John David Anglin writes: > On Sun, 18 Nov 2012, Richard Sandiford wrote: > > > HOST_WIDE_INT start = bitpos_ - (bitpos_ % unit); > > if (bitregion_start_ && start < bitregion_start_) > > break; > > - if (bitregion_end_ && start + unit > bitregion_end_ + 1) > > + if (start + unit > bitregion_end_ + 1) > > This causes: > > /home/dave/gnu/gcc/objdir/./prev-gcc/g++ > -B/home/dave/gnu/gcc/objdir/./prev-gcc/ > -B/home/dave/opt/gnu/gcc/gcc-4.8.0/hppa-linux-gnu/bin/ -nostdinc++ > -B/home/dave/gnu/gcc/objdir/prev-hppa-linux-gnu/libstdc++-v3/src/.libs > -B/home/dave/gnu/gcc/objdir/prev-hppa-linux-gnu/libstdc++-v3/libsupc++/.libs > -I/home/dave/gnu/gcc/objdir/prev-hppa-linux-gnu/libstdc++-v3/include/hppa-linux-gnu > -I/home/dave/gnu/gcc > /objdir/prev-hppa-linux-gnu/libstdc++-v3/include > -I/home/dave/gnu/gcc/gcc/libstdc++-v3/libsupc++ > -L/home/dave/gnu/gcc/objdir/prev-hppa-linux-gnu/libstdc++-v3/sr > c/.libs > -L/home/dave/gnu/gcc/objdir/prev-hppa-linux-gnu/libstdc++-v3/libsupc++/.libs > -c -g -O2 -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tabl > es -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual > -Wmissing-format-attribut > e -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings > -Werror > -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. > -I../../g > cc/gcc/../include -I../../gcc/gcc/../libcpp/include > -I../../gcc/gcc/../libdecnu > mber -I../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber > -I../../gcc/gcc/../li > bbacktrace ../../gcc/gcc/stor-layout.c -o > stor-layout.o../../gcc/gcc/stor-layout.c: In member function ãbool > bit_field_mode_iterator::n > ext_mode(machine_mode*)ã: > ../../gcc/gcc/stor-layout.c:2690:43: error: comparison between signed and > unsign > ed integer expressions [-Werror=sign-compare] > if (start + unit > bitregion_end_ + 1) > ^ > cc1plus: all warnings being treated as errors
This error also breaks m68k-linux bootstrap. HWI32 issue?
