[PATCH] Adjust PR84278 testcase

[Richard Biener]

Got quoting of parens wrong.

Tested on x86_64-unknown-linux-gnu, applied.

Richard.

2018-02-09  Richard Biener  <rguent...@suse.de>

        PR tree-optimization/84278
        * gcc.target/i386/pr84278.c: Adjust regex.

Index: gcc/testsuite/gcc.target/i386/pr84278.c
===================================================================
--- gcc/testsuite/gcc.target/i386/pr84278.c     (revision 257491)
+++ gcc/testsuite/gcc.target/i386/pr84278.c     (working copy)
@@ -15,4 +15,4 @@ void foo(void)
     }
 }
 
-/* { dg-final { scan-assembler-not "\(%.sp\)" } } */
+/* { dg-final { scan-assembler-not "\\\(%.sp\\\)" } } */