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Re: optimization/7799: [3.2/3.3 regression] Loop bug with optimization flag -Os in gcc
- From: dewar at gnat dot com (Robert Dewar)
- To: amylaar at onetel dot net dot uk, segher at koffie dot nl
- Cc: ehrhardt at mathematik dot uni-ulm dot de, gcc-bugs at gcc dot gnu dot org,gcc-gnats at gcc dot gnu dot org, gcc at gcc dot gnu dot org, nejataydin at superonline dot com
- Date: Fri, 20 Dec 2002 19:25:45 -0500 (EST)
- Subject: Re: optimization/7799: [3.2/3.3 regression] Loop bug with optimization flag -Os in gcc
> It can't wrap around there, but if pointers are signed, it might straddle 0
> nonetheless. This requires, of course, for an aligned start address
> that the address 0 is not the same as NULL, which AFAICR is something gcc
> doesn't currently support.
Note that addresses *are* considered signed on the INMOS Transputer as a
proof of existence :-)