diff --git a/gcc/testsuite/gcc.c-torture/compile/mipscop-1.c b/gcc/testsuite/gcc.c-torture/compile/mipscop-1.c
index 8a40ba1c6b7e68c36ab6df842d64b832790f4722..2ba0ee79b8b9216c2867fdddb4fcc8d341c62c82 100644
--- a/gcc/testsuite/gcc.c-torture/compile/mipscop-1.c
+++ b/gcc/testsuite/gcc.c-torture/compile/mipscop-1.c
@@ -1,5 +1,6 @@
 /* { dg-do compile { target mips*-*-* } } */
 
+#include <stdio.h>
 register unsigned int cp0count asm ("$c0r1");
 
 int __attribute__ ((nomips16))
diff --git a/gcc/testsuite/gcc.c-torture/compile/mipscop-2.c b/gcc/testsuite/gcc.c-torture/compile/mipscop-2.c
index 94df41d65f9a24b4ad7d2c1dfc5b32c9f76a0ff7..6fffc8ec098c4d63f03e5a5937bb2eff70e2a088 100644
--- a/gcc/testsuite/gcc.c-torture/compile/mipscop-2.c
+++ b/gcc/testsuite/gcc.c-torture/compile/mipscop-2.c
@@ -1,5 +1,6 @@
 /* { dg-do compile { target mips*-*-* } } */
 
+#include <stdio.h>
 register unsigned int c3r1 asm ("$c3r1");
 
 extern unsigned int b, c;
diff --git a/gcc/testsuite/gcc.c-torture/compile/mipscop-3.c b/gcc/testsuite/gcc.c-torture/compile/mipscop-3.c
index cb4bd4d3efb3eb22d26f51414dba5ca27c26dcda..03e30117bc155fe6b2a6a5e4a5235fd66281ffc4 100644
--- a/gcc/testsuite/gcc.c-torture/compile/mipscop-3.c
+++ b/gcc/testsuite/gcc.c-torture/compile/mipscop-3.c
@@ -1,5 +1,6 @@
 /* { dg-do compile { target mips*-*-* } } */
 
+#include <stdio.h>
 register unsigned int c3r1 asm ("$c3r1"), c3r2 asm ("$c3r2");
 
 extern unsigned int b, c;
diff --git a/gcc/testsuite/gcc.c-torture/compile/mipscop-4.c b/gcc/testsuite/gcc.c-torture/compile/mipscop-4.c
index 263fc5cacc1f58aaff0f9d5762a65556d4c32ab4..7e000c1c68a76df578bfd15e59397f631b56b3ba 100644
--- a/gcc/testsuite/gcc.c-torture/compile/mipscop-4.c
+++ b/gcc/testsuite/gcc.c-torture/compile/mipscop-4.c
@@ -1,5 +1,6 @@
 /* { dg-do compile { target mips*-*-* } } */
 
+#include <stdio.h>
 register unsigned long c3r1 asm ("$c3r1"), c3r2 asm ("$c3r2");
 
 extern unsigned long b, c;