[gcc r17-2728] testsuite/aarch64: restore the second lane-index error in mf8_data_2.c

https://gcc.gnu.org/g:266b6523fa6eef1d8591466f80f23d39c0912aee

commit r17-2728-g266b6523fa6eef1d8591466f80f23d39c0912aee
Author: Kyrylo Tkachov <[email protected]>
Date:   Sun Jul 26 05:18:54 2026 -0700

    testsuite/aarch64: restore the second lane-index error in mf8_data_2.c
    
    vcopy_lane deliberately diagnoses both out-of-range lane indices: the
    old pragma-builtins checker used & rather than && for exactly that
    reason, and neon_shape::check keeps doing so.
    r17-2020-g4ff8e6ba9f4e ("aarch64: Port NEON lane get/set intrinsics to
    pragma-based framework"), which moved vcopy_lane onto the new shape
    framework, dropped the dg-error for the second index in the same commit,
    so the test reports an excess error.  The diagnostic behaviour is
    identical before and after that port, so the deleted directive was
    almost certainly a leftover from an intermediate revision of the patch.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/aarch64/simd/mf8_data_2.c: Restore the dg-error for
            the second out-of-range lane index of vcopy_lane_mf8.
    
    Signed-off-by: Kyrylo Tkachov <[email protected]>

Diff:
---
 gcc/testsuite/gcc.target/aarch64/simd/mf8_data_2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/testsuite/gcc.target/aarch64/simd/mf8_data_2.c b/gcc/testsuite/gcc.target/aarch64/simd/mf8_data_2.c
index f69165219a84..0f923f247d4a 100644
--- a/gcc/testsuite/gcc.target/aarch64/simd/mf8_data_2.c
+++ b/gcc/testsuite/gcc.target/aarch64/simd/mf8_data_2.c
@@ -14,6 +14,7 @@ void test(mfloat8x8_t x8, mfloat8x16_t x16,
   vcopy_lane_mf8(x8, 0, x8, -1); /* { dg-error {passing -1 to argument 4 of 'vcopy_lane_mf8', which expects a value in the range \[0, 7\]} } */
   vcopy_lane_mf8(x8, 0, x8, 8); /* { dg-error {passing 8 to argument 4 of 'vcopy_lane_mf8', which expects a value in the range \[0, 7\]} } */
   vcopy_lane_mf8(x8, 100, x8, 100); /* { dg-error {passing 100 to argument 2 of 'vcopy_lane_mf8', which expects a value in the range \[0, 7\]} } */
+  /* { dg-error {passing 100 to argument 4 of 'vcopy_lane_mf8', which expects a value in the range \[0, 7\]} "" { target *-*-* } .-1 } */
 
   vcopy_laneq_mf8(x8, -1, x16, 0); /* { dg-error {passing -1 to argument 2 of 'vcopy_laneq_mf8', which expects a value in the range \[0, 7\]} } */
   vcopy_laneq_mf8(x8, 8, x16, 0); /* { dg-error {passing 8 to argument 2 of 'vcopy_laneq_mf8', which expects a value in the range \[0, 7\]} } */