According to c.opt, the -fdefault-inline patch is ignored, and only exists for backward compatibility. The only use of flag_default_inline was removed by Honza here: http://gcc.gnu.org/ml/gcc-patches/2008-07/msg02104.html
This patch removes the docs for -fdefault-inline. Bootstrapped on x86_64-unknown-linux-gnu. OK for mainline? Ian 2013-10-21 Ian Lance Taylor <i...@google.com> * doc/invoke.texi (Option Summary): Remove -fno-default-inline. (C++ Dialect Options): Likewise. (Optimize Options): Likewise.
Index: doc/invoke.texi =================================================================== --- doc/invoke.texi (revision 203894) +++ doc/invoke.texi (working copy) @@ -190,7 +190,7 @@ in the following sections. -frepo -fno-rtti -fstats -ftemplate-backtrace-limit=@var{n} @gol -ftemplate-depth=@var{n} @gol -fno-threadsafe-statics -fuse-cxa-atexit -fno-weak -nostdinc++ @gol --fno-default-inline -fvisibility-inlines-hidden @gol +-fvisibility-inlines-hidden @gol -fvtable-verify=@var{std|preinit|none} @gol -fvtv-counts -fvtv-debug @gol -fvisibility-ms-compat @gol @@ -385,7 +385,6 @@ Objective-C and Objective-C++ Dialects}. -flto-partition=@var{alg} -flto-report -flto-report-wpa -fmerge-all-constants @gol -fmerge-constants -fmodulo-sched -fmodulo-sched-allow-regmoves @gol -fmove-loop-invariants fmudflap -fmudflapir -fmudflapth -fno-branch-count-reg @gol --fno-default-inline @gol -fno-defer-pop -fno-function-cse -fno-guess-branch-probability @gol -fno-inline -fno-math-errno -fno-peephole -fno-peephole2 @gol -fno-sched-interblock -fno-sched-spec -fno-signed-zeros @gol @@ -2403,13 +2402,6 @@ In addition, these optimization, warning have meanings only for C++ programs: @table @gcctabopt -@item -fno-default-inline -@opindex fno-default-inline -Do not assume @samp{inline} for functions defined inside a class scope. -@xref{Optimize Options,,Options That Control Optimization}. Note that these -functions have linkage like inline functions; they just aren't -inlined by default. - @item -Wabi @r{(C, Objective-C, C++ and Objective-C++ only)} @opindex Wabi @opindex Wno-abi @@ -6822,14 +6814,6 @@ can use the following flags in the rare optimizations to be performed is desired. @table @gcctabopt -@item -fno-default-inline -@opindex fno-default-inline -Do not make member functions inline by default merely because they are -defined inside the class scope (C++ only). Otherwise, when you specify -@w{@option{-O}}, member functions defined inside class scope are compiled -inline by default; i.e., you don't need to add @samp{inline} in front of -the member function name. - @item -fno-defer-pop @opindex fno-defer-pop Always pop the arguments to each function call as soon as that function