Index: src/tests/.expect/32/KRfunctions.txt
===================================================================
--- src/tests/.expect/32/KRfunctions.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/32/KRfunctions.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -6,11 +6,11 @@
 extern int printf(const char *__restrict __format, ...);
 int __f0__Fi_iPCii__1(int __a__i_1, const int *__b__PCi_1, int __c__i_1){
-    int ___retval_f0__i_1;
+    __attribute__ ((unused)) int ___retval_f0__i_1;
 }
 int __f1__Fi_PiiPi__1(int *__a__Pi_1, __attribute__ ((unused)) int __b__i_1, int *__c__Pi_1){
-    int ___retval_f1__i_1;
+    __attribute__ ((unused)) int ___retval_f1__i_1;
 }
 int __f2__Fi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int ___retval_f2__i_1;
+    __attribute__ ((unused)) int ___retval_f2__i_1;
 }
 struct S {
@@ -40,27 +40,27 @@
 }
 int __f3__Fi_2sS2sSPi__1(struct S __a__2sS_1, struct S __b__2sS_1, int *__c__Pi_1){
-    int ___retval_f3__i_1;
+    __attribute__ ((unused)) int ___retval_f3__i_1;
     struct S __s__2sS_2;
 }
 int __f4__Fi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int ___retval_f4__i_1;
+    __attribute__ ((unused)) int ___retval_f4__i_1;
 }
 int __f5__Fi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int ___retval_f5__i_1;
+    __attribute__ ((unused)) int ___retval_f5__i_1;
 }
 int (*__f6__FPFi_i__iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))(int __anonymous_object0){
-    int (*___retval_f6__PFi_i__1)(int __anonymous_object1);
+    __attribute__ ((unused)) int (*___retval_f6__PFi_i__1)(int __anonymous_object1);
 }
 int (*__f7__FPFi_ii__iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))(int __a__i_1, int __b__i_1){
-    int (*___retval_f7__PFi_ii__1)(int __a__i_1, int __b__i_1);
+    __attribute__ ((unused)) int (*___retval_f7__PFi_ii__1)(int __a__i_1, int __b__i_1);
 }
 int *__f8__FPi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int *___retval_f8__Pi_1;
+    __attribute__ ((unused)) int *___retval_f8__Pi_1;
 }
 int *const __f9__FCPi_PiiPi__1(int *__a__Pi_1, int __b__i_1, int *__c__Pi_1){
-    int *const ___retval_f9__CPi_1;
+    __attribute__ ((unused)) int *const ___retval_f9__CPi_1;
 }
 int *(*__f10__FPFPi_ii__iPiPid__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1, double __y__d_1))(int __x__i_1, int __y__i_1){
-    int *(*___retval_f10__PFPi_ii__1)(int __x__i_1, int __y__i_1);
+    __attribute__ ((unused)) int *(*___retval_f10__PFPi_ii__1)(int __x__i_1, int __y__i_1);
     int *__x__FPi_ii__2(int __anonymous_object2, int __anonymous_object3);
     ((void)(___retval_f10__PFPi_ii__1=__x__FPi_ii__2) /* ?{} */);
@@ -68,17 +68,17 @@
 }
 int (*__f11__FPA0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[]{
-    int (*___retval_f11__PA0i_1)[];
+    __attribute__ ((unused)) int (*___retval_f11__PA0i_1)[];
 }
 int (*__f12__FPA0A0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[][((unsigned int )10)]{
-    int (*___retval_f12__PA0A0i_1)[][((unsigned int )10)];
+    __attribute__ ((unused)) int (*___retval_f12__PA0A0i_1)[][((unsigned int )10)];
 }
 int (*__f13__FPA0A0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[][((unsigned int )10)]{
-    int (*___retval_f13__PA0A0i_1)[][((unsigned int )10)];
+    __attribute__ ((unused)) int (*___retval_f13__PA0A0i_1)[][((unsigned int )10)];
 }
 int (*__f14__FPA0A0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[][((unsigned int )10)]{
-    int (*___retval_f14__PA0A0i_1)[][((unsigned int )10)];
+    __attribute__ ((unused)) int (*___retval_f14__PA0A0i_1)[][((unsigned int )10)];
 }
 const int __fred__FCi___1(){
-    const int ___retval_fred__Ci_1;
+    __attribute__ ((unused)) const int ___retval_fred__Ci_1;
     int *(*__x__PFPi_ii__2)(int __anonymous_object4, int __anonymous_object5);
     int __a__i_2;
@@ -88,8 +88,8 @@
     ((void)((*((int *(**)(int __x__i_1, int __y__i_1))(&_tmp_cp_ret0)))) /* ^?{} */);
     const int __f1__FCi_iPiPi__2(int __a__i_2, int *__b__Pi_2, int *__c__Pi_2){
-        const int ___retval_f1__Ci_2;
+        __attribute__ ((unused)) const int ___retval_f1__Ci_2;
     }
     const int __f2__FCi_iii__2(int __a__i_2, int __b__i_2, int __c__i_2){
-        const int ___retval_f2__Ci_2;
+        __attribute__ ((unused)) const int ___retval_f2__Ci_2;
     }
 }
Index: src/tests/.expect/32/attributes.txt
===================================================================
--- src/tests/.expect/32/attributes.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/32/attributes.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -6,5 +6,5 @@
 extern int printf(const char *__restrict __format, ...);
 int __la__Fi___1(){
-    int ___retval_la__i_1;
+    __attribute__ ((unused)) int ___retval_la__i_1;
     L: __attribute__ ((unused)) ((void)1);
 }
@@ -226,20 +226,20 @@
 __attribute__ ((unused,used)) int __f1__Fi___1();
 __attribute__ ((unused)) int __f1__Fi___1(){
-    int ___retval_f1__i_1;
+    __attribute__ ((unused)) int ___retval_f1__i_1;
 }
 __attribute__ ((unused,unused,unused,used)) int **const __f2__FCPPi___1();
 __attribute__ ((unused,unused,unused)) int **const __f2__FCPPi___1(){
-    int **const ___retval_f2__CPPi_1;
+    __attribute__ ((unused)) int **const ___retval_f2__CPPi_1;
 }
 __attribute__ ((unused,used,unused)) int (*__f3__FPA0i_i__1(int __anonymous_object1))[];
 __attribute__ ((unused,unused)) int (*__f3__FPA0i_i__1(int __p__i_1))[]{
-    int (*___retval_f3__PA0i_1)[];
+    __attribute__ ((unused)) int (*___retval_f3__PA0i_1)[];
 }
 __attribute__ ((unused,used,unused)) int (*__f4__FPFi_i____1())(int __anonymous_object2);
 __attribute__ ((unused,unused)) int (*__f4__FPFi_i____1())(int __anonymous_object3){
-    int (*___retval_f4__PFi_i__1)(int __anonymous_object4);
+    __attribute__ ((unused)) int (*___retval_f4__PFi_i__1)(int __anonymous_object4);
 }
 int __vtr__Fi___1(){
-    int ___retval_vtr__i_1;
+    __attribute__ ((unused)) int ___retval_vtr__i_1;
     __attribute__ ((unused,unused,used)) int __t1__i_2;
     __attribute__ ((unused,unused,unused,unused,unused)) int **__t2__PPi_2;
@@ -251,17 +251,17 @@
 int __ipd1__Fi_ii__1(__attribute__ ((unused,unused,unused)) int __p__i_1, __attribute__ ((unused,unused,unused)) int __q__i_1);
 int __ipd1__Fi_ii__1(__attribute__ ((unused,unused,unused)) int __p__i_1, __attribute__ ((unused,unused,unused)) int __q__i_1){
-    int ___retval_ipd1__i_1;
+    __attribute__ ((unused)) int ___retval_ipd1__i_1;
 }
 int __ipd2__Fi_PiPi__1(__attribute__ ((unused,unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1);
 int __ipd2__Fi_PiPi__1(__attribute__ ((unused,unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1){
-    int ___retval_ipd2__i_1;
+    __attribute__ ((unused)) int ___retval_ipd2__i_1;
 }
 int __ipd3__Fi_PiPi__1(__attribute__ ((unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1);
 int __ipd3__Fi_PiPi__1(__attribute__ ((unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1){
-    int ___retval_ipd3__i_1;
+    __attribute__ ((unused)) int ___retval_ipd3__i_1;
 }
 int __ipd4__Fi_PFi__PFi____1(__attribute__ ((unused,unused,unused)) int (*__p__PFi___1)(), __attribute__ ((unused,unused,unused)) int (*__q__PFi___1)());
 int __ipd4__Fi_PFi__PFi____1(__attribute__ ((unused,unused,unused)) int (*__p__PFi___1)(), __attribute__ ((unused,unused,unused)) int (*__q__PFi___1)()){
-    int ___retval_ipd4__i_1;
+    __attribute__ ((unused)) int ___retval_ipd4__i_1;
 }
 int __tpr1__Fi_i__1(__attribute__ ((unused,unused,unused)) int __Foo__i_1);
@@ -273,5 +273,5 @@
 int __tpr7__Fi_PFi_PFi_i____1(__attribute__ ((unused,unused)) int (*__anonymous_object7)(__attribute__ ((unused)) int (*__anonymous_object8)(__attribute__ ((unused,unused)) int __anonymous_object9)));
 int __ad__Fi___1(){
-    int ___retval_ad__i_1;
+    __attribute__ ((unused)) int ___retval_ad__i_1;
     __attribute__ ((used,unused)) int __ad1__i_2;
     __attribute__ ((unused,unused,unused)) int *__ad2__Pi_2;
Index: src/tests/.expect/32/declarationSpecifier.txt
===================================================================
--- src/tests/.expect/32/declarationSpecifier.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/32/declarationSpecifier.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -670,5 +670,5 @@
 static inline volatile const short __f48__FCVs___1();
 int __main__Fi_iPPCc__1(int __argc__i_1, const char **__argv__PPCc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     ((void)(___retval_main__i_1=((int )0)) /* ?{} */);
     return ((int )___retval_main__i_1);
@@ -685,5 +685,5 @@
 static inline int invoke_main(int argc, char **argv, char **envp);
 int main(int __argc__i_1, char **__argv__PPc_1, char **__envp__PPc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     int _tmp_cp_ret0;
     ((void)(___retval_main__i_1=((_tmp_cp_ret0=invoke_main(__argc__i_1, __argv__PPc_1, __envp__PPc_1)) , _tmp_cp_ret0)) /* ?{} */);
Index: src/tests/.expect/32/extension.txt
===================================================================
--- src/tests/.expect/32/extension.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/32/extension.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -85,5 +85,5 @@
 __extension__ int j;
 __extension__ int __fred__Fi_i__1(int __p__i_1){
-    int ___retval_fred__i_1;
+    __attribute__ ((unused)) int ___retval_fred__i_1;
     __extension__ struct S {
         __extension__ int __a__i_2;
@@ -105,5 +105,5 @@
     ((void)((*((int *)(&_tmp_cp_ret0)))) /* ^?{} */);
     __extension__ int __mary__Fi_i__2(int __p__i_2){
-        int ___retval_mary__i_2;
+        __attribute__ ((unused)) int ___retval_mary__i_2;
     }
     ((void)__extension__ sizeof(3));
Index: src/tests/.expect/32/gccExtensions.txt
===================================================================
--- src/tests/.expect/32/gccExtensions.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/32/gccExtensions.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -7,5 +7,5 @@
 extern int __x__i_1 asm ( "xx" );
 int __main__Fi_iPPCc__1(int __argc__i_1, const char **__argv__PPCc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     asm ( "nop" :  :  :  );
     asm ( "nop" :  :  :  );
@@ -26,8 +26,8 @@
     const int __i3__Ci_2;
     inline int __f1__Fi___2(){
-        int ___retval_f1__i_2;
+        __attribute__ ((unused)) int ___retval_f1__i_2;
     }
     inline int __f2__Fi___2(){
-        int ___retval_f2__i_2;
+        __attribute__ ((unused)) int ___retval_f2__i_2;
     }
     int __s1__i_2;
@@ -182,5 +182,5 @@
 static inline int invoke_main(int argc, char **argv, char **envp);
 int main(int __argc__i_1, char **__argv__PPc_1, char **__envp__PPc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     int _tmp_cp_ret0;
     ((void)(___retval_main__i_1=((_tmp_cp_ret0=invoke_main(__argc__i_1, __argv__PPc_1, __envp__PPc_1)) , _tmp_cp_ret0)) /* ?{} */);
Index: src/tests/.expect/64/KRfunctions.txt
===================================================================
--- src/tests/.expect/64/KRfunctions.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/64/KRfunctions.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -6,11 +6,11 @@
 extern int printf(const char *__restrict __format, ...);
 int __f0__Fi_iPCii__1(int __a__i_1, const int *__b__PCi_1, int __c__i_1){
-    int ___retval_f0__i_1;
+    __attribute__ ((unused)) int ___retval_f0__i_1;
 }
 int __f1__Fi_PiiPi__1(int *__a__Pi_1, __attribute__ ((unused)) int __b__i_1, int *__c__Pi_1){
-    int ___retval_f1__i_1;
+    __attribute__ ((unused)) int ___retval_f1__i_1;
 }
 int __f2__Fi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int ___retval_f2__i_1;
+    __attribute__ ((unused)) int ___retval_f2__i_1;
 }
 struct S {
@@ -40,27 +40,27 @@
 }
 int __f3__Fi_2sS2sSPi__1(struct S __a__2sS_1, struct S __b__2sS_1, int *__c__Pi_1){
-    int ___retval_f3__i_1;
+    __attribute__ ((unused)) int ___retval_f3__i_1;
     struct S __s__2sS_2;
 }
 int __f4__Fi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int ___retval_f4__i_1;
+    __attribute__ ((unused)) int ___retval_f4__i_1;
 }
 int __f5__Fi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int ___retval_f5__i_1;
+    __attribute__ ((unused)) int ___retval_f5__i_1;
 }
 int (*__f6__FPFi_i__iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))(int __anonymous_object0){
-    int (*___retval_f6__PFi_i__1)(int __anonymous_object1);
+    __attribute__ ((unused)) int (*___retval_f6__PFi_i__1)(int __anonymous_object1);
 }
 int (*__f7__FPFi_ii__iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))(int __a__i_1, int __b__i_1){
-    int (*___retval_f7__PFi_ii__1)(int __a__i_1, int __b__i_1);
+    __attribute__ ((unused)) int (*___retval_f7__PFi_ii__1)(int __a__i_1, int __b__i_1);
 }
 int *__f8__FPi_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1){
-    int *___retval_f8__Pi_1;
+    __attribute__ ((unused)) int *___retval_f8__Pi_1;
 }
 int *const __f9__FCPi_PiiPi__1(int *__a__Pi_1, int __b__i_1, int *__c__Pi_1){
-    int *const ___retval_f9__CPi_1;
+    __attribute__ ((unused)) int *const ___retval_f9__CPi_1;
 }
 int *(*__f10__FPFPi_ii__iPiPid__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1, double __y__d_1))(int __x__i_1, int __y__i_1){
-    int *(*___retval_f10__PFPi_ii__1)(int __x__i_1, int __y__i_1);
+    __attribute__ ((unused)) int *(*___retval_f10__PFPi_ii__1)(int __x__i_1, int __y__i_1);
     int *__x__FPi_ii__2(int __anonymous_object2, int __anonymous_object3);
     ((void)(___retval_f10__PFPi_ii__1=__x__FPi_ii__2) /* ?{} */);
@@ -68,17 +68,17 @@
 }
 int (*__f11__FPA0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[]{
-    int (*___retval_f11__PA0i_1)[];
+    __attribute__ ((unused)) int (*___retval_f11__PA0i_1)[];
 }
 int (*__f12__FPA0A0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[][((long unsigned int )10)]{
-    int (*___retval_f12__PA0A0i_1)[][((long unsigned int )10)];
+    __attribute__ ((unused)) int (*___retval_f12__PA0A0i_1)[][((long unsigned int )10)];
 }
 int (*__f13__FPA0A0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[][((long unsigned int )10)]{
-    int (*___retval_f13__PA0A0i_1)[][((long unsigned int )10)];
+    __attribute__ ((unused)) int (*___retval_f13__PA0A0i_1)[][((long unsigned int )10)];
 }
 int (*__f14__FPA0A0i_iPiPi__1(int __a__i_1, int *__b__Pi_1, int *__c__Pi_1))[][((long unsigned int )10)]{
-    int (*___retval_f14__PA0A0i_1)[][((long unsigned int )10)];
+    __attribute__ ((unused)) int (*___retval_f14__PA0A0i_1)[][((long unsigned int )10)];
 }
 const int __fred__FCi___1(){
-    const int ___retval_fred__Ci_1;
+    __attribute__ ((unused)) const int ___retval_fred__Ci_1;
     int *(*__x__PFPi_ii__2)(int __anonymous_object4, int __anonymous_object5);
     int __a__i_2;
@@ -88,8 +88,8 @@
     ((void)((*((int *(**)(int __x__i_1, int __y__i_1))(&_tmp_cp_ret0)))) /* ^?{} */);
     const int __f1__FCi_iPiPi__2(int __a__i_2, int *__b__Pi_2, int *__c__Pi_2){
-        const int ___retval_f1__Ci_2;
+        __attribute__ ((unused)) const int ___retval_f1__Ci_2;
     }
     const int __f2__FCi_iii__2(int __a__i_2, int __b__i_2, int __c__i_2){
-        const int ___retval_f2__Ci_2;
+        __attribute__ ((unused)) const int ___retval_f2__Ci_2;
     }
 }
Index: src/tests/.expect/64/attributes.txt
===================================================================
--- src/tests/.expect/64/attributes.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/64/attributes.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -6,5 +6,5 @@
 extern int printf(const char *__restrict __format, ...);
 int __la__Fi___1(){
-    int ___retval_la__i_1;
+    __attribute__ ((unused)) int ___retval_la__i_1;
     L: __attribute__ ((unused)) ((void)1);
 }
@@ -226,20 +226,20 @@
 __attribute__ ((unused,used)) int __f1__Fi___1();
 __attribute__ ((unused)) int __f1__Fi___1(){
-    int ___retval_f1__i_1;
+    __attribute__ ((unused)) int ___retval_f1__i_1;
 }
 __attribute__ ((unused,unused,unused,used)) int **const __f2__FCPPi___1();
 __attribute__ ((unused,unused,unused)) int **const __f2__FCPPi___1(){
-    int **const ___retval_f2__CPPi_1;
+    __attribute__ ((unused)) int **const ___retval_f2__CPPi_1;
 }
 __attribute__ ((unused,used,unused)) int (*__f3__FPA0i_i__1(int __anonymous_object1))[];
 __attribute__ ((unused,unused)) int (*__f3__FPA0i_i__1(int __p__i_1))[]{
-    int (*___retval_f3__PA0i_1)[];
+    __attribute__ ((unused)) int (*___retval_f3__PA0i_1)[];
 }
 __attribute__ ((unused,used,unused)) int (*__f4__FPFi_i____1())(int __anonymous_object2);
 __attribute__ ((unused,unused)) int (*__f4__FPFi_i____1())(int __anonymous_object3){
-    int (*___retval_f4__PFi_i__1)(int __anonymous_object4);
+    __attribute__ ((unused)) int (*___retval_f4__PFi_i__1)(int __anonymous_object4);
 }
 int __vtr__Fi___1(){
-    int ___retval_vtr__i_1;
+    __attribute__ ((unused)) int ___retval_vtr__i_1;
     __attribute__ ((unused,unused,used)) int __t1__i_2;
     __attribute__ ((unused,unused,unused,unused,unused)) int **__t2__PPi_2;
@@ -251,17 +251,17 @@
 int __ipd1__Fi_ii__1(__attribute__ ((unused,unused,unused)) int __p__i_1, __attribute__ ((unused,unused,unused)) int __q__i_1);
 int __ipd1__Fi_ii__1(__attribute__ ((unused,unused,unused)) int __p__i_1, __attribute__ ((unused,unused,unused)) int __q__i_1){
-    int ___retval_ipd1__i_1;
+    __attribute__ ((unused)) int ___retval_ipd1__i_1;
 }
 int __ipd2__Fi_PiPi__1(__attribute__ ((unused,unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1);
 int __ipd2__Fi_PiPi__1(__attribute__ ((unused,unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1){
-    int ___retval_ipd2__i_1;
+    __attribute__ ((unused)) int ___retval_ipd2__i_1;
 }
 int __ipd3__Fi_PiPi__1(__attribute__ ((unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1);
 int __ipd3__Fi_PiPi__1(__attribute__ ((unused,unused,unused)) int *__p__Pi_1, __attribute__ ((unused,unused,unused)) int *__q__Pi_1){
-    int ___retval_ipd3__i_1;
+    __attribute__ ((unused)) int ___retval_ipd3__i_1;
 }
 int __ipd4__Fi_PFi__PFi____1(__attribute__ ((unused,unused,unused)) int (*__p__PFi___1)(), __attribute__ ((unused,unused,unused)) int (*__q__PFi___1)());
 int __ipd4__Fi_PFi__PFi____1(__attribute__ ((unused,unused,unused)) int (*__p__PFi___1)(), __attribute__ ((unused,unused,unused)) int (*__q__PFi___1)()){
-    int ___retval_ipd4__i_1;
+    __attribute__ ((unused)) int ___retval_ipd4__i_1;
 }
 int __tpr1__Fi_i__1(__attribute__ ((unused,unused,unused)) int __Foo__i_1);
@@ -273,5 +273,5 @@
 int __tpr7__Fi_PFi_PFi_i____1(__attribute__ ((unused,unused)) int (*__anonymous_object7)(__attribute__ ((unused)) int (*__anonymous_object8)(__attribute__ ((unused,unused)) int __anonymous_object9)));
 int __ad__Fi___1(){
-    int ___retval_ad__i_1;
+    __attribute__ ((unused)) int ___retval_ad__i_1;
     __attribute__ ((used,unused)) int __ad1__i_2;
     __attribute__ ((unused,unused,unused)) int *__ad2__Pi_2;
Index: src/tests/.expect/64/declarationSpecifier.txt
===================================================================
--- src/tests/.expect/64/declarationSpecifier.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/64/declarationSpecifier.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -670,5 +670,5 @@
 static inline volatile const short __f48__FCVs___1();
 int __main__Fi_iPPCc__1(int __argc__i_1, const char **__argv__PPCc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     ((void)(___retval_main__i_1=((int )0)) /* ?{} */);
     return ((int )___retval_main__i_1);
@@ -685,5 +685,5 @@
 static inline int invoke_main(int argc, char **argv, char **envp);
 int main(int __argc__i_1, char **__argv__PPc_1, char **__envp__PPc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     int _tmp_cp_ret0;
     ((void)(___retval_main__i_1=((_tmp_cp_ret0=invoke_main(__argc__i_1, __argv__PPc_1, __envp__PPc_1)) , _tmp_cp_ret0)) /* ?{} */);
Index: src/tests/.expect/64/extension.txt
===================================================================
--- src/tests/.expect/64/extension.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/64/extension.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -85,5 +85,5 @@
 __extension__ int j;
 __extension__ int __fred__Fi_i__1(int __p__i_1){
-    int ___retval_fred__i_1;
+    __attribute__ ((unused)) int ___retval_fred__i_1;
     __extension__ struct S {
         __extension__ int __a__i_2;
@@ -105,5 +105,5 @@
     ((void)((*((int *)(&_tmp_cp_ret0)))) /* ^?{} */);
     __extension__ int __mary__Fi_i__2(int __p__i_2){
-        int ___retval_mary__i_2;
+        __attribute__ ((unused)) int ___retval_mary__i_2;
     }
     ((void)__extension__ sizeof(3));
Index: src/tests/.expect/64/gccExtensions.txt
===================================================================
--- src/tests/.expect/64/gccExtensions.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/64/gccExtensions.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -7,5 +7,5 @@
 extern int __x__i_1 asm ( "xx" );
 int __main__Fi_iPPCc__1(int __argc__i_1, const char **__argv__PPCc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     asm ( "nop" :  :  :  );
     asm ( "nop" :  :  :  );
@@ -26,8 +26,8 @@
     const int __i3__Ci_2;
     inline int __f1__Fi___2(){
-        int ___retval_f1__i_2;
+        __attribute__ ((unused)) int ___retval_f1__i_2;
     }
     inline int __f2__Fi___2(){
-        int ___retval_f2__i_2;
+        __attribute__ ((unused)) int ___retval_f2__i_2;
     }
     int __s1__i_2;
@@ -182,5 +182,5 @@
 static inline int invoke_main(int argc, char **argv, char **envp);
 int main(int __argc__i_1, char **__argv__PPc_1, char **__envp__PPc_1){
-    int ___retval_main__i_1;
+    __attribute__ ((unused)) int ___retval_main__i_1;
     int _tmp_cp_ret0;
     ((void)(___retval_main__i_1=((_tmp_cp_ret0=invoke_main(__argc__i_1, __argv__PPc_1, __envp__PPc_1)) , _tmp_cp_ret0)) /* ?{} */);
Index: src/tests/.expect/scopeErrors.txt
===================================================================
--- src/tests/.expect/scopeErrors.txt	(revision 667c7da24d1364ab0116bfde1d2ec197a3e972b4)
+++ src/tests/.expect/scopeErrors.txt	(revision fda816874a6a323b57c9ce0409b20c6c3ddea4cf)
@@ -3,6 +3,7 @@
   with parameters
     double
-  returning 
-    _retval_butThisIsAnError: double
-  with body 
+  returning
+    _retval_butThisIsAnError:       Attribute with name: unused
+double
+  with body
     CompoundStmt