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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
int a, b, c, d;
extern int printf (const char *, ...);
int main(void)
{
int e;
int f;
/* We should be able to transform these into the same expression, and only have two additions. */
e = a + b;
e = e + c;
f = c + a;
f = f + b;
printf ("%d %d\n", e, f);
}
/* We cannot reassociate these expressions because of undefined signed
integer overflow. Instead the value-numberer has to be extended
to canonicalize these expressions. */
/* { dg-final { scan-tree-dump-times "b.._. \\\+ a.._." 1 "optimized" { xfail *-*-* } } } */
/* { dg-final { scan-tree-dump-times " \\\+ " 2 "optimized" { xfail *-*-* } } } */
/* { dg-final { cleanup-tree-dump "optimized" } } */
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