2012/8/13 Georg-Johann Lay <a...@gjlay.de>: > Denis Chertykov wrote: >> 2012/8/11 Georg-Johann Lay <a...@gjlay.de>: >>> Weddington, Eric schrieb: >>>>> From: Georg-Johann Lay >>>>> >>>>> >>>>> The first step would be to bisect and find the patch that lead to >>>>> PR53923. It was not a change in the avr BE, so the question goes >>>>> to the authors of the respective patch. >>>>> >>>>> Up to now I didn't even try to bisect; that would take years on the >>>>> host that I have available... >>>>> >>>>>> My only real concern is that this is a major feature addition and >>>>>> the AVR port is currently broken. >>>>> >>>>> I don't know if it's the avr port or some parts of the middle end that >>>>> don't cooperate with avr. >>>> >>>> I would really, really love to see fixed point support added in, >>>> especially since I know that Sean has worked on it for quite a while, >>>> and you've also done a lot of work in getting the patches in shape to >>>> get them committed. >>>> >>>> But, if the AVR port is currently broken (by whomever, and whatever >>>> patch) and a major feature like this can't be tested to make sure it >>>> doesn't break anything else in the AVR backend, then I'm hesitant to >>>> approve (even though I really want to approve). >>> >>> I don't understand enough of DF to fix PR53923. The insn that leads >>> to the ICE is (in df-problems.c:dead_debug_insert_temp): >>> >> >> Today I have updated GCC svn tree and successfully compiled avr-gcc. >> The libgcc2-mulsc3.c from also compiled without bugs. >> >> Denis. >> >> PS: May be I'm doing something wrong ? (I had too long vacations) > > I am configuring with --target=avr --disable-nls --with-dwarf2 > --enable-languages=c,c++ --enable-target-optspace=yes > --enable-checking=yes,rtl > > Build GCC is "gcc version 4.3.2". > Build and host are i686-pc-linux-gnu. > > Maybe it's different on a 64-bit computer, but I only have 32-bit host. >
I have debugging PR53923 and on my opinion it's not an AVR port bug. Please commit fixed point support. Denis. PS: sorry for delay
