diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 86986afc7d0..f0b4a793ef7 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2012-01-22  Richard Sandiford  <rdsandiford@googlemail.com>
+
+	PR target/51931
+	* gcc.c-torture/compile/20001226-1.c: Add nomips16 attribute.
+	* g++.dg/opt/longbranch1.C: Likewise.
+
 2012-01-22  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	* g++.old-deja/g++.pt/ptrmem6.C: xfail a test for ARM and MIPS
diff --git a/gcc/testsuite/g++.dg/opt/longbranch1.C b/gcc/testsuite/g++.dg/opt/longbranch1.C
index a64a57aea2a..df545012cc7 100644
--- a/gcc/testsuite/g++.dg/opt/longbranch1.C
+++ b/gcc/testsuite/g++.dg/opt/longbranch1.C
@@ -26,6 +26,10 @@
         muchcode; muchcode; muchcode; muchcode; muchcode; muchcode; \
         muchcode; muchcode; muchcode; muchcode; muchcode; muchcode
 
+#ifdef __mips
+/* See PR 51931.  */
+__attribute__((nomips16))
+#endif
 int
 main (int argc, char **argv)
 {
diff --git a/gcc/testsuite/gcc.c-torture/compile/20001226-1.c b/gcc/testsuite/gcc.c-torture/compile/20001226-1.c
index 127c4daec45..e833fb044c6 100644
--- a/gcc/testsuite/gcc.c-torture/compile/20001226-1.c
+++ b/gcc/testsuite/gcc.c-torture/compile/20001226-1.c
@@ -21,6 +21,10 @@
 #define C1024(x,y) C256(x,y) C256(x+16,y) C256(x+32,y) C256(x+48,y)
 #define C4096(x,y) C1024(x,y) C1024(x,y+16) C1024(x,y+32) C1024(x,y+48)
 
+#ifdef __mips
+/* See PR 51931.  */
+__attribute__((nomips16))
+#endif
 unsigned foo(int x[64], int y[64])
 {
   C4096(x,y);