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/* PR tree-optimization/20913
COPY-PROP did not fold COND_EXPR, blocking some copy propagation
opportunities. */
/* { dg-do link } */
/* { dg-options "-O2 -fno-tree-dominator-opts" } */
int
foo (int a, int b, int c, int d)
{
int x, y;
b = a;
if (a == b)
x = c;
else
{
link_error ();
x = d;
}
if (x == c)
return a;
else
{
link_error ();
return b;
}
}
main()
{
foo (1, 2, 3, 4);
}
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