Commit c81404f25e for qemu.org

commit c81404f25e697dfcd603ac51c25319aa1fd1f36a
Author: Philippe Mathieu-Daudé <philmd@mailo.com>
Date:   Tue May 19 14:03:45 2026 +0200

    tests/tcg: Explicitly check for 64-bit z/Architecture

    We do not support the 32-bit ESA/390 target, only the
    64-bit z/Architecture.

    Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
    Reviewed-by: Thomas Huth <thuth@redhat.com>
    Message-Id: <20260519171240.97420-5-philmd@linaro.org>

diff --git a/tests/tcg/multiarch/nop_func.h b/tests/tcg/multiarch/nop_func.h
index f714d21000..26d3a76eb6 100644
--- a/tests/tcg/multiarch/nop_func.h
+++ b/tests/tcg/multiarch/nop_func.h
@@ -15,7 +15,7 @@ static const char nop_func[] = {
     0x1e, 0xff, 0x2f, 0xe1,     /* bx lr */
 #elif defined(__riscv)
     0x67, 0x80, 0x00, 0x00,     /* ret */
-#elif defined(__s390__)
+#elif defined(__s390x__)
     0x07, 0xfe,                 /* br %r14 */
 #elif defined(__i386__) || defined(__x86_64__)
     0xc3,                       /* ret */