diff options
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 22 | ||||
| -rw-r--r-- | gcc/config/arm/arm.c | 22 | ||||
| -rw-r--r-- | gcc/config/i386/i386-options.c | 6 |
3 files changed, 50 insertions, 0 deletions
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 30d9a0b..36519cc 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -16540,6 +16540,28 @@ aarch64_override_options_internal (struct gcc_options *opts) SET_OPTION_IF_UNSET (opts, &global_options_set, param_l1_cache_line_size, aarch64_tune_params.prefetch->l1_cache_line_size); + + if (aarch64_tune_params.prefetch->l1_cache_line_size >= 0) + { + SET_OPTION_IF_UNSET (opts, &global_options_set, + param_destruct_interfere_size, + aarch64_tune_params.prefetch->l1_cache_line_size); + SET_OPTION_IF_UNSET (opts, &global_options_set, + param_construct_interfere_size, + aarch64_tune_params.prefetch->l1_cache_line_size); + } + else + { + /* For a generic AArch64 target, cover the current range of cache line + sizes. */ + SET_OPTION_IF_UNSET (opts, &global_options_set, + param_destruct_interfere_size, + 256); + SET_OPTION_IF_UNSET (opts, &global_options_set, + param_construct_interfere_size, + 64); + } + if (aarch64_tune_params.prefetch->l2_cache_size >= 0) SET_OPTION_IF_UNSET (opts, &global_options_set, param_l2_cache_size, diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index f1e6282..6c6e77f 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -3669,6 +3669,28 @@ arm_option_override (void) SET_OPTION_IF_UNSET (&global_options, &global_options_set, param_l1_cache_line_size, current_tune->prefetch.l1_cache_line_size); + if (current_tune->prefetch.l1_cache_line_size >= 0) + { + SET_OPTION_IF_UNSET (&global_options, &global_options_set, + param_destruct_interfere_size, + current_tune->prefetch.l1_cache_line_size); + SET_OPTION_IF_UNSET (&global_options, &global_options_set, + param_construct_interfere_size, + current_tune->prefetch.l1_cache_line_size); + } + else + { + /* For a generic ARM target, JF Bastien proposed using 64 for both. */ + /* ??? Cortex A9 has a 32-byte cache line, so why not 32 for + constructive? */ + /* More recent Cortex chips have a 64-byte cache line, but are marked + ARM_PREFETCH_NOT_BENEFICIAL, so they get these defaults. */ + SET_OPTION_IF_UNSET (&global_options, &global_options_set, + param_destruct_interfere_size, 64); + SET_OPTION_IF_UNSET (&global_options, &global_options_set, + param_construct_interfere_size, 64); + } + if (current_tune->prefetch.l1_cache_size >= 0) SET_OPTION_IF_UNSET (&global_options, &global_options_set, param_l1_cache_size, diff --git a/gcc/config/i386/i386-options.c b/gcc/config/i386/i386-options.c index 2cb87ce..c0006b3 100644 --- a/gcc/config/i386/i386-options.c +++ b/gcc/config/i386/i386-options.c @@ -2579,6 +2579,12 @@ ix86_option_override_internal (bool main_args_p, SET_OPTION_IF_UNSET (opts, opts_set, param_l2_cache_size, ix86_tune_cost->l2_cache_size); + /* 64B is the accepted value for these for all x86. */ + SET_OPTION_IF_UNSET (&global_options, &global_options_set, + param_destruct_interfere_size, 64); + SET_OPTION_IF_UNSET (&global_options, &global_options_set, + param_construct_interfere_size, 64); + /* Enable sw prefetching at -O3 for CPUS that prefetching is helpful. */ if (opts->x_flag_prefetch_loop_arrays < 0 && HAVE_prefetch |