testsuite: robustify gcc.target/m68k/20100512-1.c

This has been failing since r5-2883-g8cb65b3725f0c3 which caused the
memset to be optimized out.  Add an unoptimizable reference to the local
variable to keep it.

	* gcc.target/m68k/20100512-1.c (doTest1, doTest2): Add asm that
	references foo.

diff --git a/gcc/testsuite/gcc.target/m68k/20100512-1.c b/gcc/testsuite/gcc.target/m68k/20100512-1.c
index d07bb519abc1c50ead3f0af6a68205bde9c58e42..ab54a92e9652cfc4383ff11b1a89c2d36ef5a250 100644 (file)
--- a/gcc/testsuite/gcc.target/m68k/20100512-1.c
+++ b/gcc/testsuite/gcc.target/m68k/20100512-1.c
@@ -9,8 +9,10 @@
 void doTest1(void) {
   volatile char foo[10];
   memset((void *)foo, 1, 100);
+  asm volatile("# %0" : : "g"(foo));
 }
 void doTest2(void) {
   volatile char foo[10];
   memset((void *)foo, 1, 100);
+  asm volatile("# %0" : : "g"(foo));
 }