#4054 Сode generation error / optimization error when passing an expression with type conversion to a function.

[Vladimir Setyaev]

sdcc version: 4.6.2 #16747 (Linux)
run: sdcc -mstm8 main.c

[Philipp Klaus Krause]

I can reproduce the issue on my Debian GNU/Linux testing on amd64 system, I see it for all ports I tried (pdk14, pdk15, stm8, z80, f8.

Looks like in iCode, we dereference one time too much for passing a to the first call to check_cast.

[Li-Hsin Chien]

Thanks, this was very helpful.

I traced the extra dereference to geniCodeSEParms().
I submitted [patches:#516]. The patch keeps the source address while preparing the struct argument, so the struct is dereferenced only once when passed to the function.