[ValueTracking] Remove const_casts on several calls to computeKnownBits and ComputeSi...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@302991 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index 5378230..3693e72 100644 (file)
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -1284,8 +1284,7 @@ AliasResult BasicAAResult::aliasGEP(const GEPOperator *GEP1, uint64_t V1Size,
         const Value *V = DecompGEP1.VarIndices[i].V;
 
         bool SignKnownZero, SignKnownOne;
-        ComputeSignBit(const_cast<Value *>(V), SignKnownZero, SignKnownOne, DL,
-                       0, &AC, nullptr, DT);
+        ComputeSignBit(V, SignKnownZero, SignKnownOne, DL, 0, &AC, nullptr, DT);
 
         // Zero-extension widens the variable, and so forces the sign
         // bit to zero.

diff --git a/lib/Analysis/DemandedBits.cpp b/lib/Analysis/DemandedBits.cpp
index c2b35b9..8f808f3 100644 (file)
--- a/lib/Analysis/DemandedBits.cpp
+++ b/lib/Analysis/DemandedBits.cpp
@@ -86,13 +86,11 @@ void DemandedBits::determineLiveOperandBits(
       [&](unsigned BitWidth, const Value *V1, const Value *V2) {
         const DataLayout &DL = I->getModule()->getDataLayout();
         Known = KnownBits(BitWidth);
-        computeKnownBits(const_cast<Value *>(V1), Known, DL, 0,
-                         &AC, UserI, &DT);
+        computeKnownBits(V1, Known, DL, 0, &AC, UserI, &DT);
 
         if (V2) {
           Known2 = KnownBits(BitWidth);
-          computeKnownBits(const_cast<Value *>(V2), Known2, DL,
-                           0, &AC, UserI, &DT);
+          computeKnownBits(V2, Known2, DL, 0, &AC, UserI, &DT);
         }
       };
 

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 28de92c..453f95a 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -7513,8 +7513,7 @@ unsigned SelectionDAG::InferPtrAlignment(SDValue Ptr) const {
   if (TLI->isGAPlusOffset(Ptr.getNode(), GV, GVOffset)) {
     unsigned PtrWidth = getDataLayout().getPointerTypeSizeInBits(GV->getType());
     KnownBits Known(PtrWidth);
-    llvm::computeKnownBits(const_cast<GlobalValue *>(GV), Known,
-                           getDataLayout());
+    llvm::computeKnownBits(GV, Known, getDataLayout());
     unsigned AlignBits = Known.countMinTrailingZeros();
     unsigned Align = AlignBits ? 1 << std::min(31U, AlignBits) : 0;
     if (Align)