diff --git a/gcc/testsuite/gcc.dg/builtin-object-size-21.c b/gcc/testsuite/gcc.dg/builtin-object-size-21.c
index 1c42374ba892294f50aeb8d2c58f109b56359152..7e0f85ffdf3a39e4f1c07ddddb209c2f29d1e137 100644
--- a/gcc/testsuite/gcc.dg/builtin-object-size-21.c
+++ b/gcc/testsuite/gcc.dg/builtin-object-size-21.c
@@ -1,7 +1,8 @@
 /* PR middle-end/92815 - spurious -Wstringop-overflow writing into
    a flexible array of an extern struct
    { dg-do compile }
-   { dg-options "-Wall -fdump-tree-optimized" } */
+   { dg-options "-Wall -fdump-tree-optimized" }
+   { dg-require-effective-target large_initializer } */
 
 #define PTRDIFF_MAX __PTRDIFF_MAX__
 
diff --git a/gcc/testsuite/gcc.dg/strlenopt-55.c b/gcc/testsuite/gcc.dg/strlenopt-55.c
index ea6fb22a2edbb7899def39581c998c9cc7f56aad..ca89ecd3c53bac2e02c14521212afd3266cd7fd3 100644
--- a/gcc/testsuite/gcc.dg/strlenopt-55.c
+++ b/gcc/testsuite/gcc.dg/strlenopt-55.c
@@ -3,7 +3,8 @@
 
    Verify that strlen() of braced initialized array is folded
    { dg-do compile }
-   { dg-options "-O1 -Wall -fdump-tree-gimple -fdump-tree-optimized" } */
+   { dg-options "-O1 -Wall -fdump-tree-gimple -fdump-tree-optimized" }
+   { dg-require-effective-target large_initializer } */
 
 #include "strlenopt.h"
 
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index e79015b4d5489eb1c9e159fc65a4b5aa11f2eb93..4e0d45aaae5f13513d44c9a11809ffe057f40998 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -10424,3 +10424,14 @@ proc check_effective_target_msp430_large {} {
 	#endif
     } ""]
 }
+
+# Return 1 if the target has an efficient means to encode large initializers
+# in the assembly.
+
+proc check_effective_target_large_initializer { } {
+    if { [istarget nvptx*-*-*] } {
+	return 0
+    }
+
+    return 1
+}