[Committed, GCC, AArch64] Disable tests for ilp32.

[Sudakshina Das]

Hi

Currently Return Address Signing is only supported in lp64. Thus the
tests that I added recently (that enables return address signing by the
mbranch-protection=standard option), should also be exempted from testing in
ilp32. This patch adds the needed dg-require-effective-target directive 
in the
tests.

*** gcc/testsuite/ChangeLog ***

2019-01-10  Sudakshina Das  <sudi....@arm.com>

        * gcc.target/aarch64/bti-1.c: Exempt for ilp32.
        * gcc.target/aarch64/bti-2.c: Likewise.
        * gcc.target/aarch64/bti-3.c: Likewise.

Only test directive change, hence only tested the above tests with:
RUNTESTFLAGS="--target_board \"unix{-mabi=ilp32}\" aarch64.exp=<test>"

Committed as obvious as r267818

Thanks
Sudi

diff --git a/gcc/testsuite/gcc.target/aarch64/bti-1.c b/gcc/testsuite/gcc.target/aarch64/bti-1.c
index 975528cccccbf290af421f20d8c7edaef22a6bd6..5a556b08ed15679b25676a11fe9c7a64641ee671 100644
--- a/gcc/testsuite/gcc.target/aarch64/bti-1.c
+++ b/gcc/testsuite/gcc.target/aarch64/bti-1.c
@@ -1,6 +1,7 @@
 /* { dg-do compile } */
 /* -Os to create jump table.  */
 /* { dg-options "-Os" } */
+/* { dg-require-effective-target lp64 } */
 /* If configured with --enable-standard-branch-protection, don't use
    command line option.  */
 /* { dg-additional-options "-mbranch-protection=standard" { target { ! default_branch_protection } } } */
diff --git a/gcc/testsuite/gcc.target/aarch64/bti-2.c b/gcc/testsuite/gcc.target/aarch64/bti-2.c
index 85943c3d6415b010c858cb948221e33b0d30a310..6ad89284e1b74ec92ff4661e6a71c92230450d58 100644
--- a/gcc/testsuite/gcc.target/aarch64/bti-2.c
+++ b/gcc/testsuite/gcc.target/aarch64/bti-2.c
@@ -1,4 +1,5 @@
 /* { dg-do run } */
+/* { dg-require-effective-target lp64 } */
 /* { dg-require-effective-target aarch64_bti_hw } */
 /* If configured with --enable-standard-branch-protection, don't use
    command line option.  */
diff --git a/gcc/testsuite/gcc.target/aarch64/bti-3.c b/gcc/testsuite/gcc.target/aarch64/bti-3.c
index 97cf5d37f42b9313da75481c2ceac884735ac995..9ff9f9d6be1d8708f34f50dc7303a1783c18f204 100644
--- a/gcc/testsuite/gcc.target/aarch64/bti-3.c
+++ b/gcc/testsuite/gcc.target/aarch64/bti-3.c
@@ -1,6 +1,7 @@
 /* This is a copy of gcc/testsuite/gcc.c-torture/execute/pr56982.c to test the
    setjmp case of the bti pass.  */
 /* { dg-do run } */
+/* { dg-require-effective-target lp64 } */
 /* { dg-require-effective-target aarch64_bti_hw } */
 /* { dg-options "--save-temps -mbranch-protection=standard" } */