gcc/gcc/testsuite/gcc.dg/pr48335-1.c

49 lines
648 B
C

/* PR middle-end/48335 */
/* { dg-do compile } */
/* { dg-options "-O2 -fno-tree-sra" } */
typedef long long T __attribute__((may_alias));
struct S
{
_Complex float d __attribute__((aligned (8)));
};
void bar (struct S);
void
f1 (T x)
{
struct S s;
*(T *) &s.d = x;
__real__ s.d *= 7.0;
bar (s);
}
void
f2 (int x)
{
struct S s = { .d = 0.0f };
*(char *) &s.d = x;
__real__ s.d *= 7.0;
bar (s);
}
void
f3 (int x)
{
struct S s = { .d = 0.0f };
((char *) &s.d)[2] = x;
__real__ s.d *= 7.0;
bar (s);
}
void
f4 (int x, int y)
{
struct S s = { .d = 0.0f };
((char *) &s.d)[y] = x;
__real__ s.d *= 7.0;
bar (s);
}