Fix gcc.dg/asm-4.c

Double-quoted words in Tcl have substitutions performed on them, including
backslash substitutions.  That isn't terribly nice for regular expressions,
so use braced words instead.


2015-09-28  Segher Boessenkool  <segher@kernel.crashing.org>

gcc/testsuite/
	* gcc.dg/asm-4.c: Use braced words for the regular expressions.

From-SVN: r228227

gcc/testsuite/ChangeLog

+2015-09-28  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* gcc.dg/asm-4.c: Use braced words for the regular expressions.
+
 2015-09-28  Paul Thomas  <pault@gcc.gnu.org>
 
 	PR fortran/40054

gcc/testsuite/gcc.dg/asm-4.c

@@ -11,7 +11,6 @@ int main()
   asm volatile ("test3 %[in]" : [inout] "=g"(x) : "[inout]" (x), [in] "g" (y));
 }
 
-/* ??? Someone explain why the back reference dosn't work.  */
-/* { dontdg-final { scan-assembler "test0 X(.*)Y\1Z" } } */
-/* { dontdg-final { scan-assembler "test1 X(.*)Y\1Z" } } */
-/* { dontdg-final { scan-assembler "test2 X(.*)Y\1Z" } } */
+/* { dg-final { scan-assembler {test0 X(.*)Y\1Z} } } */
+/* { dg-final { scan-assembler {test1 X(.*)Y\1Z} } } */
+/* { dg-final { scan-assembler {test2 X(.*)Y\1Z} } } */