https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71233
--- Comment #63 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Kyrylo Tkachov <ktkac...@gcc.gnu.org>: https://gcc.gnu.org/g:3fa772a7acfea62a01fb36d1451c8be9c54ba7da commit r9-8954-g3fa772a7acfea62a01fb36d1451c8be9c54ba7da Author: Christophe Lyon <christophe.l...@linaro.org> Date: Fri Sep 25 10:40:18 2020 +0000 testsuite: [aarch64] Fix aarch64/advsimd-intrinsics/v{trn,uzp,zip}_half.c Since r11-3402 (g:65c9878641cbe0ed898aa7047b7b994e9d4a5bb1), the vtrn_half, vuzp_half and vzip_half started failing with vtrn_half.c:76:17: error: redeclaration of 'vector_float64x2' with no linkage vtrn_half.c:77:17: error: redeclaration of 'vector2_float64x2' with no linkage vtrn_half.c:80:17: error: redeclaration of 'vector_res_float64x2' with no linkage This is because r11-3402 now always declares float64x2 variables for aarch64, leading to a duplicate declaration in these testcases. The fix is simply to remove these now useless declarations. These tests are skipped on arm*, so there is no impact on that target. 2020-09-25 Christophe Lyon <christophe.l...@linaro.org> gcc/testsuite/ PR target/71233 * gcc.target/aarch64/advsimd-intrinsics/vtrn_half.c: Remove declarations of vector, vector2, vector_res for float64x2 type. * gcc.target/aarch64/advsimd-intrinsics/vuzp_half.c: Likewise. * gcc.target/aarch64/advsimd-intrinsics/vzip_half.c: Likewise. (cherry picked from commit 8c775bf447e190024fa08c55e38db94dd013a393)