diff options
Diffstat (limited to 'gcc/config/aarch64/aarch64.c')
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 51 |
1 files changed, 45 insertions, 6 deletions
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index cb0892e8b54..a2d880de9ac 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -11181,6 +11181,10 @@ aarch64_asm_preferred_eh_data_format (int code ATTRIBUTE_UNUSED, int global) return (global ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | type; } +/* The last .arch and .tune assembly strings that we printed. */ +static std::string aarch64_last_printed_arch_string; +static std::string aarch64_last_printed_tune_string; + /* Implement ASM_DECLARE_FUNCTION_NAME. Output the ISA features used by the function fndecl. */ @@ -11203,23 +11207,55 @@ aarch64_declare_function_name (FILE *stream, const char* name, unsigned long isa_flags = targ_options->x_aarch64_isa_flags; std::string extension = aarch64_get_extension_string_for_isa_flags (isa_flags); - asm_fprintf (asm_out_file, "\t.arch %s%s\n", - this_arch->name, extension.c_str ()); + /* Only update the assembler .arch string if it is distinct from the last + such string we printed. */ + std::string to_print = this_arch->name + extension; + if (to_print != aarch64_last_printed_arch_string) + { + asm_fprintf (asm_out_file, "\t.arch %s\n", to_print.c_str ()); + aarch64_last_printed_arch_string = to_print; + } /* Print the cpu name we're tuning for in the comments, might be - useful to readers of the generated asm. */ - + useful to readers of the generated asm. Do it only when it changes + from function to function and verbose assembly is requested. */ const struct processor *this_tune = aarch64_get_tune_cpu (targ_options->x_explicit_tune_core); - asm_fprintf (asm_out_file, "\t" ASM_COMMENT_START ".tune %s\n", - this_tune->name); + if (flag_debug_asm && aarch64_last_printed_tune_string != this_tune->name) + { + asm_fprintf (asm_out_file, "\t" ASM_COMMENT_START ".tune %s\n", + this_tune->name); + aarch64_last_printed_tune_string = this_tune->name; + } /* Don't forget the type directive for ELF. */ ASM_OUTPUT_TYPE_DIRECTIVE (stream, name, "function"); ASM_OUTPUT_LABEL (stream, name); } +/* Implements TARGET_ASM_FILE_START. Output the assembly header. */ + +static void +aarch64_start_file (void) +{ + struct cl_target_option *default_options + = TREE_TARGET_OPTION (target_option_default_node); + + const struct processor *default_arch + = aarch64_get_arch (default_options->x_explicit_arch); + unsigned long default_isa_flags = default_options->x_aarch64_isa_flags; + std::string extension + = aarch64_get_extension_string_for_isa_flags (default_isa_flags); + + aarch64_last_printed_arch_string = default_arch->name + extension; + aarch64_last_printed_tune_string = ""; + asm_fprintf (asm_out_file, "\t.arch %s\n", + aarch64_last_printed_arch_string.c_str ()); + + default_file_start (); +} + /* Emit load exclusive. */ static void @@ -13957,6 +13993,9 @@ aarch64_optab_supported_p (int op, machine_mode, machine_mode, #define TARGET_ASM_CAN_OUTPUT_MI_THUNK \ hook_bool_const_tree_hwi_hwi_const_tree_true +#undef TARGET_ASM_FILE_START +#define TARGET_ASM_FILE_START aarch64_start_file + #undef TARGET_ASM_OUTPUT_MI_THUNK #define TARGET_ASM_OUTPUT_MI_THUNK aarch64_output_mi_thunk |