[gcc(refs/vendors/redhat/heads/gcc-10-branch)] aarch64: Fix pr71727.c failure

[Jakub Jelinek]

https://gcc.gnu.org/g:a044dfb0934c3caea0886dbb497181e3aca660df

commit a044dfb0934c3caea0886dbb497181e3aca660df
Author: Richard Sandiford <richard.sandiford@arm.com>
Date:   Sun Jan 26 12:47:23 2020 +0000

    aarch64: Fix pr71727.c failure
    
    This test started failing after the switch to -fno-common because we can
    now force the array to be aligned to 16 bytes, which in turn lets us use
    SIMD accesses.  Locally restoring -fcommon seems the most faithful to
    the original PR.
    
    2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>
    
    gcc/testsuite/
    	PR testsuite/71727
    	* gcc.target/aarch64/pr71727.c: Add -fcommon.

Diff:
---
 gcc/testsuite/ChangeLog                    | 5 +++++
 gcc/testsuite/gcc.target/aarch64/pr71727.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index e892877..4359aa1 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2020-01-27  Richard Sandiford  <richard.sandiford@arm.com>
+
+	PR testsuite/71727
+	* gcc.target/aarch64/pr71727.c: Add -fcommon.
+
 2020-01-27  David Malcolm  <dmalcolm@redhat.com>
 
 	* gcc.dg/analyzer/sigsetjmp-5.c: New test.
diff --git a/gcc/testsuite/gcc.target/aarch64/pr71727.c b/gcc/testsuite/gcc.target/aarch64/pr71727.c
index 05eef3e..41fa72b 100644
--- a/gcc/testsuite/gcc.target/aarch64/pr71727.c
+++ b/gcc/testsuite/gcc.target/aarch64/pr71727.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-mstrict-align -O3" } */
+/* { dg-options "-mstrict-align -O3 -fcommon" } */
 
 struct test_struct_s
 {