Hi, All!
Here is a little chunk of code.
/* --------------- */
void some_func(void * gptr) {
*((char *)gptr++) = 'A';
}
/* --------------- */
[EMAIL PROTECTED] sdcc-ptr++]$ uname -o
GNU/Linux
[EMAIL PROTECTED] sdcc-ptr++]$ sdcc -mmcs51 -c --std-sdcc99 sdcc-ptr++-test.c
sdcc-ptr++-test.c:2: warning 178: size of void is zero
[EMAIL PROTECTED] sdcc-ptr++]$ c99 -c sdcc-ptr++-test.c
[EMAIL PROTECTED] sdcc-ptr++]$
It's looks like a bug, because gcc compiles it well. Code is not generated
for increment:
;------------------------------------------------------------
;Allocation info for local variables in function 'some_proc'
;------------------------------------------------------------
;gptr Allocated to registers r2 r3 r4
;------------------------------------------------------------
;sdcc-ptr++-test.c:1: void some_proc(void * gptr) {
; -----------------------------------------
; function some_proc
; -----------------------------------------
_some_proc:
ar2 = 0x02
ar3 = 0x03
ar4 = 0x04
ar5 = 0x05
ar6 = 0x06
ar7 = 0x07
ar0 = 0x00
ar1 = 0x01
; genReceive
;sdcc-ptr++-test.c:2: *((char *)gptr++) = 'A';
; genPointerSet
; genGenPointerSet
mov r2,dpl
mov r3,dph
mov r4,b
; Peephole 238.d removed 3 redundant moves
mov a,#0x41
; Peephole 253.b replaced lcall/ret with ljmp
ljmp __gptrput
.area CSEG (CODE)
.area XINIT (CODE)
Thank you!
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