sean yang wrote:
The GCC internals explicitly introduced code manipulation APIs in TREE
representation (bsi_insert_before, bsi_remove etc). But I did not see
the equivalent for RTL representation.
There is emit_insn_after, emit_insn_before.
There is also the sequence stuff: start_sequence, end_sequence,
push_to_sequence, etc. This allows you to emit multiple insns into a
sequence, which can then be passed to emit_insn_{after,before}.
Try looking at the function definitions in emit-rtl.c, and various code
that uses them.
--
Jim Wilson, GNU Tools Support, http://www.specifix.com
