https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61588
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-11-05
CC| |msebor at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
Confirmed with the latest trunk.
The -Os documentation states:
-Os disables the following optimization flags:
-falign-functions -falign-jumps -falign-loops
-falign-labels -freorder-blocks -freorder-blocks-algorithm=stc
-freorder-blocks-and-partition -fprefetch-loop-arrays
Invoking "gcc -Os -Q --help=optimizers" to "to find out the exact set of
optimizations that are enabled at [the given optimization] level" indicates
that all the options are enabled:
$ /build/gcc-trunk-svn/gcc/xgcc -B /build/gcc-trunk-svn/gcc -Os -o/dev/null -Q
--help=optimizers | grep -E
"[-]f(align-functions|align-jumps|align-loops|align-labels|reorder-blocks|reorder-blocks-algorithm|reorder-blocks-and-partition|prefetch-loop-arrays)"
-falign-functions [enabled]
-falign-jumps [enabled]
-falign-labels [enabled]
-falign-loops [enabled]
-fprefetch-loop-arrays [enabled]
-freorder-blocks [enabled]
-freorder-blocks-algorithm= simple
-freorder-blocks-and-partition [enabled]
