I get the following error:
$ cproc extern/libduktape/duktape.c -:56626: ssa temporary %.8 is used undefined in @do_body.17130 cproc: codegen: process 10477 exited with status 1 cproc: preprocess: process signaled: Terminated cproc: assemble: process signaled: Terminated cproc: compile: process signaled: Terminated
both qbe and cproc are up to date (cloned the same day as this mail).
FWIW, the duktape.c file is 66167 LOCs.
This is usually caused when the input program has a code path that uses a variable before it has been assigned in the C code. Unfortunately currently cproc cannot see this code path and qbe chokes on it which is why the error message is not so pleasant
Usually the fix is to work out which function in the input is using an undefined variable and fixing it upstream.