[tree-ssa] Computed gotos

[law@redhat.com]

In message <20030616193024.GA4045@redhat.com>, Richard Henderson writes:
 >On Mon, Jun 16, 2003 at 09:00:29AM -0600, law@redhat.com wrote:
 >>  >Apparently you set FORCED_LABEL.
 >>
 >> Or more correctly, it should be set during the gimplification process.
 >> If the gimplifier isn't automatically setting FORCED_LABEL for the
 >> labels in question, then we'd likely consider that a bug.
 >
 >Maybe.  Thing is, in rtl-land, the forced_label list is those
 >labels whose address is taken in an initializer for static storage.
 >
 >Labels whose address is taken in code are put on a separate list.
 >This is important because the code that takes the address can be
 >deleted, at which point it isn't a forced label anymore.
 >
 >Seems like we should do something similar in gimple-land.
Yes.  At some point we'll probably make the distinction between those
which appear in static storage and those which appear as operands to
real code for tree-ssa.  But it's not that high on the list of 
priorities yet.
jeff