[PATCH] S/390: Disable 3 global-array-* tests for 31-bit mode

[Ilya Leoshkevich]

These tests rely on larl->movdi merge, which is not implemented for
31-bit mode.

gcc/testsuite/ChangeLog:

2018-11-14  Ilya Leoshkevich  <i...@linux.ibm.com>

        * gcc.target/s390/global-array-almost-huge-element.c: Run only
        in 64-bit mode.
        * gcc.target/s390/global-array-almost-negative-huge-element.c:
        Likewise.
        * gcc.target/s390/global-array-even-element.c: Likewise.
---
 .../gcc.target/s390/global-array-almost-huge-element.c          | 2 +-
 .../gcc.target/s390/global-array-almost-negative-huge-element.c | 2 +-
 gcc/testsuite/gcc.target/s390/global-array-even-element.c       | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.target/s390/global-array-almost-huge-element.c 
b/gcc/testsuite/gcc.target/s390/global-array-almost-huge-element.c
index 28e4ccd9bdd..afbe1646802 100644
--- a/gcc/testsuite/gcc.target/s390/global-array-almost-huge-element.c
+++ b/gcc/testsuite/gcc.target/s390/global-array-almost-huge-element.c
@@ -1,5 +1,5 @@
 /* Test the maximum possible LARL offset.  */
-/* { dg-do compile } */
+/* { dg-do compile { target lp64 } } */
 /* { dg-options "-O1" } */
 
 extern char a[] __attribute__ ((aligned (2)));
diff --git 
a/gcc/testsuite/gcc.target/s390/global-array-almost-negative-huge-element.c 
b/gcc/testsuite/gcc.target/s390/global-array-almost-negative-huge-element.c
index 0012ceb8d49..a171f14db87 100644
--- a/gcc/testsuite/gcc.target/s390/global-array-almost-negative-huge-element.c
+++ b/gcc/testsuite/gcc.target/s390/global-array-almost-negative-huge-element.c
@@ -1,5 +1,5 @@
 /* Test the minimum LARL offset.  */
-/* { dg-do compile } */
+/* { dg-do compile { target lp64 } } */
 /* { dg-options "-O1" } */
 
 extern char a[] __attribute__ ((aligned (2)));
diff --git a/gcc/testsuite/gcc.target/s390/global-array-even-element.c 
b/gcc/testsuite/gcc.target/s390/global-array-even-element.c
index 5737f7e3496..a17b0c28112 100644
--- a/gcc/testsuite/gcc.target/s390/global-array-even-element.c
+++ b/gcc/testsuite/gcc.target/s390/global-array-even-element.c
@@ -1,5 +1,5 @@
 /* Test accesses to even global array elements.  */
-/* { dg-do compile } */
+/* { dg-do compile { target lp64 } } */
 /* { dg-options "-O1" } */
 
 extern char a[] __attribute__ ((aligned (2)));
-- 
2.19.1