Fixed ldind failure and properly zext unsigned types that are smaller than 32bit (#5342)

1 files changed, 31 insertions, 0 deletions

diff --git a/tests/src/Simple/HelloWasm/Program.cs b/tests/src/Simple/HelloWasm/Program.cs
index bb8962c12..612ce7499 100644
--- a/tests/src/Simple/HelloWasm/Program.cs
+++ b/tests/src/Simple/HelloWasm/Program.cs
@@ -205,6 +205,8 @@ internal static class Program
         {   
             PrintLine("Type casting with isinst & castclass to array test: Ok.");
         }
+      
+        ldindTest();
 
         PrintLine("Done");
     }
@@ -305,6 +307,35 @@ internal static class Program
         PrintLine(intString);
     }
 
+    private unsafe static void ldindTest()
+    {
+        var ldindTarget = new TwoByteStr { first = byte.MaxValue, second = byte.MinValue };
+        var ldindField = &ldindTarget.first;
+        if((*ldindField) == byte.MaxValue)
+        {
+            ldindTarget.second = byte.MaxValue;
+            *ldindField = byte.MinValue;
+            //ensure there isnt any overwrite of nearby fields
+            if(ldindTarget.first == byte.MinValue && ldindTarget.second == byte.MaxValue)
+            {
+                PrintLine("ldind test: Ok.");
+            }
+            else if(ldindTarget.first != byte.MinValue)
+            {
+                PrintLine("ldind test: Failed didnt update target.");
+            }
+            else
+            {
+                PrintLine("ldind test: Failed overwrote data");
+            }
+        }
+        else
+        {
+            uint ldindFieldValue = *ldindField;
+            PrintLine("ldind test: Failed." + ldindFieldValue.ToString());
+        }
+    }
+
     [DllImport("*")]
     private static unsafe extern int printf(byte* str, byte* unused);
 }