#3678 error 9: FATAL Compiler Internal Error when using two sfrs

[Przemek Sulikowski]

I'm getting

op8_cost op: 4
src/main.c:6: error 9: FATAL Compiler Internal Error in file 'gen.c' line number '996' : code generator internal error
Contact Author with source code
op8_cost op: 4

with code like

__sfr changeBase;
__sfr LCDC_REG;

void main(void)
{
    LCDC_REG ^= changeBase;
}

sdcc version

SDCC : z80/sm83/mos6502 TD- 4.3.2 #14228 (MINGW64)

compiled with

sdcc -msm83 --no-std-crt0 --fsigned-char --use-stdout -D__PORT_sm83 -D__TARGET_gb -Wa-pogn -MMD --debug -Iobj/gb -Iinclude -c src/main.c -o obj/gb/main.o

[bbbbbr]

Subscribing to the ticket

Also, for reference:
_LCDC_REG = 0xFF4E ; LCD control
.globl _LCDC_REG

[Philipp Klaus Krause]

Fixed in [r14448]. The bug affected all bit-wise operations for z80 and sm83, and I also found and fixed a similar issue affecting one bitwise operation for pdk.