[Bug tree-optimization/21173] [4.0/4.1 regression] miscompiled pointer subtraction broke Linux kernel

[dberlin at dberlin dot org]

------- Additional Comments From dberlin at gcc dot gnu dot org  2005-04-23 15:13 -------
Subject: Re:  [4.0/4.1 regression] miscompiled
	pointer subtraction broke Linux kernel

> yes
> 
> In fact, the error actually makes no sense (IE you guys are overlooking
> an important fact).
> 
> is_gimple_min_invariants are legal operands to unary expressions,
> regardless of whether they are "complex" or not, or so i was told.
> 
> So if genop1 is is_gimple_min_invariant, it should be fine there, and
> you shouldn't need to use folded.
> 

Forget it, genop1 doens't include the operation, and folded does. 
I forgot about that




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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21173