1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp
index 77b99f9..0368c09 100644
--- a/llvm/lib/Analysis/ValueTracking.cpp
+++ b/llvm/lib/Analysis/ValueTracking.cpp
@@ -1212,6 +1212,13 @@ static void computeKnownBitsFromOperator(const Operator *I,
         KnownBits::udiv(Known, Known2, Q.IIQ.isExact(cast<BinaryOperator>(I)));
     break;
   }
+  case Instruction::SDiv: {
+    computeKnownBits(I->getOperand(0), Known, Depth + 1, Q);
+    computeKnownBits(I->getOperand(1), Known2, Depth + 1, Q);
+    Known =
+        KnownBits::sdiv(Known, Known2, Q.IIQ.isExact(cast<BinaryOperator>(I)));
+    break;
+  }
   case Instruction::Select: {
     const Value *LHS = nullptr, *RHS = nullptr;
     SelectPatternFlavor SPF = matchSelectPattern(I, LHS, RHS).Flavor;