https://gcc.gnu.org/g:92d621d9ea0aad3c01c2982ee1b051453945751b
commit r16-6581-g92d621d9ea0aad3c01c2982ee1b051453945751b Author: Tomas Glozar <[email protected]> Date: Thu Jan 8 08:42:01 2026 -0700 [PATCH 2/2] ia64: Expand MAX_VECT_LEN to 16 MAX_VECT_LEN is set to 8 on ia64, which is lower than on all other targets, where it is 16 at minimum. Some of the machine modes of ia64 are internally 16-byte wide, causing stringop-overflow to be unhappy when checking a loop in ia64_vectorize_vec_perm_const(). This causes bootstrap to fail. Make stringop-overflow happy by raising the length to 16. gcc/ChangeLog: * config/ia64/ia64.cc (MAX_VECT_LEN): Set to 16 from 8. Diff: --- gcc/config/ia64/ia64.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/ia64/ia64.cc b/gcc/config/ia64/ia64.cc index 055af3e8617c..92ae6472c3cf 100644 --- a/gcc/config/ia64/ia64.cc +++ b/gcc/config/ia64/ia64.cc @@ -343,7 +343,7 @@ static bool ia64_modes_tieable_p (machine_mode, machine_mode); static bool ia64_can_change_mode_class (machine_mode, machine_mode, reg_class_t); -#define MAX_VECT_LEN 8 +#define MAX_VECT_LEN 16 struct expand_vec_perm_d {
