[compiler-rt] [compiler-rt][tests] Disable a test case unsupported on AArch64 (PR #117628)

[Paul Osmialowski via llvm-commits]

https://github.com/pawosm-arm updated https://github.com/llvm/llvm-project/pull/117628

>From fb29076f77c4c695aa7af8dba88106af67ad71c3 Mon Sep 17 00:00:00 2001
From: Paul Osmialowski <pawel.osmialowski at arm.com>
Date: Mon, 25 Nov 2024 20:44:44 +0000
Subject: [PATCH] [compiler-rt][tests] Make this test case pass on AArch64

Initially, we wanted to make this test case unsupported on AArch64,
but there is a value in its coverage, so it is better to make an
amendment that could help it pass.

Atomic loads from a constant address potentially needing to store/cas
has always been an issue, but (hopefully) doesn't come up very often
as it usually doesn't make a lot of sense. It doesn't seem to be a
test for whether you can do an atomic load from constant memory, but
just a test for atomic loads. Hence we can remove the `const` and
the test will make more sense.

See also D92832 and GCC bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80878
---
 compiler-rt/test/builtins/Unit/atomic_test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/test/builtins/Unit/atomic_test.c b/compiler-rt/test/builtins/Unit/atomic_test.c
index f8281f36493793..346c9b3be55a7b 100644
--- a/compiler-rt/test/builtins/Unit/atomic_test.c
+++ b/compiler-rt/test/builtins/Unit/atomic_test.c
@@ -144,7 +144,7 @@ typedef uint64_t maxuint_t;
 
 #define LEN(array) (sizeof(array) / sizeof(array[0]))
 
-__attribute__((aligned(16))) static const char data[] = {
+__attribute__((aligned(16))) static char data[] = {
     0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
     0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
     0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,