diff --git a/mlir/include/mlir/Dialect/AffineOps/AffineOps.td b/mlir/include/mlir/Dialect/AffineOps/AffineOps.td
--- a/mlir/include/mlir/Dialect/AffineOps/AffineOps.td
+++ b/mlir/include/mlir/Dialect/AffineOps/AffineOps.td
@@ -247,7 +247,7 @@
   let hasFolder = 1;
 }
 
-def AffineMinOp : AffineMinMaxOpBase<"min"> {
+def AffineMinOp : AffineMinMaxOpBase<"min", [NoSideEffect]> {
   let summary = "min operation";
   let description = [{
     The "min" operation computes the minimum value result from a multi-result
@@ -259,7 +259,7 @@
   }];
 }
 
-def AffineMaxOp : AffineMinMaxOpBase<"max"> {
+def AffineMaxOp : AffineMinMaxOpBase<"max", [NoSideEffect]> {
   let summary = "max operation";
   let description = [{
     The "max" operation computes the maximum value result from a multi-result