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/* { dg-do compile } */
/* { dg-options "-O -fno-tree-sra -fdump-tree-fre-details -fdump-tree-optimized" } */
#if (__SIZEOF_INT__ == __SIZEOF_FLOAT__)
typedef int intflt;
#elif (__SIZEOF_LONG__ == __SIZEOF_FLOAT__)
typedef long intflt;
#else
#error Add target support here for type that will union float size
#endif
struct X {
int i;
union {
intflt j;
intflt k;
float f;
} u;
};
intflt foo(intflt j)
{
struct X a;
a.u.j = j;
a.u.f = a.u.f;
a.u.f = a.u.f;
a.u.j = a.u.j;
a.u.f = a.u.f;
return a.u.k;
}
/* { dg-final { scan-tree-dump-times "Inserted pretmp" 1 "fre" } } */
/* { dg-final { scan-tree-dump-times "Replaced a.u.f with pretmp" 3 "fre" } } */
/* { dg-final { scan-tree-dump-times "Replaced a.u.k with j" 1 "fre" } } */
/* { dg-final { scan-tree-dump "= VIEW_CONVERT_EXPR<float>\\\(j_" "fre" } } */
/* { dg-final { scan-tree-dump "return j" "optimized" } } */
/* { dg-final { cleanup-tree-dump "fre" } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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