Viewing file:  sra-13.c (1.42 KB) -rw-r--r--
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/* Test that SRA replacement can deal with assignments that have
sub-replacements on one side and a single scalar replacement on another. */
/* { dg-do run } */
/* { dg-options "-O1" } */
struct A
{
int i1, i2;
};
struct B
{
long long int l;
};
union U
{
struct A a;
struct B b;
};
int b, gi;
long gl;
union U gu1, gu2;
int __attribute__ ((noinline, noclone))
foo (void)
{
union U x, y;
int r;
y = gu1;
if (b)
y.b.l = gl;
x = y;
if (!b)
r = x.a.i1;
else
r = 0;
gu2 = x;
return r;
}
long long int __attribute__ ((noinline, noclone))
bar (void)
{
union U x, y;
int r;
y = gu1;
if (b)
y.a.i1 = gi;
x = y;
if (!b)
r = x.b.l;
else
r = 0;
gu2 = x;
return r;
}
int
main (void)
{
int r;
long long int s;
b = 0;
gu1.a.i1 = 123;
gu1.a.i2 = 234;
r = foo ();
if (r != 123)
__builtin_abort ();
if (gu2.a.i1 != 123)
__builtin_abort ();
if (gu2.a.i2 != 234)
__builtin_abort ();
b = 1;
gl = 10000001;
gu1.b.l = 10000000;
r = foo ();
if (r != 0)
__builtin_abort ();
if (gu2.b.l != 10000001)
__builtin_abort ();
b = 0;
gu1.b.l = 20000000;
s = bar ();
if (s != (int)20000000)
__builtin_abort ();
if (gu2.b.l != 20000000)
__builtin_abort ();
b = 1;
gi = 456;
gu1.a.i1 = 123;
gu1.a.i2 = 234;
s = bar ();
if (s != 0)
__builtin_abort ();
if (gu2.a.i1 != 456)
__builtin_abort ();
return 0;
}
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