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[lld-macho] Document '-icf' flag options #123372

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Jan 17, 2025
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[lld-macho] Document '-icf' flag options #123372

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8 changes: 6 additions & 2 deletions lld/MachO/Options.td
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Original file line number Diff line number Diff line change
Expand Up @@ -82,8 +82,12 @@ def print_dylib_search: Flag<["--"], "print-dylib-search">,
HelpText<"Print which paths lld searched when trying to find dylibs">,
Group<grp_lld>;
def icf_eq: Joined<["--"], "icf=">,
HelpText<"Set level for identical code folding (default: none)">,
MetaVarName<"[none,safe,all]">,
HelpText<"Set level for identical code folding (default: none). Possible values:\n"
" none - Disable ICF\n"
" safe - Only folds non-address significant functions (as described by `__addrsig` section)\n"
" safe_thunks - Like safe, but replaces address-significant functions with thunks\n"
" all - Fold all identical functions">,
MetaVarName<"[none,safe,safe_thunks,all]">,
Group<grp_lld>;
def keep_icf_stabs: Joined<["--"], "keep-icf-stabs">,
HelpText<"Generate STABS entries for symbols folded by ICF. These entries can then be used by dsymutil to discover the address range where folded symbols are located.">,
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