[clang] [llvm] [mlir] [APInt] Assert correct values in APInt constructor (PR #80309)

Nikita Popov via cfe-commits cfe-commits at lists.llvm.org
Thu Aug 15 06:15:41 PDT 2024


https://github.com/nikic updated https://github.com/llvm/llvm-project/pull/80309

>From 2098cc392818c47892df0e412dbca125d5dee755 Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov at redhat.com>
Date: Tue, 13 Aug 2024 15:11:18 +0200
Subject: [PATCH 1/3] apint only

---
 clang/lib/AST/Interp/IntegralAP.h             |   6 +-
 clang/lib/CodeGen/CGVTT.cpp                   |   4 +-
 clang/lib/CodeGen/ItaniumCXXABI.cpp           |   4 +-
 clang/lib/Parse/ParseInit.cpp                 |   4 +-
 clang/lib/Sema/SemaExpr.cpp                   |   7 +-
 clang/lib/Sema/SemaOpenMP.cpp                 |   4 +-
 llvm/include/llvm/ADT/APFixedPoint.h          |   4 +-
 llvm/include/llvm/ADT/APInt.h                 |  19 +-
 llvm/lib/Analysis/ConstantFolding.cpp         |   3 +-
 llvm/lib/Analysis/MemoryBuiltins.cpp          |   2 +
 llvm/lib/Analysis/ValueTracking.cpp           |   4 +-
 llvm/lib/Bitcode/Reader/BitcodeReader.cpp     |   3 +-
 .../lib/CodeGen/SelectionDAG/SelectionDAG.cpp |   5 +-
 .../SelectionDAG/SelectionDAGBuilder.cpp      |   3 +-
 .../CodeGen/SelectionDAG/SelectionDAGISel.cpp |   4 +-
 .../CodeGen/SelectionDAG/TargetLowering.cpp   |   8 +-
 llvm/lib/IR/ConstantRange.cpp                 |   6 +-
 llvm/lib/IR/Constants.cpp                     |   4 +-
 llvm/lib/Support/APInt.cpp                    |  14 +-
 llvm/lib/Target/X86/X86ISelLowering.cpp       |   6 +-
 llvm/lib/Transforms/IPO/ArgumentPromotion.cpp |   3 +-
 .../InstCombine/InstCombineSelect.cpp         |   8 +-
 llvm/lib/Transforms/Utils/SimplifyCFG.cpp     |   2 +-
 llvm/unittests/ADT/APFixedPointTest.cpp       |   9 +-
 llvm/unittests/ADT/APIntTest.cpp              | 185 +++++++-------
 llvm/unittests/ADT/APSIntTest.cpp             |   8 +-
 llvm/unittests/ADT/StringExtrasTest.cpp       |  10 +-
 .../Analysis/ScalarEvolutionTest.cpp          |   2 +-
 llvm/unittests/IR/ConstantRangeTest.cpp       | 240 +++++++++---------
 llvm/unittests/IR/MetadataTest.cpp            |  22 +-
 llvm/unittests/IR/PatternMatch.cpp            | 202 +++++++--------
 .../Support/DivisionByConstantTest.cpp        |   2 +-
 32 files changed, 434 insertions(+), 373 deletions(-)

diff --git a/clang/lib/AST/Interp/IntegralAP.h b/clang/lib/AST/Interp/IntegralAP.h
index b8aa21038256c7..ed756ab1b537b4 100644
--- a/clang/lib/AST/Interp/IntegralAP.h
+++ b/clang/lib/AST/Interp/IntegralAP.h
@@ -61,7 +61,7 @@ template <bool Signed> class IntegralAP final {
 
   IntegralAP(APInt V) : V(V) {}
   /// Arbitrary value for uninitialized variables.
-  IntegralAP() : IntegralAP(-1, 3) {}
+  IntegralAP() : IntegralAP(Signed ? -1 : 7, 3) {}
 
   IntegralAP operator-() const { return IntegralAP(-V); }
   IntegralAP operator-(const IntegralAP &Other) const {
@@ -112,7 +112,9 @@ template <bool Signed> class IntegralAP final {
 
   template <unsigned Bits, bool InputSigned>
   static IntegralAP from(Integral<Bits, InputSigned> I, unsigned BitWidth) {
-    APInt Copy = APInt(BitWidth, static_cast<uint64_t>(I), InputSigned);
+    // TODO: Avoid implicit trunc?
+    APInt Copy = APInt(BitWidth, static_cast<uint64_t>(I), InputSigned,
+                       /*implicitTrunc=*/true);
 
     return IntegralAP<Signed>(Copy);
   }
diff --git a/clang/lib/CodeGen/CGVTT.cpp b/clang/lib/CodeGen/CGVTT.cpp
index 20bd2c2fc2c642..c861e1f9203058 100644
--- a/clang/lib/CodeGen/CGVTT.cpp
+++ b/clang/lib/CodeGen/CGVTT.cpp
@@ -85,8 +85,8 @@ CodeGenVTables::EmitVTTDefinition(llvm::GlobalVariable *VTT,
          cast<llvm::StructType>(VTable->getValueType())
              ->getElementType(AddressPoint.VTableIndex));
      unsigned Offset = ComponentSize * AddressPoint.AddressPointIndex;
-     llvm::ConstantRange InRange(llvm::APInt(32, -Offset, true),
-                                 llvm::APInt(32, VTableSize - Offset, true));
+     llvm::ConstantRange InRange(llvm::APInt(32, -Offset),
+                                 llvm::APInt(32, VTableSize - Offset));
      llvm::Constant *Init = llvm::ConstantExpr::getGetElementPtr(
          VTable->getValueType(), VTable, Idxs, /*InBounds=*/true, InRange);
 
diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index 0cde8a192eda08..bfab28613f9807 100644
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -2094,8 +2094,8 @@ ItaniumCXXABI::getVTableAddressPoint(BaseSubobject Base,
   unsigned VTableSize =
       ComponentSize * Layout.getVTableSize(AddressPoint.VTableIndex);
   unsigned Offset = ComponentSize * AddressPoint.AddressPointIndex;
-  llvm::ConstantRange InRange(llvm::APInt(32, -Offset, true),
-                              llvm::APInt(32, VTableSize - Offset, true));
+  llvm::ConstantRange InRange(llvm::APInt(32, -Offset),
+                              llvm::APInt(32, VTableSize - Offset));
   return llvm::ConstantExpr::getGetElementPtr(
       VTable->getValueType(), VTable, Indices, /*InBounds=*/true, InRange);
 }
diff --git a/clang/lib/Parse/ParseInit.cpp b/clang/lib/Parse/ParseInit.cpp
index 0a9a359cdaf979..e7c8d79ccccac3 100644
--- a/clang/lib/Parse/ParseInit.cpp
+++ b/clang/lib/Parse/ParseInit.cpp
@@ -437,7 +437,9 @@ ExprResult Parser::createEmbedExpr() {
   SourceLocation StartLoc = ConsumeAnnotationToken();
   if (Data->BinaryData.size() == 1) {
     Res = IntegerLiteral::Create(Context,
-                                 llvm::APInt(CHAR_BIT, Data->BinaryData.back()),
+                                 llvm::APInt(CHAR_BIT, Data->BinaryData.back(),
+                                             /*isSigned=*/false,
+                                             /*implicitTrunc=*/true),
                                  Context.UnsignedCharTy, StartLoc);
   } else {
     auto CreateStringLiteralFromStringRef = [&](StringRef Str, QualType Ty) {
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 0f58eb2840211d..ebc19340ab57e1 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -3581,8 +3581,11 @@ ExprResult Sema::ActOnCharacterConstant(const Token &Tok, Scope *UDLScope) {
 
 ExprResult Sema::ActOnIntegerConstant(SourceLocation Loc, uint64_t Val) {
   unsigned IntSize = Context.getTargetInfo().getIntWidth();
-  return IntegerLiteral::Create(Context, llvm::APInt(IntSize, Val),
-                                Context.IntTy, Loc);
+  // TODO: Avoid implicit trunc?
+  return IntegerLiteral::Create(
+      Context,
+      llvm::APInt(IntSize, Val, /*isSigned=*/false, /*implicitTrunc=*/true),
+      Context.IntTy, Loc);
 }
 
 static Expr *BuildFloatingLiteral(Sema &S, NumericLiteralParser &Literal,
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 87d81dfaad601b..297950ff012d56 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -5704,7 +5704,9 @@ StmtResult SemaOpenMP::ActOnOpenMPCanonicalLoop(Stmt *AStmt) {
       llvm_unreachable("unhandled unary increment operator");
     }
     Step = IntegerLiteral::Create(
-        Ctx, llvm::APInt(Ctx.getIntWidth(LogicalTy), Direction), LogicalTy, {});
+        Ctx,
+        llvm::APInt(Ctx.getIntWidth(LogicalTy), Direction, /*isSigned=*/true),
+        LogicalTy, {});
   } else if (auto *IncBin = dyn_cast<BinaryOperator>(Inc)) {
     if (IncBin->getOpcode() == BO_AddAssign) {
       Step = IncBin->getRHS();
diff --git a/llvm/include/llvm/ADT/APFixedPoint.h b/llvm/include/llvm/ADT/APFixedPoint.h
index 0c014e76aa7126..9c21b1a055b5ee 100644
--- a/llvm/include/llvm/ADT/APFixedPoint.h
+++ b/llvm/include/llvm/ADT/APFixedPoint.h
@@ -160,7 +160,9 @@ class APFixedPoint {
   }
 
   APFixedPoint(uint64_t Val, const FixedPointSemantics &Sema)
-      : APFixedPoint(APInt(Sema.getWidth(), Val, Sema.isSigned()), Sema) {}
+      : APFixedPoint(APInt(Sema.getWidth(), Val, Sema.isSigned(),
+                           /*implicitTrunc=*/true),
+                     Sema) {}
 
   // Zero initialization.
   APFixedPoint(const FixedPointSemantics &Sema) : APFixedPoint(0, Sema) {}
diff --git a/llvm/include/llvm/ADT/APInt.h b/llvm/include/llvm/ADT/APInt.h
index 108df7e0eaeaa3..09730d6ea7d800 100644
--- a/llvm/include/llvm/ADT/APInt.h
+++ b/llvm/include/llvm/ADT/APInt.h
@@ -108,11 +108,26 @@ class [[nodiscard]] APInt {
   /// \param numBits the bit width of the constructed APInt
   /// \param val the initial value of the APInt
   /// \param isSigned how to treat signedness of val
-  APInt(unsigned numBits, uint64_t val, bool isSigned = false)
+  /// \param implicitTrunc allow implicit truncation of non-zero/sign bits of
+  ///                      val beyond the range of numBits
+  APInt(unsigned numBits, uint64_t val, bool isSigned = false,
+        bool implicitTrunc = false)
       : BitWidth(numBits) {
+    if (!implicitTrunc) {
+      if (BitWidth == 0) {
+        assert(val == 0 && "Value must be zero for 0-bit APInt");
+      } else if (isSigned) {
+        assert(llvm::isIntN(BitWidth, val) &&
+               "Value is not an N-bit signed value");
+      } else {
+        assert(llvm::isUIntN(BitWidth, val) &&
+               "Value is not an N-bit unsigned value");
+      }
+    }
     if (isSingleWord()) {
       U.VAL = val;
-      clearUnusedBits();
+      if (implicitTrunc || isSigned)
+        clearUnusedBits();
     } else {
       initSlowCase(val, isSigned);
     }
diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp
index defcacdfa8b105..2b4751f9e2595d 100644
--- a/llvm/lib/Analysis/ConstantFolding.cpp
+++ b/llvm/lib/Analysis/ConstantFolding.cpp
@@ -887,7 +887,8 @@ Constant *SymbolicallyEvaluateGEP(const GEPOperator *GEP,
   APInt Offset = APInt(
       BitWidth,
       DL.getIndexedOffsetInType(
-          SrcElemTy, ArrayRef((Value *const *)Ops.data() + 1, Ops.size() - 1)));
+          SrcElemTy, ArrayRef((Value *const *)Ops.data() + 1, Ops.size() - 1)),
+      /*isSigned=*/true, /*implicitTrunc=*/true);
 
   std::optional<ConstantRange> InRange = GEP->getInRange();
   if (InRange)
diff --git a/llvm/lib/Analysis/MemoryBuiltins.cpp b/llvm/lib/Analysis/MemoryBuiltins.cpp
index e1abf5e4d885ec..dc2dc4c1733b5e 100644
--- a/llvm/lib/Analysis/MemoryBuiltins.cpp
+++ b/llvm/lib/Analysis/MemoryBuiltins.cpp
@@ -767,6 +767,8 @@ SizeOffsetAPInt ObjectSizeOffsetVisitor::visitAllocaInst(AllocaInst &I) {
   TypeSize ElemSize = DL.getTypeAllocSize(I.getAllocatedType());
   if (ElemSize.isScalable() && Options.EvalMode != ObjectSizeOpts::Mode::Min)
     return ObjectSizeOffsetVisitor::unknown();
+  if (!isUIntN(IntTyBits, ElemSize.getKnownMinValue()))
+    return ObjectSizeOffsetVisitor::unknown();
   APInt Size(IntTyBits, ElemSize.getKnownMinValue());
   if (!I.isArrayAllocation())
     return SizeOffsetAPInt(align(Size, I.getAlign()), Zero);
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index b6414a3e7990b0..c49bd0164e68e3 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -9516,7 +9516,7 @@ static ConstantRange getRangeForIntrinsic(const IntrinsicInst &II) {
   case Intrinsic::cttz:
     // Maximum of set/clear bits is the bit width.
     return ConstantRange::getNonEmpty(APInt::getZero(Width),
-                                      APInt(Width, Width + 1));
+                                      APInt(Width, Width) + 1);
   case Intrinsic::uadd_sat:
     // uadd.sat(x, C) produces [C, UINT_MAX].
     if (match(II.getOperand(0), m_APInt(C)) ||
@@ -9671,7 +9671,7 @@ static void setLimitForFPToI(const Instruction *I, APInt &Lower, APInt &Upper) {
   if (!I->getOperand(0)->getType()->getScalarType()->isHalfTy())
     return;
   if (isa<FPToSIInst>(I) && BitWidth >= 17) {
-    Lower = APInt(BitWidth, -65504);
+    Lower = APInt(BitWidth, -65504, true);
     Upper = APInt(BitWidth, 65505);
   }
 
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index d4dbab04e8ecdb..142ae67dec751f 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -858,7 +858,8 @@ class BitcodeReader : public BitcodeReaderBase, public GVMaterializer {
     } else {
       int64_t Start = BitcodeReader::decodeSignRotatedValue(Record[OpNum++]);
       int64_t End = BitcodeReader::decodeSignRotatedValue(Record[OpNum++]);
-      return ConstantRange(APInt(BitWidth, Start), APInt(BitWidth, End));
+      return ConstantRange(APInt(BitWidth, Start, true),
+                           APInt(BitWidth, End, true));
     }
   }
 
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 7bf90ceb93cb4e..16b474e127eafc 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1627,7 +1627,10 @@ SDValue SelectionDAG::getConstant(uint64_t Val, const SDLoc &DL, EVT VT,
   assert((EltVT.getSizeInBits() >= 64 ||
           (uint64_t)((int64_t)Val >> EltVT.getSizeInBits()) + 1 < 2) &&
          "getConstant with a uint64_t value that doesn't fit in the type!");
-  return getConstant(APInt(EltVT.getSizeInBits(), Val), DL, VT, isT, isO);
+  // TODO: Avoid implicit trunc?
+  return getConstant(APInt(EltVT.getSizeInBits(), Val, /*isSigned=*/false,
+                           /*implicitTrunc=*/true),
+                     DL, VT, isT, isO);
 }
 
 SDValue SelectionDAG::getConstant(const APInt &Val, const SDLoc &DL, EVT VT,
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 7cdd3d47b641d7..22529a922fb3ee 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -4333,7 +4333,8 @@ void SelectionDAGBuilder::visitGetElementPtr(const User &I) {
           GTI.getSequentialElementStride(DAG.getDataLayout());
       // We intentionally mask away the high bits here; ElementSize may not
       // fit in IdxTy.
-      APInt ElementMul(IdxSize, ElementSize.getKnownMinValue());
+      APInt ElementMul(IdxSize, ElementSize.getKnownMinValue(),
+                       /*isSigned=*/false, /*implicitTrunc=*/true);
       bool ElementScalable = ElementSize.isScalable();
 
       // If this is a scalar constant or a splat vector of constants,
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 3e517a51862de3..02b174cc2ff3cc 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -2142,7 +2142,9 @@ ScheduleDAGSDNodes *SelectionDAGISel::CreateScheduler() {
 bool SelectionDAGISel::CheckAndMask(SDValue LHS, ConstantSDNode *RHS,
                                     int64_t DesiredMaskS) const {
   const APInt &ActualMask = RHS->getAPIntValue();
-  const APInt &DesiredMask = APInt(LHS.getValueSizeInBits(), DesiredMaskS);
+  // TODO: Avoid implicit trunc?
+  const APInt &DesiredMask = APInt(LHS.getValueSizeInBits(), DesiredMaskS,
+                                   /*isSigned=*/false, /*implicitTrunc=*/true);
 
   // If the actual mask exactly matches, success!
   if (ActualMask == DesiredMask)
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 2c939967a5e1d9..35d85d9629e618 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -6816,7 +6816,9 @@ TargetLowering::prepareUREMEqFold(EVT SETCCVT, SDValue REMNode,
 
     PAmts.push_back(DAG.getConstant(P, DL, SVT));
     KAmts.push_back(
-        DAG.getConstant(APInt(ShSVT.getSizeInBits(), K), DL, ShSVT));
+        DAG.getConstant(APInt(ShSVT.getSizeInBits(), K, /*isSigned=*/false,
+                              /*implicitTrunc=*/true),
+                        DL, ShSVT));
     QAmts.push_back(DAG.getConstant(Q, DL, SVT));
     return true;
   };
@@ -7087,7 +7089,9 @@ TargetLowering::prepareSREMEqFold(EVT SETCCVT, SDValue REMNode,
     PAmts.push_back(DAG.getConstant(P, DL, SVT));
     AAmts.push_back(DAG.getConstant(A, DL, SVT));
     KAmts.push_back(
-        DAG.getConstant(APInt(ShSVT.getSizeInBits(), K), DL, ShSVT));
+        DAG.getConstant(APInt(ShSVT.getSizeInBits(), K, /*isSigned=*/false,
+                              /*implicitTrunc=*/true),
+                        DL, ShSVT));
     QAmts.push_back(DAG.getConstant(Q, DL, SVT));
     return true;
   };
diff --git a/llvm/lib/IR/ConstantRange.cpp b/llvm/lib/IR/ConstantRange.cpp
index c389d7214defca..61a051821a5dbf 100644
--- a/llvm/lib/IR/ConstantRange.cpp
+++ b/llvm/lib/IR/ConstantRange.cpp
@@ -1952,7 +1952,7 @@ ConstantRange ConstantRange::ctlz(bool ZeroIsPoison) const {
   // Zero is either safe or not in the range. The output range is composed by
   // the result of countLeadingZero of the two extremes.
   return getNonEmpty(APInt(getBitWidth(), getUnsignedMax().countl_zero()),
-                     APInt(getBitWidth(), getUnsignedMin().countl_zero() + 1));
+                     APInt(getBitWidth(), getUnsignedMin().countl_zero()) + 1);
 }
 
 static ConstantRange getUnsignedCountTrailingZerosRange(const APInt &Lower,
@@ -2011,7 +2011,7 @@ ConstantRange ConstantRange::cttz(bool ZeroIsPoison) const {
   }
 
   if (isFullSet())
-    return getNonEmpty(Zero, APInt(BitWidth, BitWidth + 1));
+    return getNonEmpty(Zero, APInt(BitWidth, BitWidth) + 1);
   if (!isWrappedSet())
     return getUnsignedCountTrailingZerosRange(Lower, Upper);
   // The range is wrapped. We decompose it into two ranges, [0, Upper) and
@@ -2056,7 +2056,7 @@ ConstantRange ConstantRange::ctpop() const {
   unsigned BitWidth = getBitWidth();
   APInt Zero = APInt::getZero(BitWidth);
   if (isFullSet())
-    return getNonEmpty(Zero, APInt(BitWidth, BitWidth + 1));
+    return getNonEmpty(Zero, APInt(BitWidth, BitWidth) + 1);
   if (!isWrappedSet())
     return getUnsignedPopCountRange(Lower, Upper);
   // The range is wrapped. We decompose it into two ranges, [0, Upper) and
diff --git a/llvm/lib/IR/Constants.cpp b/llvm/lib/IR/Constants.cpp
index a1c9e925a024fe..6c558798146e0b 100644
--- a/llvm/lib/IR/Constants.cpp
+++ b/llvm/lib/IR/Constants.cpp
@@ -933,7 +933,9 @@ Constant *ConstantInt::get(Type *Ty, uint64_t V, bool isSigned) {
 }
 
 ConstantInt *ConstantInt::get(IntegerType *Ty, uint64_t V, bool isSigned) {
-  return get(Ty->getContext(), APInt(Ty->getBitWidth(), V, isSigned));
+  // TODO: Avoid implicit trunc?
+  return get(Ty->getContext(),
+             APInt(Ty->getBitWidth(), V, isSigned, /*implicitTrunc=*/true));
 }
 
 Constant *ConstantInt::get(Type *Ty, const APInt& V) {
diff --git a/llvm/lib/Support/APInt.cpp b/llvm/lib/Support/APInt.cpp
index fe22e9ba04b6f5..c9d69951e03585 100644
--- a/llvm/lib/Support/APInt.cpp
+++ b/llvm/lib/Support/APInt.cpp
@@ -234,7 +234,8 @@ APInt& APInt::operator-=(uint64_t RHS) {
 APInt APInt::operator*(const APInt& RHS) const {
   assert(BitWidth == RHS.BitWidth && "Bit widths must be the same");
   if (isSingleWord())
-    return APInt(BitWidth, U.VAL * RHS.U.VAL);
+    return APInt(BitWidth, U.VAL * RHS.U.VAL, /*isSigned=*/false,
+                 /*implicitTrunc=*/true);
 
   APInt Result(getMemory(getNumWords()), getBitWidth());
   tcMultiply(Result.U.pVal, U.pVal, RHS.U.pVal, getNumWords());
@@ -455,7 +456,8 @@ APInt APInt::extractBits(unsigned numBits, unsigned bitPosition) const {
          "Illegal bit extraction");
 
   if (isSingleWord())
-    return APInt(numBits, U.VAL >> bitPosition);
+    return APInt(numBits, U.VAL >> bitPosition, /*isSigned=*/false,
+                 /*implicitTrunc=*/true);
 
   unsigned loBit = whichBit(bitPosition);
   unsigned loWord = whichWord(bitPosition);
@@ -463,7 +465,8 @@ APInt APInt::extractBits(unsigned numBits, unsigned bitPosition) const {
 
   // Single word result extracting bits from a single word source.
   if (loWord == hiWord)
-    return APInt(numBits, U.pVal[loWord] >> loBit);
+    return APInt(numBits, U.pVal[loWord] >> loBit, /*isSigned=*/false,
+                 /*implicitTrunc=*/true);
 
   // Extracting bits that start on a source word boundary can be done
   // as a fast memory copy.
@@ -907,7 +910,8 @@ APInt APInt::trunc(unsigned width) const {
   assert(width <= BitWidth && "Invalid APInt Truncate request");
 
   if (width <= APINT_BITS_PER_WORD)
-    return APInt(width, getRawData()[0]);
+    return APInt(width, getRawData()[0], /*isSigned=*/false,
+                 /*implicitTrunc=*/true);
 
   if (width == BitWidth)
     return *this;
@@ -955,7 +959,7 @@ APInt APInt::sext(unsigned Width) const {
   assert(Width >= BitWidth && "Invalid APInt SignExtend request");
 
   if (Width <= APINT_BITS_PER_WORD)
-    return APInt(Width, SignExtend64(U.VAL, BitWidth));
+    return APInt(Width, SignExtend64(U.VAL, BitWidth), /*isSigned*/ true);
 
   if (Width == BitWidth)
     return *this;
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 11c9a992cbdee9..42c9d8e031f124 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -52201,8 +52201,8 @@ static SDValue combineFMulcFCMulc(SDNode *N, SelectionDAG &DAG,
       if (XOR->getOpcode() == ISD::XOR && XOR.hasOneUse()) {
         KnownBits XORRHS = DAG.computeKnownBits(XOR.getOperand(1));
         if (XORRHS.isConstant()) {
-          APInt ConjugationInt32 = APInt(32, 0x80000000, true);
-          APInt ConjugationInt64 = APInt(64, 0x8000000080000000ULL, true);
+          APInt ConjugationInt32 = APInt(32, 0x80000000);
+          APInt ConjugationInt64 = APInt(64, 0x8000000080000000ULL);
           if ((XORRHS.getBitWidth() == 32 &&
                XORRHS.getConstant() == ConjugationInt32) ||
               (XORRHS.getBitWidth() == 64 &&
@@ -52241,7 +52241,7 @@ static SDValue combineFaddCFmul(SDNode *N, SelectionDAG &DAG,
            Flags.hasNoSignedZeros();
   };
   auto IsVectorAllNegativeZero = [&DAG](SDValue Op) {
-    APInt AI = APInt(32, 0x80008000, true);
+    APInt AI = APInt(32, 0x80008000);
     KnownBits Bits = DAG.computeKnownBits(Op);
     return Bits.getBitWidth() == 32 && Bits.isConstant() &&
            Bits.getConstant() == AI;
diff --git a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
index 452fff7898d0ea..2d6cdda159698f 100644
--- a/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/llvm/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -100,7 +100,8 @@ using OffsetAndArgPart = std::pair<int64_t, ArgPart>;
 static Value *createByteGEP(IRBuilderBase &IRB, const DataLayout &DL,
                             Value *Ptr, Type *ResElemTy, int64_t Offset) {
   if (Offset != 0) {
-    APInt APOffset(DL.getIndexTypeSizeInBits(Ptr->getType()), Offset);
+    APInt APOffset(DL.getIndexTypeSizeInBits(Ptr->getType()), Offset,
+                   /*isSigned=*/true);
     Ptr = IRB.CreatePtrAdd(Ptr, IRB.getInt(APOffset));
   }
   return Ptr;
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
index b86f27168303a1..b8b77bec1b900d 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
@@ -679,11 +679,11 @@ static Value *foldSelectICmpLshrAshr(const ICmpInst *IC, Value *TrueVal,
   Value *X, *Y;
   unsigned Bitwidth = CmpRHS->getType()->getScalarSizeInBits();
   if ((Pred != ICmpInst::ICMP_SGT ||
-       !match(CmpRHS,
-              m_SpecificInt_ICMP(ICmpInst::ICMP_SGE, APInt(Bitwidth, -1)))) &&
+       !match(CmpRHS, m_SpecificInt_ICMP(ICmpInst::ICMP_SGE,
+                                         APInt::getAllOnes(Bitwidth)))) &&
       (Pred != ICmpInst::ICMP_SLT ||
-       !match(CmpRHS,
-              m_SpecificInt_ICMP(ICmpInst::ICMP_SGE, APInt(Bitwidth, 0)))))
+       !match(CmpRHS, m_SpecificInt_ICMP(ICmpInst::ICMP_SGE,
+                                         APInt::getZero(Bitwidth)))))
     return nullptr;
 
   // Canonicalize so that ashr is in FalseVal.
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
index 37c8761ca9383d..961e7ac084e41a 100644
--- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -7032,7 +7032,7 @@ static bool reduceSwitchRange(SwitchInst *SI, IRBuilder<> &Builder,
 
   for (auto Case : SI->cases()) {
     auto *Orig = Case.getCaseValue();
-    auto Sub = Orig->getValue() - APInt(Ty->getBitWidth(), Base);
+    auto Sub = Orig->getValue() - APInt(Ty->getBitWidth(), Base, true);
     Case.setValue(cast<ConstantInt>(ConstantInt::get(Ty, Sub.lshr(Shift))));
   }
   return true;
diff --git a/llvm/unittests/ADT/APFixedPointTest.cpp b/llvm/unittests/ADT/APFixedPointTest.cpp
index ecb89fbf76c8bb..a0f43fdfcd7e43 100644
--- a/llvm/unittests/ADT/APFixedPointTest.cpp
+++ b/llvm/unittests/ADT/APFixedPointTest.cpp
@@ -240,19 +240,20 @@ void CheckIntPart(const FixedPointSemantics &Sema, int64_t IntPart) {
   APFixedPoint ValWithFract(
       APInt(Sema.getWidth(),
             relativeShr(IntPart, Sema.getLsbWeight()) + FullFactPart,
-            Sema.isSigned()),
+            Sema.isSigned(), /*implicitTrunc=*/true),
       Sema);
   ASSERT_EQ(ValWithFract.getIntPart(), IntPart);
 
   // Just fraction
-  APFixedPoint JustFract(APInt(Sema.getWidth(), FullFactPart, Sema.isSigned()),
+  APFixedPoint JustFract(APInt(Sema.getWidth(), FullFactPart, Sema.isSigned(),
+                               /*implicitTrunc=*/true),
                          Sema);
   ASSERT_EQ(JustFract.getIntPart(), 0);
 
   // Whole number
   APFixedPoint WholeNum(APInt(Sema.getWidth(),
                               relativeShr(IntPart, Sema.getLsbWeight()),
-                              Sema.isSigned()),
+                              Sema.isSigned(), /*implicitTrunc=*/true),
                         Sema);
   ASSERT_EQ(WholeNum.getIntPart(), IntPart);
 
@@ -260,7 +261,7 @@ void CheckIntPart(const FixedPointSemantics &Sema, int64_t IntPart) {
   if (Sema.isSigned()) {
     APFixedPoint Negative(APInt(Sema.getWidth(),
                                 relativeShr(IntPart, Sema.getLsbWeight()),
-                                Sema.isSigned()),
+                                Sema.isSigned(), /*implicitTrunc=*/true),
                           Sema);
     ASSERT_EQ(Negative.getIntPart(), IntPart);
   }
diff --git a/llvm/unittests/ADT/APIntTest.cpp b/llvm/unittests/ADT/APIntTest.cpp
index eb4b847185f53b..529b2c30d16df9 100644
--- a/llvm/unittests/ADT/APIntTest.cpp
+++ b/llvm/unittests/ADT/APIntTest.cpp
@@ -220,11 +220,12 @@ TEST(APIntTest, i256) {
 }
 
 TEST(APIntTest, i1) {
-  const APInt neg_two(1, static_cast<uint64_t>(-2), true);
+  const APInt neg_two(1, static_cast<uint64_t>(-2), true,
+                      /*implicitTrunc*/ true);
   const APInt neg_one(1, static_cast<uint64_t>(-1), true);
   const APInt zero(1, 0);
   const APInt one(1, 1);
-  const APInt two(1, 2);
+  const APInt two(1, 2, false, /*implicitTrunc*/ true);
 
   EXPECT_EQ(0, neg_two.getSExtValue());
   EXPECT_EQ(-1, neg_one.getSExtValue());
@@ -1110,11 +1111,11 @@ TEST(APIntTest, fromString) {
   EXPECT_EQ(APInt(32, 3), APInt(32,  "+11", 2));
   EXPECT_EQ(APInt(32, 4), APInt(32, "+100", 2));
 
-  EXPECT_EQ(APInt(32, uint64_t(-0LL)), APInt(32,   "-0", 2));
-  EXPECT_EQ(APInt(32, uint64_t(-1LL)), APInt(32,   "-1", 2));
-  EXPECT_EQ(APInt(32, uint64_t(-2LL)), APInt(32,  "-10", 2));
-  EXPECT_EQ(APInt(32, uint64_t(-3LL)), APInt(32,  "-11", 2));
-  EXPECT_EQ(APInt(32, uint64_t(-4LL)), APInt(32, "-100", 2));
+  EXPECT_EQ(APInt(32, uint32_t(-0LL)), APInt(32, "-0", 2));
+  EXPECT_EQ(APInt(32, uint32_t(-1LL)), APInt(32, "-1", 2));
+  EXPECT_EQ(APInt(32, uint32_t(-2LL)), APInt(32, "-10", 2));
+  EXPECT_EQ(APInt(32, uint32_t(-3LL)), APInt(32, "-11", 2));
+  EXPECT_EQ(APInt(32, uint32_t(-4LL)), APInt(32, "-100", 2));
 
   EXPECT_EQ(APInt(32,  0), APInt(32,  "0",  8));
   EXPECT_EQ(APInt(32,  1), APInt(32,  "1",  8));
@@ -1130,12 +1131,12 @@ TEST(APIntTest, fromString) {
   EXPECT_EQ(APInt(32, +15), APInt(32,  "+17", 8));
   EXPECT_EQ(APInt(32, +16), APInt(32,  "+20", 8));
 
-  EXPECT_EQ(APInt(32,  uint64_t(-0LL)), APInt(32,  "-0",  8));
-  EXPECT_EQ(APInt(32,  uint64_t(-1LL)), APInt(32,  "-1",  8));
-  EXPECT_EQ(APInt(32,  uint64_t(-7LL)), APInt(32,  "-7",  8));
-  EXPECT_EQ(APInt(32,  uint64_t(-8LL)), APInt(32,  "-10", 8));
-  EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32,  "-17", 8));
-  EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32,  "-20", 8));
+  EXPECT_EQ(APInt(32, uint32_t(-0LL)), APInt(32, "-0", 8));
+  EXPECT_EQ(APInt(32, uint32_t(-1LL)), APInt(32, "-1", 8));
+  EXPECT_EQ(APInt(32, uint32_t(-7LL)), APInt(32, "-7", 8));
+  EXPECT_EQ(APInt(32, uint32_t(-8LL)), APInt(32, "-10", 8));
+  EXPECT_EQ(APInt(32, uint32_t(-15LL)), APInt(32, "-17", 8));
+  EXPECT_EQ(APInt(32, uint32_t(-16LL)), APInt(32, "-20", 8));
 
   EXPECT_EQ(APInt(32,  0), APInt(32,  "0", 10));
   EXPECT_EQ(APInt(32,  1), APInt(32,  "1", 10));
@@ -1144,12 +1145,12 @@ TEST(APIntTest, fromString) {
   EXPECT_EQ(APInt(32, 19), APInt(32, "19", 10));
   EXPECT_EQ(APInt(32, 20), APInt(32, "20", 10));
 
-  EXPECT_EQ(APInt(32,  uint64_t(-0LL)), APInt(32,  "-0", 10));
-  EXPECT_EQ(APInt(32,  uint64_t(-1LL)), APInt(32,  "-1", 10));
-  EXPECT_EQ(APInt(32,  uint64_t(-9LL)), APInt(32,  "-9", 10));
-  EXPECT_EQ(APInt(32, uint64_t(-10LL)), APInt(32, "-10", 10));
-  EXPECT_EQ(APInt(32, uint64_t(-19LL)), APInt(32, "-19", 10));
-  EXPECT_EQ(APInt(32, uint64_t(-20LL)), APInt(32, "-20", 10));
+  EXPECT_EQ(APInt(32, uint32_t(-0LL)), APInt(32, "-0", 10));
+  EXPECT_EQ(APInt(32, uint32_t(-1LL)), APInt(32, "-1", 10));
+  EXPECT_EQ(APInt(32, uint32_t(-9LL)), APInt(32, "-9", 10));
+  EXPECT_EQ(APInt(32, uint32_t(-10LL)), APInt(32, "-10", 10));
+  EXPECT_EQ(APInt(32, uint32_t(-19LL)), APInt(32, "-19", 10));
+  EXPECT_EQ(APInt(32, uint32_t(-20LL)), APInt(32, "-20", 10));
 
   EXPECT_EQ(APInt(32,  0), APInt(32,  "0", 16));
   EXPECT_EQ(APInt(32,  1), APInt(32,  "1", 16));
@@ -1158,12 +1159,12 @@ TEST(APIntTest, fromString) {
   EXPECT_EQ(APInt(32, 31), APInt(32, "1F", 16));
   EXPECT_EQ(APInt(32, 32), APInt(32, "20", 16));
 
-  EXPECT_EQ(APInt(32,  uint64_t(-0LL)), APInt(32,  "-0", 16));
-  EXPECT_EQ(APInt(32,  uint64_t(-1LL)), APInt(32,  "-1", 16));
-  EXPECT_EQ(APInt(32, uint64_t(-15LL)), APInt(32,  "-F", 16));
-  EXPECT_EQ(APInt(32, uint64_t(-16LL)), APInt(32, "-10", 16));
-  EXPECT_EQ(APInt(32, uint64_t(-31LL)), APInt(32, "-1F", 16));
-  EXPECT_EQ(APInt(32, uint64_t(-32LL)), APInt(32, "-20", 16));
+  EXPECT_EQ(APInt(32, uint32_t(-0LL)), APInt(32, "-0", 16));
+  EXPECT_EQ(APInt(32, uint32_t(-1LL)), APInt(32, "-1", 16));
+  EXPECT_EQ(APInt(32, uint32_t(-15LL)), APInt(32, "-F", 16));
+  EXPECT_EQ(APInt(32, uint32_t(-16LL)), APInt(32, "-10", 16));
+  EXPECT_EQ(APInt(32, uint32_t(-31LL)), APInt(32, "-1F", 16));
+  EXPECT_EQ(APInt(32, uint32_t(-32LL)), APInt(32, "-20", 16));
 
   EXPECT_EQ(APInt(32,  0), APInt(32,  "0", 36));
   EXPECT_EQ(APInt(32,  1), APInt(32,  "1", 36));
@@ -1172,12 +1173,12 @@ TEST(APIntTest, fromString) {
   EXPECT_EQ(APInt(32, 71), APInt(32, "1Z", 36));
   EXPECT_EQ(APInt(32, 72), APInt(32, "20", 36));
 
-  EXPECT_EQ(APInt(32,  uint64_t(-0LL)), APInt(32,  "-0", 36));
-  EXPECT_EQ(APInt(32,  uint64_t(-1LL)), APInt(32,  "-1", 36));
-  EXPECT_EQ(APInt(32, uint64_t(-35LL)), APInt(32,  "-Z", 36));
-  EXPECT_EQ(APInt(32, uint64_t(-36LL)), APInt(32, "-10", 36));
-  EXPECT_EQ(APInt(32, uint64_t(-71LL)), APInt(32, "-1Z", 36));
-  EXPECT_EQ(APInt(32, uint64_t(-72LL)), APInt(32, "-20", 36));
+  EXPECT_EQ(APInt(32, uint32_t(-0LL)), APInt(32, "-0", 36));
+  EXPECT_EQ(APInt(32, uint32_t(-1LL)), APInt(32, "-1", 36));
+  EXPECT_EQ(APInt(32, uint32_t(-35LL)), APInt(32, "-Z", 36));
+  EXPECT_EQ(APInt(32, uint32_t(-36LL)), APInt(32, "-10", 36));
+  EXPECT_EQ(APInt(32, uint32_t(-71LL)), APInt(32, "-1Z", 36));
+  EXPECT_EQ(APInt(32, uint32_t(-72LL)), APInt(32, "-20", 36));
 }
 
 TEST(APIntTest, SaturatingMath) {
@@ -1201,10 +1202,10 @@ TEST(APIntTest, SaturatingMath) {
   EXPECT_EQ(APInt(6, 31), AP_42.truncSSat(6));
   EXPECT_EQ(APInt(5, 15), AP_42.truncSSat(5));
 
-  EXPECT_EQ(APInt(8, -56), AP_200.truncSSat(8));
-  EXPECT_EQ(APInt(7, -56), AP_200.truncSSat(7));
-  EXPECT_EQ(APInt(6, -32), AP_200.truncSSat(6));
-  EXPECT_EQ(APInt(5, -16), AP_200.truncSSat(5));
+  EXPECT_EQ(APInt(8, -56, true), AP_200.truncSSat(8));
+  EXPECT_EQ(APInt(7, -56, true), AP_200.truncSSat(7));
+  EXPECT_EQ(APInt(6, -32, true), AP_200.truncSSat(6));
+  EXPECT_EQ(APInt(5, -16, true), AP_200.truncSSat(5));
 
   EXPECT_EQ(APInt(8, 200), AP_100.uadd_sat(AP_100));
   EXPECT_EQ(APInt(8, 255), AP_100.uadd_sat(AP_200));
@@ -1212,52 +1213,53 @@ TEST(APIntTest, SaturatingMath) {
 
   EXPECT_EQ(APInt(8, 110), AP_10.sadd_sat(AP_100));
   EXPECT_EQ(APInt(8, 127), AP_100.sadd_sat(AP_100));
-  EXPECT_EQ(APInt(8, -128), (-AP_100).sadd_sat(-AP_100));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -128).sadd_sat(APInt(8, -128)));
+  EXPECT_EQ(APInt(8, -128, true), (-AP_100).sadd_sat(-AP_100));
+  EXPECT_EQ(APInt(8, -128, true),
+            APInt(8, -128, true).sadd_sat(APInt(8, -128, true)));
 
   EXPECT_EQ(APInt(8, 90), AP_100.usub_sat(AP_10));
   EXPECT_EQ(APInt(8, 0), AP_100.usub_sat(AP_200));
   EXPECT_EQ(APInt(8, 0), APInt(8, 0).usub_sat(APInt(8, 255)));
 
-  EXPECT_EQ(APInt(8, -90), AP_10.ssub_sat(AP_100));
+  EXPECT_EQ(APInt(8, -90, true), AP_10.ssub_sat(AP_100));
   EXPECT_EQ(APInt(8, 127), AP_100.ssub_sat(-AP_100));
-  EXPECT_EQ(APInt(8, -128), (-AP_100).ssub_sat(AP_100));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -128).ssub_sat(APInt(8, 127)));
+  EXPECT_EQ(APInt(8, -128, true), (-AP_100).ssub_sat(AP_100));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, -128, true).ssub_sat(APInt(8, 127)));
 
   EXPECT_EQ(APInt(8, 250), APInt(8, 50).umul_sat(APInt(8, 5)));
   EXPECT_EQ(APInt(8, 255), APInt(8, 50).umul_sat(APInt(8, 6)));
-  EXPECT_EQ(APInt(8, 255), APInt(8, -128).umul_sat(APInt(8, 3)));
-  EXPECT_EQ(APInt(8, 255), APInt(8, 3).umul_sat(APInt(8, -128)));
-  EXPECT_EQ(APInt(8, 255), APInt(8, -128).umul_sat(APInt(8, -128)));
+  EXPECT_EQ(APInt(8, 255), APInt(8, -128, true).umul_sat(APInt(8, 3)));
+  EXPECT_EQ(APInt(8, 255), APInt(8, 3).umul_sat(APInt(8, -128, true)));
+  EXPECT_EQ(APInt(8, 255), APInt(8, -128, true).umul_sat(APInt(8, -128, true)));
 
   EXPECT_EQ(APInt(8, 125), APInt(8, 25).smul_sat(APInt(8, 5)));
   EXPECT_EQ(APInt(8, 127), APInt(8, 25).smul_sat(APInt(8, 6)));
   EXPECT_EQ(APInt(8, 127), APInt(8, 127).smul_sat(APInt(8, 127)));
-  EXPECT_EQ(APInt(8, -125), APInt(8, -25).smul_sat(APInt(8, 5)));
-  EXPECT_EQ(APInt(8, -125), APInt(8, 25).smul_sat(APInt(8, -5)));
-  EXPECT_EQ(APInt(8, 125), APInt(8, -25).smul_sat(APInt(8, -5)));
+  EXPECT_EQ(APInt(8, -125, true), APInt(8, -25, true).smul_sat(APInt(8, 5)));
+  EXPECT_EQ(APInt(8, -125, true), APInt(8, 25).smul_sat(APInt(8, -5, true)));
+  EXPECT_EQ(APInt(8, 125), APInt(8, -25, true).smul_sat(APInt(8, -5, true)));
   EXPECT_EQ(APInt(8, 125), APInt(8, 25).smul_sat(APInt(8, 5)));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -25).smul_sat(APInt(8, 6)));
-  EXPECT_EQ(APInt(8, -128), APInt(8, 25).smul_sat(APInt(8, -6)));
-  EXPECT_EQ(APInt(8, 127), APInt(8, -25).smul_sat(APInt(8, -6)));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, -25, true).smul_sat(APInt(8, 6)));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, 25).smul_sat(APInt(8, -6, true)));
+  EXPECT_EQ(APInt(8, 127), APInt(8, -25, true).smul_sat(APInt(8, -6, true)));
   EXPECT_EQ(APInt(8, 127), APInt(8, 25).smul_sat(APInt(8, 6)));
 
   EXPECT_EQ(APInt(8, 128), APInt(8, 4).ushl_sat(APInt(8, 5)));
   EXPECT_EQ(APInt(8, 255), APInt(8, 4).ushl_sat(APInt(8, 6)));
   EXPECT_EQ(APInt(8, 128), APInt(8, 1).ushl_sat(APInt(8, 7)));
   EXPECT_EQ(APInt(8, 255), APInt(8, 1).ushl_sat(APInt(8, 8)));
-  EXPECT_EQ(APInt(8, 255), APInt(8, -128).ushl_sat(APInt(8, 2)));
+  EXPECT_EQ(APInt(8, 255), APInt(8, -128, true).ushl_sat(APInt(8, 2)));
   EXPECT_EQ(APInt(8, 255), APInt(8, 64).ushl_sat(APInt(8, 2)));
-  EXPECT_EQ(APInt(8, 255), APInt(8, 64).ushl_sat(APInt(8, -2)));
+  EXPECT_EQ(APInt(8, 255), APInt(8, 64).ushl_sat(APInt(8, -2, true)));
 
   EXPECT_EQ(APInt(8, 64), APInt(8, 4).sshl_sat(APInt(8, 4)));
   EXPECT_EQ(APInt(8, 127), APInt(8, 4).sshl_sat(APInt(8, 5)));
   EXPECT_EQ(APInt(8, 127), APInt(8, 1).sshl_sat(APInt(8, 8)));
-  EXPECT_EQ(APInt(8, -64), APInt(8, -4).sshl_sat(APInt(8, 4)));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -4).sshl_sat(APInt(8, 5)));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -4).sshl_sat(APInt(8, 6)));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -1).sshl_sat(APInt(8, 7)));
-  EXPECT_EQ(APInt(8, -128), APInt(8, -1).sshl_sat(APInt(8, 8)));
+  EXPECT_EQ(APInt(8, -64, true), APInt(8, -4, true).sshl_sat(APInt(8, 4)));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, -4, true).sshl_sat(APInt(8, 5)));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, -4, true).sshl_sat(APInt(8, 6)));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, -1, true).sshl_sat(APInt(8, 7)));
+  EXPECT_EQ(APInt(8, -128, true), APInt(8, -1, true).sshl_sat(APInt(8, 8)));
 }
 
 TEST(APIntTest, FromArray) {
@@ -1399,39 +1401,39 @@ TEST(APIntTest, toString) {
   S.clear();
 
   isSigned = false;
-  APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
+  APInt(8, 255).toString(S, 2, isSigned, true);
   EXPECT_EQ(std::string(S), "0b11111111");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 8, isSigned, true);
+  APInt(8, 255).toString(S, 8, isSigned, true);
   EXPECT_EQ(std::string(S), "0377");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 10, isSigned, true);
+  APInt(8, 255).toString(S, 10, isSigned, true);
   EXPECT_EQ(std::string(S), "255");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 16, isSigned, true, /*UpperCase=*/false);
+  APInt(8, 255).toString(S, 16, isSigned, true, /*UpperCase=*/false);
   EXPECT_EQ(std::string(S), "0xff");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 16, isSigned, true);
+  APInt(8, 255).toString(S, 16, isSigned, true);
   EXPECT_EQ(std::string(S), "0xFF");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
+  APInt(8, 255).toString(S, 36, isSigned, false);
   EXPECT_EQ(std::string(S), "73");
   S.clear();
 
   isSigned = true;
-  APInt(8, 255, isSigned).toString(S, 2, isSigned, true);
+  APInt(8, 255).toString(S, 2, isSigned, true);
   EXPECT_EQ(std::string(S), "-0b1");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 8, isSigned, true);
+  APInt(8, 255).toString(S, 8, isSigned, true);
   EXPECT_EQ(std::string(S), "-01");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 10, isSigned, true);
+  APInt(8, 255).toString(S, 10, isSigned, true);
   EXPECT_EQ(std::string(S), "-1");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 16, isSigned, true);
+  APInt(8, 255).toString(S, 16, isSigned, true);
   EXPECT_EQ(std::string(S), "-0x1");
   S.clear();
-  APInt(8, 255, isSigned).toString(S, 36, isSigned, false);
+  APInt(8, 255).toString(S, 36, isSigned, false);
   EXPECT_EQ(std::string(S), "-1");
   S.clear();
 
@@ -1514,7 +1516,7 @@ TEST(APIntTest, Rotate) {
   EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(33, 33)));
   EXPECT_EQ(APInt(32, (1 << 8)), APInt(32, 1).rotl(APInt(32, 40)));
   EXPECT_EQ(APInt(32, (1 << 30)), APInt(32, 1).rotl(APInt(31, 30)));
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotl(APInt(31, 31)));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotl(APInt(31, 31)));
 
   EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotl(APInt(1, 0)));
   EXPECT_EQ(APInt(32, 2), APInt(32, 1).rotl(APInt(1, 1)));
@@ -1541,24 +1543,24 @@ TEST(APIntTest, Rotate) {
   EXPECT_EQ(APInt(8, 16),  APInt(8, 1).rotr(4));
   EXPECT_EQ(APInt(8, 1),   APInt(8, 1).rotr(8));
 
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(33));
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(32, 33)));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(33));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(APInt(32, 33)));
 
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(33));
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(32, 33)));
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(33, 33)));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(33));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(APInt(32, 33)));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(APInt(33, 33)));
   EXPECT_EQ(APInt(32, (1 << 24)), APInt(32, 1).rotr(APInt(32, 40)));
 
   EXPECT_EQ(APInt(32, (1 << 2)), APInt(32, 1).rotr(APInt(31, 30)));
   EXPECT_EQ(APInt(32, (1 << 1)), APInt(32, 1).rotr(APInt(31, 31)));
 
   EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotr(APInt(1, 0)));
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(1, 1)));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(APInt(1, 1)));
 
   EXPECT_EQ(APInt(32, (1 << 28)), APInt(32, 1).rotr(APInt(3, 4)));
 
   EXPECT_EQ(APInt(32, 1), APInt(32, 1).rotr(APInt(64, 64)));
-  EXPECT_EQ(APInt(32, (1 << 31)), APInt(32, 1).rotr(APInt(64, 65)));
+  EXPECT_EQ(APInt(32, (1u << 31)), APInt(32, 1).rotr(APInt(64, 65)));
 
   EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(7, 3)));
   EXPECT_EQ(APInt(7, 48), APInt(7, 3).rotr(APInt(7, 10)));
@@ -1580,7 +1582,7 @@ TEST(APIntTest, Splat) {
 
   APInt ValB(3, 5);
   EXPECT_EQ(APInt(4, 0xD), APInt::getSplat(4, ValB));
-  EXPECT_EQ(APInt(15, 0xDB6D), APInt::getSplat(15, ValB));
+  EXPECT_EQ(APInt(15, 0x5B6D), APInt::getSplat(15, ValB));
 }
 
 TEST(APIntTest, tcDecrement) {
@@ -2857,7 +2859,7 @@ TEST(APIntTest, sext) {
   EXPECT_EQ(31U, i32_min.countr_zero());
   EXPECT_EQ(32U, i32_min.popcount());
 
-  APInt i32_neg1(APInt(32, ~uint64_t(0)).sext(63));
+  APInt i32_neg1(APInt(32, ~uint32_t(0)).sext(63));
   EXPECT_EQ(i32_neg1, i32_neg1.sext(63));
   EXPECT_EQ(63U, i32_neg1.countl_one());
   EXPECT_EQ(0U, i32_neg1.countr_zero());
@@ -2990,7 +2992,7 @@ TEST(APIntTest, RoundingUDiv) {
 
 TEST(APIntTest, RoundingSDiv) {
   for (int64_t Ai = -128; Ai <= 127; Ai++) {
-    APInt A(8, Ai);
+    APInt A(8, Ai, true);
 
     if (Ai != 0) {
       APInt Zero(8, 0);
@@ -3003,7 +3005,7 @@ TEST(APIntTest, RoundingSDiv) {
       if (Bi == 0)
         continue;
 
-      APInt B(8, Bi);
+      APInt B(8, Bi, true);
       APInt QuoTowardZero = A.sdiv(B);
       {
         APInt Quo = APIntOps::RoundingSDiv(A, B, APInt::Rounding::UP);
@@ -3062,10 +3064,10 @@ TEST(APIntTest, Average) {
   APInt Ap100(32, +100);
   APInt Ap101(32, +101);
   APInt Ap200(32, +200);
-  APInt Am1(32, -1);
-  APInt Am100(32, -100);
-  APInt Am101(32, -101);
-  APInt Am200(32, -200);
+  APInt Am1(32, -1, true);
+  APInt Am100(32, -100, true);
+  APInt Am101(32, -101, true);
+  APInt Am200(32, -200, true);
   APInt AmSMin = APInt::getSignedMinValue(32);
   APInt ApSMax = APInt::getSignedMaxValue(32);
 
@@ -3075,7 +3077,7 @@ TEST(APIntTest, Average) {
   EXPECT_EQ(APIntOps::RoundingSDiv(Ap100 + Ap200, A2, APInt::Rounding::UP),
             APIntOps::avgCeilS(Ap100, Ap200));
 
-  EXPECT_EQ(APInt(32, -150), APIntOps::avgFloorS(Am100, Am200));
+  EXPECT_EQ(APInt(32, -150, true), APIntOps::avgFloorS(Am100, Am200));
   EXPECT_EQ(APIntOps::RoundingSDiv(Am100 + Am200, A2, APInt::Rounding::DOWN),
             APIntOps::avgFloorS(Am100, Am200));
   EXPECT_EQ(APIntOps::RoundingSDiv(Am100 + Am200, A2, APInt::Rounding::UP),
@@ -3088,10 +3090,10 @@ TEST(APIntTest, Average) {
   EXPECT_EQ(APIntOps::RoundingSDiv(Ap100 + Ap101, A2, APInt::Rounding::UP),
             APIntOps::avgCeilS(Ap100, Ap101));
 
-  EXPECT_EQ(APInt(32, -101), APIntOps::avgFloorS(Am100, Am101));
+  EXPECT_EQ(APInt(32, -101, true), APIntOps::avgFloorS(Am100, Am101));
   EXPECT_EQ(APIntOps::RoundingSDiv(Am100 + Am101, A2, APInt::Rounding::DOWN),
             APIntOps::avgFloorS(Am100, Am101));
-  EXPECT_EQ(APInt(32, -100), APIntOps::avgCeilS(Am100, Am101));
+  EXPECT_EQ(APInt(32, -100, true), APIntOps::avgCeilS(Am100, Am101));
   EXPECT_EQ(APIntOps::RoundingSDiv(Am100 + Am101, A2, APInt::Rounding::UP),
             APIntOps::avgCeilS(Am100, Am101));
 
@@ -3303,7 +3305,8 @@ TEST(APIntTest, SolveQuadraticEquationWrap) {
       for (int B = Low; B != High; ++B) {
         for (int C = Low; C != High; ++C) {
           std::optional<APInt> S = APIntOps::SolveQuadraticEquationWrap(
-              APInt(Width, A), APInt(Width, B), APInt(Width, C), Width);
+              APInt(Width, A, true), APInt(Width, B, true),
+              APInt(Width, C, true), Width);
           if (S)
             Validate(A, B, C, Width, S->getSExtValue());
         }
@@ -3398,10 +3401,10 @@ TEST(APIntTest, GetMostSignificantDifferentBitExaustive) {
 }
 
 TEST(APIntTest, SignbitZeroChecks) {
-  EXPECT_TRUE(APInt(8, -1).isNegative());
-  EXPECT_FALSE(APInt(8, -1).isNonNegative());
-  EXPECT_FALSE(APInt(8, -1).isStrictlyPositive());
-  EXPECT_TRUE(APInt(8, -1).isNonPositive());
+  EXPECT_TRUE(APInt(8, -1, true).isNegative());
+  EXPECT_FALSE(APInt(8, -1, true).isNonNegative());
+  EXPECT_FALSE(APInt(8, -1, true).isStrictlyPositive());
+  EXPECT_TRUE(APInt(8, -1, true).isNonPositive());
 
   EXPECT_FALSE(APInt(8, 0).isNegative());
   EXPECT_TRUE(APInt(8, 0).isNonNegative());
diff --git a/llvm/unittests/ADT/APSIntTest.cpp b/llvm/unittests/ADT/APSIntTest.cpp
index f804eba3ca83eb..2d2a64433da94d 100644
--- a/llvm/unittests/ADT/APSIntTest.cpp
+++ b/llvm/unittests/ADT/APSIntTest.cpp
@@ -74,14 +74,14 @@ TEST(APSIntTest, getExtValue) {
   EXPECT_TRUE(APSInt(APInt(3, 7), false).isSigned());
   EXPECT_TRUE(APSInt(APInt(4, 7), true).isUnsigned());
   EXPECT_TRUE(APSInt(APInt(4, 7), false).isSigned());
-  EXPECT_TRUE(APSInt(APInt(4, -7), true).isUnsigned());
-  EXPECT_TRUE(APSInt(APInt(4, -7), false).isSigned());
+  EXPECT_TRUE(APSInt(APInt(4, -7, true), true).isUnsigned());
+  EXPECT_TRUE(APSInt(APInt(4, -7, true), false).isSigned());
   EXPECT_EQ(7, APSInt(APInt(3, 7), true).getExtValue());
   EXPECT_EQ(-1, APSInt(APInt(3, 7), false).getExtValue());
   EXPECT_EQ(7, APSInt(APInt(4, 7), true).getExtValue());
   EXPECT_EQ(7, APSInt(APInt(4, 7), false).getExtValue());
-  EXPECT_EQ(9, APSInt(APInt(4, -7), true).getExtValue());
-  EXPECT_EQ(-7, APSInt(APInt(4, -7), false).getExtValue());
+  EXPECT_EQ(9, APSInt(APInt(4, -7, true), true).getExtValue());
+  EXPECT_EQ(-7, APSInt(APInt(4, -7, true), false).getExtValue());
 }
 TEST(APSIntTest, tryExtValue) {
   ASSERT_EQ(-7, APSInt(APInt(64, -7), false).tryExtValue().value_or(42));
diff --git a/llvm/unittests/ADT/StringExtrasTest.cpp b/llvm/unittests/ADT/StringExtrasTest.cpp
index 1fb1fea6577911..eb202bad865d30 100644
--- a/llvm/unittests/ADT/StringExtrasTest.cpp
+++ b/llvm/unittests/ADT/StringExtrasTest.cpp
@@ -296,11 +296,11 @@ TEST(StringExtrasTest, toStringAPInt) {
   EXPECT_EQ(toString(APInt(8, 255, isSigned), 36, isSigned, false), "73");
 
   isSigned = true;
-  EXPECT_EQ(toString(APInt(8, 255, isSigned), 2, isSigned, true), "-0b1");
-  EXPECT_EQ(toString(APInt(8, 255, isSigned), 8, isSigned, true), "-01");
-  EXPECT_EQ(toString(APInt(8, 255, isSigned), 10, isSigned, true), "-1");
-  EXPECT_EQ(toString(APInt(8, 255, isSigned), 16, isSigned, true), "-0x1");
-  EXPECT_EQ(toString(APInt(8, 255, isSigned), 36, isSigned, false), "-1");
+  EXPECT_EQ(toString(APInt(8, -1, isSigned), 2, isSigned, true), "-0b1");
+  EXPECT_EQ(toString(APInt(8, -1, isSigned), 8, isSigned, true), "-01");
+  EXPECT_EQ(toString(APInt(8, -1, isSigned), 10, isSigned, true), "-1");
+  EXPECT_EQ(toString(APInt(8, -1, isSigned), 16, isSigned, true), "-0x1");
+  EXPECT_EQ(toString(APInt(8, -1, isSigned), 36, isSigned, false), "-1");
 }
 
 TEST(StringExtrasTest, toStringAPSInt) {
diff --git a/llvm/unittests/Analysis/ScalarEvolutionTest.cpp b/llvm/unittests/Analysis/ScalarEvolutionTest.cpp
index d4d90d80f4cea1..37c61e4e4fa714 100644
--- a/llvm/unittests/Analysis/ScalarEvolutionTest.cpp
+++ b/llvm/unittests/Analysis/ScalarEvolutionTest.cpp
@@ -984,7 +984,7 @@ TEST_F(ScalarEvolutionsTest, SCEVAddRecFromPHIwithLargeConstantAccum) {
   // entry:
   BranchInst::Create(LoopBB, EntryBB);
   // loop:
-  auto *MinInt32 = ConstantInt::get(Context, APInt(32, 0x80000000U, true));
+  auto *MinInt32 = ConstantInt::get(Context, APInt(32, 0x80000000U));
   auto *Int32_16 = ConstantInt::get(Context, APInt(32, 16));
   auto *Br = BranchInst::Create(
       LoopBB, ExitBB, UndefValue::get(Type::getInt1Ty(Context)), LoopBB);
diff --git a/llvm/unittests/IR/ConstantRangeTest.cpp b/llvm/unittests/IR/ConstantRangeTest.cpp
index 4815117458b9af..e1d9b3e387b200 100644
--- a/llvm/unittests/IR/ConstantRangeTest.cpp
+++ b/llvm/unittests/IR/ConstantRangeTest.cpp
@@ -372,10 +372,10 @@ TEST_F(ConstantRangeTest, GetMinsAndMaxes) {
   EXPECT_EQ(Some.getSignedMax(), APInt(16, 0xaa9));
   EXPECT_EQ(Wrap.getSignedMax(), APInt(16, INT16_MAX));
 
-  EXPECT_EQ(Full.getSignedMin(), APInt(16, (uint64_t)INT16_MIN));
+  EXPECT_EQ(Full.getSignedMin(), APInt(16, (uint16_t)INT16_MIN));
   EXPECT_EQ(One.getSignedMin(), APInt(16, 0xa));
   EXPECT_EQ(Some.getSignedMin(), APInt(16, 0xa));
-  EXPECT_EQ(Wrap.getSignedMin(), APInt(16, (uint64_t)INT16_MIN));
+  EXPECT_EQ(Wrap.getSignedMin(), APInt(16, (uint16_t)INT16_MIN));
 
   // Found by Klee
   EXPECT_EQ(ConstantRange(APInt(4, 7), APInt(4, 0)).getSignedMax(),
@@ -487,7 +487,7 @@ TEST_F(ConstantRangeTest, SExt) {
                                  APInt(20, INT16_MAX + 1, true)));
 
   EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, 140)).signExtend(16),
-            ConstantRange(APInt(16, -128), APInt(16, 128)));
+            ConstantRange(APInt(16, -128, true), APInt(16, 128)));
 
   EXPECT_EQ(ConstantRange(APInt(16, 0x0200), APInt(16, 0x8000)).signExtend(19),
             ConstantRange(APInt(19, 0x0200), APInt(19, 0x8000)));
@@ -516,7 +516,7 @@ TEST_F(ConstantRangeTest, IntersectWith) {
   EXPECT_TRUE(LHS.intersectWith(RHS) == LHS);
 
   // previous bug: intersection of [min, 3) and [2, max) should be 2
-  LHS = ConstantRange(APInt(32, -2147483646), APInt(32, 3));
+  LHS = ConstantRange(APInt(32, (uint32_t)-2147483646), APInt(32, 3));
   RHS = ConstantRange(APInt(32, 2), APInt(32, 2147483646));
   EXPECT_EQ(LHS.intersectWith(RHS), ConstantRange(APInt(32, 2)));
 
@@ -744,45 +744,51 @@ TEST_F(ConstantRangeTest, AddWithNoWrap) {
   EXPECT_NE(Some.addWithNoWrap(Full, OBO::NoSignedWrap), Full);
   EXPECT_EQ(Full.addWithNoWrap(ConstantRange(APInt(16, 1), APInt(16, 2)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(16, INT16_MIN + 1), APInt(16, INT16_MIN)));
+            ConstantRange(APInt(16, INT16_MIN + 1, true),
+                          APInt(16, INT16_MIN, true)));
   EXPECT_EQ(ConstantRange(APInt(16, 1), APInt(16, 2))
                 .addWithNoWrap(Full, OBO::NoSignedWrap),
-            ConstantRange(APInt(16, INT16_MIN + 1), APInt(16, INT16_MIN)));
-  EXPECT_EQ(Full.addWithNoWrap(ConstantRange(APInt(16, -1), APInt(16, 0)),
+            ConstantRange(APInt(16, INT16_MIN + 1, true),
+                          APInt(16, INT16_MIN, true)));
+  EXPECT_EQ(Full.addWithNoWrap(ConstantRange(APInt(16, -1, true), APInt(16, 0)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(16, INT16_MIN), APInt(16, INT16_MAX)));
+            ConstantRange(APInt(16, INT16_MIN, true), APInt(16, INT16_MAX)));
   EXPECT_EQ(ConstantRange(APInt(8, 100), APInt(8, 120))
                 .addWithNoWrap(ConstantRange(APInt(8, 120), APInt(8, 123)),
                                OBO::NoSignedWrap),
             ConstantRange(8, false));
-  EXPECT_EQ(ConstantRange(APInt(8, -120), APInt(8, -100))
-                .addWithNoWrap(ConstantRange(APInt(8, -110), APInt(8, -100)),
-                               OBO::NoSignedWrap),
+  EXPECT_EQ(ConstantRange(APInt(8, -120, true), APInt(8, -100, true))
+                .addWithNoWrap(
+                    ConstantRange(APInt(8, -110, true), APInt(8, -100, true)),
+                    OBO::NoSignedWrap),
             ConstantRange(8, false));
-  EXPECT_EQ(ConstantRange(APInt(8, 0), APInt(8, 101))
-                .addWithNoWrap(ConstantRange(APInt(8, -128), APInt(8, 28)),
-                               OBO::NoSignedWrap),
-            ConstantRange(8, true));
-  EXPECT_EQ(ConstantRange(APInt(8, 0), APInt(8, 101))
-                .addWithNoWrap(ConstantRange(APInt(8, -120), APInt(8, 29)),
-                               OBO::NoSignedWrap),
-            ConstantRange(APInt(8, -120), APInt(8, -128)));
-  EXPECT_EQ(ConstantRange(APInt(8, -50), APInt(8, 50))
+  EXPECT_EQ(
+      ConstantRange(APInt(8, 0), APInt(8, 101))
+          .addWithNoWrap(ConstantRange(APInt(8, -128, true), APInt(8, 28)),
+                         OBO::NoSignedWrap),
+      ConstantRange(8, true));
+  EXPECT_EQ(
+      ConstantRange(APInt(8, 0), APInt(8, 101))
+          .addWithNoWrap(ConstantRange(APInt(8, -120, true), APInt(8, 29)),
+                         OBO::NoSignedWrap),
+      ConstantRange(APInt(8, -120, true), APInt(8, -128, true)));
+  EXPECT_EQ(ConstantRange(APInt(8, -50, true), APInt(8, 50))
                 .addWithNoWrap(ConstantRange(APInt(8, 10), APInt(8, 20)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(8, -40), APInt(8, 69)));
+            ConstantRange(APInt(8, -40, true), APInt(8, 69)));
   EXPECT_EQ(ConstantRange(APInt(8, 10), APInt(8, 20))
-                .addWithNoWrap(ConstantRange(APInt(8, -50), APInt(8, 50)),
+                .addWithNoWrap(ConstantRange(APInt(8, -50, true), APInt(8, 50)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(8, -40), APInt(8, 69)));
-  EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, -10))
+            ConstantRange(APInt(8, -40, true), APInt(8, 69)));
+  EXPECT_EQ(ConstantRange(APInt(8, 120), APInt(8, -10, true))
                 .addWithNoWrap(ConstantRange(APInt(8, 5), APInt(8, 20)),
                                OBO::NoSignedWrap),
             ConstantRange(APInt(8, 125), APInt(8, 9)));
-  EXPECT_EQ(ConstantRange(APInt(8, 5), APInt(8, 20))
-                .addWithNoWrap(ConstantRange(APInt(8, 120), APInt(8, -10)),
-                               OBO::NoSignedWrap),
-            ConstantRange(APInt(8, 125), APInt(8, 9)));
+  EXPECT_EQ(
+      ConstantRange(APInt(8, 5), APInt(8, 20))
+          .addWithNoWrap(ConstantRange(APInt(8, 120), APInt(8, -10, true)),
+                         OBO::NoSignedWrap),
+      ConstantRange(APInt(8, 125), APInt(8, 9)));
 
   TestBinaryOpExhaustive(
       [](const ConstantRange &CR1, const ConstantRange &CR2) {
@@ -827,15 +833,15 @@ TEST_F(ConstantRangeTest, AddWithNoWrap) {
   EXPECT_EQ(ConstantRange(APInt(8, 10), APInt(8, 20))
                 .addWithNoWrap(ConstantRange(APInt(8, 50), APInt(8, 200)),
                                OBO::NoUnsignedWrap),
-            ConstantRange(APInt(8, 60), APInt(8, -37)));
-  EXPECT_EQ(ConstantRange(APInt(8, 20), APInt(8, -30))
+            ConstantRange(APInt(8, 60), APInt(8, -37, true)));
+  EXPECT_EQ(ConstantRange(APInt(8, 20), APInt(8, -30, true))
                 .addWithNoWrap(ConstantRange(APInt(8, 5), APInt(8, 20)),
                                OBO::NoUnsignedWrap),
-            ConstantRange(APInt(8, 25), APInt(8, -11)));
+            ConstantRange(APInt(8, 25), APInt(8, -11, true)));
   EXPECT_EQ(ConstantRange(APInt(8, 5), APInt(8, 20))
-                .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, -30)),
+                .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, -30, true)),
                                OBO::NoUnsignedWrap),
-            ConstantRange(APInt(8, 25), APInt(8, -11)));
+            ConstantRange(APInt(8, 25), APInt(8, -11, true)));
 
   TestBinaryOpExhaustive(
       [](const ConstantRange &CR1, const ConstantRange &CR2) {
@@ -853,7 +859,7 @@ TEST_F(ConstantRangeTest, AddWithNoWrap) {
   EXPECT_EQ(ConstantRange(APInt(8, 50), APInt(8, 100))
                 .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, 70)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(8, 70), APInt(8, -128)));
+            ConstantRange(APInt(8, 70), APInt(8, -128, true)));
   EXPECT_EQ(ConstantRange(APInt(8, 50), APInt(8, 100))
                 .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, 70)),
                                OBO::NoUnsignedWrap),
@@ -861,17 +867,17 @@ TEST_F(ConstantRangeTest, AddWithNoWrap) {
   EXPECT_EQ(ConstantRange(APInt(8, 50), APInt(8, 100))
                 .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, 70)),
                                OBO::NoUnsignedWrap | OBO::NoSignedWrap),
-            ConstantRange(APInt(8, 70), APInt(8, -128)));
+            ConstantRange(APInt(8, 70), APInt(8, -128, true)));
 
-  EXPECT_EQ(ConstantRange(APInt(8, -100), APInt(8, -50))
+  EXPECT_EQ(ConstantRange(APInt(8, -100, true), APInt(8, -50, true))
                 .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, 30)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(8, -80), APInt(8, -21)));
-  EXPECT_EQ(ConstantRange(APInt(8, -100), APInt(8, -50))
+            ConstantRange(APInt(8, -80, true), APInt(8, -21, true)));
+  EXPECT_EQ(ConstantRange(APInt(8, -100, true), APInt(8, -50, true))
                 .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, 30)),
                                OBO::NoUnsignedWrap),
             ConstantRange(APInt(8, 176), APInt(8, 235)));
-  EXPECT_EQ(ConstantRange(APInt(8, -100), APInt(8, -50))
+  EXPECT_EQ(ConstantRange(APInt(8, -100, true), APInt(8, -50, true))
                 .addWithNoWrap(ConstantRange(APInt(8, 20), APInt(8, 30)),
                                OBO::NoUnsignedWrap | OBO::NoSignedWrap),
             ConstantRange(APInt(8, 176), APInt(8, 235)));
@@ -1004,17 +1010,17 @@ TEST_F(ConstantRangeTest, Multiply) {
             ConstantRange(APInt(8, 250), APInt(8, 253)));
 
   // TODO: This should be return [-2, 0]
-  EXPECT_EQ(ConstantRange(APInt(8, -2)).multiply(
-              ConstantRange(APInt(8, 0), APInt(8, 2))),
-            ConstantRange(APInt(8, -2), APInt(8, 1)));
+  EXPECT_EQ(ConstantRange(APInt(8, -2, true))
+                .multiply(ConstantRange(APInt(8, 0), APInt(8, 2))),
+            ConstantRange(APInt(8, -2, true), APInt(8, 1)));
 
   // Multiplication by -1 should give precise results.
-  EXPECT_EQ(ConstantRange(APInt(8, 3), APInt(8, -11))
-                .multiply(ConstantRange(APInt(8, -1))),
-            ConstantRange(APInt(8, 12), APInt(8, -2)));
-  EXPECT_EQ(ConstantRange(APInt(8, -1))
-                .multiply(ConstantRange(APInt(8, 3), APInt(8, -11))),
-            ConstantRange(APInt(8, 12), APInt(8, -2)));
+  EXPECT_EQ(ConstantRange(APInt(8, 3), APInt(8, -11, true))
+                .multiply(ConstantRange(APInt(8, -1, true))),
+            ConstantRange(APInt(8, 12), APInt(8, -2, true)));
+  EXPECT_EQ(ConstantRange(APInt(8, -1, true))
+                .multiply(ConstantRange(APInt(8, 3), APInt(8, -11, true))),
+            ConstantRange(APInt(8, 12), APInt(8, -2, true)));
 
   TestBinaryOpExhaustive(
       [](const ConstantRange &CR1, const ConstantRange &CR2) {
@@ -1185,11 +1191,11 @@ TEST_F(ConstantRangeTest, SMax) {
   EXPECT_EQ(Empty.smax(Wrap), Empty);
   EXPECT_EQ(Empty.smax(One), Empty);
   EXPECT_EQ(Some.smax(Some), Some);
-  EXPECT_EQ(Some.smax(Wrap), ConstantRange(APInt(16, 0xa),
-                                           APInt(16, (uint64_t)INT16_MIN)));
+  EXPECT_EQ(Some.smax(Wrap),
+            ConstantRange(APInt(16, 0xa), APInt(16, (uint16_t)INT16_MIN)));
   EXPECT_EQ(Some.smax(One), Some);
-  EXPECT_EQ(Wrap.smax(One), ConstantRange(APInt(16, 0xa),
-                                          APInt(16, (uint64_t)INT16_MIN)));
+  EXPECT_EQ(Wrap.smax(One),
+            ConstantRange(APInt(16, 0xa), APInt(16, (uint16_t)INT16_MIN)));
   EXPECT_EQ(One.smax(One), One);
 
   TestBinaryOpExhaustive(
@@ -1231,20 +1237,20 @@ TEST_F(ConstantRangeTest, UMin) {
 TEST_F(ConstantRangeTest, SMin) {
   EXPECT_EQ(Full.smin(Full), Full);
   EXPECT_EQ(Full.smin(Empty), Empty);
-  EXPECT_EQ(Full.smin(Some), ConstantRange(APInt(16, (uint64_t)INT16_MIN),
-                                           APInt(16, 0xaaa)));
+  EXPECT_EQ(Full.smin(Some),
+            ConstantRange(APInt(16, (uint16_t)INT16_MIN), APInt(16, 0xaaa)));
   EXPECT_EQ(Full.smin(Wrap), Full);
   EXPECT_EQ(Empty.smin(Empty), Empty);
   EXPECT_EQ(Empty.smin(Some), Empty);
   EXPECT_EQ(Empty.smin(Wrap), Empty);
   EXPECT_EQ(Empty.smin(One), Empty);
   EXPECT_EQ(Some.smin(Some), Some);
-  EXPECT_EQ(Some.smin(Wrap), ConstantRange(APInt(16, (uint64_t)INT16_MIN),
-                                           APInt(16, 0xaaa)));
+  EXPECT_EQ(Some.smin(Wrap),
+            ConstantRange(APInt(16, (uint16_t)INT16_MIN), APInt(16, 0xaaa)));
   EXPECT_EQ(Some.smin(One), One);
   EXPECT_EQ(Wrap.smin(Wrap), Wrap);
-  EXPECT_EQ(Wrap.smin(One), ConstantRange(APInt(16, (uint64_t)INT16_MIN),
-                                          APInt(16, 0xb)));
+  EXPECT_EQ(Wrap.smin(One),
+            ConstantRange(APInt(16, (uint16_t)INT16_MIN), APInt(16, 0xb)));
   EXPECT_EQ(One.smin(One), One);
 
   TestBinaryOpExhaustive(
@@ -1320,8 +1326,8 @@ TEST_F(ConstantRangeTest, SDiv) {
     }
 
     // If there is a non-full signed envelope, that should be the result.
-    APInt SMin(Bits, Results.find_first() - Bias);
-    APInt SMax(Bits, Results.find_last() - Bias);
+    APInt SMin(Bits, Results.find_first() - Bias, true);
+    APInt SMax(Bits, Results.find_last() - Bias, true);
     ConstantRange Envelope = ConstantRange::getNonEmpty(SMin, SMax + 1);
     if (!Envelope.isFullSet()) {
       EXPECT_EQ(Envelope, CR);
@@ -1340,8 +1346,8 @@ TEST_F(ConstantRangeTest, SDiv) {
         --LastPos;
     }
 
-    APInt WMax(Bits, LastNeg);
-    APInt WMin(Bits, LastPos);
+    APInt WMax(Bits, LastNeg, true);
+    APInt WMin(Bits, LastPos, true);
     ConstantRange Wrapped = ConstantRange::getNonEmpty(WMin, WMax + 1);
     EXPECT_EQ(Wrapped, CR);
   });
@@ -1394,8 +1400,8 @@ TEST_F(ConstantRangeTest, SRem) {
   EXPECT_EQ(Full.srem(Full), ConstantRange(APInt::getSignedMinValue(16) + 1,
                                            APInt::getSignedMinValue(16)));
 
-  ConstantRange PosMod(APInt(16, 10), APInt(16, 21));  // [10, 20]
-  ConstantRange NegMod(APInt(16, -20), APInt(16, -9)); // [-20, -10]
+  ConstantRange PosMod(APInt(16, 10), APInt(16, 21));              // [10, 20]
+  ConstantRange NegMod(APInt(16, -20, true), APInt(16, -9, true)); // [-20, -10]
   ConstantRange IntMinMod(APInt::getSignedMinValue(16));
 
   ConstantRange Expected(16, true);
@@ -1405,12 +1411,12 @@ TEST_F(ConstantRangeTest, SRem) {
   Expected = ConstantRange(APInt(16, 0), APInt(16, 20));
   EXPECT_EQ(PosLargeLHS.srem(PosMod), Expected);
   EXPECT_EQ(PosLargeLHS.srem(NegMod), Expected);
-  ConstantRange NegLargeLHS(APInt(16, -40), APInt(16, 1));
-  Expected = ConstantRange(APInt(16, -19), APInt(16, 1));
+  ConstantRange NegLargeLHS(APInt(16, -40, true), APInt(16, 1));
+  Expected = ConstantRange(APInt(16, -19, true), APInt(16, 1));
   EXPECT_EQ(NegLargeLHS.srem(PosMod), Expected);
   EXPECT_EQ(NegLargeLHS.srem(NegMod), Expected);
-  ConstantRange PosNegLargeLHS(APInt(16, -32), APInt(16, 38));
-  Expected = ConstantRange(APInt(16, -19), APInt(16, 20));
+  ConstantRange PosNegLargeLHS(APInt(16, -32, true), APInt(16, 38));
+  Expected = ConstantRange(APInt(16, -19, true), APInt(16, 20));
   EXPECT_EQ(PosNegLargeLHS.srem(PosMod), Expected);
   EXPECT_EQ(PosNegLargeLHS.srem(NegMod), Expected);
 
@@ -1419,11 +1425,11 @@ TEST_F(ConstantRangeTest, SRem) {
   EXPECT_EQ(PosLHS.srem(PosMod), PosLHS);
   EXPECT_EQ(PosLHS.srem(NegMod), PosLHS);
   EXPECT_EQ(PosLHS.srem(IntMinMod), PosLHS);
-  ConstantRange NegLHS(APInt(16, -15), APInt(16, 1));
+  ConstantRange NegLHS(APInt(16, -15, true), APInt(16, 1));
   EXPECT_EQ(NegLHS.srem(PosMod), NegLHS);
   EXPECT_EQ(NegLHS.srem(NegMod), NegLHS);
   EXPECT_EQ(NegLHS.srem(IntMinMod), NegLHS);
-  ConstantRange PosNegLHS(APInt(16, -12), APInt(16, 18));
+  ConstantRange PosNegLHS(APInt(16, -12, true), APInt(16, 18));
   EXPECT_EQ(PosNegLHS.srem(PosMod), PosNegLHS);
   EXPECT_EQ(PosNegLHS.srem(NegMod), PosNegLHS);
   EXPECT_EQ(PosNegLHS.srem(IntMinMod), PosNegLHS);
@@ -1433,11 +1439,11 @@ TEST_F(ConstantRangeTest, SRem) {
   EXPECT_EQ(PosSmallLHS.srem(PosMod), PosSmallLHS);
   EXPECT_EQ(PosSmallLHS.srem(NegMod), PosSmallLHS);
   EXPECT_EQ(PosSmallLHS.srem(IntMinMod), PosSmallLHS);
-  ConstantRange NegSmallLHS(APInt(16, -7), APInt(16, -2));
+  ConstantRange NegSmallLHS(APInt(16, -7, true), APInt(16, -2, true));
   EXPECT_EQ(NegSmallLHS.srem(PosMod), NegSmallLHS);
   EXPECT_EQ(NegSmallLHS.srem(NegMod), NegSmallLHS);
   EXPECT_EQ(NegSmallLHS.srem(IntMinMod), NegSmallLHS);
-  ConstantRange PosNegSmallLHS(APInt(16, -3), APInt(16, 8));
+  ConstantRange PosNegSmallLHS(APInt(16, -3, true), APInt(16, 8));
   EXPECT_EQ(PosNegSmallLHS.srem(PosMod), PosNegSmallLHS);
   EXPECT_EQ(PosNegSmallLHS.srem(NegMod), PosNegSmallLHS);
   EXPECT_EQ(PosNegSmallLHS.srem(IntMinMod), PosNegSmallLHS);
@@ -1554,27 +1560,27 @@ TEST_F(ConstantRangeTest, ShlWithNoWrap) {
   EXPECT_EQ(One.shlWithNoWrap(Full, OBO::NoSignedWrap),
             ConstantRange(APInt(16, 10), APInt(16, 20481)));
   EXPECT_EQ(One.shlWithNoWrap(Full, OBO::NoUnsignedWrap),
-            ConstantRange(APInt(16, 10), APInt(16, -24575)));
+            ConstantRange(APInt(16, 10), APInt(16, -24575, true)));
   EXPECT_EQ(One.shlWithNoWrap(Full, OBO::NoSignedWrap | OBO::NoUnsignedWrap),
             ConstantRange(APInt(16, 10), APInt(16, 20481)));
   ConstantRange NegOne(APInt(16, 0xffff));
   EXPECT_EQ(NegOne.shlWithNoWrap(Full, OBO::NoSignedWrap),
-            ConstantRange(APInt(16, -32768), APInt(16, 0)));
+            ConstantRange(APInt(16, -32768, true), APInt(16, 0)));
   EXPECT_EQ(NegOne.shlWithNoWrap(Full, OBO::NoUnsignedWrap), NegOne);
   EXPECT_EQ(ConstantRange(APInt(16, 768))
                 .shlWithNoWrap(Full, OBO::NoSignedWrap | OBO::NoUnsignedWrap),
             ConstantRange(APInt(16, 768), APInt(16, 24577)));
   EXPECT_EQ(Full.shlWithNoWrap(ConstantRange(APInt(16, 1), APInt(16, 16)),
                                OBO::NoUnsignedWrap),
-            ConstantRange(APInt(16, 0), APInt(16, -1)));
-  EXPECT_EQ(ConstantRange(APInt(4, 3), APInt(4, -8))
+            ConstantRange(APInt(16, 0), APInt(16, -1, true)));
+  EXPECT_EQ(ConstantRange(APInt(4, 3), APInt(4, -8, true))
                 .shlWithNoWrap(ConstantRange(APInt(4, 0), APInt(4, 4)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(4, 3), APInt(4, -8)));
-  EXPECT_EQ(ConstantRange(APInt(4, -1), APInt(4, 0))
+            ConstantRange(APInt(4, 3), APInt(4, -8, true)));
+  EXPECT_EQ(ConstantRange(APInt(4, -1, true), APInt(4, 0))
                 .shlWithNoWrap(ConstantRange(APInt(4, 1), APInt(4, 4)),
                                OBO::NoSignedWrap),
-            ConstantRange(APInt(4, -8), APInt(4, -1)));
+            ConstantRange(APInt(4, -8, true), APInt(4, -1, true)));
 }
 
 TEST_F(ConstantRangeTest, Lshr) {
@@ -1620,9 +1626,9 @@ TEST_F(ConstantRangeTest, Ashr) {
                                            APInt(16, (0xaaa >> 0xa) + 1)));
   EXPECT_EQ(Some.ashr(Wrap), ConstantRange(APInt(16, 0), APInt(16, 0xaaa)));
   EXPECT_EQ(Wrap.ashr(Wrap), Full);
-  ConstantRange Neg(APInt(16, 0xf3f0, true), APInt(16, 0xf7f8, true));
-  EXPECT_EQ(Neg.ashr(Small), ConstantRange(APInt(16, 0xfffc, true),
-                                           APInt(16, 0xfffe, true)));
+  ConstantRange Neg(APInt(16, 0xf3f0), APInt(16, 0xf7f8));
+  EXPECT_EQ(Neg.ashr(Small),
+            ConstantRange(APInt(16, 0xfffc), APInt(16, 0xfffe)));
 }
 
 TEST(ConstantRange, MakeAllowedICmpRegion) {
@@ -1665,23 +1671,23 @@ TEST(ConstantRange, MakeSatisfyingICmpRegion) {
                                                     UnsignedSample),
             ConstantRange(APInt(8, 199), APInt(8, 0)));
 
-  ConstantRange SignedSample(APInt(8, -5), APInt(8, 5));
+  ConstantRange SignedSample(APInt(8, -5, true), APInt(8, 5));
 
   EXPECT_EQ(
       ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SLT, SignedSample),
-      ConstantRange(APInt(8, -128), APInt(8, -5)));
+      ConstantRange(APInt(8, -128, true), APInt(8, -5, true)));
 
   EXPECT_EQ(
       ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SLE, SignedSample),
-      ConstantRange(APInt(8, -128), APInt(8, -4)));
+      ConstantRange(APInt(8, -128, true), APInt(8, -4, true)));
 
   EXPECT_EQ(
       ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SGT, SignedSample),
-      ConstantRange(APInt(8, 5), APInt(8, -128)));
+      ConstantRange(APInt(8, 5), APInt(8, -128, true)));
 
   EXPECT_EQ(
       ConstantRange::makeSatisfyingICmpRegion(ICmpInst::ICMP_SGE, SignedSample),
-      ConstantRange(APInt(8, 4), APInt(8, -128)));
+      ConstantRange(APInt(8, 4), APInt(8, -128, true)));
 }
 
 void ICmpTestImpl(CmpInst::Predicate Pred) {
@@ -1703,7 +1709,7 @@ TEST(ConstantRange, ICmp) {
 }
 
 TEST(ConstantRange, MakeGuaranteedNoWrapRegion) {
-  const int IntMin4Bits = 8;
+  const int IntMin4Bits = -8;
   const int IntMax4Bits = 7;
   typedef OverflowingBinaryOperator OBO;
 
@@ -1812,7 +1818,7 @@ TEST(ConstantRange, MakeGuaranteedNoWrapRegion) {
                 Instruction::Sub, OneToFive, OBO::NoUnsignedWrap),
             ConstantRange(APInt::getMinValue(32) + 5, APInt::getMinValue(32)));
 
-  ConstantRange MinusFiveToMinusTwo(APInt(32, -5), APInt(32, -1));
+  ConstantRange MinusFiveToMinusTwo(APInt(32, -5, true), APInt(32, -1, true));
   EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
                 Instruction::Add, MinusFiveToMinusTwo, OBO::NoSignedWrap),
             ConstantRange(APInt::getSignedMinValue(32) + 5,
@@ -1826,10 +1832,9 @@ TEST(ConstantRange, MakeGuaranteedNoWrapRegion) {
                           APInt::getSignedMaxValue(32) - 4));
   EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
                 Instruction::Sub, MinusFiveToMinusTwo, OBO::NoUnsignedWrap),
-            ConstantRange(APInt::getMaxValue(32) - 1,
-                          APInt::getMinValue(32)));
+            ConstantRange(APInt::getMaxValue(32) - 1, APInt::getMinValue(32)));
 
-  ConstantRange MinusOneToOne(APInt(32, -1), APInt(32, 2));
+  ConstantRange MinusOneToOne(APInt(32, -1, true), APInt(32, 2));
   EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
                 Instruction::Add, MinusOneToOne, OBO::NoSignedWrap),
             ConstantRange(APInt::getSignedMinValue(32) + 1,
@@ -1877,7 +1882,7 @@ TEST(ConstantRange, MakeGuaranteedNoWrapRegion) {
             ConstantRange(APInt(32, 0), APInt(32, 1) + 1));
   EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
                 Instruction::Shl, UpToBitWidth, OBO::NoSignedWrap),
-            ConstantRange(APInt(32, -1), APInt(32, 0) + 1));
+            ConstantRange(APInt(32, -1, true), APInt(32, 0) + 1));
 
   EXPECT_EQ(
       ConstantRange::makeGuaranteedNoWrapRegion(
@@ -1898,34 +1903,36 @@ TEST(ConstantRange, MakeGuaranteedNoWrapRegion) {
                 Instruction::Shl, IllegalShAmt, OBO::NoSignedWrap),
             ConstantRange::getFull(32));
 
-  EXPECT_EQ(
-      ConstantRange::makeGuaranteedNoWrapRegion(
-          Instruction::Shl, ConstantRange(APInt(32, -32), APInt(32, 16) + 1),
-          OBO::NoUnsignedWrap),
-      ConstantRange::makeGuaranteedNoWrapRegion(
-          Instruction::Shl, ConstantRange(APInt(32, 0), APInt(32, 16) + 1),
-          OBO::NoUnsignedWrap));
-  EXPECT_EQ(
-      ConstantRange::makeGuaranteedNoWrapRegion(
-          Instruction::Shl, ConstantRange(APInt(32, -32), APInt(32, 16) + 1),
-          OBO::NoSignedWrap),
-      ConstantRange::makeGuaranteedNoWrapRegion(
-          Instruction::Shl, ConstantRange(APInt(32, 0), APInt(32, 16) + 1),
-          OBO::NoSignedWrap));
+  EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
+                Instruction::Shl,
+                ConstantRange(APInt(32, -32, true), APInt(32, 16) + 1),
+                OBO::NoUnsignedWrap),
+            ConstantRange::makeGuaranteedNoWrapRegion(
+                Instruction::Shl,
+                ConstantRange(APInt(32, 0), APInt(32, 16) + 1),
+                OBO::NoUnsignedWrap));
+  EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
+                Instruction::Shl,
+                ConstantRange(APInt(32, -32, true), APInt(32, 16) + 1),
+                OBO::NoSignedWrap),
+            ConstantRange::makeGuaranteedNoWrapRegion(
+                Instruction::Shl,
+                ConstantRange(APInt(32, 0), APInt(32, 16) + 1),
+                OBO::NoSignedWrap));
 
   EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
                 Instruction::Shl,
-                ConstantRange(APInt(32, -32), APInt(32, 16) + 1),
+                ConstantRange(APInt(32, -32, true), APInt(32, 16) + 1),
                 OBO::NoUnsignedWrap),
             ConstantRange(APInt(32, 0), APInt(32, 65535) + 1));
   EXPECT_EQ(ConstantRange::makeGuaranteedNoWrapRegion(
                 Instruction::Shl,
-                ConstantRange(APInt(32, -32), APInt(32, 16) + 1),
+                ConstantRange(APInt(32, -32, true), APInt(32, 16) + 1),
                 OBO::NoSignedWrap),
-            ConstantRange(APInt(32, -32768), APInt(32, 32767) + 1));
+            ConstantRange(APInt(32, -32768, true), APInt(32, 32767) + 1));
 }
 
-template<typename Fn>
+template <typename Fn>
 void TestNoWrapRegionExhaustive(Instruction::BinaryOps BinOp,
                                 unsigned NoWrapKind, Fn OverflowFn) {
   for (unsigned Bits : {1, 5}) {
@@ -2090,14 +2097,15 @@ TEST(ConstantRange, GetEquivalentICmp) {
   EXPECT_EQ(Pred, CmpInst::ICMP_NE);
   EXPECT_EQ(RHS, APInt(32, 0));
 
-  EXPECT_TRUE(ConstantRange(APInt(32, -1)).getEquivalentICmp(Pred, RHS));
+  EXPECT_TRUE(ConstantRange(APInt(32, -1, true)).getEquivalentICmp(Pred, RHS));
   EXPECT_EQ(Pred, CmpInst::ICMP_EQ);
-  EXPECT_EQ(RHS, APInt(32, -1));
+  EXPECT_EQ(RHS, APInt(32, -1, true));
 
-  EXPECT_TRUE(
-      ConstantRange(APInt(32, -1)).inverse().getEquivalentICmp(Pred, RHS));
+  EXPECT_TRUE(ConstantRange(APInt(32, -1, true))
+                  .inverse()
+                  .getEquivalentICmp(Pred, RHS));
   EXPECT_EQ(Pred, CmpInst::ICMP_NE);
-  EXPECT_EQ(RHS, APInt(32, -1));
+  EXPECT_EQ(RHS, APInt(32, -1, true));
 
   EnumerateInterestingConstantRanges([](const ConstantRange &CR) {
     unsigned Bits = CR.getBitWidth();
diff --git a/llvm/unittests/IR/MetadataTest.cpp b/llvm/unittests/IR/MetadataTest.cpp
index 17573ca57e0874..821d6f44e521d7 100644
--- a/llvm/unittests/IR/MetadataTest.cpp
+++ b/llvm/unittests/IR/MetadataTest.cpp
@@ -4224,16 +4224,18 @@ TEST_F(DIExpressionTest, foldConstant) {
   DIExpression *Expr;
   DIExpression *NewExpr;
 
-#define EXPECT_FOLD_CONST(StartWidth, StartValue, EndWidth, EndValue, NumElts)  \
-  Int = ConstantInt::get(Context, APInt(StartWidth, StartValue));               \
-  std::tie(NewExpr, NewInt) = Expr->constantFold(Int);                          \
-  ASSERT_EQ(NewInt->getBitWidth(), EndWidth##u);                                \
-  EXPECT_EQ(NewInt->getValue(), APInt(EndWidth, EndValue));                     \
+#define EXPECT_FOLD_CONST(StartWidth, StartValue, StartIsSigned, EndWidth,     \
+                          EndValue, EndIsSigned, NumElts)                      \
+  Int =                                                                        \
+      ConstantInt::get(Context, APInt(StartWidth, StartValue, StartIsSigned)); \
+  std::tie(NewExpr, NewInt) = Expr->constantFold(Int);                         \
+  ASSERT_EQ(NewInt->getBitWidth(), EndWidth##u);                               \
+  EXPECT_EQ(NewInt->getValue(), APInt(EndWidth, EndValue, EndIsSigned));       \
   EXPECT_EQ(NewExpr->getNumElements(), NumElts##u)
 
   // Unfoldable expression should return the original unmodified Int/Expr.
   Expr = DIExpression::get(Context, {dwarf::DW_OP_deref});
-  EXPECT_FOLD_CONST(32, 117, 32, 117, 1);
+  EXPECT_FOLD_CONST(32, 117, false, 32, 117, false, 1);
   EXPECT_EQ(NewExpr, Expr);
   EXPECT_EQ(NewInt, Int);
   EXPECT_TRUE(NewExpr->startsWithDeref());
@@ -4241,18 +4243,18 @@ TEST_F(DIExpressionTest, foldConstant) {
   // One unsigned bit-width conversion.
   Expr = DIExpression::get(
       Context, {dwarf::DW_OP_LLVM_convert, 72, dwarf::DW_ATE_unsigned});
-  EXPECT_FOLD_CONST(8, 12, 72, 12, 0);
+  EXPECT_FOLD_CONST(8, 12, false, 72, 12, false, 0);
 
   // Two unsigned bit-width conversions (mask truncation).
   Expr = DIExpression::get(
       Context, {dwarf::DW_OP_LLVM_convert, 8, dwarf::DW_ATE_unsigned,
                 dwarf::DW_OP_LLVM_convert, 16, dwarf::DW_ATE_unsigned});
-  EXPECT_FOLD_CONST(32, -1, 16, 0xff, 0);
+  EXPECT_FOLD_CONST(32, -1, true, 16, 0xff, false, 0);
 
   // Sign extension.
   Expr = DIExpression::get(
       Context, {dwarf::DW_OP_LLVM_convert, 32, dwarf::DW_ATE_signed});
-  EXPECT_FOLD_CONST(16, -1, 32, -1, 0);
+  EXPECT_FOLD_CONST(16, -1, true, 32, -1, true, 0);
 
   // Get non-foldable operations back in the new Expr.
   uint64_t Elements[] = {dwarf::DW_OP_deref, dwarf::DW_OP_stack_value};
@@ -4261,7 +4263,7 @@ TEST_F(DIExpressionTest, foldConstant) {
       Context, {dwarf::DW_OP_LLVM_convert, 32, dwarf::DW_ATE_signed});
   Expr = DIExpression::append(Expr, Expected);
   ASSERT_EQ(Expr->getNumElements(), 5u);
-  EXPECT_FOLD_CONST(16, -1, 32, -1, 2);
+  EXPECT_FOLD_CONST(16, -1, true, 32, -1, true, 2);
   EXPECT_EQ(NewExpr->getElements(), Expected);
 
 #undef EXPECT_FOLD_CONST
diff --git a/llvm/unittests/IR/PatternMatch.cpp b/llvm/unittests/IR/PatternMatch.cpp
index 379f97fb63139f..13f121a2b9c7dd 100644
--- a/llvm/unittests/IR/PatternMatch.cpp
+++ b/llvm/unittests/IR/PatternMatch.cpp
@@ -71,7 +71,7 @@ TEST_F(PatternMatchTest, SpecificIntEQ) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_TRUE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 0))
@@ -93,15 +93,15 @@ TEST_F(PatternMatchTest, SpecificIntEQ) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(Zero));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(One));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_EQ,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntNE) {
@@ -110,7 +110,7 @@ TEST_F(PatternMatchTest, SpecificIntNE) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_FALSE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 0))
@@ -132,15 +132,15 @@ TEST_F(PatternMatchTest, SpecificIntNE) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(Zero));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(One));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_NE,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntUGT) {
@@ -149,7 +149,7 @@ TEST_F(PatternMatchTest, SpecificIntUGT) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_FALSE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 0))
@@ -171,15 +171,15 @@ TEST_F(PatternMatchTest, SpecificIntUGT) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(Zero));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(One));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SignbitZeroChecks) {
@@ -187,7 +187,7 @@ TEST_F(PatternMatchTest, SignbitZeroChecks) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_TRUE(m_Negative().match(NegOne));
   EXPECT_FALSE(m_NonNegative().match(NegOne));
@@ -211,7 +211,7 @@ TEST_F(PatternMatchTest, SpecificIntUGE) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_TRUE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 0))
@@ -233,15 +233,15 @@ TEST_F(PatternMatchTest, SpecificIntUGE) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(Zero));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(One));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_UGE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntULT) {
@@ -250,7 +250,7 @@ TEST_F(PatternMatchTest, SpecificIntULT) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_FALSE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 0))
@@ -272,15 +272,15 @@ TEST_F(PatternMatchTest, SpecificIntULT) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(Zero));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(One));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntULE) {
@@ -289,7 +289,7 @@ TEST_F(PatternMatchTest, SpecificIntULE) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_TRUE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 0))
@@ -311,15 +311,15 @@ TEST_F(PatternMatchTest, SpecificIntULE) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(Zero));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(One));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_ULE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntSGT) {
@@ -328,7 +328,7 @@ TEST_F(PatternMatchTest, SpecificIntSGT) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_FALSE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 0))
@@ -350,15 +350,15 @@ TEST_F(PatternMatchTest, SpecificIntSGT) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(Zero));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(One));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntSGE) {
@@ -367,7 +367,7 @@ TEST_F(PatternMatchTest, SpecificIntSGE) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_TRUE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 0))
@@ -389,15 +389,15 @@ TEST_F(PatternMatchTest, SpecificIntSGE) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(Zero));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(One));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SGE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntSLT) {
@@ -406,7 +406,7 @@ TEST_F(PatternMatchTest, SpecificIntSLT) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_FALSE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 0))
@@ -428,15 +428,15 @@ TEST_F(PatternMatchTest, SpecificIntSLT) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(Zero));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(One));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLT,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, SpecificIntSLE) {
@@ -445,7 +445,7 @@ TEST_F(PatternMatchTest, SpecificIntSLE) {
 
   Value *Zero = ConstantInt::get(IntTy, 0);
   Value *One = ConstantInt::get(IntTy, 1);
-  Value *NegOne = ConstantInt::get(IntTy, -1);
+  Value *NegOne = Constant::getAllOnesValue(IntTy);
 
   EXPECT_TRUE(
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 0))
@@ -467,15 +467,15 @@ TEST_F(PatternMatchTest, SpecificIntSLE) {
       m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, 1))
           .match(NegOne));
 
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1))
-          .match(Zero));
-  EXPECT_FALSE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1))
-          .match(One));
-  EXPECT_TRUE(
-      m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE, APInt(BitWidth, -1))
-          .match(NegOne));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(Zero));
+  EXPECT_FALSE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE,
+                                  APInt::getAllOnes(BitWidth))
+                   .match(One));
+  EXPECT_TRUE(m_SpecificInt_ICMP(ICmpInst::Predicate::ICMP_SLE,
+                                 APInt::getAllOnes(BitWidth))
+                  .match(NegOne));
 }
 
 TEST_F(PatternMatchTest, Unless) {
diff --git a/llvm/unittests/Support/DivisionByConstantTest.cpp b/llvm/unittests/Support/DivisionByConstantTest.cpp
index 2b17f98bb75b2f..715dded68ff017 100644
--- a/llvm/unittests/Support/DivisionByConstantTest.cpp
+++ b/llvm/unittests/Support/DivisionByConstantTest.cpp
@@ -32,7 +32,7 @@ APInt SignedDivideUsingMagic(APInt Numerator, APInt Divisor,
   unsigned Bits = Numerator.getBitWidth();
 
   APInt Factor(Bits, 0);
-  APInt ShiftMask(Bits, -1);
+  APInt ShiftMask(Bits, -1, true);
   if (Divisor.isOne() || Divisor.isAllOnes()) {
     // If d is +1/-1, we just multiply the numerator by +1/-1.
     Factor = Divisor.getSExtValue();

>From feae9286d61832d994340b4b77f0442fe8ad8677 Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov at redhat.com>
Date: Wed, 14 Aug 2024 17:08:26 +0200
Subject: [PATCH 2/3] mlir fixes

---
 mlir/include/mlir/IR/OpImplementation.h          |  3 ++-
 mlir/lib/Conversion/TosaToArith/TosaToArith.cpp  |  2 +-
 .../Dialect/ControlFlow/IR/ControlFlowOps.cpp    |  2 +-
 mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp       |  2 +-
 mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp     |  2 +-
 mlir/lib/IR/Builders.cpp                         | 16 ++++++++++++----
 .../SPIRV/Deserialization/Deserializer.cpp       |  6 ++++--
 .../Dialect/SPIRV/SerializationTest.cpp          |  2 +-
 8 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/mlir/include/mlir/IR/OpImplementation.h b/mlir/include/mlir/IR/OpImplementation.h
index ae412c7227f8ea..cb341ec3dc2bee 100644
--- a/mlir/include/mlir/IR/OpImplementation.h
+++ b/mlir/include/mlir/IR/OpImplementation.h
@@ -743,7 +743,8 @@ class AsmParser {
     // zero for non-negated integers.
     result =
         (IntT)uintResult.sextOrTrunc(sizeof(IntT) * CHAR_BIT).getLimitedValue();
-    if (APInt(uintResult.getBitWidth(), result) != uintResult)
+    if (APInt(uintResult.getBitWidth(), result, /*isSigned=*/true,
+              /*implicitTrunc=*/true) != uintResult)
       return emitError(loc, "integer value too large");
     return success();
   }
diff --git a/mlir/lib/Conversion/TosaToArith/TosaToArith.cpp b/mlir/lib/Conversion/TosaToArith/TosaToArith.cpp
index 50e57682a2dc8d..593dbaa6c6545a 100644
--- a/mlir/lib/Conversion/TosaToArith/TosaToArith.cpp
+++ b/mlir/lib/Conversion/TosaToArith/TosaToArith.cpp
@@ -43,7 +43,7 @@ Type matchContainerType(Type element, Type container) {
 TypedAttr getConstantAttr(Type type, int64_t value, PatternRewriter &rewriter) {
   if (auto shapedTy = dyn_cast<ShapedType>(type)) {
     Type eTy = shapedTy.getElementType();
-    APInt valueInt(eTy.getIntOrFloatBitWidth(), value);
+    APInt valueInt(eTy.getIntOrFloatBitWidth(), value, /*isSigned=*/true);
     return DenseIntElementsAttr::get(shapedTy, valueInt);
   }
 
diff --git a/mlir/lib/Dialect/ControlFlow/IR/ControlFlowOps.cpp b/mlir/lib/Dialect/ControlFlow/IR/ControlFlowOps.cpp
index 98b429de1fd85c..edd7f607f24f4d 100644
--- a/mlir/lib/Dialect/ControlFlow/IR/ControlFlowOps.cpp
+++ b/mlir/lib/Dialect/ControlFlow/IR/ControlFlowOps.cpp
@@ -528,7 +528,7 @@ static ParseResult parseSwitchOpCases(
     int64_t value = 0;
     if (failed(parser.parseInteger(value)))
       return failure();
-    values.push_back(APInt(bitWidth, value));
+    values.push_back(APInt(bitWidth, value, /*isSigned=*/true));
 
     Block *destination;
     SmallVector<OpAsmParser::UnresolvedOperand> operands;
diff --git a/mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp b/mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp
index 92f3984e5e6db6..bc103916a17fdc 100644
--- a/mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp
+++ b/mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp
@@ -514,7 +514,7 @@ static ParseResult parseSwitchOpCases(
     int64_t value = 0;
     if (failed(parser.parseInteger(value)))
       return failure();
-    values.push_back(APInt(bitWidth, value));
+    values.push_back(APInt(bitWidth, value, /*isSigned=*/true));
 
     Block *destination;
     SmallVector<OpAsmParser::UnresolvedOperand> operands;
diff --git a/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp b/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
index 4c943ebbe3144f..a9628244f7f979 100644
--- a/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
+++ b/mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
@@ -1073,7 +1073,7 @@ static ParseResult parseMembersIndex(OpAsmParser &parser,
     if (parser.parseInteger(value))
       return failure();
     shapeTmp++;
-    values.push_back(APInt(32, value));
+    values.push_back(APInt(32, value, /*isSigned=*/true));
     return success();
   };
 
diff --git a/mlir/lib/IR/Builders.cpp b/mlir/lib/IR/Builders.cpp
index e3d6d71fb61dfb..0c61ab0d1526ec 100644
--- a/mlir/lib/IR/Builders.cpp
+++ b/mlir/lib/IR/Builders.cpp
@@ -222,7 +222,10 @@ DenseIntElementsAttr Builder::getIndexTensorAttr(ArrayRef<int64_t> values) {
 }
 
 IntegerAttr Builder::getI32IntegerAttr(int32_t value) {
-  return IntegerAttr::get(getIntegerType(32), APInt(32, value));
+  // The APInt always uses isSigned=true here because we accept the value
+  // as int32_t.
+  return IntegerAttr::get(getIntegerType(32),
+                          APInt(32, value, /*isSigned=*/true));
 }
 
 IntegerAttr Builder::getSI32IntegerAttr(int32_t value) {
@@ -240,14 +243,19 @@ IntegerAttr Builder::getI16IntegerAttr(int16_t value) {
 }
 
 IntegerAttr Builder::getI8IntegerAttr(int8_t value) {
-  return IntegerAttr::get(getIntegerType(8), APInt(8, value));
+  // The APInt always uses isSigned=true here because we accept the value
+  // as int8_t.
+  return IntegerAttr::get(getIntegerType(8),
+                          APInt(8, value, /*isSigned=*/true));
 }
 
 IntegerAttr Builder::getIntegerAttr(Type type, int64_t value) {
   if (type.isIndex())
     return IntegerAttr::get(type, APInt(64, value));
-  return IntegerAttr::get(
-      type, APInt(type.getIntOrFloatBitWidth(), value, type.isSignedInteger()));
+  // TODO: Avoid implicit trunc?
+  return IntegerAttr::get(type, APInt(type.getIntOrFloatBitWidth(), value,
+                                      type.isSignedInteger(),
+                                      /*implicitTrunc=*/true));
 }
 
 IntegerAttr Builder::getIntegerAttr(Type type, const APInt &value) {
diff --git a/mlir/lib/Target/SPIRV/Deserialization/Deserializer.cpp b/mlir/lib/Target/SPIRV/Deserialization/Deserializer.cpp
index 38293f7106a05a..236e0ec100a0de 100644
--- a/mlir/lib/Target/SPIRV/Deserialization/Deserializer.cpp
+++ b/mlir/lib/Target/SPIRV/Deserialization/Deserializer.cpp
@@ -1284,9 +1284,11 @@ LogicalResult spirv::Deserializer::processConstant(ArrayRef<uint32_t> operands,
         uint32_t word1;
         uint32_t word2;
       } words = {operands[2], operands[3]};
-      value = APInt(64, llvm::bit_cast<uint64_t>(words), /*isSigned=*/true);
+      value = APInt(64, llvm::bit_cast<uint64_t>(words), /*isSigned=*/true,
+                    /*implicitTrunc=*/true);
     } else if (bitwidth <= 32) {
-      value = APInt(bitwidth, operands[2], /*isSigned=*/true);
+      value = APInt(bitwidth, operands[2], /*isSigned=*/true,
+                    /*implicitTrunc=*/true);
     }
 
     auto attr = opBuilder.getIntegerAttr(intType, value);
diff --git a/mlir/unittests/Dialect/SPIRV/SerializationTest.cpp b/mlir/unittests/Dialect/SPIRV/SerializationTest.cpp
index 9d2f690ed898af..ef89c1645d373f 100644
--- a/mlir/unittests/Dialect/SPIRV/SerializationTest.cpp
+++ b/mlir/unittests/Dialect/SPIRV/SerializationTest.cpp
@@ -176,7 +176,7 @@ TEST_F(SerializationTest, SignlessVsSignedIntegerConstantBitExtension) {
       IntegerType::get(&context, 16, IntegerType::Signless);
   auto signedInt16Type = IntegerType::get(&context, 16, IntegerType::Signed);
   // Check the bit extension of same value under different signedness semantics.
-  APInt signlessIntConstVal(signlessInt16Type.getWidth(), -1,
+  APInt signlessIntConstVal(signlessInt16Type.getWidth(), 0xffff,
                             signlessInt16Type.getSignedness());
   APInt signedIntConstVal(signedInt16Type.getWidth(), -1,
                           signedInt16Type.getSignedness());

>From ed82246d9ed35c5693c15a32d0ff09971c3476b9 Mon Sep 17 00:00:00 2001
From: Nikita Popov <npopov at redhat.com>
Date: Thu, 15 Aug 2024 12:07:57 +0200
Subject: [PATCH 3/3] more llvm fixes

---
 llvm/lib/Analysis/Loads.cpp                   |  6 ++--
 llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp      |  2 +-
 .../Target/AArch64/AArch64ISelLowering.cpp    | 32 +++++++++----------
 llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp |  2 +-
 .../AMDGPU/AMDGPUInstructionSelector.cpp      |  2 +-
 .../Disassembler/AMDGPUDisassembler.cpp       |  2 +-
 .../MCTargetDesc/AMDGPUMCTargetDesc.cpp       |  2 +-
 llvm/lib/Target/AMDGPU/SIInstrInfo.cpp        | 13 +++++---
 .../Target/AMDGPU/SIShrinkInstructions.cpp    |  4 +--
 .../lib/Target/ARM/AsmParser/ARMAsmParser.cpp |  4 ++-
 .../Hexagon/HexagonConstPropagation.cpp       |  3 +-
 llvm/lib/Target/Hexagon/HexagonGenExtract.cpp |  2 +-
 llvm/lib/Target/RISCV/RISCVISelLowering.cpp   |  4 ++-
 .../Target/SystemZ/SystemZISelLowering.cpp    |  2 +-
 14 files changed, 44 insertions(+), 36 deletions(-)

diff --git a/llvm/lib/Analysis/Loads.cpp b/llvm/lib/Analysis/Loads.cpp
index a88469ab81a8c8..d106507ee5711b 100644
--- a/llvm/lib/Analysis/Loads.cpp
+++ b/llvm/lib/Analysis/Loads.cpp
@@ -94,10 +94,8 @@ static bool isDereferenceableAndAlignedPointer(
   }
 
   bool CheckForNonNull, CheckForFreed;
-  APInt KnownDerefBytes(Size.getBitWidth(),
-                        V->getPointerDereferenceableBytes(DL, CheckForNonNull,
-                                                          CheckForFreed));
-  if (KnownDerefBytes.getBoolValue() && KnownDerefBytes.uge(Size) &&
+  if (Size.ule(V->getPointerDereferenceableBytes(DL, CheckForNonNull,
+                                                 CheckForFreed)) &&
       !CheckForFreed)
     if (!CheckForNonNull ||
         isKnownNonZero(V, SimplifyQuery(DL, DT, AC, CtxI))) {
diff --git a/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp b/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp
index 0d7a51bfe73753..466e4024ffb2cf 100644
--- a/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp
+++ b/llvm/lib/ExecutionEngine/MCJIT/MCJIT.cpp
@@ -588,7 +588,7 @@ GenericValue MCJIT::runFunction(Function *F, ArrayRef<GenericValue> ArgValues) {
       return rv;
     }
     case Type::VoidTyID:
-      rv.IntVal = APInt(32, ((int(*)())(intptr_t)FPtr)());
+      rv.IntVal = APInt(32, ((int(*)())(intptr_t)FPtr)(), true);
       return rv;
     case Type::FloatTyID:
       rv.FloatVal = ((float(*)())(intptr_t)FPtr)();
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
index 97fb2c5f552731..d1d81b7287fd7e 100644
--- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -2351,10 +2351,11 @@ void AArch64TargetLowering::computeKnownBitsForTargetNode(
   }
   case AArch64ISD::BICi: {
     // Compute the bit cleared value.
-    uint64_t Mask =
-        ~(Op->getConstantOperandVal(1) << Op->getConstantOperandVal(2));
+    APInt Mask =
+        ~(Op->getConstantOperandAPInt(1) << Op->getConstantOperandAPInt(2))
+             .trunc(Known.getBitWidth());
     Known = DAG.computeKnownBits(Op->getOperand(0), Depth + 1);
-    Known &= KnownBits::makeConstant(APInt(Known.getBitWidth(), Mask));
+    Known &= KnownBits::makeConstant(Mask);
     break;
   }
   case AArch64ISD::VLSHR: {
@@ -12651,7 +12652,8 @@ static bool isEXTMask(ArrayRef<int> M, EVT VT, bool &ReverseEXT,
   // Benefit form APInt to handle overflow when calculating expected element.
   unsigned NumElts = VT.getVectorNumElements();
   unsigned MaskBits = APInt(32, NumElts * 2).logBase2();
-  APInt ExpectedElt = APInt(MaskBits, *FirstRealElt + 1);
+  APInt ExpectedElt = APInt(MaskBits, *FirstRealElt + 1, /*isSigned=*/false,
+                            /*implicitTrunc=*/true);
   // The following shuffle indices must be the successive elements after the
   // first real element.
   bool FoundWrongElt = std::any_of(FirstRealElt + 1, M.end(), [&](int Elt) {
@@ -14118,9 +14120,9 @@ static SDValue NormalizeBuildVector(SDValue Op,
     // (with operands cast to integers), then the only possibilities
     // are constants and UNDEFs.
     if (auto *CstLane = dyn_cast<ConstantSDNode>(Lane)) {
-      APInt LowBits(EltTy.getSizeInBits(),
-                    CstLane->getZExtValue());
-      Lane = DAG.getConstant(LowBits.getZExtValue(), dl, MVT::i32);
+      Lane = DAG.getConstant(
+          CstLane->getAPIntValue().trunc(EltTy.getSizeInBits()).getZExtValue(),
+          dl, MVT::i32);
     } else if (Lane.getNode()->isUndef()) {
       Lane = DAG.getUNDEF(MVT::i32);
     } else {
@@ -23626,7 +23628,7 @@ static bool findMoreOptimalIndexType(const MaskedGatherScatterSDNode *N,
   EVT NewIndexVT = IndexVT.changeVectorElementType(MVT::i32);
   // Stride does not scale explicitly by 'Scale', because it happens in
   // the gather/scatter addressing mode.
-  Index = DAG.getStepVector(SDLoc(N), NewIndexVT, APInt(32, Stride));
+  Index = DAG.getStepVector(SDLoc(N), NewIndexVT, APInt(32, Stride, true));
   return true;
 }
 
@@ -28596,7 +28598,7 @@ static SDValue GenerateFixedLengthSVETBL(SDValue Op, SDValue Op1, SDValue Op2,
   unsigned BitsPerElt = VTOp1.getVectorElementType().getSizeInBits();
   unsigned IndexLen = MinSVESize / BitsPerElt;
   unsigned ElementsPerVectorReg = VTOp1.getVectorNumElements();
-  uint64_t MaxOffset = APInt(BitsPerElt, -1, false).getZExtValue();
+  uint64_t MaxOffset = APInt(BitsPerElt, -1, true).getZExtValue();
   EVT MaskEltType = VTOp1.getVectorElementType().changeTypeToInteger();
   EVT MaskType = EVT::getVectorVT(*DAG.getContext(), MaskEltType, IndexLen);
   bool MinMaxEqual = (MinSVESize == MaxSVESize);
@@ -28939,16 +28941,14 @@ bool AArch64TargetLowering::SimplifyDemandedBitsForTargetNode(
     KnownBits KnownOp0 =
         TLO.DAG.computeKnownBits(Op0, OriginalDemandedElts, Depth + 1);
     // Op0 &= ~(ConstantOperandVal(1) << ConstantOperandVal(2))
-    uint64_t BitsToClear = Op->getConstantOperandVal(1)
-                           << Op->getConstantOperandVal(2);
+    APInt BitsToClear =
+        (Op->getConstantOperandAPInt(1) << Op->getConstantOperandAPInt(2))
+            .trunc(KnownOp0.getBitWidth());
     APInt AlreadyZeroedBitsToClear = BitsToClear & KnownOp0.Zero;
-    if (APInt(Known.getBitWidth(), BitsToClear)
-            .isSubsetOf(AlreadyZeroedBitsToClear))
+    if (BitsToClear.isSubsetOf(AlreadyZeroedBitsToClear))
       return TLO.CombineTo(Op, Op0);
 
-    Known = KnownOp0 &
-            KnownBits::makeConstant(APInt(Known.getBitWidth(), ~BitsToClear));
-
+    Known = KnownOp0 & KnownBits::makeConstant(~BitsToClear);
     return false;
   }
   case ISD::INTRINSIC_WO_CHAIN: {
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
index 6a0134e07567a1..a2b56ac41745e5 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUISelDAGToDAG.cpp
@@ -1808,7 +1808,7 @@ bool AMDGPUDAGToDAGISel::SelectGlobalSAddr(SDNode *N,
       // instructions to perform VALU adds with immediates or inline literals.
       unsigned NumLiterals =
           !TII->isInlineConstant(APInt(32, COffsetVal & 0xffffffff)) +
-          !TII->isInlineConstant(APInt(32, COffsetVal >> 32));
+          !TII->isInlineConstant(APInt(32, uint64_t(COffsetVal) >> 32));
       if (Subtarget->getConstantBusLimit(AMDGPU::V_ADD_U32_e64) > NumLiterals)
         return false;
     }
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
index 05ed1b322c0d1b..a1a77bc1c4f07d 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUInstructionSelector.cpp
@@ -4368,7 +4368,7 @@ AMDGPUInstructionSelector::selectGlobalSAddr(MachineOperand &Root) const {
         // instructions to perform VALU adds with immediates or inline literals.
         unsigned NumLiterals =
             !TII.isInlineConstant(APInt(32, ConstOffset & 0xffffffff)) +
-            !TII.isInlineConstant(APInt(32, ConstOffset >> 32));
+            !TII.isInlineConstant(APInt(32, uint64_t(ConstOffset) >> 32));
         if (STI.getConstantBusLimit(AMDGPU::V_ADD_U32_e64) > NumLiterals)
           return std::nullopt;
       }
diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
index 1a0dc7098347ac..a877f5d3f577a3 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
@@ -108,7 +108,7 @@ static DecodeStatus decodeSOPPBrTarget(MCInst &Inst, unsigned Imm,
 
   // Our branches take a simm16, but we need two extra bits to account for the
   // factor of 4.
-  APInt SignedOffset(18, Imm * 4, true);
+  APInt SignedOffset = APInt(16, Imm).sext(18) * 4;
   int64_t Offset = (SignedOffset.sext(64) + 4 + Addr).getSExtValue();
 
   if (DAsm->tryAddingSymbolicOperand(Inst, Offset, Addr, true, 2, 2, 0))
diff --git a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCTargetDesc.cpp b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCTargetDesc.cpp
index 37eb0b57fb1537..c49eed9c564ca8 100644
--- a/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCTargetDesc.cpp
+++ b/llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUMCTargetDesc.cpp
@@ -132,7 +132,7 @@ class AMDGPUMCInstrAnalysis : public MCInstrAnalysis {
     int64_t Imm = Inst.getOperand(0).getImm();
     // Our branches take a simm16, but we need two extra bits to account for
     // the factor of 4.
-    APInt SignedOffset(18, Imm * 4, true);
+    APInt SignedOffset = APInt(16, Imm).sext(18) * 4;
     Target = (SignedOffset.sext(64) + Addr + Size).getZExtValue();
     return true;
   }
diff --git a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
index 9147242046ceda..ef5d098865b940 100644
--- a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp
@@ -3438,11 +3438,15 @@ bool SIInstrInfo::foldImmediate(MachineInstr &UseMI, MachineInstr &DefMI,
     case AMDGPU::sub1:
       return Hi_32(Imm);
     case AMDGPU::lo16:
-      return APInt(16, Imm).getSExtValue();
+      return APInt(16, Imm, /*isSigned=*/true, /*implicitTrunc=*/true)
+          .getSExtValue();
     case AMDGPU::hi16:
-      return APInt(32, Imm).ashr(16).getSExtValue();
+      return APInt(32, Imm, /*isSigned=*/true, /*implicitTrunc=*/true)
+          .ashr(16)
+          .getSExtValue();
     case AMDGPU::sub1_lo16:
-      return APInt(16, Hi_32(Imm)).getSExtValue();
+      return APInt(16, Hi_32(Imm), /*isSigned=*/true, /*implicitTrunc=*/true)
+          .getSExtValue();
     case AMDGPU::sub1_hi16:
       return APInt(32, Hi_32(Imm)).ashr(16).getSExtValue();
     }
@@ -3463,7 +3467,8 @@ bool SIInstrInfo::foldImmediate(MachineInstr &UseMI, MachineInstr &DefMI,
                                            : AMDGPU::V_MOV_B32_e32
                                  : Is64Bit ? AMDGPU::S_MOV_B64_IMM_PSEUDO
                                            : AMDGPU::S_MOV_B32;
-    APInt Imm(Is64Bit ? 64 : 32, getImmFor(UseMI.getOperand(1)));
+    APInt Imm(Is64Bit ? 64 : 32, getImmFor(UseMI.getOperand(1)),
+              /*isSigned=*/true, /*implicitTrunc=*/true);
 
     if (RI.isAGPR(*MRI, DstReg)) {
       if (Is64Bit || !isInlineConstant(Imm))
diff --git a/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp b/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
index 6e945bf368f4eb..3891e49a9bc870 100644
--- a/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
+++ b/llvm/lib/Target/AMDGPU/SIShrinkInstructions.cpp
@@ -207,12 +207,12 @@ static unsigned canModifyToInlineImmOp32(const SIInstrInfo *TII,
     // that SCC is not live as S_NOT_B32 clobbers it. It's probably not worth
     // it, as the reasonable values are already covered by s_movk_i32.
     ModifiedImm = ~SrcImm;
-    if (TII->isInlineConstant(APInt(32, ModifiedImm)))
+    if (TII->isInlineConstant(APInt(32, ModifiedImm, true)))
       return AMDGPU::V_NOT_B32_e32;
   }
 
   ModifiedImm = reverseBits<int32_t>(SrcImm);
-  if (TII->isInlineConstant(APInt(32, ModifiedImm)))
+  if (TII->isInlineConstant(APInt(32, ModifiedImm, true)))
     return Scalar ? AMDGPU::S_BREV_B32 : AMDGPU::V_BFREV_B32_e32;
 
   return 0;
diff --git a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index e54314cc7d00af..5fbc4d408cc31b 100644
--- a/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -1159,7 +1159,9 @@ class ARMOperand : public MCParsedAsmOperand {
     if (!isImm()) return false;
     const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
     if (!CE) return false;
-    int Val = ARM_AM::getFP32Imm(APInt(32, CE->getValue()));
+    // TODO: Is implicitTrunc correct here?
+    int Val = ARM_AM::getFP32Imm(
+        APInt(32, CE->getValue(), /*isSigned=*/true, /*implicitTrunc=*/true));
     return Val != -1;
   }
 
diff --git a/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp b/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp
index dae316ccb5e903..f68444c0b8d462 100644
--- a/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonConstPropagation.cpp
@@ -2503,7 +2503,8 @@ APInt HexagonConstEvaluator::getCmpImm(unsigned Opc, unsigned OpX,
   }
 
   uint64_t Val = MO.getImm();
-  return APInt(32, Val, Signed);
+  // TODO: Is implicitTrunc correct here?
+  return APInt(32, Val, Signed, /*implicitTrunc=*/true);
 }
 
 void HexagonConstEvaluator::replaceWithNop(MachineInstr &MI) {
diff --git a/llvm/lib/Target/Hexagon/HexagonGenExtract.cpp b/llvm/lib/Target/Hexagon/HexagonGenExtract.cpp
index 3274f9162b543a..2ed5150ec64f06 100644
--- a/llvm/lib/Target/Hexagon/HexagonGenExtract.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonGenExtract.cpp
@@ -171,7 +171,7 @@ bool HexagonGenExtract::convert(Instruction *In) {
     // this value.
     if (!LogicalSR && (SR > SL))
       return false;
-    APInt A = APInt(BW, ~0ULL).lshr(SR).shl(SL);
+    APInt A = APInt(BW, ~0ULL, true).lshr(SR).shl(SL);
     CM = ConstantInt::get(Ctx, A);
   }
 
diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
index 911fa45d7173e8..2fd0907efcea8b 100644
--- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
+++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp
@@ -3367,7 +3367,9 @@ static std::optional<VIDSequence> isSimpleVIDSequence(SDValue Op,
     if (!Elt)
       continue;
     APInt ExpectedVal =
-        (APInt(EltSizeInBits, Idx) * *SeqStepNum).sdiv(*SeqStepDenom);
+        (APInt(EltSizeInBits, Idx, /*isSigned=*/false, /*implicitTrunc=*/true) *
+         *SeqStepNum)
+            .sdiv(*SeqStepDenom);
 
     APInt Addend = *Elt - ExpectedVal;
     if (!SeqAddend)
diff --git a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
index 6f84bd6c6e4ff4..bef22b4b16342e 100644
--- a/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
@@ -7981,7 +7981,7 @@ static APInt getDemandedSrcElements(SDValue Op, const APInt &DemandedElts,
       break;
     }
     case Intrinsic::s390_vperm:
-      SrcDemE = APInt(NumElts, -1);
+      SrcDemE = APInt(NumElts, -1, true);
       break;
     default:
       llvm_unreachable("Unhandled intrinsic.");



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