https://gcc.gnu.org/g:5ed84110cc97456c483a0957048a225e68c67128
commit r15-10809-g5ed84110cc97456c483a0957048a225e68c67128 Author: Kyrylo Tkachov <[email protected]> Date: Fri Feb 6 02:34:29 2026 -0800 aarch64: Adjust SVE vector costs for NVIDIA Olympus After some more analysis, I'd like to adjust the SVE load cost for NVIDIA Olympus to more accurately reflect the core SWOG. This leads to more sensible Advanced SIMD vs SVE autovec decisions. Bootstrapped and tested on aarch64-none-linux-gnu. Signed-off-by: Kyrylo Tkachov <[email protected]> gcc/ChangeLog * config/aarch64/tuning_models/olympus.h (olympus_sve_vector_cost): Set align_load_cost to 6. (cherry picked from commit 4d2af0735063ab7d38c4da0ec6f992276af855af) Diff: --- gcc/config/aarch64/tuning_models/olympus.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/aarch64/tuning_models/olympus.h b/gcc/config/aarch64/tuning_models/olympus.h index 268789db019a..b62a852eaa78 100644 --- a/gcc/config/aarch64/tuning_models/olympus.h +++ b/gcc/config/aarch64/tuning_models/olympus.h @@ -75,7 +75,7 @@ static sve_vec_cost olympus_sve_vector_cost = 2, /* store_elt_extra_cost */ 8, /* vec_to_scalar_cost */ 4, /* scalar_to_vec_cost */ - 4, /* align_load_cost */ + 6, /* align_load_cost */ 6, /* unalign_load_cost */ 1, /* unalign_store_cost */ 1 /* store_cost */
