Contain PUTARG_STK sources for "push [mem]"

dotnet · Mar 31, 2022 · db08d4d · db08d4d
1 parent b40a852
commit db08d4d
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/coreclr/jit/lowerxarch.cpp b/src/coreclr/jit/lowerxarch.cpp
@@ -646,6 +646,14 @@ void Lowering::LowerPutArgStk(GenTreePutArgStk* putArgStk)
     {
         MakeSrcContained(putArgStk, src);
     }
+#ifdef TARGET_X86
+    else if ((genTypeSize(src) == TARGET_POINTER_SIZE) && IsContainableMemoryOp(src) &&
+             IsSafeToContainMem(putArgStk, src))
+    {
+        // Contain for "push [mem]".
+        MakeSrcContained(putArgStk, src);
+    }
+#endif // TARGET_X86
 }
 
 /* Lower GT_CAST(srcType, DstType) nodes.