[Bug target/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 --- Comment #14 from reed kotler --- (In reply to Andrew Pinski from comment #13) > (In reply to reed kotler from comment #12) > > > > Do you know where the original line was that made it fail in the .ii? > > Yes: > # 227 "/home/rkotler/llvm_trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp" > if (Name == "stat") return (uint64_t)&stat; > if (Name == "fstat") return (uint64_t)&fstat; > if (Name == "lstat") return (uint64_t)&lstat; > if (Name == "stat64") return (uint64_t)&stat64; > if (Name == "fstat64") return (uint64_t)&fstat64; > if (Name == "lstat64") return (uint64_t)&lstat64; > if (Name == "atexit") return (uint64_t)&atexit; > if (Name == "mknod") return (uint64_t)&mknod; > # 254 "/home/rkotler/llvm_trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp" > if (Name == "__main") return (uint64_t)&jit_noop; > > > You can just cast them to unsigned long before casting them to uint64_t for > the work around. Great! This code is from LLVM. By making this change I can build a working llvm using gcc cross and native. Do we have any idea when the gcc will be fixed so I don't need to this workaround?
[Bug c++/60556] New: tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 Bug ID: 60556 Summary: tip of tree crash with mips compiler Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: reed.kotler at imgtec dot com Attached is .ii file and .sh to run the compiler. This is a compiler I've built with tip of tree sources. rkotler@mipssw006:~/slave/gccbugx86/build/lib/ExecutionEngine$ bash doit.sh /home/rkotler/llvm_trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp: In member function 'virtual void* llvm::RTDyldMemoryManager::getPointerToNamedFunction(const string&, bool)': /home/rkotler/llvm_trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp:227:41: internal compiler error: Segmentation fault if (Name == "stat") return (uint64_t)&stat; ^ 0xb0acbf crash_signal /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/toplev.c:337 0x8960bb emit_move_insn(rtx_def*, rtx_def*) /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/expr.c:3609 0x899379 convert_move(rtx_def*, rtx_def*, int) /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/expr.c:567 0x8997da convert_modes(machine_mode, machine_mode, rtx_def*, int) /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/expr.c:798 0x8a458a expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/expr.c:8203 0x7bc783 expand_gimple_stmt_1 /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/cfgexpand.c:3252 0x7bc783 expand_gimple_stmt /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/cfgexpand.c:3312 0x7bd9e7 expand_gimple_basic_block /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/cfgexpand.c:5152 0x7c0119 gimple_expand_cfg /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/cfgexpand.c:5731 0x7c0119 execute /home/rkotler/slave/slavebuildgccbe/build/src/gcc/gcc/cfgexpand.c:5951 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. rkotler@mipssw006:~/slave/gccbugx86/build/lib/ExecutionEngine$
[Bug c++/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 --- Comment #1 from reed kotler --- Created attachment 32377 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32377&action=edit .sh file to run the compiler
[Bug target/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 --- Comment #4 from reed kotler --- it's too big. what do you suggest? Where should i put it? 1200k bytes
[Bug target/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 --- Comment #6 from reed kotler --- (In reply to Andrew Pinski from comment #3) > Also how did you configure your compiler? $ /home/rkotler/slave/slavebuildgccbe/build/src/gcc/configure --prefix=/home/r kotler/slave/slavebuildgccbe/build/install-mips-mti-linux-gnu --disable-libssp - -disable-libgomp --disable-libmudflap --disable-fixed-point --disable-decimal-fl oat --with-mips-plt --target=mips-mti-linux-gnu --enable-languages=c --with-newl ib --without-headers --disable-shared --disable-threads --disable-libquadmath -- disable-libatomic $ /home/rkotler/slave/slavebuildgccbe/build/src/gcc/libatomic/configure --cach e-file=./config.cache --enable-multilib --with-cross-host=x86_64-unknown-linux-g nu --prefix=/home/rkotler/slave/slavebuildgccbe/build/install-mips-mti-linux-gnu --disable-libssp --disable-libgomp --disable-libmudflap --disable-fixed-point - -disable-decimal-float --with-mips-plt --enable-__cxa_atexit --with-sysroot=/hom e/rkotler/slave/slavebuildgccbe/build/install-mips-mti-linux-gnu/sysroot --with- build-sysroot=/home/rkotler/slave/slavebuildgccbe/build/install-mips-mti-linux-g nu/sysroot --enable-languages=c,c++,lto --program-transform-name=s&^&mips-mti-li nux-gnu-& --disable-option-checking --with-target-subdir=mips-mti-linux-gnu --bu ild=x86_64-unknown-linux-gnu --host=mips-mti-linux-gnu --target=mips-mti-linux-g nu --srcdir=/home/rkotler/slave/slavebuildgccbe/build/src/gcc/libatomicq
[Bug target/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 --- Comment #7 from reed kotler --- Created attachment 32378 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32378&action=edit .ii gziped
[Bug target/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556 --- Comment #9 from reed kotler --- (In reply to Andrew Pinski from comment #8) > I can reproduce the bug and now I am reducing it. Awesome! Thanks.
[Bug target/60556] tip of tree crash with mips compiler
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60556
--- Comment #12 from reed kotler ---
(In reply to Andrew Pinski from comment #11)
> (In reply to Andrew Pinski from comment #10)
> > I should note the code is undefined and has (uint64_t)&stat and that itself
> > is causing the issue. If I change it to be
> > (uint64_t)(unsigned long)&stat, GCC does not crash.
>
> But using long instead of unsigned long causes the crash.
>
> Reduced testcase:
> int g (int);
> unsigned long long f(void) {
> return (unsigned long long)(long)&g;
> }
>
> This happens with both the C and C++ front-ends.
Thanks.
Do you know where the original line was that made it fail in the .ii?
Depending on the location, I can possibly make the source change for now until
the bug gets fixed in gcc.
