https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62254
Bug ID: 62254 Summary: gcc-4.9 miscompiles linux kernel zlib for armv3 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: kugan at gcc dot gnu.org Created attachment 33392 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33392&action=edit testcase rm-none-linux-gnueabi-gcc -O -march=armv3 inffast.i inffast.i: In function ‘inflate_fast’: inffast.i:385:1: internal compiler error: Segmentation fault } ^ 0x9b878f crash_signal /home/kugan/work/sources/gcc-fsf/trunk/gcc/toplev.c:337 0xc90cf6 arm_reload_in_hi(rtx_def**) /home/kugan/work/sources/gcc-fsf/trunk/gcc/config/arm/arm.c:15279 0xd025cc gen_reload_inhi(rtx_def*, rtx_def*, rtx_def*) /home/kugan/work/sources/gcc-fsf/trunk/gcc/config/arm/arm.md:6346 0x89ca2b insn_gen_fn::operator()(rtx_def*, rtx_def*, rtx_def*) const /home/kugan/work/sources/gcc-fsf/trunk/gcc/recog.h:309 0x89ca2b check_and_process_move /home/kugan/work/sources/gcc-fsf/trunk/gcc/lra-constraints.c:1163 0x89ca2b curr_insn_transform /home/kugan/work/sources/gcc-fsf/trunk/gcc/lra-constraints.c:3270 0x89d5ac lra_constraints(bool) /home/kugan/work/sources/gcc-fsf/trunk/gcc/lra-constraints.c:4200 0x88a59f lra(_IO_FILE*) /home/kugan/work/sources/gcc-fsf/trunk/gcc/lra.c:2189 0x848da6 do_reload /home/kugan/work/sources/gcc-fsf/trunk/gcc/ira.c:5306 0x848da6 execute /home/kugan/work/sources/gcc-fsf/trunk/gcc/ira.c:5465 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. arm-none-linux-gnueabi-gcc -v Using built-in specs. COLLECT_GCC=/home/kugan/work/builds/gcc-fsf-trunk/tools/bin/arm-none-linux-gnueabi-gcc COLLECT_LTO_WRAPPER=/home/kugan/work/builds/gcc-fsf-trunk/tools/libexec/gcc/arm-none-linux-gnueabi/5.0.0/lto-wrapper Target: arm-none-linux-gnueabi Configured with: /home/kugan/work/sources/gcc-fsf/trunk/configure --target=arm-none-linux-gnueabi --prefix=/home/kugan/work/builds/gcc-fsf-trunk/tools --with-sysroot=/home/kugan/work/builds/gcc-fsf-trunk/sysroot-arm-none-linux-gnueabi --disable-libssp --disable-libgomp --disable-libmudflap --disable-libatomic --disable-libquadmath --without-libquadmath --enable-languages=c --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=softfp --with-thumb Thread model: posix gcc version 5.0.0 20140820 (experimental) (GCC)