[PATCH] pointer-compare-1.c: Add __attribute__((used))

[H.J. Lu via Gcc-patches]

I am going to install this patch as requested:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97803#c5

H.J.
---
c-c++-common/asan/pointer-compare-1.c assumes the certain order for
variable placement.  Add __attribute__((used)) to avoid variable
placement changes due to SHF_GNU_RETAIN.

        PR testsuite/97803
        * c-c++-common/asan/pointer-compare-1.c (global1): Add
        __attribute__((used))
        (global2): Likewise.
        (small_global): Likewise.
        (large_global): Likewise.
---
 gcc/testsuite/c-c++-common/asan/pointer-compare-1.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c 
b/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c
index 1ce349e4917..4b558bf8179 100644
--- a/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c
+++ b/gcc/testsuite/c-c++-common/asan/pointer-compare-1.c
@@ -14,12 +14,13 @@ foo (char *p, char *q)
   v = p > q;
 }
 
-char global1[100] = {}, global2[100] = {};
+char __attribute__((used)) global1[100] = {};
+char __attribute__((used)) global2[100] = {};
 char __attribute__((used)) smallest_global[5] = {};
-char small_global[7] = {};
+char __attribute__((used)) small_global[7] = {};
 char __attribute__((used)) little_global[10] = {};
 char __attribute__((used)) medium_global[4000] = {};
-char large_global[5000] = {};
+char __attribute__((used)) large_global[5000] = {};
 char __attribute__((used)) largest_global[6000] = {};
 
 int
-- 
2.28.0