"Balaji V. Iyer" <bvi...@ncsu.edu> writes: > Thanks for your help. What I mainly want to do is to make some > hardware decisions by looking at the instructions inside a Basic block. > Ths is why I was using the "FOR_EACH_BB" function. > > When and where can I intercept the RTL such that I can get the > RTL that matches the output assembly equivalents? I am willing to add my > own hook if necessary.
If you want to look at RTL which precisely matches the output assembly, then you should use FINAL_PRESCAN_INSN. You won't get basic block markers, though. If you want to look at RTL which is pretty close to the output assembly, and for which the basic blocks are reasonably valid, then you should write a pass which runs somewhere after the second scheduling pass. Ian
