[Bug tree-optimization/21982] GCC should combine adjacent stdio calls

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2005-06-09 17:07 -------
(In reply to comment #12)
> Pushing the first printf further down, this could be reordered as:
>   int i=0, j=2;
>   j++;
>   printf("%d", i);
>   printf("%d", j);

In fact this is how SSA works, in that there a variable is only ever assigned once so j_1 and j_2 can be 
alive at the same time (well except for variables across abnormal edges).

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21982