Segmentation fault when compiling GCC with new RTL pass

[Georg-Johann Lay]

Tomasz Jankowski schrieb:
> Hello,
> 
> I'm implementing new RTL pass in GCC. I attached current C source with
> my RTL pass. I have to use GCC v4.5.1 port for OpenRISC project.
> 
> Basically I want to discover all "SET" insns which moves constant
> immediate to register. Then I want to insert additional instruction
> call right after this move instruction (for now I just want to insert
> a copy of found "SET" insn). When I compile this pass with commented
> "add_insn_after(...)" (line 70 in attachment) GCC compiles fine and
> after installation it discovers SET insn properly. When I uncomment
> this "add_insn_after(...)" compilation fails with message:
> 
> (...)
> 
> I run my pass just after "expand" pass. This is first time I'm trying
> to modify GCC. What am I doing wrong?
> 
> add_insn_after (copy_rtx (set), set, block);

Are you adding a pattern/singe_set to the insn stream?
You need an insn.