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.
