diff --git a/flang/test/Driver/mlir-pass-pipeline.f90 b/flang/test/Driver/mlir-pass-pipeline.f90
--- a/flang/test/Driver/mlir-pass-pipeline.f90
+++ b/flang/test/Driver/mlir-pass-pipeline.f90
@@ -1,6 +1,9 @@
 ! Test the MLIR pass pipeline
 
 ! RUN: %flang_fc1 -S -mmlir --mlir-pass-statistics -mmlir --mlir-pass-statistics-display=pipeline %s -o - 2>&1 | FileCheck %s
+
+! REQUIRES: asserts
+
 end program
 
 ! CHECK: Pass statistics report
diff --git a/flang/test/Fir/basic-program.fir b/flang/test/Fir/basic-program.fir
--- a/flang/test/Fir/basic-program.fir
+++ b/flang/test/Fir/basic-program.fir
@@ -1,6 +1,8 @@
 // RUN: tco %s | FileCheck %s
 // RUN: tco %s --mlir-pass-statistics --mlir-pass-statistics-display=pipeline 2>&1 | FileCheck %s --check-prefix=PASSES
 
+// REQUIRES: asserts
+
 // Check that tco is working with a basic test.
 // Also check the passes in the default pipeline.