[Bug tree-optimization/32698] [4.3 regression] inefficient pointer expression

[rguenth at gcc dot gnu dot org]

------- Comment #20 from rguenth at gcc dot gnu dot org  2007-07-20 17:22 -------
Whoops ;)  I missed that.

I have a counter-example that is better with the patch in the same way yours
is worse with it.

void f(unsigned int *p, unsigned int a)
{
  p[0] = a * 4 + 4;
  p[1] = a * 8 + 8;
  p[2] = a * 12 + 12;
}

As I said, the fold canonicalization is just canonicalization, the code
generation has to be fixed elsewhere.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32698