diff options
Diffstat (limited to 'gcc/opts.c')
| -rw-r--r-- | gcc/opts.c | 44 |
1 files changed, 44 insertions, 0 deletions
@@ -1776,6 +1776,24 @@ const struct sanitizer_opts_s coverage_sanitizer_opts[] = { NULL, 0U, 0UL, false } }; +/* -fzero-call-used-regs= suboptions. */ +const struct zero_call_used_regs_opts_s zero_call_used_regs_opts[] = +{ +#define ZERO_CALL_USED_REGS_OPT(name, flags) \ + { #name, flags } + ZERO_CALL_USED_REGS_OPT (skip, zero_regs_flags::SKIP), + ZERO_CALL_USED_REGS_OPT (used-gpr-arg, zero_regs_flags::USED_GPR_ARG), + ZERO_CALL_USED_REGS_OPT (used-gpr, zero_regs_flags::USED_GPR), + ZERO_CALL_USED_REGS_OPT (used-arg, zero_regs_flags::USED_ARG), + ZERO_CALL_USED_REGS_OPT (used, zero_regs_flags::USED), + ZERO_CALL_USED_REGS_OPT (all-gpr-arg, zero_regs_flags::ALL_GPR_ARG), + ZERO_CALL_USED_REGS_OPT (all-gpr, zero_regs_flags::ALL_GPR), + ZERO_CALL_USED_REGS_OPT (all-arg, zero_regs_flags::ALL_ARG), + ZERO_CALL_USED_REGS_OPT (all, zero_regs_flags::ALL), +#undef ZERO_CALL_USED_REGS_OPT + {NULL, 0U} +}; + /* A struct for describing a run of chars within a string. */ class string_fragment @@ -1970,6 +1988,27 @@ parse_no_sanitize_attribute (char *value) return flags; } +/* Parse -fzero-call-used-regs suboptions from ARG, return the FLAGS. */ + +unsigned int +parse_zero_call_used_regs_options (const char *arg) +{ + unsigned int flags = 0; + + /* Check to see if the string matches a sub-option name. */ + for (unsigned int i = 0; zero_call_used_regs_opts[i].name != NULL; ++i) + if (strcmp (arg, zero_call_used_regs_opts[i].name) == 0) + { + flags = zero_call_used_regs_opts[i].flag; + break; + } + + if (!flags) + error ("unrecognized argument to %<-fzero-call-used-regs=%>: %qs", arg); + + return flags; +} + /* Parse -falign-NAME format for a FLAG value. Return individual parsed integer values into RESULT_VALUES array. If REPORT_ERROR is set, print error message at LOC location. */ @@ -2596,6 +2635,11 @@ common_handle_option (struct gcc_options *opts, /* Automatically sets -ftree-loop-vectorize and -ftree-slp-vectorize. Nothing more to do here. */ break; + case OPT_fzero_call_used_regs_: + opts->x_flag_zero_call_used_regs + = parse_zero_call_used_regs_options (arg); + break; + case OPT_fshow_column: dc->show_column = value; break; |