Fix for division by zero (dotnet#75413)

SkiFoD · Jan 14, 2023 · 3ed0ac5 · 3ed0ac5
1 parent 3708cd3
commit 3ed0ac5
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/src/coreclr/jit/morph.cpp b/src/coreclr/jit/morph.cpp
@@ -11062,10 +11062,13 @@ GenTree* Compiler::fgOptimizeDivision(GenTreeOp* div)
     // of root and child values
     if (op1->OperIs(GT_UDIV, GT_DIV) && op2->IsIntegralConst() && op1->gtGetOp2()->IsIntegralConst())
     {
-
         GenTree* chOp1 = op1->gtGetOp1();
         GenTree* chOp2 = op1->gtGetOp2();
 
+        // If there is a division by zero
+        if (chOp2->IsIntegralConst(0))
+            return nullptr;
+
         IntegralRange boundRange = IntegralRange::ForNode(op2, this);
         int64_t       upperBound = IntegralRange::SymbolicToRealValue(boundRange.GetUpperBound());