[fpc-devel] Compiling trunk on OS X

[Jonas Maebe]

On 01 Feb 2014, at 23:25, Florian Klämpfl wrote:

> Am 01.02.2014 23:15, schrieb Ewald:
>> 
>> On 01 Feb 2014, at 23:11, Jonas Maebe wrote:
>> 
>>> The code changed in that revision only gets activated when
>>> targeting win64, as far as I can tell.
>> 
>> That might be the case. My honesty obliges me to admit that my
>> knowledge of the compiler is zip. Perhaps the two minor changes the
>> log message talks about can shed some light on this new development?
>> 
>> Anyway, if I can provide anything else, just ask.
> 
> Just to be sure: your working copy is clean?

I can reproduce it. The problem does not happen when starting the make all with an x86-64 compiler, nor when disabling optimizations. So it seems like it's a bug in the i386 code generator or optimizer that causes a bug in the x86-64 cross-compiler, which in turn causes the generated native x86-64 compiler to be buggy. I guess the change in r26222 somehow manages to trigger that bug... These are some of the worst kind of things to debug :/


Jonas