Message ID | 1280522440-27919-3-git-send-email-sebpop@gmail.com |
---|---|
State | New |
Headers | show |
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 2d61382..ca3238c 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -6944,6 +6944,7 @@ DO I = 1, N ENDDO @end smallexample and the initialization loop is transformed into a call to memset zero. +This flag is enabled by default at @option{-O3}. @item -ftree-loop-im @opindex ftree-loop-im diff --git a/gcc/opts.c b/gcc/opts.c index 07d7a23..16a337c 100644 --- a/gcc/opts.c +++ b/gcc/opts.c @@ -862,6 +862,7 @@ decode_options (unsigned int argc, const char **argv, /* -O3 optimizations. */ opt3 = (optimize >= 3); + flag_tree_loop_distribute_memset_zero = opt3; flag_predictive_commoning = opt3; flag_inline_functions = opt3; flag_unswitch_loops = opt3;