https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106818
--- Comment #5 from baoshan <pangbw at gmail dot com> ---
Per Andrew's request:
For GCC built for RISC-V,
With the following code:
struct sss_t {
int i;
int j;
} sss;
extern char array[sizeof(struct sss_t )];
void foo()
{
struct sss_t *p = (struct sss_t *)array;
p->i = 10;
}
The following asm is generated:
foo():
lui a5,%hi(array)
li a4,10
sb a4,%lo(array)(a5)
sb zero,%lo(array+1)(a5)
sb zero,%lo(array+2)(a5)
sb zero,%lo(array+3)(a5)
ret
sss:
.zero 8
While if remove the 'extern' from the C code, the following asm is generated:
foo():
lui a5,%hi(array)
li a4,10
sw a4,%lo(array)(a5)
ret
array:
.zero 8
sss:
.zero 8
