Questions on tree-inline.c

[Andrew Haley]

Richard Kenner writes:
 >     This was discussed at length.  The problem with putting all this in
 >     the java/ directory is that a great deal of logic would have been
 >     duplicated and we would require two files to be updated each time a
 >     change to the inliner was made.
 > 
 > But I thought that's what the language hooks are for?  If not, then what
 > *are* they for?

gcc has its set of tree nodes in tree.def.  Java uses these nodes and
a few of its own.  C and C++. however, do not use these but define a
whole bunch of their own.  When the tree inliner was added, it used
the C- and C++-specific tree nodes.

 > And why do we have two tree nodes that are essentially the same
 > except for the name (like GOTO_EXPR and GOTO_STMT, RETURN_EXPR and
 > RETURN_STMT, etc)?

History.

Andrew.