testsuite: Define PRU stack usage

gcc/testsuite/ChangeLog:

2019-06-12  Dimitar Dimitrov  <dimitar@dinux.eu>

	* gcc.dg/stack-usage-1.c: Define PRU stack usage.

From-SVN: r272209

gcc/testsuite/ChangeLog

 2019-06-12  Dimitar Dimitrov  <dimitar@dinux.eu>
 
+	* gcc.dg/stack-usage-1.c: Define PRU stack usage.
+
+2019-06-12  Dimitar Dimitrov  <dimitar@dinux.eu>
+
 	* gcc.c-torture/execute/20101011-1.c: Define DO_TEST to 0 for PRU.
 	* gcc.dg/20020312-2.c: No PIC register for PRU.
 

gcc/testsuite/gcc.dg/stack-usage-1.c

@@ -93,6 +93,8 @@
 #  define SIZE 254
 #elif defined (__nios2__)
 #  define SIZE 252
+#elif defined (__PRU__)
+#  define SIZE 252
 #elif defined (__v850__)
 #define SIZE 260
 #elif defined (__mn10300__)