Kai Ruottu wrote:
Your "optimization level" in compiling libstdc++-v3 was just the same
'-Os' I had here, so it must
come from somewhere and be 'fr30' dependent. Maybe changing it to
'-O2' or to '-O' could help, I
will check that... Anyway the '-Os' seems to cause a crash in
libstdc++-v3 with 'fr30-elf' !
Been there, seen that... Only switching to '-O0' enabled the compile
to succeed! So I produced
this single module with -O0 and switching back to '-Os' with the next in
turn helped only a while,
then it crashed again with:
/data1/home/src/gcc-4.1.1/build/fr30-elf/libstdc++-v3/include/bits/locale_facets.h:
In member function '_InIter std::money_get<_CharT,
_InIter>::get(_InIter, _InIter, bool, std::ios_base&,
std::_Ios_Iostate&, long double&) const [with _CharT = char, _InIter =
std::istreambuf_iterator<char, std::char_traits<char> >]':
/data1/home/src/gcc-4.1.1/build/fr30-elf/libstdc++-v3/include/bits/locale_facets.h:4023:
error: insn does not satisfy its constraints:
(insn 140 139 78 0 (set (mem/s/c:SI (plus:SI (reg/f:SI 14 fp [orig:32
D.35158 ][32])
(const_int 4 [0x4])) [94 <result>+4 S4 A32])
(reg:SI 2 r2 [orig:67+4 ] [67])) 6 {movsi_internal} (nil)
(expr_list:REG_DEAD (reg:SI 2 r2 [orig:67+4 ] [67])
(nil)))
/data1/home/src/gcc-4.1.1/build/fr30-elf/libstdc++-v3/include/bits/locale_facets.h:4023:
internal compiler error: in copyprop_hardreg_forward_1, at regrename.c:1592
Compiling this too with '-O0' could help and then compiling again with
'-Os' could get it forwards
to the next crash... Then the same thing again and again and finally the
build could succeed... But
"What is broken, that is broken until being fixed!" :-(
Looking at the function 'copyprop_hardreg_forward_1()' at 'regrename.c'
and the line 1592 there
didn't help much. So making a bug report could help... BTW, the fr30
port maintainer was told to
be Nick Clifton, nickc@xxxxxxxxxx, so if you don't get any response,
trying to contact him could
be one way, but maybe these crashes could have given enough info for
some other to fix the
problem. I myself have thought to learn the RTL "Really Soon Now" but
let's see...
