diff options
Diffstat (limited to 'gcc/config/s390/s390.c')
| -rw-r--r-- | gcc/config/s390/s390.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 985d564618a..290ae693763 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -1490,23 +1490,20 @@ s390_init_machine_status (void) } /* Change optimizations to be performed, depending on the - optimization level. + optimization level. */ - LEVEL is the optimization level specified; 2 if `-O2' is - specified, 1 if `-O' is specified, and 0 if neither is specified. +static const struct default_options s390_option_optimization_table[] = + { + { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 }, - SIZE is nonzero if `-Os' is specified and zero otherwise. */ + /* ??? There are apparently still problems with -fcaller-saves. */ + { OPT_LEVELS_ALL, OPT_fcaller_saves, NULL, 0 }, -static void -s390_option_optimization (int level ATTRIBUTE_UNUSED, int size) -{ - /* ??? There are apparently still problems with -fcaller-saves. */ - flag_caller_saves = 0; + /* Use MVCLE instructions to decrease code size if requested. */ + { OPT_LEVELS_SIZE, OPT_mmvcle, NULL, 1 }, - /* Use MVCLE instructions to decrease code size if requested. */ - if (size != 0) - target_flags |= MASK_MVCLE; -} + { OPT_LEVELS_NONE, 0, NULL, 0 } + }; /* Implement TARGET_OPTION_INIT_STRUCT. */ @@ -1730,7 +1727,7 @@ s390_option_override (void) global_options.x_param_values, global_options_set.x_param_values); - /* This cannot reside in s390_option_optimization since HAVE_prefetch + /* This cannot reside in s390_option_optimization_table since HAVE_prefetch requires the arch flags to be evaluated already. Since prefetching is beneficial on s390, we enable it if available. */ if (flag_prefetch_loop_arrays < 0 && HAVE_prefetch && optimize >= 3) @@ -10510,8 +10507,8 @@ s390_loop_unroll_adjust (unsigned nunroll, struct loop *loop) #undef TARGET_OPTION_OVERRIDE #define TARGET_OPTION_OVERRIDE s390_option_override -#undef TARGET_OPTION_OPTIMIZATION -#define TARGET_OPTION_OPTIMIZATION s390_option_optimization +#undef TARGET_OPTION_OPTIMIZATION_TABLE +#define TARGET_OPTION_OPTIMIZATION_TABLE s390_option_optimization_table #undef TARGET_OPTION_INIT_STRUCT #define TARGET_OPTION_INIT_STRUCT s390_option_init_struct |