Hi, by some mistake we enable functions called once at -O0 and it actually happens from time to time.
Bootstrapped/regtested x86_64-linux, will commit it shortly. Honza * opts.c (default_options): Enlist OPT_finline_functions_called_once. * common.opt (flag_inline_functions_called_once):Do not initialize to 1. Index: opts.c =================================================================== --- opts.c (revision 174916) +++ opts.c (working copy) @@ -486,6 +486,7 @@ static const struct default_options defa /* Inlining of functions reducing size is a good idea with -Os regardless of them being declared inline. */ { OPT_LEVELS_3_PLUS_AND_SIZE, OPT_finline_functions, NULL, 1 }, + { OPT_LEVELS_1_PLUS, OPT_finline_functions_called_once, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_funswitch_loops, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_fgcse_after_reload, NULL, 1 }, { OPT_LEVELS_3_PLUS, OPT_ftree_vectorize, NULL, 1 }, Index: common.opt =================================================================== --- common.opt (revision 174916) +++ common.opt (working copy) @@ -1233,7 +1233,7 @@ Common Report Var(flag_inline_functions) Integrate simple functions into their callers finline-functions-called-once -Common Report Var(flag_inline_functions_called_once) Init(1) Optimization +Common Report Var(flag_inline_functions_called_once) Optimization Integrate functions called once into their callers finline-limit-