXT:  Classifying expressions for: @trunc_ptr_to_i64
 ; PTR64_IDX64-NEXT:    %tmp = phi i32 [ 0, %bb ], [ %tmp18, %bb17 ]
 ; PTR64_IDX64-NEXT:    --> {0,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR64_IDX64-NEXT:    %tmp12 = getelementptr i8, i8* %arg, i64 ptrtoint ([0 x i8]* @global to i64)
-; PTR64_IDX64-NEXT:    --> (ptrtoint ([0 x i8]* @global to i64) + %arg) U: full-set S: full-set Exits: (ptrtoint ([0 x i8]* @global to i64) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR64_IDX64-NEXT:    --> ((ptrtoint [0 x i8]* @global to i64) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i64) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR64_IDX64-NEXT:    %tmp13 = bitcast i8* %tmp12 to i32*
-; PTR64_IDX64-NEXT:    --> (ptrtoint ([0 x i8]* @global to i64) + %arg) U: full-set S: full-set Exits: (ptrtoint ([0 x i8]* @global to i64) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR64_IDX64-NEXT:    --> ((ptrtoint [0 x i8]* @global to i64) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i64) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR64_IDX64-NEXT:    %tmp14 = load i32, i32* %tmp13, align 4
 ; PTR64_IDX64-NEXT:    --> %tmp14 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb11: Variant }
 ; PTR64_IDX64-NEXT:    %tmp18 = add i32 %tmp, 2
 ; PTR64_IDX64-NEXT:    --> {2,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR64_IDX64-NEXT:  Determining loop execution counts for: @trunc_ptr_to_i64
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable backedge-taken count.
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.

 ; PTR64_IDX32-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR64_IDX32-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.
 ;
 ; PTR16_IDX16-LABEL: 'trunc_ptr_to_i64'
 ; PTR16_IDX16-NEXT:  Classifying expressions for: @trunc_ptr_to_i64
 ; PTR16_IDX16-NEXT:    %tmp = phi i32 [ 0, %bb ], [ %tmp18, %bb17 ]
 ; PTR16_IDX16-NEXT:    --> {0,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR16_IDX16-NEXT:    %tmp12 = getelementptr i8, i8* %arg, i64 ptrtoint ([0 x i8]* @global to i64)
-; PTR16_IDX16-NEXT:    --> ((trunc i64 ptrtoint ([0 x i8]* @global to i64) to i16) + %arg) U: full-set S: full-set Exits: ((trunc i64 ptrtoint ([0 x i8]* @global to i64) to i16) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR16_IDX16-NEXT:    --> ((ptrtoint [0 x i8]* @global to i16) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i16) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR16_IDX16-NEXT:    %tmp13 = bitcast i8* %tmp12 to i32*
-; PTR16_IDX16-NEXT:    --> ((trunc i64 ptrtoint ([0 x i8]* @global to i64) to i16) + %arg) U: full-set S: full-set Exits: ((trunc i64 ptrtoint ([0 x i8]* @global to i64) to i16) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR16_IDX16-NEXT:    --> ((ptrtoint [0 x i8]* @global to i16) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i16) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR16_IDX16-NEXT:    %tmp14 = load i32, i32* %tmp13, align 4
 ; PTR16_IDX16-NEXT:    --> %tmp14 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb11: Variant }
 ; PTR16_IDX16-NEXT:    %tmp18 = add i32 %tmp, 2
 ; PTR16_IDX16-NEXT:    --> {2,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR16_IDX16-NEXT:  Determining loop execution counts for: @trunc_ptr_to_i64
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable backedge-taken count.
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.
bb17:                                             ; preds = %bb11
   br label %bb11
 }
 define hidden i32* @trunc_ptr_to_i32(i8* %arg, i32* %arg10) {
 ; PTR64_IDX64-LABEL: 'trunc_ptr_to_i32'
 ; PTR64_IDX64-NEXT:  Classifying expressions for: @trunc_ptr_to_i32
 ; PTR64_IDX64-NEXT:    %tmp = phi i32 [ 0, %bb ], [ %tmp18, %bb17 ]
 ; PTR64_IDX64-NEXT:    --> {0,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR64_IDX64-NEXT:    %tmp12 = getelementptr i8, i8* %arg, i32 ptrtoint ([0 x i8]* @global to i32)
-; PTR64_IDX64-NEXT:    --> ((sext i32 ptrtoint ([0 x i8]* @global to i32) to i64) + %arg) U: full-set S: full-set Exits: ((sext i32 ptrtoint ([0 x i8]* @global to i32) to i64) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR64_IDX64-NEXT:    --> ((sext i32 (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i32) to i64) + %arg) U: full-set S: full-set Exits: ((sext i32 (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i32) to i64) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR64_IDX64-NEXT:    %tmp13 = bitcast i8* %tmp12 to i32*
-; PTR64_IDX64-NEXT:    --> ((sext i32 ptrtoint ([0 x i8]* @global to i32) to i64) + %arg) U: full-set S: full-set Exits: ((sext i32 ptrtoint ([0 x i8]* @global to i32) to i64) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR64_IDX64-NEXT:    --> ((sext i32 (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i32) to i64) + %arg) U: full-set S: full-set Exits: ((sext i32 (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i32) to i64) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR64_IDX64-NEXT:    %tmp14 = load i32, i32* %tmp13, align 4
 ; PTR64_IDX64-NEXT:    --> %tmp14 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb11: Variant }
 ; PTR64_IDX64-NEXT:    %tmp18 = add i32 %tmp, 2
 ; PTR64_IDX64-NEXT:    --> {2,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR64_IDX64-NEXT:  Determining loop execution counts for: @trunc_ptr_to_i32
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable backedge-taken count.
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.

 ; PTR64_IDX32-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR64_IDX32-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.
 ;
 ; PTR16_IDX16-LABEL: 'trunc_ptr_to_i32'
 ; PTR16_IDX16-NEXT:  Classifying expressions for: @trunc_ptr_to_i32
 ; PTR16_IDX16-NEXT:    %tmp = phi i32 [ 0, %bb ], [ %tmp18, %bb17 ]
 ; PTR16_IDX16-NEXT:    --> {0,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR16_IDX16-NEXT:    %tmp12 = getelementptr i8, i8* %arg, i32 ptrtoint ([0 x i8]* @global to i32)
-; PTR16_IDX16-NEXT:    --> ((trunc i32 ptrtoint ([0 x i8]* @global to i32) to i16) + %arg) U: full-set S: full-set Exits: ((trunc i32 ptrtoint ([0 x i8]* @global to i32) to i16) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR16_IDX16-NEXT:    --> ((ptrtoint [0 x i8]* @global to i16) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i16) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR16_IDX16-NEXT:    %tmp13 = bitcast i8* %tmp12 to i32*
-; PTR16_IDX16-NEXT:    --> ((trunc i32 ptrtoint ([0 x i8]* @global to i32) to i16) + %arg) U: full-set S: full-set Exits: ((trunc i32 ptrtoint ([0 x i8]* @global to i32) to i16) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR16_IDX16-NEXT:    --> ((ptrtoint [0 x i8]* @global to i16) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i16) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR16_IDX16-NEXT:    %tmp14 = load i32, i32* %tmp13, align 4
 ; PTR16_IDX16-NEXT:    --> %tmp14 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb11: Variant }
 ; PTR16_IDX16-NEXT:    %tmp18 = add i32 %tmp, 2
 ; PTR16_IDX16-NEXT:    --> {2,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR16_IDX16-NEXT:  Determining loop execution counts for: @trunc_ptr_to_i32
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable backedge-taken count.
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.
bb17:                                             ; preds = %bb11
   br label %bb11
 }
 define hidden i32* @trunc_ptr_to_i128(i8* %arg, i32* %arg10) {
 ; PTR64_IDX64-LABEL: 'trunc_ptr_to_i128'
 ; PTR64_IDX64-NEXT:  Classifying expressions for: @trunc_ptr_to_i128
 ; PTR64_IDX64-NEXT:    %tmp = phi i32 [ 0, %bb ], [ %tmp18, %bb17 ]
 ; PTR64_IDX64-NEXT:    --> {0,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR64_IDX64-NEXT:    %tmp12 = getelementptr i8, i8* %arg, i128 ptrtoint ([0 x i8]* @global to i128)
-; PTR64_IDX64-NEXT:    --> ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i64) + %arg) U: full-set S: full-set Exits: ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i64) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR64_IDX64-NEXT:    --> ((ptrtoint [0 x i8]* @global to i64) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i64) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR64_IDX64-NEXT:    %tmp13 = bitcast i8* %tmp12 to i32*
-; PTR64_IDX64-NEXT:    --> ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i64) + %arg) U: full-set S: full-set Exits: ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i64) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR64_IDX64-NEXT:    --> ((ptrtoint [0 x i8]* @global to i64) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i64) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR64_IDX64-NEXT:    %tmp14 = load i32, i32* %tmp13, align 4
 ; PTR64_IDX64-NEXT:    --> %tmp14 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb11: Variant }
 ; PTR64_IDX64-NEXT:    %tmp18 = add i32 %tmp, 2
 ; PTR64_IDX64-NEXT:    --> {2,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR64_IDX64-NEXT:  Determining loop execution counts for: @trunc_ptr_to_i128
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable backedge-taken count.
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR64_IDX64-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.

 ; PTR64_IDX32-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR64_IDX32-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.
 ;
 ; PTR16_IDX16-LABEL: 'trunc_ptr_to_i128'
 ; PTR16_IDX16-NEXT:  Classifying expressions for: @trunc_ptr_to_i128
 ; PTR16_IDX16-NEXT:    %tmp = phi i32 [ 0, %bb ], [ %tmp18, %bb17 ]
 ; PTR16_IDX16-NEXT:    --> {0,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR16_IDX16-NEXT:    %tmp12 = getelementptr i8, i8* %arg, i128 ptrtoint ([0 x i8]* @global to i128)
-; PTR16_IDX16-NEXT:    --> ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i16) + %arg) U: full-set S: full-set Exits: ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i16) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR16_IDX16-NEXT:    --> ((ptrtoint [0 x i8]* @global to i16) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i16) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR16_IDX16-NEXT:    %tmp13 = bitcast i8* %tmp12 to i32*
-; PTR16_IDX16-NEXT:    --> ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i16) + %arg) U: full-set S: full-set Exits: ((trunc i128 ptrtoint ([0 x i8]* @global to i128) to i16) + %arg) LoopDispositions: { %bb11: Invariant }
+; PTR16_IDX16-NEXT:    --> ((ptrtoint [0 x i8]* @global to i16) + %arg) U: full-set S: full-set Exits: ((ptrtoint [0 x i8]* @global to i16) + %arg) LoopDispositions: { %bb11: Invariant }
 ; PTR16_IDX16-NEXT:    %tmp14 = load i32, i32* %tmp13, align 4
 ; PTR16_IDX16-NEXT:    --> %tmp14 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb11: Variant }
 ; PTR16_IDX16-NEXT:    %tmp18 = add i32 %tmp, 2
 ; PTR16_IDX16-NEXT:    --> {2,+,2}<%bb11> U: [0,-1) S: [-2147483648,2147483647) Exits: <<Unknown>> LoopDispositions: { %bb11: Computable }
 ; PTR16_IDX16-NEXT:  Determining loop execution counts for: @trunc_ptr_to_i128
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable backedge-taken count.
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable max backedge-taken count.
 ; PTR16_IDX16-NEXT:  Loop %bb11: Unpredictable predicated backedge-taken count.
bb16:                                             ; preds = %bb11
   ret i32* %arg10
 
 bb17:                                             ; preds = %bb11
   %tmp18 = add i32 %tmp, 2
   br label %bb11
 }
 
 define void @zext_ptr_to_i32(i32 %arg, i32 %arg6) {
-; X64-LABEL: 'zext_ptr_to_i32'
-; X64-NEXT:  Classifying expressions for: @zext_ptr_to_i32
-; X64-NEXT:    %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
-; X64-NEXT:    --> ((-1 * ptrtoint ([0 x i8]* @global to i32)) + %arg) U: full-set S: full-set Exits: ((-1 * ptrtoint ([0 x i8]* @global to i32)) + %arg) LoopDispositions: { %bb7: Invariant }
-; X64-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
-; X64-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
-; X64-NEXT:  Determining loop execution counts for: @zext_ptr_to_i32
-; X64-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
-; X64-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
-; X64-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
-;
-; X32-LABEL: 'zext_ptr_to_i32'
-; X32-NEXT:  Classifying expressions for: @zext_ptr_to_i32
-; X32-NEXT:    %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
-; X32-NEXT:    --> ((-1 * ptrtoint ([0 x i8]* @global to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * ptrtoint ([0 x i8]* @global to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
-; X32-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
-; X32-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
-; X32-NEXT:  Determining loop execution counts for: @zext_ptr_to_i32
-; X32-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
-; X32-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
-; X32-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+; PTR64_IDX64-LABEL: 'zext_ptr_to_i32'
+; PTR64_IDX64-NEXT:  Classifying expressions for: @zext_ptr_to_i32
+; PTR64_IDX64-NEXT:    %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
+; PTR64_IDX64-NEXT:    --> ((-1 * (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i32)) + %arg) U: full-set S: full-set Exits: ((-1 * (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i32)) + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR64_IDX64-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR64_IDX64-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR64_IDX64-NEXT:  Determining loop execution counts for: @zext_ptr_to_i32
+; PTR64_IDX64-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR64_IDX64-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR64_IDX64-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+;
+; PTR64_IDX32-LABEL: 'zext_ptr_to_i32'
+; PTR64_IDX32-NEXT:  Classifying expressions for: @zext_ptr_to_i32
+; PTR64_IDX32-NEXT:    %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
+; PTR64_IDX32-NEXT:    --> ((-1 * ptrtoint ([0 x i8]* @global to i32)) + %arg) U: full-set S: full-set Exits: ((-1 * ptrtoint ([0 x i8]* @global to i32)) + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR64_IDX32-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR64_IDX32-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR64_IDX32-NEXT:  Determining loop execution counts for: @zext_ptr_to_i32
+; PTR64_IDX32-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR64_IDX32-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR64_IDX32-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+;
+; PTR16_IDX16-LABEL: 'zext_ptr_to_i32'
+; PTR16_IDX16-NEXT:  Classifying expressions for: @zext_ptr_to_i32
+; PTR16_IDX16-NEXT:    %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
+; PTR16_IDX16-NEXT:    --> ((-1 * (zext i16 (ptrtoint [0 x i8]* @global to i16) to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * (zext i16 (ptrtoint [0 x i8]* @global to i16) to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR16_IDX16-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR16_IDX16-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR16_IDX16-NEXT:  Determining loop execution counts for: @zext_ptr_to_i32
+; PTR16_IDX16-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR16_IDX16-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR16_IDX16-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+;
+; PTR16_IDX32-LABEL: 'zext_ptr_to_i32'
+; PTR16_IDX32-NEXT:  Classifying expressions for: @zext_ptr_to_i32
+; PTR16_IDX32-NEXT:    %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
+; PTR16_IDX32-NEXT:    --> ((-1 * ptrtoint ([0 x i8]* @global to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * ptrtoint ([0 x i8]* @global to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR16_IDX32-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR16_IDX32-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR16_IDX32-NEXT:  Determining loop execution counts for: @zext_ptr_to_i32
+; PTR16_IDX32-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR16_IDX32-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR16_IDX32-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
 ;
 bb:
   br label %bb7
 
 bb7:                                              ; preds = %bb7, %bb
   %tmp = sub i32 %arg, ptrtoint ([0 x i8]* @global to i32)
   %tmp8 = icmp eq i32 %tmp, %arg6
   %tmp9 = select i1 %tmp8, i16 0, i16 1
   call void @use16(i16 %tmp9)
   br i1 %tmp8, label %bb7, label %bb10
 
 bb10:                                             ; preds = %bb7
   ret void
 }
 
 define void @sext_to_i32(i32 %arg, i32 %arg6) {
-; ALL-LABEL: 'sext_to_i32'
-; ALL-NEXT:  Classifying expressions for: @sext_to_i32
-; ALL-NEXT:    %tmp = sub i32 %arg, sext (i16 ptrtoint ([0 x i8]* @global to i16) to i32)
-; ALL-NEXT:    --> ((-1 * (sext i16 ptrtoint ([0 x i8]* @global to i16) to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * (sext i16 ptrtoint ([0 x i8]* @global to i16) to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
-; ALL-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
-; ALL-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
-; ALL-NEXT:  Determining loop execution counts for: @sext_to_i32
-; ALL-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
-; ALL-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
-; ALL-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+; PTR64_IDX64-LABEL: 'sext_to_i32'
+; PTR64_IDX64-NEXT:  Classifying expressions for: @sext_to_i32
+; PTR64_IDX64-NEXT:    %tmp = sub i32 %arg, sext (i16 ptrtoint ([0 x i8]* @global to i16) to i32)
+; PTR64_IDX64-NEXT:    --> ((-1 * (sext i16 (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i16) to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * (sext i16 (trunc i64 (ptrtoint [0 x i8]* @global to i64) to i16) to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR64_IDX64-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR64_IDX64-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR64_IDX64-NEXT:  Determining loop execution counts for: @sext_to_i32
+; PTR64_IDX64-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR64_IDX64-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR64_IDX64-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+;
+; PTR64_IDX32-LABEL: 'sext_to_i32'
+; PTR64_IDX32-NEXT:  Classifying expressions for: @sext_to_i32
+; PTR64_IDX32-NEXT:    %tmp = sub i32 %arg, sext (i16 ptrtoint ([0 x i8]* @global to i16) to i32)
+; PTR64_IDX32-NEXT:    --> ((-1 * (sext i16 ptrtoint ([0 x i8]* @global to i16) to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * (sext i16 ptrtoint ([0 x i8]* @global to i16) to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR64_IDX32-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR64_IDX32-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR64_IDX32-NEXT:  Determining loop execution counts for: @sext_to_i32
+; PTR64_IDX32-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR64_IDX32-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR64_IDX32-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+;
+; PTR16_IDX16-LABEL: 'sext_to_i32'
+; PTR16_IDX16-NEXT:  Classifying expressions for: @sext_to_i32
+; PTR16_IDX16-NEXT:    %tmp = sub i32 %arg, sext (i16 ptrtoint ([0 x i8]* @global to i16) to i32)
+; PTR16_IDX16-NEXT:    --> ((-1 * (sext i16 (ptrtoint [0 x i8]* @global to i16) to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * (sext i16 (ptrtoint [0 x i8]* @global to i16) to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR16_IDX16-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR16_IDX16-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR16_IDX16-NEXT:  Determining loop execution counts for: @sext_to_i32
+; PTR16_IDX16-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR16_IDX16-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR16_IDX16-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
+;
+; PTR16_IDX32-LABEL: 'sext_to_i32'
+; PTR16_IDX32-NEXT:  Classifying expressions for: @sext_to_i32
+; PTR16_IDX32-NEXT:    %tmp = sub i32 %arg, sext (i16 ptrtoint ([0 x i8]* @global to i16) to i32)
+; PTR16_IDX32-NEXT:    --> ((-1 * (sext i16 ptrtoint ([0 x i8]* @global to i16) to i32))<nsw> + %arg) U: full-set S: full-set Exits: ((-1 * (sext i16 ptrtoint ([0 x i8]* @global to i16) to i32))<nsw> + %arg) LoopDispositions: { %bb7: Invariant }
+; PTR16_IDX32-NEXT:    %tmp9 = select i1 %tmp8, i16 0, i16 1
+; PTR16_IDX32-NEXT:    --> %tmp9 U: [0,2) S: [-2,2) Exits: <<Unknown>> LoopDispositions: { %bb7: Variant }
+; PTR16_IDX32-NEXT:  Determining loop execution counts for: @sext_to_i32
+; PTR16_IDX32-NEXT:  Loop %bb7: Unpredictable backedge-taken count.
+; PTR16_IDX32-NEXT:  Loop %bb7: Unpredictable max backedge-taken count.
+; PTR16_IDX32-NEXT:  Loop %bb7: Unpredictable predicated backedge-taken count.
 ;
 bb:
   br label %bb7
 
 bb7:                                              ; preds = %bb7, %bb
   %tmp = sub i32 %arg, sext (i16 ptrtoint ([0 x i8]* @global to i16) to i32)
   %tmp8 = icmp eq i32 %tmp, %arg6
   %tmp9 = select i1 %tmp8, i16 0, i16 1
   call void @use16(i16 %tmp9)
   br i1 %tmp8, label %bb7, label %bb10
 
 bb10:                                             ; preds = %bb7
   ret void
 }
 
 define i64 @sext_like_noop(i32 %n) {
-; X64-LABEL: 'sext_like_noop'
-; X64-NEXT:  Classifying expressions for: @sext_like_noop
-; X64-NEXT:    %ii = sext i32 %i to i64
-; X64-NEXT:    --> (sext i32 {1,+,1}<nuw><%for.body> to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648) --> (sext i32 (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32)) to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
-; X64-NEXT:    %div = sdiv i64 55555, %ii
-; X64-NEXT:    --> %div U: full-set S: full-set --> sdiv (i64 55555, i64 sext (i32 add (i32 ptrtoint (i64 (i32)* @sext_like_noop to i32), i32 -1) to i64)) U: full-set S: full-set
-; X64-NEXT:    %i = phi i32 [ %inc, %for.body ], [ 1, %entry ]
-; X64-NEXT:    --> {1,+,1}<nuw><%for.body> U: [1,0) S: [1,0) Exits: (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32)) LoopDispositions: { %for.body: Computable }
-; X64-NEXT:    %inc = add nuw i32 %i, 1
-; X64-NEXT:    --> {2,+,1}<nuw><%for.body> U: [2,0) S: [2,0) Exits: ptrtoint (i64 (i32)* @sext_like_noop to i32) LoopDispositions: { %for.body: Computable }
-; X64-NEXT:  Determining loop execution counts for: @sext_like_noop
-; X64-NEXT:  Loop %for.body: backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))
-; X64-NEXT:  Loop %for.body: max backedge-taken count is -1
-; X64-NEXT:  Loop %for.body: Predicated backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))
-; X64-NEXT:   Predicates:
-; X64:       Loop %for.body: Trip multiple is 1
-;
-; X32-LABEL: 'sext_like_noop'
-; X32-NEXT:  Classifying expressions for: @sext_like_noop
-; X32-NEXT:    %ii = sext i32 %i to i64
-; X32-NEXT:    --> (sext i32 {1,+,1}<nuw><%for.body> to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648) --> (sext i32 (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32)) to i64) U: [-1,65535) S: [-65537,65535)
-; X32-NEXT:    %div = sdiv i64 55555, %ii
-; X32-NEXT:    --> %div U: full-set S: full-set --> sdiv (i64 55555, i64 sext (i32 add (i32 ptrtoint (i64 (i32)* @sext_like_noop to i32), i32 -1) to i64)) U: full-set S: full-set
-; X32-NEXT:    %i = phi i32 [ %inc, %for.body ], [ 1, %entry ]
-; X32-NEXT:    --> {1,+,1}<nuw><%for.body> U: [1,0) S: [1,0) Exits: (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32))<nsw> LoopDispositions: { %for.body: Computable }
-; X32-NEXT:    %inc = add nuw i32 %i, 1
-; X32-NEXT:    --> {2,+,1}<nuw><%for.body> U: [2,0) S: [2,0) Exits: ptrtoint (i64 (i32)* @sext_like_noop to i32) LoopDispositions: { %for.body: Computable }
-; X32-NEXT:  Determining loop execution counts for: @sext_like_noop
-; X32-NEXT:  Loop %for.body: backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))<nsw>
-; X32-NEXT:  Loop %for.body: max backedge-taken count is -1
-; X32-NEXT:  Loop %for.body: Predicated backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))<nsw>
-; X32-NEXT:   Predicates:
-; X32:       Loop %for.body: Trip multiple is 1
+; PTR64_IDX64-LABEL: 'sext_like_noop'
+; PTR64_IDX64-NEXT:  Classifying expressions for: @sext_like_noop
+; PTR64_IDX64-NEXT:    %ii = sext i32 %i to i64
+; PTR64_IDX64-NEXT:    --> (sext i32 {1,+,1}<nuw><%for.body> to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648) --> (sext i32 (-1 + (trunc i64 (ptrtoint i64 (i32)* @sext_like_noop to i64) to i32)) to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
+; PTR64_IDX64-NEXT:    %div = sdiv i64 55555, %ii
+; PTR64_IDX64-NEXT:    --> %div U: full-set S: full-set --> sdiv (i64 55555, i64 sext (i32 add (i32 ptrtoint (i64 (i32)* @sext_like_noop to i32), i32 -1) to i64)) U: full-set S: full-set
+; PTR64_IDX64-NEXT:    %i = phi i32 [ %inc, %for.body ], [ 1, %entry ]
+; PTR64_IDX64-NEXT:    --> {1,+,1}<nuw><%for.body> U: [1,0) S: [1,0) Exits: (-1 + (trunc i64 (ptrtoint i64 (i32)* @sext_like_noop to i64) to i32)) LoopDispositions: { %for.body: Computable }
+; PTR64_IDX64-NEXT:    %inc = add nuw i32 %i, 1
+; PTR64_IDX64-NEXT:    --> {2,+,1}<nuw><%for.body> U: [2,0) S: [2,0) Exits: (trunc i64 (ptrtoint i64 (i32)* @sext_like_noop to i64) to i32) LoopDispositions: { %for.body: Computable }
+; PTR64_IDX64-NEXT:  Determining loop execution counts for: @sext_like_noop
+; PTR64_IDX64-NEXT:  Loop %for.body: backedge-taken count is (-2 + (trunc i64 (ptrtoint i64 (i32)* @sext_like_noop to i64) to i32))
+; PTR64_IDX64-NEXT:  Loop %for.body: max backedge-taken count is -1
+; PTR64_IDX64-NEXT:  Loop %for.body: Predicated backedge-taken count is (-2 + (trunc i64 (ptrtoint i64 (i32)* @sext_like_noop to i64) to i32))
+; PTR64_IDX64-NEXT:   Predicates:
+; PTR64_IDX64:       Loop %for.body: Trip multiple is 1
+;
+; PTR64_IDX32-LABEL: 'sext_like_noop'
+; PTR64_IDX32-NEXT:  Classifying expressions for: @sext_like_noop
+; PTR64_IDX32-NEXT:    %ii = sext i32 %i to i64
+; PTR64_IDX32-NEXT:    --> (sext i32 {1,+,1}<nuw><%for.body> to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648) --> (sext i32 (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32)) to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
+; PTR64_IDX32-NEXT:    %div = sdiv i64 55555, %ii
+; PTR64_IDX32-NEXT:    --> %div U: full-set S: full-set --> sdiv (i64 55555, i64 sext (i32 add (i32 ptrtoint (i64 (i32)* @sext_like_noop to i32), i32 -1) to i64)) U: full-set S: full-set
+; PTR64_IDX32-NEXT:    %i = phi i32 [ %inc, %for.body ], [ 1, %entry ]
+; PTR64_IDX32-NEXT:    --> {1,+,1}<nuw><%for.body> U: [1,0) S: [1,0) Exits: (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32)) LoopDispositions: { %for.body: Computable }
+; PTR64_IDX32-NEXT:    %inc = add nuw i32 %i, 1
+; PTR64_IDX32-NEXT:    --> {2,+,1}<nuw><%for.body> U: [2,0) S: [2,0) Exits: ptrtoint (i64 (i32)* @sext_like_noop to i32) LoopDispositions: { %for.body: Computable }
+; PTR64_IDX32-NEXT:  Determining loop execution counts for: @sext_like_noop
+; PTR64_IDX32-NEXT:  Loop %for.body: backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))
+; PTR64_IDX32-NEXT:  Loop %for.body: max backedge-taken count is -1
+; PTR64_IDX32-NEXT:  Loop %for.body: Predicated backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))
+; PTR64_IDX32-NEXT:   Predicates:
+; PTR64_IDX32:       Loop %for.body: Trip multiple is 1
+;
+; PTR16_IDX16-LABEL: 'sext_like_noop'
+; PTR16_IDX16-NEXT:  Classifying expressions for: @sext_like_noop
+; PTR16_IDX16-NEXT:    %ii = sext i32 %i to i64
+; PTR16_IDX16-NEXT:    --> (sext i32 {1,+,1}<nuw><%for.body> to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648) --> (sext i32 (-1 + (zext i16 (ptrtoint i64 (i32)* @sext_like_noop to i16) to i32)) to i64) U: [-1,65535) S: [-1,65535)
+; PTR16_IDX16-NEXT:    %div = sdiv i64 55555, %ii
+; PTR16_IDX16-NEXT:    --> %div U: full-set S: full-set --> sdiv (i64 55555, i64 sext (i32 add (i32 zext (i16 ptrtoint (i64 (i32)* @sext_like_noop to i16) to i32), i32 -1) to i64)) U: full-set S: full-set
+; PTR16_IDX16-NEXT:    %i = phi i32 [ %inc, %for.body ], [ 1, %entry ]
+; PTR16_IDX16-NEXT:    --> {1,+,1}<nuw><%for.body> U: [1,0) S: [1,0) Exits: (-1 + (zext i16 (ptrtoint i64 (i32)* @sext_like_noop to i16) to i32))<nsw> LoopDispositions: { %for.body: Computable }
+; PTR16_IDX16-NEXT:    %inc = add nuw i32 %i, 1
+; PTR16_IDX16-NEXT:    --> {2,+,1}<nuw><%for.body> U: [2,0) S: [2,0) Exits: (zext i16 (ptrtoint i64 (i32)* @sext_like_noop to i16) to i32) LoopDispositions: { %for.body: Computable }
+; PTR16_IDX16-NEXT:  Determining loop execution counts for: @sext_like_noop
+; PTR16_IDX16-NEXT:  Loop %for.body: backedge-taken count is (-2 + (zext i16 (ptrtoint i64 (i32)* @sext_like_noop to i16) to i32))<nsw>
+; PTR16_IDX16-NEXT:  Loop %for.body: max backedge-taken count is -1
+; PTR16_IDX16-NEXT:  Loop %for.body: Predicated backedge-taken count is (-2 + (zext i16 (ptrtoint i64 (i32)* @sext_like_noop to i16) to i32))<nsw>
+; PTR16_IDX16-NEXT:   Predicates:
+; PTR16_IDX16:       Loop %for.body: Trip multiple is 1
+;
+; PTR16_IDX32-LABEL: 'sext_like_noop'
+; PTR16_IDX32-NEXT:  Classifying expressions for: @sext_like_noop
+; PTR16_IDX32-NEXT:    %ii = sext i32 %i to i64
+; PTR16_IDX32-NEXT:    --> (sext i32 {1,+,1}<nuw><%for.body> to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648) --> (sext i32 (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32)) to i64) U: [-1,65535) S: [-65537,65535)
+; PTR16_IDX32-NEXT:    %div = sdiv i64 55555, %ii
+; PTR16_IDX32-NEXT:    --> %div U: full-set S: full-set --> sdiv (i64 55555, i64 sext (i32 add (i32 ptrtoint (i64 (i32)* @sext_like_noop to i32), i32 -1) to i64)) U: full-set S: full-set
+; PTR16_IDX32-NEXT:    %i = phi i32 [ %inc, %for.body ], [ 1, %entry ]
+; PTR16_IDX32-NEXT:    --> {1,+,1}<nuw><%for.body> U: [1,0) S: [1,0) Exits: (-1 + ptrtoint (i64 (i32)* @sext_like_noop to i32))<nsw> LoopDispositions: { %for.body: Computable }
+; PTR16_IDX32-NEXT:    %inc = add nuw i32 %i, 1
+; PTR16_IDX32-NEXT:    --> {2,+,1}<nuw><%for.body> U: [2,0) S: [2,0) Exits: ptrtoint (i64 (i32)* @sext_like_noop to i32) LoopDispositions: { %for.body: Computable }
+; PTR16_IDX32-NEXT:  Determining loop execution counts for: @sext_like_noop
+; PTR16_IDX32-NEXT:  Loop %for.body: backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))<nsw>
+; PTR16_IDX32-NEXT:  Loop %for.body: max backedge-taken count is -1
+; PTR16_IDX32-NEXT:  Loop %for.body: Predicated backedge-taken count is (-2 + ptrtoint (i64 (i32)* @sext_like_noop to i32))<nsw>
+; PTR16_IDX32-NEXT:   Predicates:
+; PTR16_IDX32:       Loop %for.body: Trip multiple is 1
 ;
 entry:
   %cmp6 = icmp sgt i32 %n, 1
   br label %for.body
 
 for.cond.cleanup:
   %ii = sext i32 %i to i64
   %div = sdiv i64 55555, %ii

llvm/test/Analysis/ScalarEvolution/ptrtoint.ll

 
 declare void @useptr(i8*)
 
 ; Simple ptrtoint of an argument, with casts to potentially different bit widths.
 define void @ptrtoint(i8* %in, i64* %out0, i32* %out1, i16* %out2, i128* %out3) {
 ; X64-LABEL: 'ptrtoint'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint
 ; X64-NEXT:    %p0 = ptrtoint i8* %in to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* %in to i64) U: full-set S: full-set
 ; X64-NEXT:    %p1 = ptrtoint i8* %in to i32
-; X64-NEXT:    --> %p1 U: full-set S: full-set
+; X64-NEXT:    --> (trunc i64 (ptrtoint i8* %in to i64) to i32) U: full-set S: full-set
 ; X64-NEXT:    %p2 = ptrtoint i8* %in to i16
-; X64-NEXT:    --> %p2 U: full-set S: full-set
+; X64-NEXT:    --> (trunc i64 (ptrtoint i8* %in to i64) to i16) U: full-set S: full-set
 ; X64-NEXT:    %p3 = ptrtoint i8* %in to i128
-; X64-NEXT:    --> %p3 U: [0,18446744073709551616) S: [-18446744073709551616,18446744073709551616)
+; X64-NEXT:    --> (zext i64 (ptrtoint i8* %in to i64) to i128) U: [0,18446744073709551616) S: [0,18446744073709551616)
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint
 ;
 ; X32-LABEL: 'ptrtoint'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint
 ; X32-NEXT:    %p0 = ptrtoint i8* %in to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* %in to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:    %p1 = ptrtoint i8* %in to i32
-; X32-NEXT:    --> %p1 U: full-set S: full-set
+; X32-NEXT:    --> (ptrtoint i8* %in to i32) U: full-set S: full-set
 ; X32-NEXT:    %p2 = ptrtoint i8* %in to i16
-; X32-NEXT:    --> %p2 U: full-set S: full-set
+; X32-NEXT:    --> (trunc i32 (ptrtoint i8* %in to i32) to i16) U: full-set S: full-set
 ; X32-NEXT:    %p3 = ptrtoint i8* %in to i128
-; X32-NEXT:    --> %p3 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* %in to i32) to i128) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint
 ;
   %p0 = ptrtoint i8* %in to i64
   %p1 = ptrtoint i8* %in to i32
   %p2 = ptrtoint i8* %in to i16
   %p3 = ptrtoint i8* %in to i128
   store i64  %p0, i64*  %out0
   store i32  %p1, i32*  %out1
   store i16  %p2, i16*  %out2
   store i128 %p3, i128* %out3
   ret void
 }
 
 ; Same, but from non-zero/non-default address space.
 define void @ptrtoint_as1(i8 addrspace(1)* %in, i64* %out0, i32* %out1, i16* %out2, i128* %out3) {
 ; X64-LABEL: 'ptrtoint_as1'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_as1
 ; X64-NEXT:    %p0 = ptrtoint i8 addrspace(1)* %in to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8 addrspace(1)* %in to i64) U: full-set S: full-set
 ; X64-NEXT:    %p1 = ptrtoint i8 addrspace(1)* %in to i32
-; X64-NEXT:    --> %p1 U: full-set S: full-set
+; X64-NEXT:    --> (trunc i64 (ptrtoint i8 addrspace(1)* %in to i64) to i32) U: full-set S: full-set
 ; X64-NEXT:    %p2 = ptrtoint i8 addrspace(1)* %in to i16
-; X64-NEXT:    --> %p2 U: full-set S: full-set
+; X64-NEXT:    --> (trunc i64 (ptrtoint i8 addrspace(1)* %in to i64) to i16) U: full-set S: full-set
 ; X64-NEXT:    %p3 = ptrtoint i8 addrspace(1)* %in to i128
-; X64-NEXT:    --> %p3 U: [0,18446744073709551616) S: [-18446744073709551616,18446744073709551616)
+; X64-NEXT:    --> (zext i64 (ptrtoint i8 addrspace(1)* %in to i64) to i128) U: [0,18446744073709551616) S: [0,18446744073709551616)
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_as1
 ;
 ; X32-LABEL: 'ptrtoint_as1'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_as1
 ; X32-NEXT:    %p0 = ptrtoint i8 addrspace(1)* %in to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8 addrspace(1)* %in to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:    %p1 = ptrtoint i8 addrspace(1)* %in to i32
-; X32-NEXT:    --> %p1 U: full-set S: full-set
+; X32-NEXT:    --> (ptrtoint i8 addrspace(1)* %in to i32) U: full-set S: full-set
 ; X32-NEXT:    %p2 = ptrtoint i8 addrspace(1)* %in to i16
-; X32-NEXT:    --> %p2 U: full-set S: full-set
+; X32-NEXT:    --> (trunc i32 (ptrtoint i8 addrspace(1)* %in to i32) to i16) U: full-set S: full-set
 ; X32-NEXT:    %p3 = ptrtoint i8 addrspace(1)* %in to i128
-; X32-NEXT:    --> %p3 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8 addrspace(1)* %in to i32) to i128) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_as1
 ;
   %p0 = ptrtoint i8 addrspace(1)* %in to i64
   %p1 = ptrtoint i8 addrspace(1)* %in to i32
   %p2 = ptrtoint i8 addrspace(1)* %in to i16
   %p3 = ptrtoint i8 addrspace(1)* %in to i128
   store i64  %p0, i64*  %out0
   store i32  %p1, i32*  %out1
   store i16  %p2, i16*  %out2
   store i128 %p3, i128* %out3
   ret void
 }
 
 ; Likewise, ptrtoint of a bitcast is fine, we simply skip it.
 define void @ptrtoint_of_bitcast(i8* %in, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_bitcast'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_bitcast
 ; X64-NEXT:    %in_casted = bitcast i8* %in to float*
 ; X64-NEXT:    --> %in U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint float* %in_casted to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* %in to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_bitcast
 ;
 ; X32-LABEL: 'ptrtoint_of_bitcast'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_bitcast
 ; X32-NEXT:    %in_casted = bitcast i8* %in to float*
 ; X32-NEXT:    --> %in U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint float* %in_casted to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* %in to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_bitcast
 ;
   %in_casted = bitcast i8* %in to float*
   %p0 = ptrtoint float* %in_casted to i64
   store i64 %p0, i64* %out0
   ret void
 }
 
 ; addrspacecast is fine too, but We don't model addrspacecast, so we stop there.
 define void @ptrtoint_of_addrspacecast(i8* %in, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_addrspacecast'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_addrspacecast
 ; X64-NEXT:    %in_casted = addrspacecast i8* %in to i8 addrspace(1)*
 ; X64-NEXT:    --> %in_casted U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint i8 addrspace(1)* %in_casted to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8 addrspace(1)* %in_casted to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_addrspacecast
 ;
 ; X32-LABEL: 'ptrtoint_of_addrspacecast'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_addrspacecast
 ; X32-NEXT:    %in_casted = addrspacecast i8* %in to i8 addrspace(1)*
 ; X32-NEXT:    --> %in_casted U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint i8 addrspace(1)* %in_casted to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8 addrspace(1)* %in_casted to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_addrspacecast
 ;
   %in_casted = addrspacecast i8* %in to i8 addrspace(1)*
   %p0 = ptrtoint i8 addrspace(1)* %in_casted to i64
   store i64 %p0, i64* %out0
   ret void
 }
 
 ; inttoptr is fine too, but we don't (and can't) model inttoptr, so we stop there.
 define void @ptrtoint_of_inttoptr(i64 %in, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_inttoptr'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_inttoptr
 ; X64-NEXT:    %in_casted = inttoptr i64 %in to i8*
 ; X64-NEXT:    --> %in_casted U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint i8* %in_casted to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* %in_casted to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_inttoptr
 ;
 ; X32-LABEL: 'ptrtoint_of_inttoptr'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_inttoptr
 ; X32-NEXT:    %in_casted = inttoptr i64 %in to i8*
 ; X32-NEXT:    --> %in_casted U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint i8* %in_casted to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* %in_casted to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_inttoptr
 ;
   %in_casted = inttoptr i64 %in to i8*
   %p0 = ptrtoint i8* %in_casted to i64
   store i64 %p0, i64* %out0
   ret void
 }
 
 ; A constant pointer is fine
 define void @ptrtoint_of_nullptr(i64* %out0) {
 ; ALL-LABEL: 'ptrtoint_of_nullptr'
 ; ALL-NEXT:  Classifying expressions for: @ptrtoint_of_nullptr
 ; ALL-NEXT:    %p0 = ptrtoint i8* null to i64
-; ALL-NEXT:    --> %p0 U: [0,1) S: [-1,1)
+; ALL-NEXT:    --> 0 U: [0,1) S: [0,1)
 ; ALL-NEXT:  Determining loop execution counts for: @ptrtoint_of_nullptr
 ;
   %p0 = ptrtoint i8* null to i64
   store i64 %p0, i64* %out0
   ret void
 }
 
 ; A constant inttoptr argument of an ptrtoint is still bad.
 define void @ptrtoint_of_constantexpr_inttoptr(i64* %out0) {
-; ALL-LABEL: 'ptrtoint_of_constantexpr_inttoptr'
-; ALL-NEXT:  Classifying expressions for: @ptrtoint_of_constantexpr_inttoptr
-; ALL-NEXT:    %p0 = ptrtoint i8* inttoptr (i64 42 to i8*) to i64
-; ALL-NEXT:    --> %p0 U: [42,43) S: [-64,64)
-; ALL-NEXT:  Determining loop execution counts for: @ptrtoint_of_constantexpr_inttoptr
+; X64-LABEL: 'ptrtoint_of_constantexpr_inttoptr'
+; X64-NEXT:  Classifying expressions for: @ptrtoint_of_constantexpr_inttoptr
+; X64-NEXT:    %p0 = ptrtoint i8* inttoptr (i64 42 to i8*) to i64
+; X64-NEXT:    --> (ptrtoint i8* inttoptr (i64 42 to i8*) to i64) U: [42,43) S: [-64,64)
+; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_constantexpr_inttoptr
+;
+; X32-LABEL: 'ptrtoint_of_constantexpr_inttoptr'
+; X32-NEXT:  Classifying expressions for: @ptrtoint_of_constantexpr_inttoptr
+; X32-NEXT:    %p0 = ptrtoint i8* inttoptr (i64 42 to i8*) to i64
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* inttoptr (i64 42 to i8*) to i32) to i64) U: [42,43) S: [0,4294967296)
+; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_constantexpr_inttoptr
 ;
   %p0 = ptrtoint i8* inttoptr (i64 42 to i8*) to i64
   store i64 %p0, i64* %out0
   ret void
 }
 
 ; ptrtoint of GEP is fine.
 define void @ptrtoint_of_gep(i8* %in, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_gep'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_gep
 ; X64-NEXT:    %in_adj = getelementptr inbounds i8, i8* %in, i64 42
 ; X64-NEXT:    --> (42 + %in)<nsw> U: [-9223372036854775766,-9223372036854775808) S: [-9223372036854775766,-9223372036854775808)
 ; X64-NEXT:    %p0 = ptrtoint i8* %in_adj to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* (42 + %in)<nsw> to i64) U: [-9223372036854775766,-9223372036854775808) S: [-9223372036854775766,-9223372036854775808)
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_gep
 ;
 ; X32-LABEL: 'ptrtoint_of_gep'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_gep
 ; X32-NEXT:    %in_adj = getelementptr inbounds i8, i8* %in, i64 42
 ; X32-NEXT:    --> (42 + %in)<nsw> U: [-2147483606,-2147483648) S: [-2147483606,-2147483648)
 ; X32-NEXT:    %p0 = ptrtoint i8* %in_adj to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* (42 + %in)<nsw> to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_gep
 ;
   %in_adj = getelementptr inbounds i8, i8* %in, i64 42
   %p0 = ptrtoint i8* %in_adj to i64
   store i64  %p0, i64*  %out0
   ret void
 }
 
 ; It seems, we can't get ptrtoint of mul/udiv, or at least it's hard to come up with a test case.
 
 ; ptrtoint of AddRec
 define void @ptrtoint_of_addrec(i32* %in, i32 %count) {
 ; X64-LABEL: 'ptrtoint_of_addrec'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_addrec
 ; X64-NEXT:    %i3 = zext i32 %count to i64
 ; X64-NEXT:    --> (zext i32 %count to i64) U: [0,4294967296) S: [0,4294967296)
 ; X64-NEXT:    %i6 = phi i64 [ 0, %entry ], [ %i9, %loop ]
 ; X64-NEXT:    --> {0,+,1}<nuw><nsw><%loop> U: [0,-9223372036854775808) S: [0,-9223372036854775808) Exits: (-1 + (zext i32 %count to i64))<nsw> LoopDispositions: { %loop: Computable }
 ; X64-NEXT:    %i7 = getelementptr inbounds i32, i32* %in, i64 %i6
 ; X64-NEXT:    --> {%in,+,4}<nsw><%loop> U: full-set S: full-set Exits: (-4 + (4 * (zext i32 %count to i64))<nuw><nsw> + %in) LoopDispositions: { %loop: Computable }
 ; X64-NEXT:    %i8 = ptrtoint i32* %i7 to i64
-; X64-NEXT:    --> %i8 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %loop: Variant }
+; X64-NEXT:    --> (ptrtoint i32* {%in,+,4}<nsw><%loop> to i64) U: full-set S: full-set Exits: (ptrtoint i32* (-4 + (4 * (zext i32 %count to i64))<nuw><nsw> + %in) to i64) LoopDispositions: { %loop: Computable }
 ; X64-NEXT:    %i9 = add nuw nsw i64 %i6, 1
 ; X64-NEXT:    --> {1,+,1}<nuw><%loop> U: [1,0) S: [1,0) Exits: (zext i32 %count to i64) LoopDispositions: { %loop: Computable }
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_addrec
 ; X64-NEXT:  Loop %loop: backedge-taken count is (-1 + (zext i32 %count to i64))<nsw>
 ; X64-NEXT:  Loop %loop: max backedge-taken count is -1
 ; X64-NEXT:  Loop %loop: Predicated backedge-taken count is (-1 + (zext i32 %count to i64))<nsw>
 ; X64-NEXT:   Predicates:
 ; X64:       Loop %loop: Trip multiple is 1
 ;
 ; X32-LABEL: 'ptrtoint_of_addrec'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_addrec
 ; X32-NEXT:    %i3 = zext i32 %count to i64
 ; X32-NEXT:    --> (zext i32 %count to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:    %i6 = phi i64 [ 0, %entry ], [ %i9, %loop ]
 ; X32-NEXT:    --> {0,+,1}<nuw><nsw><%loop> U: [0,-9223372036854775808) S: [0,-9223372036854775808) Exits: (-1 + (zext i32 %count to i64))<nsw> LoopDispositions: { %loop: Computable }
 ; X32-NEXT:    %i7 = getelementptr inbounds i32, i32* %in, i64 %i6
 ; X32-NEXT:    --> {%in,+,4}<%loop> U: full-set S: full-set Exits: (-4 + (4 * %count) + %in) LoopDispositions: { %loop: Computable }
 ; X32-NEXT:    %i8 = ptrtoint i32* %i7 to i64
-; X32-NEXT:    --> %i8 U: [0,4294967296) S: [-4294967296,4294967296) Exits: <<Unknown>> LoopDispositions: { %loop: Variant }
+; X32-NEXT:    --> (zext i32 (ptrtoint i32* {%in,+,4}<%loop> to i32) to i64) U: [0,4294967296) S: [0,4294967296) Exits: (zext i32 (ptrtoint i32* (-4 + (4 * %count) + %in) to i32) to i64) LoopDispositions: { %loop: Computable }
 ; X32-NEXT:    %i9 = add nuw nsw i64 %i6, 1
 ; X32-NEXT:    --> {1,+,1}<nuw><%loop> U: [1,0) S: [1,0) Exits: (zext i32 %count to i64) LoopDispositions: { %loop: Computable }
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_addrec
 ; X32-NEXT:  Loop %loop: backedge-taken count is (-1 + (zext i32 %count to i64))<nsw>
 ; X32-NEXT:  Loop %loop: max backedge-taken count is -1
 ; X32-NEXT:  Loop %loop: Predicated backedge-taken count is (-1 + (zext i32 %count to i64))<nsw>
 ; X32-NEXT:   Predicates:
 ; X32:       Loop %loop: Trip multiple is 1

 
 ; ptrtoint of UMax
 define void @ptrtoint_of_umax(i8* %in0, i8* %in1, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_umax'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_umax
 ; X64-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X64-NEXT:    --> (%in0 umax %in1) U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* (%in0 umax %in1) to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_umax
 ;
 ; X32-LABEL: 'ptrtoint_of_umax'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_umax
 ; X32-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X32-NEXT:    --> (%in0 umax %in1) U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* (%in0 umax %in1) to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_umax
 ;
   %c = icmp uge i8* %in0, %in1
   %s = select i1 %c, i8* %in0, i8* %in1
   %p0 = ptrtoint i8* %s to i64
   store i64  %p0, i64*  %out0
   ret void
 }
 ; ptrtoint of SMax
 define void @ptrtoint_of_smax(i8* %in0, i8* %in1, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_smax'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_smax
 ; X64-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X64-NEXT:    --> (%in0 smax %in1) U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* (%in0 smax %in1) to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_smax
 ;
 ; X32-LABEL: 'ptrtoint_of_smax'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_smax
 ; X32-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X32-NEXT:    --> (%in0 smax %in1) U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* (%in0 smax %in1) to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_smax
 ;
   %c = icmp sge i8* %in0, %in1
   %s = select i1 %c, i8* %in0, i8* %in1
   %p0 = ptrtoint i8* %s to i64
   store i64  %p0, i64*  %out0
   ret void
 }
 ; ptrtoint of UMin
 define void @ptrtoint_of_umin(i8* %in0, i8* %in1, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_umin'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_umin
 ; X64-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X64-NEXT:    --> (%in0 umin %in1) U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* (%in0 umin %in1) to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_umin
 ;
 ; X32-LABEL: 'ptrtoint_of_umin'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_umin
 ; X32-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X32-NEXT:    --> (%in0 umin %in1) U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* (%in0 umin %in1) to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_umin
 ;
   %c = icmp ule i8* %in0, %in1
   %s = select i1 %c, i8* %in0, i8* %in1
   %p0 = ptrtoint i8* %s to i64
   store i64  %p0, i64*  %out0
   ret void
 }
 ; ptrtoint of SMin
 define void @ptrtoint_of_smin(i8* %in0, i8* %in1, i64* %out0) {
 ; X64-LABEL: 'ptrtoint_of_smin'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_smin
 ; X64-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X64-NEXT:    --> (%in0 smin %in1) U: full-set S: full-set
 ; X64-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X64-NEXT:    --> %p0 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* (%in0 smin %in1) to i64) U: full-set S: full-set
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_smin
 ;
 ; X32-LABEL: 'ptrtoint_of_smin'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_smin
 ; X32-NEXT:    %s = select i1 %c, i8* %in0, i8* %in1
 ; X32-NEXT:    --> (%in0 smin %in1) U: full-set S: full-set
 ; X32-NEXT:    %p0 = ptrtoint i8* %s to i64
-; X32-NEXT:    --> %p0 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* (%in0 smin %in1) to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_smin
 ;
   %c = icmp sle i8* %in0, %in1
   %s = select i1 %c, i8* %in0, i8* %in1
   %p0 = ptrtoint i8* %s to i64
   store i64  %p0, i64*  %out0
   ret void
 }
 
 ; void pr46786_c26_char(char* start, char *end, char *other) {
 ;   for (char* cur = start; cur != end; ++cur)
 ;     other[cur - start] += *cur;
 ; }
 define void @pr46786_c26_char(i8* %arg, i8* %arg1, i8* %arg2) {
 ; X64-LABEL: 'pr46786_c26_char'
 ; X64-NEXT:  Classifying expressions for: @pr46786_c26_char
 ; X64-NEXT:    %i4 = ptrtoint i8* %arg to i64
-; X64-NEXT:    --> %i4 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* %arg to i64) U: full-set S: full-set
 ; X64-NEXT:    %i7 = phi i8* [ %arg, %bb3 ], [ %i14, %bb6 ]
 ; X64-NEXT:    --> {%arg,+,1}<nuw><%bb6> U: full-set S: full-set Exits: (-1 + %arg1) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i8 = load i8, i8* %i7, align 1
 ; X64-NEXT:    --> %i8 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X64-NEXT:    %i9 = ptrtoint i8* %i7 to i64
-; X64-NEXT:    --> %i9 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> (ptrtoint i8* {%arg,+,1}<nuw><%bb6> to i64) U: full-set S: full-set Exits: (ptrtoint i8* (-1 + %arg1) to i64) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i10 = sub i64 %i9, %i4
-; X64-NEXT:    --> ((-1 * %i4) + %i9) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> ((-1 * (ptrtoint i8* %arg to i64)) + (ptrtoint i8* {%arg,+,1}<nuw><%bb6> to i64)) U: full-set S: full-set Exits: ((-1 * (ptrtoint i8* %arg to i64)) + (ptrtoint i8* (-1 + %arg1) to i64)) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i11 = getelementptr inbounds i8, i8* %arg2, i64 %i10
-; X64-NEXT:    --> ((-1 * %i4) + %i9 + %arg2) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> ((-1 * (ptrtoint i8* %arg to i64)) + (ptrtoint i8* {%arg,+,1}<nuw><%bb6> to i64) + %arg2) U: full-set S: full-set Exits: ((-1 * (ptrtoint i8* %arg to i64)) + (ptrtoint i8* (-1 + %arg1) to i64) + %arg2) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i12 = load i8, i8* %i11, align 1
 ; X64-NEXT:    --> %i12 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X64-NEXT:    %i13 = add i8 %i12, %i8
 ; X64-NEXT:    --> (%i12 + %i8) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X64-NEXT:    %i14 = getelementptr inbounds i8, i8* %i7, i64 1
 ; X64-NEXT:    --> {(1 + %arg)<nsw>,+,1}<nuw><%bb6> U: full-set S: full-set Exits: %arg1 LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:  Determining loop execution counts for: @pr46786_c26_char
 ; X64-NEXT:  Loop %bb6: backedge-taken count is (-1 + (-1 * %arg) + %arg1)
 ; X64-NEXT:  Loop %bb6: max backedge-taken count is -2
 ; X64-NEXT:  Loop %bb6: Predicated backedge-taken count is (-1 + (-1 * %arg) + %arg1)
 ; X64-NEXT:   Predicates:
 ; X64:       Loop %bb6: Trip multiple is 1
 ;
 ; X32-LABEL: 'pr46786_c26_char'
 ; X32-NEXT:  Classifying expressions for: @pr46786_c26_char
 ; X32-NEXT:    %i4 = ptrtoint i8* %arg to i64
-; X32-NEXT:    --> %i4 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* %arg to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:    %i7 = phi i8* [ %arg, %bb3 ], [ %i14, %bb6 ]
 ; X32-NEXT:    --> {%arg,+,1}<nuw><%bb6> U: full-set S: full-set Exits: (-1 + %arg1) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i8 = load i8, i8* %i7, align 1
 ; X32-NEXT:    --> %i8 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X32-NEXT:    %i9 = ptrtoint i8* %i7 to i64
-; X32-NEXT:    --> %i9 U: [0,4294967296) S: [-4294967296,4294967296) Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* {%arg,+,1}<nuw><%bb6> to i32) to i64) U: [0,4294967296) S: [0,4294967296) Exits: (zext i32 (ptrtoint i8* (-1 + %arg1) to i32) to i64) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i10 = sub i64 %i9, %i4
-; X32-NEXT:    --> ((-1 * %i4)<nsw> + %i9) U: [-4294967295,4294967296) S: [-8589934591,8589934592) Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> ((zext i32 (ptrtoint i8* {%arg,+,1}<nuw><%bb6> to i32) to i64) + (-1 * (zext i32 (ptrtoint i8* %arg to i32) to i64))<nsw>) U: [-4294967295,4294967296) S: [-4294967295,4294967296) Exits: ((zext i32 (ptrtoint i8* (-1 + %arg1) to i32) to i64) + (-1 * (zext i32 (ptrtoint i8* %arg to i32) to i64))<nsw>) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i11 = getelementptr inbounds i8, i8* %arg2, i64 %i10
-; X32-NEXT:    --> ((trunc i64 %i9 to i32) + (-1 * (trunc i64 %i4 to i32)) + %arg2) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> ((-1 * (ptrtoint i8* %arg to i32)) + (ptrtoint i8* {%arg,+,1}<nuw><%bb6> to i32) + %arg2) U: full-set S: full-set Exits: ((-1 * (ptrtoint i8* %arg to i32)) + (ptrtoint i8* (-1 + %arg1) to i32) + %arg2) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i12 = load i8, i8* %i11, align 1
 ; X32-NEXT:    --> %i12 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X32-NEXT:    %i13 = add i8 %i12, %i8
 ; X32-NEXT:    --> (%i12 + %i8) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X32-NEXT:    %i14 = getelementptr inbounds i8, i8* %i7, i64 1
 ; X32-NEXT:    --> {(1 + %arg)<nsw>,+,1}<nuw><%bb6> U: full-set S: full-set Exits: %arg1 LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:  Determining loop execution counts for: @pr46786_c26_char
 ; X32-NEXT:  Loop %bb6: backedge-taken count is (-1 + (-1 * %arg) + %arg1)

 ;     other[cur - start] += *cur;
 ; }
 ;
 ; FIXME: 4 * (%i10 EXACT/s 4) is just %i10
 define void @pr46786_c26_int(i32* %arg, i32* %arg1, i32* %arg2) {
 ; X64-LABEL: 'pr46786_c26_int'
 ; X64-NEXT:  Classifying expressions for: @pr46786_c26_int
 ; X64-NEXT:    %i4 = ptrtoint i32* %arg to i64
-; X64-NEXT:    --> %i4 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i32* %arg to i64) U: full-set S: full-set
 ; X64-NEXT:    %i7 = phi i32* [ %arg, %bb3 ], [ %i15, %bb6 ]
 ; X64-NEXT:    --> {%arg,+,4}<nuw><%bb6> U: full-set S: full-set Exits: ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i8 = load i32, i32* %i7, align 4
 ; X64-NEXT:    --> %i8 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X64-NEXT:    %i9 = ptrtoint i32* %i7 to i64
-; X64-NEXT:    --> %i9 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64) U: full-set S: full-set Exits: (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i10 = sub i64 %i9, %i4
-; X64-NEXT:    --> ((-1 * %i4) + %i9) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64)) U: full-set S: full-set Exits: ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64)) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i11 = ashr exact i64 %i10, 2
-; X64-NEXT:    --> (((((-1 * %i4) + %i9) smax ((-1 * %i9) + %i4)) /u 4) * (1 smin (-1 smax ((-1 * %i4) + %i9))))<nsw> U: [-4611686018427387903,4611686018427387904) S: [-4611686018427387903,4611686018427387904) Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> (((((-1 * (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64)) + (ptrtoint i32* %arg to i64)) smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64))) /u 4) * (1 smin (-1 smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64)))))<nsw> U: [-4611686018427387903,4611686018427387904) S: [-4611686018427387903,4611686018427387904) Exits: (((((-1 * (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64)) + (ptrtoint i32* %arg to i64)) smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64))) /u 4) * (1 smin (-1 smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64)))))<nsw> LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i12 = getelementptr inbounds i32, i32* %arg2, i64 %i11
-; X64-NEXT:    --> ((4 * ((((-1 * %i4) + %i9) smax ((-1 * %i9) + %i4)) /u 4) * (1 smin (-1 smax ((-1 * %i4) + %i9)))) + %arg2)<nsw> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X64-NEXT:    --> ((4 * ((((-1 * (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64)) + (ptrtoint i32* %arg to i64)) smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64))) /u 4) * (1 smin (-1 smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i64))))) + %arg2)<nsw> U: full-set S: full-set Exits: ((4 * ((((-1 * (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64)) + (ptrtoint i32* %arg to i64)) smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64))) /u 4) * (1 smin (-1 smax ((-1 * (ptrtoint i32* %arg to i64)) + (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i64))))) + %arg2)<nsw> LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:    %i13 = load i32, i32* %i12, align 4
 ; X64-NEXT:    --> %i13 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X64-NEXT:    %i14 = add nsw i32 %i13, %i8
 ; X64-NEXT:    --> (%i13 + %i8) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X64-NEXT:    %i15 = getelementptr inbounds i32, i32* %i7, i64 1
 ; X64-NEXT:    --> {(4 + %arg)<nsw>,+,4}<nuw><%bb6> U: full-set S: full-set Exits: (4 + (4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) LoopDispositions: { %bb6: Computable }
 ; X64-NEXT:  Determining loop execution counts for: @pr46786_c26_int
 ; X64-NEXT:  Loop %bb6: backedge-taken count is ((-4 + (-1 * %arg) + %arg1) /u 4)
 ; X64-NEXT:  Loop %bb6: max backedge-taken count is 4611686018427387903
 ; X64-NEXT:  Loop %bb6: Predicated backedge-taken count is ((-4 + (-1 * %arg) + %arg1) /u 4)
 ; X64-NEXT:   Predicates:
 ; X64:       Loop %bb6: Trip multiple is 1
 ;
 ; X32-LABEL: 'pr46786_c26_int'
 ; X32-NEXT:  Classifying expressions for: @pr46786_c26_int
 ; X32-NEXT:    %i4 = ptrtoint i32* %arg to i64
-; X32-NEXT:    --> %i4 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i32* %arg to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:    %i7 = phi i32* [ %arg, %bb3 ], [ %i15, %bb6 ]
 ; X32-NEXT:    --> {%arg,+,4}<nuw><%bb6> U: full-set S: full-set Exits: ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i8 = load i32, i32* %i7, align 4
 ; X32-NEXT:    --> %i8 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X32-NEXT:    %i9 = ptrtoint i32* %i7 to i64
-; X32-NEXT:    --> %i9 U: [0,4294967296) S: [-4294967296,4294967296) Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> (zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64) U: [0,4294967296) S: [0,4294967296) Exits: (zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i10 = sub i64 %i9, %i4
-; X32-NEXT:    --> ((-1 * %i4)<nsw> + %i9) U: [-4294967295,4294967296) S: [-8589934591,8589934592) Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> ((zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>) U: [-4294967295,4294967296) S: [-4294967295,4294967296) Exits: ((zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i11 = ashr exact i64 %i10, 2
-; X32-NEXT:    --> (((((-1 * %i4)<nsw> + %i9) smax ((-1 * %i9)<nsw> + %i4)) /u 4) * (1 smin (-1 smax ((-1 * %i4)<nsw> + %i9))))<nsw> U: [-4611686018427387903,4611686018427387904) S: [-4611686018427387903,4611686018427387904) Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> (((((zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>) smax ((zext i32 (ptrtoint i32* %arg to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64))<nsw>)) /u 4) * (1 smin (-1 smax ((zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>))))<nsw> U: [-4611686018427387903,4611686018427387904) S: [-4611686018427387903,4611686018427387904) Exits: (((((zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>) smax ((zext i32 (ptrtoint i32* %arg to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64))<nsw>)) /u 4) * (1 smin (-1 smax ((zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>))))<nsw> LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i12 = getelementptr inbounds i32, i32* %arg2, i64 %i11
-; X32-NEXT:    --> ((4 * (trunc i64 (((((-1 * %i4)<nsw> + %i9) smax ((-1 * %i9)<nsw> + %i4)) /u 4) * (1 smin (-1 smax ((-1 * %i4)<nsw> + %i9))))<nsw> to i32))<nsw> + %arg2)<nsw> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
+; X32-NEXT:    --> ((4 * (trunc i64 (((((zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>) smax ((zext i32 (ptrtoint i32* %arg to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64))<nsw>)) /u 4) * (1 smin (-1 smax ((zext i32 (ptrtoint i32* {%arg,+,4}<nuw><%bb6> to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>))))<nsw> to i32))<nsw> + %arg2)<nsw> U: full-set S: full-set Exits: ((4 * (trunc i64 (((((zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>) smax ((zext i32 (ptrtoint i32* %arg to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64))<nsw>)) /u 4) * (1 smin (-1 smax ((zext i32 (ptrtoint i32* ((4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) to i32) to i64) + (-1 * (zext i32 (ptrtoint i32* %arg to i32) to i64))<nsw>))))<nsw> to i32))<nsw> + %arg2)<nsw> LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:    %i13 = load i32, i32* %i12, align 4
 ; X32-NEXT:    --> %i13 U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X32-NEXT:    %i14 = add nsw i32 %i13, %i8
 ; X32-NEXT:    --> (%i13 + %i8) U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb6: Variant }
 ; X32-NEXT:    %i15 = getelementptr inbounds i32, i32* %i7, i64 1
 ; X32-NEXT:    --> {(4 + %arg)<nsw>,+,4}<nuw><%bb6> U: full-set S: full-set Exits: (4 + (4 * ((-4 + (-1 * %arg) + %arg1) /u 4))<nuw> + %arg) LoopDispositions: { %bb6: Computable }
 ; X32-NEXT:  Determining loop execution counts for: @pr46786_c26_int
 ; X32-NEXT:  Loop %bb6: backedge-taken count is ((-4 + (-1 * %arg) + %arg1) /u 4)

 }
 
 ; During SCEV rewrites, we could end up calling `ScalarEvolution::getPtrToIntExpr()`
 ; on an integer. Make sure we handle that case gracefully.
 define void @ptrtoint_of_integer(i8* %arg, i64 %arg1, i1 %arg2) local_unnamed_addr {
 ; X64-LABEL: 'ptrtoint_of_integer'
 ; X64-NEXT:  Classifying expressions for: @ptrtoint_of_integer
 ; X64-NEXT:    %i4 = ptrtoint i8* %arg to i64
-; X64-NEXT:    --> %i4 U: full-set S: full-set
+; X64-NEXT:    --> (ptrtoint i8* %arg to i64) U: full-set S: full-set
 ; X64-NEXT:    %i6 = sub i64 %i4, %arg1
-; X64-NEXT:    --> ((-1 * %arg1) + %i4) U: full-set S: full-set
+; X64-NEXT:    --> ((-1 * %arg1) + (ptrtoint i8* %arg to i64)) U: full-set S: full-set
 ; X64-NEXT:    %i9 = phi i64 [ 1, %bb7 ], [ %i11, %bb10 ]
 ; X64-NEXT:    --> {1,+,1}<nuw><%bb8> U: [1,0) S: [1,0) Exits: <<Unknown>> LoopDispositions: { %bb8: Computable }
 ; X64-NEXT:    %i11 = add nuw i64 %i9, 1
 ; X64-NEXT:    --> {2,+,1}<nw><%bb8> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb8: Computable }
 ; X64-NEXT:  Determining loop execution counts for: @ptrtoint_of_integer
 ; X64-NEXT:  Loop %bb8: <multiple exits> Unpredictable backedge-taken count.
 ; X64-NEXT:    exit count for bb8: ***COULDNOTCOMPUTE***
-; X64-NEXT:    exit count for bb10: (-2 + (-1 * %arg1) + %i4)
+; X64-NEXT:    exit count for bb10: (-2 + (-1 * %arg1) + (ptrtoint i8* %arg to i64))
 ; X64-NEXT:  Loop %bb8: max backedge-taken count is -1
 ; X64-NEXT:  Loop %bb8: Unpredictable predicated backedge-taken count.
 ;
 ; X32-LABEL: 'ptrtoint_of_integer'
 ; X32-NEXT:  Classifying expressions for: @ptrtoint_of_integer
 ; X32-NEXT:    %i4 = ptrtoint i8* %arg to i64
-; X32-NEXT:    --> %i4 U: [0,4294967296) S: [-4294967296,4294967296)
+; X32-NEXT:    --> (zext i32 (ptrtoint i8* %arg to i32) to i64) U: [0,4294967296) S: [0,4294967296)
 ; X32-NEXT:    %i6 = sub i64 %i4, %arg1
-; X32-NEXT:    --> ((-1 * %arg1) + %i4) U: full-set S: full-set
+; X32-NEXT:    --> ((zext i32 (ptrtoint i8* %arg to i32) to i64) + (-1 * %arg1)) U: full-set S: full-set
 ; X32-NEXT:    %i9 = phi i64 [ 1, %bb7 ], [ %i11, %bb10 ]
 ; X32-NEXT:    --> {1,+,1}<nuw><%bb8> U: [1,0) S: [1,0) Exits: <<Unknown>> LoopDispositions: { %bb8: Computable }
 ; X32-NEXT:    %i11 = add nuw i64 %i9, 1
 ; X32-NEXT:    --> {2,+,1}<nw><%bb8> U: full-set S: full-set Exits: <<Unknown>> LoopDispositions: { %bb8: Computable }
 ; X32-NEXT:  Determining loop execution counts for: @ptrtoint_of_integer
 ; X32-NEXT:  Loop %bb8: <multiple exits> Unpredictable backedge-taken count.
 ; X32-NEXT:    exit count for bb8: ***COULDNOTCOMPUTE***
-; X32-NEXT:    exit count for bb10: (-2 + (-1 * %arg1) + %i4)
+; X32-NEXT:    exit count for bb10: (-2 + (zext i32 (ptrtoint i8* %arg to i32) to i64) + (-1 * %arg1))
 ; X32-NEXT:  Loop %bb8: max backedge-taken count is -1
 ; X32-NEXT:  Loop %bb8: Unpredictable predicated backedge-taken count.
 ;
 bb:
   %i = icmp eq i8* %arg, null
   br i1 %i, label %bb14, label %bb3
 
 bb3:                                              ; preds = %bb

llvm/test/Other/constant-fold-gep.ll

 ; TO: define i64 @fh() local_unnamed_addr #0 {
 ; TO:   ret i64 8
 ; TO: }
 ; TO: define i64 @fi() local_unnamed_addr #0 {
 ; TO:   ret i64 8
 ; TO: }
 ; SCEV: Classifying expressions for: @fa
 ; SCEV:   %t = bitcast i64 mul (i64 ptrtoint (double* getelementptr (double, double* null, i32 1) to i64), i64 2310) to i64
-; SCEV:   -->  (2310 * sizeof(double))
+; SCEV:   -->  18480
 ; SCEV: Classifying expressions for: @fb
 ; SCEV:   %t = bitcast i64 ptrtoint (double* getelementptr ({ i1, double }, { i1, double }* null, i64 0, i32 1) to i64) to i64
-; SCEV:   -->  alignof(double)
+; SCEV:   -->  8
 ; SCEV: Classifying expressions for: @fc
 ; SCEV:   %t = bitcast i64 mul nuw (i64 ptrtoint (double* getelementptr (double, double* null, i32 1) to i64), i64 2) to i64
-; SCEV:   -->  (2 * sizeof(double))
+; SCEV:   -->  16
 ; SCEV: Classifying expressions for: @fd
 ; SCEV:   %t = bitcast i64 mul nuw (i64 ptrtoint (double* getelementptr (double, double* null, i32 1) to i64), i64 11) to i64
-; SCEV:   -->  (11 * sizeof(double))
+; SCEV:   -->  88
 ; SCEV: Classifying expressions for: @fe
 ; SCEV:   %t = bitcast i64 ptrtoint (double* getelementptr ({ double, float, double, double }, { double, float, double, double }* null, i64 0, i32 2) to i64) to i64
-; SCEV:   -->  offsetof({ double, float, double, double }, 2)
+; SCEV:   -->  16
 ; SCEV: Classifying expressions for: @ff
 ; SCEV:   %t = bitcast i64 1 to i64
 ; SCEV:   -->  1
 ; SCEV: Classifying expressions for: @fg
 ; SCEV:   %t = bitcast i64 ptrtoint (double* getelementptr ({ i1, double }, { i1, double }* null, i64 0, i32 1) to i64) to i64
-; SCEV:   -->  alignof(double)
+; SCEV:   -->  8
 ; SCEV: Classifying expressions for: @fh
 ; SCEV:   %t = bitcast i64 ptrtoint (i1** getelementptr (i1*, i1** null, i32 1) to i64) to i64
-; SCEV:   -->  sizeof(i1*)
+; SCEV:   --> 8
 ; SCEV: Classifying expressions for: @fi
 ; SCEV:   %t = bitcast i64 ptrtoint (i1** getelementptr ({ i1, i1* }, { i1, i1* }* null, i64 0, i32 1) to i64) to i64
-; SCEV:   -->  alignof(i1*)
+; SCEV:   --> 8
 
 define i64 @fa() nounwind {
   %t = bitcast i64 mul (i64 3, i64 mul (i64 ptrtoint ({[7 x double], [7 x double]}* getelementptr ({[7 x double], [7 x double]}, {[7 x double], [7 x double]}* null, i64 11) to i64), i64 5)) to i64
   ret i64 %t
 }
 define i64 @fb() nounwind {
   %t = bitcast i64 ptrtoint ([13 x double]* getelementptr ({i1, [13 x double]}, {i1, [13 x double]}* null, i64 0, i32 1) to i64) to i64
   ret i64 %t

 ; TO: define i64* @fN() local_unnamed_addr #0 {
 ; TO:   ret i64* inttoptr (i64 8 to i64*)
 ; TO: }
 ; TO: define i64* @fO() local_unnamed_addr #0 {
 ; TO:   ret i64* inttoptr (i64 8 to i64*)
 ; TO: }
 ; SCEV: Classifying expressions for: @fM
 ; SCEV:   %t = bitcast i64* getelementptr (i64, i64* null, i32 1) to i64*
-; SCEV:   -->  8
+; SCEV:    --> 8
 ; SCEV: Classifying expressions for: @fN
 ; SCEV:   %t = bitcast i64* getelementptr ({ i64, i64 }, { i64, i64 }* null, i32 0, i32 1) to i64*
-; SCEV:   -->  8
+; SCEV:   --> 8
 ; SCEV: Classifying expressions for: @fO
 ; SCEV:   %t = bitcast i64* getelementptr ([2 x i64], [2 x i64]* null, i32 0, i32 1) to i64*
-; SCEV:   -->  8
+; SCEV:   --> 8
 
 define i64* @fM() nounwind {
   %t = bitcast i64* getelementptr (i64, i64* null, i32 1) to i64*
   ret i64* %t
 }
 define i64* @fN() nounwind {
   %t = bitcast i64* getelementptr ({ i64, i64 }, { i64, i64 }* null, i32 0, i32 1) to i64*
   ret i64* %t

llvm/test/Transforms/LoopStrengthReduce/post-inc-icmpzero.ll

 ; CHECK-NEXT:    [[CMP2740:%.*]] = icmp eq i64 [[IDX_EXT21]], 0
 ; CHECK-NEXT:    br i1 [[CMP2740]], label [[FOR_END:%.*]], label [[FOR_BODY_LR_PH:%.*]]
 ; CHECK:       for.body.lr.ph:
 ; CHECK-NEXT:    [[TMP16:%.*]] = load i32, i32* [[MLENGTH]], align 4
 ; CHECK-NEXT:    [[MBEGIN:%.*]] = getelementptr inbounds [[STRUCT_VECTOR2]], %struct.Vector2* [[RESULT]], i64 0, i32 0
 ; CHECK-NEXT:    [[TMP14:%.*]] = load i16*, i16** [[MBEGIN]], align 8
 ; CHECK-NEXT:    [[TMP48:%.*]] = zext i32 [[TMP16]] to i64
 ; CHECK-NEXT:    [[SCEVGEP:%.*]] = getelementptr i16, i16* [[TMP14]], i64 [[TMP48]]
-; CHECK-NEXT:    [[TMP3:%.*]] = shl nuw i64 [[IDX_EXT21]], 1
+; CHECK-NEXT:    [[SCEVGEP1:%.*]] = bitcast i16* [[SCEVGEP]] to i8*
 ; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
 ; CHECK:       for.body:
-; CHECK-NEXT:    [[LSR_IV8:%.*]] = phi [33 x i16]* [ [[TMP4:%.*]], [[FOR_BODY]] ], [ [[TMP2]], [[FOR_BODY_LR_PH]] ]
-; CHECK-NEXT:    [[LSR_IV2:%.*]] = phi i64 [ [[LSR_IV_NEXT:%.*]], [[FOR_BODY]] ], [ [[TMP3]], [[FOR_BODY_LR_PH]] ]
-; CHECK-NEXT:    [[LSR_IV:%.*]] = phi i16* [ [[SCEVGEP1:%.*]], [[FOR_BODY]] ], [ [[SCEVGEP]], [[FOR_BODY_LR_PH]] ]
+; CHECK-NEXT:    [[LSR_IV8:%.*]] = phi [33 x i16]* [ [[TMP3:%.*]], [[FOR_BODY]] ], [ [[TMP2]], [[FOR_BODY_LR_PH]] ]
+; CHECK-NEXT:    [[LSR_IV:%.*]] = phi i64 [ [[LSR_IV_NEXT:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_LR_PH]] ]
 ; CHECK-NEXT:    [[LSR_IV810:%.*]] = bitcast [33 x i16]* [[LSR_IV8]] to i16*
+; CHECK-NEXT:    [[UGLYGEP:%.*]] = getelementptr i8, i8* [[SCEVGEP1]], i64 [[LSR_IV]]
+; CHECK-NEXT:    [[UGLYGEP2:%.*]] = bitcast i8* [[UGLYGEP]] to i16*
 ; CHECK-NEXT:    [[TMP29:%.*]] = load i16, i16* [[LSR_IV810]], align 2
-; CHECK-NEXT:    store i16 [[TMP29]], i16* [[LSR_IV]], align 2
-; CHECK-NEXT:    [[SCEVGEP1]] = getelementptr i16, i16* [[LSR_IV]], i64 1
-; CHECK-NEXT:    [[LSR_IV_NEXT]] = add i64 [[LSR_IV2]], -2
+; CHECK-NEXT:    store i16 [[TMP29]], i16* [[UGLYGEP2]], align 2
+; CHECK-NEXT:    [[LSR_IV_NEXT]] = add i64 [[LSR_IV]], 2
 ; CHECK-NEXT:    [[LSR_IV_NEXT3:%.*]] = inttoptr i64 [[LSR_IV_NEXT]] to i16*
 ; CHECK-NEXT:    [[SCEVGEP9:%.*]] = getelementptr [33 x i16], [33 x i16]* [[LSR_IV8]], i64 0, i64 1
-; CHECK-NEXT:    [[TMP4]] = bitcast i16* [[SCEVGEP9]] to [33 x i16]*
+; CHECK-NEXT:    [[TMP3]] = bitcast i16* [[SCEVGEP9]] to [33 x i16]*
 ; CHECK-NEXT:    [[CMP27:%.*]] = icmp eq i16* [[LSR_IV_NEXT3]], null
 ; CHECK-NEXT:    br i1 [[CMP27]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
 ; CHECK:       for.end.loopexit:
 ; CHECK-NEXT:    br label [[FOR_END]]
 ; CHECK:       for.end:
 ; CHECK-NEXT:    [[TMP38:%.*]] = load i32, i32* [[MLENGTH]], align 4
 ; CHECK-NEXT:    [[ADD:%.*]] = add i32 [[TMP38]], [[CONV11]]
 ; CHECK-NEXT:    store i32 [[ADD]], i32* [[MLENGTH]], align 4

polly/include/polly/Support/SCEVAffinator.h

private:
   PWACtx checkForWrapping(const llvm::SCEV *Expr, PWACtx PWAC) const;
 
   /// Whether to track the value of this expression precisely, rather than
   /// assuming it won't wrap.
   bool computeModuloForExpr(const llvm::SCEV *Expr);
 
   PWACtx visit(const llvm::SCEV *E);
   PWACtx visitConstant(const llvm::SCEVConstant *E);
+  PWACtx visitPtrToIntExpr(const llvm::SCEVPtrToIntExpr *E);
   PWACtx visitTruncateExpr(const llvm::SCEVTruncateExpr *E);
   PWACtx visitZeroExtendExpr(const llvm::SCEVZeroExtendExpr *E);
   PWACtx visitSignExtendExpr(const llvm::SCEVSignExtendExpr *E);
   PWACtx visitAddExpr(const llvm::SCEVAddExpr *E);
   PWACtx visitMulExpr(const llvm::SCEVMulExpr *E);
   PWACtx visitUDivExpr(const llvm::SCEVUDivExpr *E);
   PWACtx visitAddRecExpr(const llvm::SCEVAddRecExpr *E);
   PWACtx visitSMaxExpr(const llvm::SCEVSMaxExpr *E);

polly/lib/Support/SCEVAffinator.cpp

PWACtx SCEVAffinator::visitConstant(const SCEVConstant *Expr) {
   v = isl_valFromAPInt(Ctx.get(), Value->getValue(), /* isSigned */ true);
 
   isl_space *Space = isl_space_set_alloc(Ctx.get(), 0, NumIterators);
   isl_local_space *ls = isl_local_space_from_space(Space);
   return getPWACtxFromPWA(
       isl::manage(isl_pw_aff_from_aff(isl_aff_val_on_domain(ls, v))));
 }
 
+PWACtx SCEVAffinator::visitPtrToIntExpr(const SCEVPtrToIntExpr *Expr) {
+  return visit(Expr->getOperand(0));
+}
+
 PWACtx SCEVAffinator::visitTruncateExpr(const SCEVTruncateExpr *Expr) {
   // Truncate operations are basically modulo operations, thus we can
   // model them that way. However, for large types we assume the operand
   // to fit in the new type size instead of introducing a modulo with a very
   // large constant.
 
   auto *Op = Expr->getOperand();
   auto OpPWAC = visit(Op);
PWACtx SCEVAffinator::visitSRemInstruction(Instruction *SRem) {
   return DividendPWAC;
 }
 
 PWACtx SCEVAffinator::visitUnknown(const SCEVUnknown *Expr) {
   if (Instruction *I = dyn_cast<Instruction>(Expr->getValue())) {
     switch (I->getOpcode()) {
     case Instruction::IntToPtr:
       return visit(SE.getSCEVAtScope(I->getOperand(0), getScope()));
-    case Instruction::PtrToInt:
-      return visit(SE.getSCEVAtScope(I->getOperand(0), getScope()));
     case Instruction::SDiv:
       return visitSDivInstruction(I);
     case Instruction::SRem:
       return visitSRemInstruction(I);
     default:
       break; // Fall through.
     }
   }

polly/lib/Support/SCEVValidator.cpp

class ValidatorResult visitZeroExtendOrTruncateExpr(const SCEV *Expr,
     if (PollyAllowUnsignedOperations || Type == SCEVType::INVALID)
       return Op;
 
     if (Type == SCEVType::IV)
       return ValidatorResult(SCEVType::INVALID);
     return ValidatorResult(SCEVType::PARAM, Expr);
   }
 
+  class ValidatorResult visitPtrToIntExpr(const SCEVPtrToIntExpr *Expr) {
+    return visit(Expr->getOperand());
+  }
+
   class ValidatorResult visitTruncateExpr(const SCEVTruncateExpr *Expr) {
     return visitZeroExtendOrTruncateExpr(Expr, Expr->getOperand());
   }
 
   class ValidatorResult visitZeroExtendExpr(const SCEVZeroExtendExpr *Expr) {
     return visitZeroExtendOrTruncateExpr(Expr, Expr->getOperand());
   }
 
if (isa<UndefValue>(V)) {
       LLVM_DEBUG(dbgs() << "INVALID: UnknownExpr references an undef value");
       return ValidatorResult(SCEVType::INVALID);
     }
 
     if (Instruction *I = dyn_cast<Instruction>(Expr->getValue())) {
       switch (I->getOpcode()) {
       case Instruction::IntToPtr:
         return visit(SE.getSCEVAtScope(I->getOperand(0), Scope));
-      case Instruction::PtrToInt:
-        return visit(SE.getSCEVAtScope(I->getOperand(0), Scope));
       case Instruction::Load:
         return visitLoadInstruction(I, Expr);
       case Instruction::SDiv:
         return visitSDivInstruction(I, Expr);
       case Instruction::SRem:
         return visitSRemInstruction(I, Expr);
       case Instruction::Call:
         return visitCallInstruction(I, Expr);

polly/lib/Support/ScopHelper.cpp

const SCEV *visitUnknown(const SCEVUnknown *E) {
     return SE.getSCEV(Inst);
   }
 
   /// The following functions will just traverse the SCEV and rebuild it with
   /// the new operands returned by the traversal.
   ///
   ///{
   const SCEV *visitConstant(const SCEVConstant *E) { return E; }
+  const SCEV *visitPtrToIntExpr(const SCEVPtrToIntExpr *E) {
+    return SE.getPtrToIntExpr(visit(E->getOperand()), E->getType());
+  }
   const SCEV *visitTruncateExpr(const SCEVTruncateExpr *E) {
     return SE.getTruncateExpr(visit(E->getOperand()), E->getType());
   }
   const SCEV *visitZeroExtendExpr(const SCEVZeroExtendExpr *E) {
     return SE.getZeroExtendExpr(visit(E->getOperand()), E->getType());
   }
   const SCEV *visitSignExtendExpr(const SCEVSignExtendExpr *E) {
     return SE.getSignExtendExpr(visit(E->getOperand()), E->getType());

polly/test/Isl/CodeGen/ptrtoint_as_parameter.ll

 ; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s
 ;
-; CHECK:      polly.split_new_and_old:
-; CHECK-NEXT:   %pollysub.ptr.lhs.cast263 = ptrtoint i8* inttoptr (i64 1 to i8*) to i64
+; CHECK:      if.then260:
+; CHECK-NEXT:   %p.4 = getelementptr inbounds i8, i8* null, i64 1
+; CHECK-NEXT:   %sub.ptr.lhs.cast263 = ptrtoint i8* %p.4 to i64
+; CHECK-NEXT:   %sub.ptr.sub265 = sub i64 %sub.ptr.lhs.cast263, 0
+; CHECK-NEXT:   %div = udiv i64 0, %sub.ptr.sub265
+; CHECK-NEXT:   %cmp268 = icmp ult i64 0, %div
+; CHECK-NEXT:   br i1 %cmp268, label %cond.true270, label %while.cond.region_exiting
 ;
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 ; Function Attrs: nounwind uwtable
 define void @XS_MIME__QuotedPrint_encode_qp() {
 entry:
   %Perl_sv_len = alloca i64, align 8
   br label %if.end

polly/test/ScopInfo/NonAffine/non-affine-loop-condition-dependent-access_3.ll

 ; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] : 0 <= i0 <= 1023 and 0 <= i1 <= 1023 };
 ; ALL-NEXT:         Schedule :=
 ; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> [i0, i1] };
 ; ALL-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
 ; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[i0] };
 ; ALL-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
 ; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[i1] };
 ; ALL-NEXT:         ReadAccess :=    [Reduction Type: NONE] [Scalar: 0]
-; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 2147483647 };
+; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 1048576 };
 ; ALL-NEXT:         MayWriteAccess :=    [Reduction Type: NONE] [Scalar: 0]
-; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 2147483647 };
+; ALL-NEXT:             { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 1048576 };
 ; ALL-NEXT: }
 ;
 ;    void f(int *A) {
 ;      for (int i = 0; i < 1024; i++)
 ;        for (int j = 0; j < 1024; j++)
 ;          for (int k = 0; k < i * j; k++)
 ;            A[k] += A[i] + A[j];
 ;    }

polly/test/ScopInfo/int2ptr_ptr2int.ll

 ; CHECK:        ReadAccess := [Reduction Type: NONE] [Scalar: 0]
 ; CHECK-NEXT:       [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + val] };
 ; CHECK-NEXT:   ReadAccess := [Reduction Type: +] [Scalar: 0]
 ; CHECK-NEXT:       [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
 ; CHECK-NEXT:   MustWriteAccess :=  [Reduction Type: +] [Scalar: 0]
 ; CHECK-NEXT:       [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
 ;
 ; IR:      polly.stmt.for.body:
-; IR-NEXT:   %p_tmp = ptrtoint i64* %scevgep to i64
-; IR-NEXT:   %p_add = add nsw i64 %p_tmp, 1
-; IR-NEXT:   %p_tmp1 = inttoptr i64 %[[r1:[a-zA-Z0-9]*]] to i64*
+; IR-NEXT:   %p_tmp1 = inttoptr i64 %0 to i64*
 ; IR-NEXT:   %p_add.ptr2 = getelementptr inbounds i64, i64* %p_tmp1, i64 1
 ; IR-NEXT:   %p_tmp2 = ptrtoint i64* %p_add.ptr2 to i64
 ; IR-NEXT:   %p_arrayidx = getelementptr inbounds i64, i64* %A, i64 %p_tmp2
-; IR-NEXT:   %tmp3_p_scalar_ = load i64, i64* %p_arrayidx
-; IR-NEXT:   %p_arrayidx3 = getelementptr inbounds i64, i64* %A, i64 %p_add
-; IR-NEXT:   %tmp4_p_scalar_ = load i64, i64* %p_arrayidx3
+; IR-NEXT:   %tmp3_p_scalar_ = load i64, i64* %p_arrayidx, align 8, !alias.scope !0, !noalias !2
+; IR-NEXT:   %tmp4_p_scalar_ = load i64, i64* %scevgep1, align 8, !alias.scope !0, !noalias !2
 ; IR-NEXT:   %p_add4 = add nsw i64 %tmp4_p_scalar_, %tmp3_p_scalar_
-; IR-NEXT:   store i64 %p_add4, i64* %p_arrayidx3
+; IR-NEXT:   store i64 %p_add4, i64* %scevgep1, align 8, !alias.scope !0, !noalias !2
+; IR-NEXT:   %polly.indvar_next = add nsw i64 %polly.indvar, 1
+; IR-NEXT:   %polly.loop_cond = icmp sle i64 %polly.indvar_next, 99
+; IR-NEXT:   br i1 %polly.loop_cond, label %polly.loop_header, label %polly.loop_exit
 ;
 ; IR:      polly.loop_preheader:
+; IR-NEXT:   %0 = add i64 %val, 1
 ; IR-NEXT:   %scevgep = getelementptr i64, i64* %ptr, i32 1
-; IR-NEXT:   %[[r1]] = add i64 %val, 1
+; IR-NEXT:   %1 = ptrtoint i64* %scevgep to i32
+; IR-NEXT:   %2 = add i32 %1, 1
+; IR-NEXT:   %scevgep1 = getelementptr i64, i64* %A, i32 %2
 ; IR-NEXT:   br label %polly.loop_header
 ;
 target datalayout = "e-p:32:32:32-m:e-i64:64-f80:128-n8:16:32:64-S128"
 
 define void @f(i64* %A, i64* %ptr, i64 %val) {
 entry:
   br label %for.cond
 

polly/test/ScopInfo/int2ptr_ptr2int_2.ll

 ; CHECK-NEXT:   Execution Context: [val, ptr] -> {  : val <= 32766 }
 ;
 ; CHECK:   ReadAccess :=  [Reduction Type: +] [Scalar: 0]
 ; CHECK-NEXT:       [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
 ; CHECK-NEXT:   MustWriteAccess :=  [Reduction Type: +] [Scalar: 0]
 ; CHECK-NEXT:       [val, ptr] -> { Stmt_for_body[i0] -> MemRef_A[9 + ptr] };
 ;
 ; IR:      polly.stmt.for.body:
-; IR-NEXT:  %p_tmp = ptrtoint i64* %scevgep to i16
-; IR-NEXT:  %p_add = add nsw i16 %p_tmp, 1
-; IR-NEXT:  %p_arrayidx3 = getelementptr inbounds i64, i64* %A, i16 %p_add
-; IR-NEXT:  %tmp4_p_scalar_ = load i64, i64* %p_arrayidx3
-; IR-NEXT:  %p_add4 = add nsw i64 %tmp4_p_scalar_, %polly.preload.tmp3.merge
-; IR-NEXT:  store i64 %p_add4, i64* %p_arrayidx3
+; IR-NEXT:   %tmp4_p_scalar_ = load i64, i64* %scevgep13, align 8, !alias.scope !3, !noalias !4
+; IR-NEXT:   %p_add4 = add nsw i64 %tmp4_p_scalar_, %polly.preload.tmp3.merge
+; IR-NEXT:   store i64 %p_add4, i64* %scevgep13, align 8, !alias.scope !3, !noalias !4
+; IR-NEXT:   %polly.indvar_next = add nsw i64 %polly.indvar, 1
+; IR-NEXT:   %polly.loop_cond = icmp sle i64 %polly.indvar_next, 99
+; IR-NEXT:   br i1 %polly.loop_cond, label %polly.loop_header, label %polly.loop_exit
 ;
 ; IR:      polly.loop_preheader:
-; IR-NEXT:   %scevgep = getelementptr i64, i64* %ptr, i16 1
 ; IR-NEXT:   %35 = add i16 %val, 1
+; IR-NEXT:   %scevgep = getelementptr i64, i64* %ptr, i16 1
+; IR-NEXT:   %36 = ptrtoint i64* %scevgep to i16
+; IR-NEXT:   %37 = add i16 %36, 1
+; IR-NEXT:   %scevgep13 = getelementptr i64, i64* %A, i16 %37
 ; IR-NEXT:   br label %polly.loop_header
 ;
-;
 target datalayout = "e-p:16:16:16-m:e-i64:64-f80:128-n8:16:16:64-S128"
 
 define void @f(i64* %A, i64* %B, i64* %ptr, i16 %val) {
 entry:
   br label %for.cond
 
 for.cond:                                         ; preds = %for.inc, %entry
   %i.0 = phi i64 [ 0, %entry ], [ %inc, %for.inc ]