As I continue my work on the machine description file, I currently
worked on the bitfields again to try to get a good code generation
working. Right now, I've followed what was done in the ia64 for signed
extractions :
(define_insn extv
[(set (match_operand:DI 0 gr_register_operand =r)
Interestingly enough, if I do this instead:
typedef struct sTest {
int a:12;
int b:20;
int c:7;
int d:15;
}STest;
int64_t bar2 (STest *a)
{
int64_t res = a-b;
return res;
}
I get at the expand pass :
(insn 6 5 7 3 struct3.c:27 (set (reg:SI 75)
(mem/s:SI
