gcc/
* doc/invoke.texi (Optimize Options): Add cross-reference to
-Q --help=optimizers examples.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@145864
138bc75d-0d04-0410-961f-
82ee72b054a4
+2009-04-09 Sandra Loosemore <sandra@codesourcery.com>
+
+ * doc/invoke.texi (Optimize Options): Add cross-reference to
+ -Q --help=optimizers examples.
+
2009-04-10 Ben Elliston <bje@au.ibm.com>
PR target/36800
each of them.
Not all optimizations are controlled directly by a flag. Only
-optimizations that have a flag are listed.
+optimizations that have a flag are listed in this section.
+
+Depending on the target and how GCC was configured, a slightly different
+set of optimizations may be enabled at each @option{-O} level than
+those listed here. You can invoke GCC with @samp{-Q --help=optimizers}
+to find out the exact set of optimizations that are enabled at each level.
+@xref{Overall Options}, for examples.
@table @gcctabopt
@item -O