[Bug ipa/96734] gcc 10.2.0 fails to compile on mips64 due to crash in IPA SRA pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96734 --- Comment #6 from Ariadne Conill --- (In reply to Ariadne Conill from comment #5) > I should clarify. > > I cross-compiled g++ 10.2.0 to run on mips64 *host*. That part worked fine. > > Afterwards, the *host* mips64 g++ cannot compile itself. > > The *host* mips64 g++ (which was cross-compiled from an aarch64 machine), is > built with: > > Configured with: /home/buildozer/aports/main/gcc/src/gcc-10.2.0/configure > --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info > --build=mips64-alpine-linux-musl --host=mips64-alpine-linux-musl > --target=mips64-alpine-linux-musl --with-pkgversion='Alpine 10.2.0' > --enable-checking=release --disable-fixed-point --disable-libstdcxx-pch > --disable-multilib --disable-nls --disable-werror --disable-symvers > --enable-__cxa_atexit --enable-default-pie --enable-default-ssp > --enable-cloog-backend --enable-languages=c,c++,d,objc,fortran,ada > --with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft > --with-abi=64 --disable-bootstrap --disable-libquadmath --disable-libssp > --disable-libmpx --disable-libmudflap --disable-libsanitizer --enable-shared > --enable-threads --enable-tls --disable-libitm --with-system-zlib > --with-linker-hash-style=sysv > > So we have this crashing whenever we try to build gcc with 10.2.0 on a > mips64 host, either rebuilding from gcc 9.3.0 or from cross-compiled 10.2.0. An easy way to observe the behavior for yourself would be to use an Alpine chroot on a mips64 host (I think the GCC build farm has one, if not, I can facilitate access to a mips64 container).
[Bug ipa/96734] gcc 10.2.0 fails to compile on mips64 due to crash in IPA SRA pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96734 --- Comment #5 from Ariadne Conill --- I should clarify. I cross-compiled g++ 10.2.0 to run on mips64 *host*. That part worked fine. Afterwards, the *host* mips64 g++ cannot compile itself. The *host* mips64 g++ (which was cross-compiled from an aarch64 machine), is built with: Configured with: /home/buildozer/aports/main/gcc/src/gcc-10.2.0/configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --build=mips64-alpine-linux-musl --host=mips64-alpine-linux-musl --target=mips64-alpine-linux-musl --with-pkgversion='Alpine 10.2.0' --enable-checking=release --disable-fixed-point --disable-libstdcxx-pch --disable-multilib --disable-nls --disable-werror --disable-symvers --enable-__cxa_atexit --enable-default-pie --enable-default-ssp --enable-cloog-backend --enable-languages=c,c++,d,objc,fortran,ada --with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64 --disable-bootstrap --disable-libquadmath --disable-libssp --disable-libmpx --disable-libmudflap --disable-libsanitizer --enable-shared --enable-threads --enable-tls --disable-libitm --with-system-zlib --with-linker-hash-style=sysv So we have this crashing whenever we try to build gcc with 10.2.0 on a mips64 host, either rebuilding from gcc 9.3.0 or from cross-compiled 10.2.0.
[Bug ipa/96734] gcc 10.2.0 fails to compile on mips64 due to crash in IPA SRA pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96734 --- Comment #3 from Ariadne Conill --- When that method.ii is compiled against g++ 9.3.0 with the provided options, it compiles successfully. When built using a cross-compiled g++ 10.2.0, it crashes. So, the issue is specific to 10.2.0 it seems.
[Bug ipa/96734] gcc 10.2.0 fails to compile on mips64 due to crash in IPA SRA pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96734 --- Comment #1 from Ariadne Conill --- Manually compiling cp/method.o using: g++ -c -o cp/method.o -O2 method.ii works fine. I wonder if this is somehow related to pre-compiled headers, actually.
[Bug ipa/96734] New: gcc 10.2.0 fails to compile on mips64 due to crash in IPA SRA pass
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96734 Bug ID: 96734 Summary: gcc 10.2.0 fails to compile on mips64 due to crash in IPA SRA pass Product: gcc Version: 10.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: ariadne at dereferenced dot org CC: marxin at gcc dot gnu.org Target Milestone: --- When building gcc 10.2.0 using previous gcc 9.3.0 on a mips64 host, gcc 10.2.0 crashes while building stage3: during IPA pass: sra In file included from /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/cp/method.c:3199: ./gt-cp-method.h:36:2: internal compiler error: Segmentation fault 36 | }; | ^ 0x1208017a3 crash_signal /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/toplev.c:328 0x12041ef55 cgraph_edge::redirect_callee(cgraph_node*) /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/cgraph.c:1374 0x120431cd3 cgraph_edge::redirect_callee_duplicating_thunks(cgraph_node*) /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/cgraphclones.c:262 0x120432167 cgraph_node::create_clone(tree_node*, profile_count, bool, vec, bool, cgraph_node*, ipa_param_adjustments*, char const*) /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/cgraphclones.c:427 0x12043258b cgraph_node::create_virtual_clone(vec, vec*, ipa_param_adjustments*, char const*, unsigned int) /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/cgraphclones.c:613 0x1205eba27 process_isra_node_results /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/ipa-sra.c:3811 0x1205eba27 ipa_sra_analysis /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/ipa-sra.c:4047 0x1205eba27 execute /home/buildozer/aports/main/gcc/src/gcc-10.2.0/gcc/ipa-sra.c:4099 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. Full log of building cp/method.o: https://distfiles.dereferenced.org/method.log method.ii: https://distfiles.dereferenced.org/method.ii Unfortunately I wouldn't know where to begin creating a reduced test case for this. Sorry. I suspect the issue is because `caller` is null, which means to->check_calls_comdat_local_p() does a null dereference when trying to fetch the vtable. But I could be wrong entirely. :)
