On Mon, Jun 13, 2016 at 7:24 PM, Albert Graef <aggr...@gmail.com> wrote:
> On Mon, Jun 13, 2016 at 5:15 PM, Kjetil Matheussen <
> k.s.matheus...@gmail.com> wrote:
>
>> I get a crash when compiling this program:
>>
>> "
>> process = *(v), *(v) with { v = hslider("volume[style:knob]", 0.5, 0, 5,
>> 0.05);};
>> process = *(v), *(v) with { v = hslider("volume[style:knob]", 0.5, 0, 5,
>> 0.05);};
>> "
>>
>
> I'm getting an error rather than a crash, but the empty parameter list in
> the error message looks funny:
>
> ERROR : pattern matching failed, no rule of case {) => *(v),*(v) with {
> {v=hslider("volume[style:knob]", 0.5f, 0, 5, 0.05f)} }; ) => *(v),*(v) with
> { {v=hslider("volume[style:knob]", 0.5f, 0, 5, 0.05f)} }; } matches
> argument list (x1)
>
> In any case this looks like a compiler bug to me.
>
Yes, it's definitely a bug. I don't know which part of the program is to
blame,
but the address sanitizer aborts the program because some code in
the pattern matcher tries to reads from memory that is not allocated,
more specifically 16 bytes to the left of an 80 byte memory block
allocated at compiler/global.cpp:464.
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