[Bug middle-end/32758] [4.3 Regression] ecj1 hangs

[bonzini at gnu dot org]

------- Comment #28 from bonzini at gnu dot org  2007-08-29 14:14 -------
> Apparently dce is the only user of df_simulate_* which at the start of the
> basic block compares the resulting bitmap with DF_LR_IN. 

Yes.  The other two don't get infinite loops from their doing the wrong thing;
they just think some register is live and may miss some optimization.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32758