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Re: What's the policy for bug priorities, again
On Thu, Feb 18, 2010 at 11:14 AM, Piotr Wyderski
<piotr.wyderski@gmail.com> wrote:
> Richard Guenther wrote:
>
>> Note that all regressions from 4.4 that are visible with release
>> checking and valid input should be considered P1 first
>
> I don't know, what is considered to be a showstopper,
> but bad things happen inside 4.5 (x86-32/Cygwin + a
> lot of SSE). In the last weekend I was able to:
>
> a) ICE the compiler with a message "SSA validation failed"
> or something like that;
>
> b) in 32-bit mode generate an assembler error
> ~"%bpl is not a recognized register" when writing
> to a volatile global variable;
>
> c) to become 99.9% certain that the compiler generates
> wrong code in at least one case, i.e.:
>
> for(int i = k; i != 0;) {
>
> ?if (fn(params)) {
>
> ? ?continue;
> ?}
>
> ?gn();
> }
>
> gn() was not executed despite the fact fn() returned false.
>
> d) 20100208 is not able to compile trunk (from yesterday),
> because it gets stuck on, among other things, tree-ssa-structalias.o
>
> I am not going to formally report these issues, as the testcases
> are BIG, but IMHO there is no hurry to release 4.5, as it has
> great chances to become a disaster, despite the fact of its wonderful
> C++0x support.
If you don't report the issues nobody is going to notice them or
do something about them.
Richard.