On 29/06/16 18:03, Wilco Dijkstra wrote: > This patch sets the branch cost to the same most optimal setting for all > Cortex cores, > reducing codesize and improving performance due to using more CSEL > instructions. > Set the autoprefetcher model in Cortex-A72 to weak like the others. Enable > AES fusion > in Cortex-A35. As a result generated code is now more similar as well as > more optimal > across Cortex cores. > > Regress passes, OK for commit? >
OK. R. > ChangeLog: > 2016-06-29 Wilco Dijkstra <wdijk...@arm.com> > > * config/aarch64/aarch64.c (cortexa35_tunings): > Enable AES fusion. Use cortexa57_branch_cost. > (cortexa53_tunings): Use cortexa57_branch_cost. > (cortexa72_tunings): Use cortexa57_branch_cost. > Use AUTOPREFETCHER_WEAK. > (cortexa73_tunings): Use cortexa57_branch_cost. > --- > > diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c > index > 7617f9fb273d17653df95eaf22b3cbeae3862230..5a20e175e72b2848499f07fcdf1856b3a7817e49 > 100644 > --- a/gcc/config/aarch64/aarch64.c > +++ b/gcc/config/aarch64/aarch64.c > @@ -448,11 +448,11 @@ static const struct tune_params cortexa35_tunings = > &generic_addrcost_table, > &cortexa53_regmove_cost, > &generic_vector_cost, > - &generic_branch_cost, > + &cortexa57_branch_cost, > &generic_approx_modes, > 4, /* memmov_cost */ > 1, /* issue_rate */ > - (AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD > + (AARCH64_FUSE_AES_AESMC | AARCH64_FUSE_MOV_MOVK | AARCH64_FUSE_ADRP_ADD > | AARCH64_FUSE_MOVK_MOVK | AARCH64_FUSE_ADRP_LDR), /* fusible_ops */ > 8, /* function_align. */ > 8, /* jump_align. */ > @@ -474,7 +474,7 @@ static const struct tune_params cortexa53_tunings = > &generic_addrcost_table, > &cortexa53_regmove_cost, > &generic_vector_cost, > - &generic_branch_cost, > + &cortexa57_branch_cost, > &generic_approx_modes, > 4, /* memmov_cost */ > 2, /* issue_rate */ > @@ -526,7 +526,7 @@ static const struct tune_params cortexa72_tunings = > &cortexa57_addrcost_table, > &cortexa57_regmove_cost, > &cortexa57_vector_cost, > - &generic_branch_cost, > + &cortexa57_branch_cost, > &generic_approx_modes, > 4, /* memmov_cost */ > 3, /* issue_rate */ > @@ -542,7 +542,7 @@ static const struct tune_params cortexa72_tunings = > 2, /* min_div_recip_mul_df. */ > 0, /* max_case_values. */ > 0, /* cache_line_size. */ > - tune_params::AUTOPREFETCHER_OFF, /* autoprefetcher_model. */ > + tune_params::AUTOPREFETCHER_WEAK, /* autoprefetcher_model. */ > (AARCH64_EXTRA_TUNE_NONE) /* tune_flags. */ > }; > > @@ -552,7 +552,7 @@ static const struct tune_params cortexa73_tunings = > &cortexa57_addrcost_table, > &cortexa57_regmove_cost, > &cortexa57_vector_cost, > - &generic_branch_cost, > + &cortexa57_branch_cost, > &generic_approx_modes, > 4, /* memmov_cost. */ > 2, /* issue_rate. */ >
