diff options
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index fb50636..e7526c5 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -12939,6 +12939,20 @@ also at @option{-O0} if @option{-fsection-anchors} is explicitly requested. Additionally @option{-fno-toplevel-reorder} implies @option{-fno-section-anchors}. +@item -funreachable-traps +@opindex funreachable-traps +With this option, the compiler turns calls to +@code{__builtin_unreachable} into traps, instead of using them for +optimization. This also affects any such calls implicitly generated +by the compiler. + +This option has the same effect as @option{-fsanitize=unreachable +-fsanitize-trap=unreachable}, but does not affect the values of those +options. If @option{-fsanitize=unreachable} is enabled, that option +takes priority over this one. + +This option is enabled by default at @option{-O0} and @option{-Og}. + @item -fweb @opindex fweb Constructs webs as commonly used for register allocation purposes and assign |