[Sdcc-user] strange code from V2.3

[Gernot.Fink <Ger...@ne...>]

This testprogramm generates correct code if the constant for testing is smaller
as 127. If  not then a Integer compare is generated instead a char.

Version:
SDCC : mcs51/gbz80/z80/avr/ds390/pic14/i186/tlcs900h 2.3.0 (Oct  2 2001) (UNIX)
-----------------
#include <8051.h>

volatile unsigned char t1,t2;

main()
{
    t2=P1;

    t1=(t2==127)?1:2;

    P2=t1;
}   
-----------------------

generates 

                            211 ;   test.c 11
   003B AA 31               212     mov r2,_t2
   003D 7B 00               213     mov r3,#0x00
                            214 ; Peephole 132   changed ljmp to sjmp
                            215 ; Peephole 198   optimized misc jump sequence
   003F BA 7F 07            216     cjne r2,#0x7F,00103$
   0042 BB 00 04            217     cjne r3,#0x00,00103$
                            218 ;00106$:
                            219 ; Peephole 200   removed redundant sjmp
   0045                     220 00107$:
   0045 7A 01               221     mov r2,#0x01
                            222 ; Peephole 132   changed ljmp to sjmp
   0047 80 02               223     sjmp 00104$
   0049                     224 00103$:
   0049 7A 02               225     mov r2,#0x02
   004B                     226 00104$:
   004B 8A 30               227     mov _t1,r2
                            228 ;   test.c 14
   004D 85 30 A0            229     mov _P2,_t1     



--
MFG Gernot