clang crashes on "-v --target=powerpc-apple-darwin8 --print-supported-cpus"

[llvmbot]

Bugzilla Link	48354
Version	11.0
OS	Linux
Reporter	LLVM Bugzilla Contributor
CC	@zygoloid

Extended Description

saga ~ # clang-11 -v --target=powerpc-apple-darwin8 --print-supported-cpus
clang version 11.0.0
Target: powerpc-apple-darwin8
Thread model: posix
InstalledDir: /usr/lib/llvm/11/bin
(in-process)
"/usr/lib/llvm/11/bin/clang-11" -cc1 -triple powerpc-apple-darwin8 -Wundef-prefix=TARGET_OS_ -Werror=undef-prefix -fsyntax-only -disable-free -disable-llvm-verifier -discard-value-names -main-file-name -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fno-rounding-math -munwind-tables -faligned-alloc-unavailable -fcompatibility-qualified-id-block-type-checking -target-cpu ppc -mfloat-abi hard -fno-split-dwarf-inlining -debugger-tuning=lldb -v -resource-dir /usr/lib/llvm/11/bin/../../../../lib/clang/11.0.0 -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm/11/bin/../../../../lib/clang/11.0.0/include -internal-externc-isystem /usr/include -fdebug-compilation-dir /root -ferror-limit 19 -fblocks -fblocks-runtime-optional -fencode-extended-block-signature -fregister-global-dtors-with-atexit -fgnuc-version=4.2.1 -fmax-type-align=16 -fcolor-diagnostics -faddrsig -x c --print-supported-cpus
LLVM ERROR: Darwin is no longer supported for PowerPC
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0. Program arguments: clang-11 -v --target=powerpc-apple-darwin8 --print-supported-cpus
#​0 0x00007fc04c45e30a llvm::sys::PrintStackTrace(llvm::raw_ostream&) /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Support/Unix/Signals.inc:568:3
#​1 0x00007fc04c45c544 llvm::sys::RunSignalHandlers() /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Support/Signals.cpp:68:20
#​2 0x00007fc04c38bad8 HandleCrash /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Support/CrashRecoveryContext.cpp:77:5
#​3 0x00007fc04c38bad8 CrashRecoverySignalHandler /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Support/CrashRecoveryContext.cpp:382:62
#​4 0x00007fc04b4ec2f0 (/lib64/libc.so.6+0x392f0)
#​5 0x00007fc04b4ec271 raise /usr/src/debug/sys-libs/glibc-2.32-r3/glibc-2.32/signal/../sysdeps/unix/sysv/linux/raise.c:50:1
#​6 0x00007fc04b4d5536 abort /usr/src/debug/sys-libs/glibc-2.32-r3/glibc-2.32/stdlib/abort.c:81:7
#​7 0x00007fc04c39b27a llvm::raw_svector_ostream::raw_svector_ostream(llvm::SmallVectorImpl&) /usr/src/debug/sys-devel/llvm-11.0.0/llvm/include/llvm/Support/raw_ostream.h:566:64
#​8 0x00007fc04c39b27a llvm::report_fatal_error(llvm::Twine const&, bool) /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Support/ErrorHandling.cpp:114:34
#​9 0x00007fc04c39b3b5 (/usr/lib/llvm/11/bin/../lib64/libLLVM-11.so+0xa613b5)
#​10 0x00007fc04e6528ac computeTargetABI /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp:202:23
#​11 0x00007fc04e6528ac llvm::PPCTargetMachine::PPCTargetMachine(llvm::Target const&, llvm::Triple const&, llvm::StringRef, llvm::StringRef, llvm::TargetOptions const&, llvm::Optionalllvm::Reloc::Model, llvm::Optionalllvm::CodeModel::Model, llvm::CodeGenOpt::Level, bool) /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Target/PowerPC/PPCTargetMachine.cpp:313:33
#​12 0x00007fc04e652cdc llvm::RegisterTargetMachinellvm::PPCTargetMachine::Allocator(llvm::Target const&, llvm::Triple const&, llvm::StringRef, llvm::StringRef, llvm::TargetOptions const&, llvm::Optionalllvm::Reloc::Model, llvm::Optionalllvm::CodeModel::Model, llvm::CodeGenOpt::Level, bool) /usr/src/debug/sys-devel/llvm-11.0.0/llvm/include/llvm/Support/TargetRegistry.h:1121:12
#​13 0x0000560b32bd21da std::__cxx11::basic_string<char, std::char_traits, std::allocator >::_M_data() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/g++-v10/bits/basic_string.h:187:28
#​14 0x0000560b32bd21da std::__cxx11::basic_string<char, std::char_traits, std::allocator >::_M_is_local() const /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/g++-v10/bits/basic_string.h:222:23
#​15 0x0000560b32bd21da std::__cxx11::basic_string<char, std::char_traits, std::allocator >::_M_dispose() /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/g++-v10/bits/basic_string.h:231:18
#​16 0x0000560b32bd21da std::__cxx11::basic_string<char, std::char_traits, std::allocator >::~basic_string() /usr/lib/gcc/x86_64-pc-linux-gnu/10.2.0/include/g++-v10/bits/basic_string.h:658:19
#​17 0x0000560b32bd21da llvm::Triple::~Triple() /usr/lib/llvm/11/include/llvm/ADT/Triple.h:45:7
#​18 0x0000560b32bd21da llvm::Target::createTargetMachine(llvm::StringRef, llvm::StringRef, llvm::StringRef, llvm::TargetOptions const&, llvm::Optionalllvm::Reloc::Model, llvm::Optionalllvm::CodeModel::Model, llvm::CodeGenOpt::Level, bool) const /usr/lib/llvm/11/include/llvm/Support/TargetRegistry.h:402:39
#​19 0x0000560b32bd21da PrintSupportedCPUs /usr/src/debug/sys-devel/clang-11.0.0/clang/tools/driver/cc1_main.cpp:180:79
#​20 0x0000560b32bd21da cc1_main(llvm::ArrayRef<char const*>, char const*, void*) /usr/src/debug/sys-devel/clang-11.0.0/clang/tools/driver/cc1_main.cpp:215:30
#​21 0x0000560b32bd0117 ExecuteCC1Tool /usr/src/debug/sys-devel/clang-11.0.0/clang/tools/driver/driver.cpp:335:34
#​22 0x00007fc0525d5685 operator() /usr/src/debug/sys-devel/clang-11.0.0/clang/lib/Driver/Job.cpp:400:32
#​23 0x00007fc0525d5685 callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optionalllvm::StringRef >, std::string*, bool*) const::<lambda()> > /usr/lib/llvm/11/include/llvm/ADT/STLExtras.h:185:52
#​24 0x00007fc04c38bbe3 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) /usr/src/debug/sys-devel/llvm-11.0.0/llvm/lib/Support/CrashRecoveryContext.cpp:420:1
#​25 0x00007fc0525d78ce clang::driver::CC1Command::Execute(llvm::ArrayRef<llvm::Optionalllvm::StringRef >, std::__cxx11::basic_string<char, std::char_traits, std::allocator >, bool) const /usr/src/debug/sys-devel/clang-11.0.0/clang/lib/Driver/Job.cpp:404:10
#​26 0x00007fc0525ab559 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&) const /usr/src/debug/sys-devel/clang-11.0.0/clang/lib/Driver/Compilation.cpp:196:3
#​27 0x00007fc0525abab3 clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) const /usr/src/debug/sys-devel/clang-11.0.0/clang/lib/Driver/Compilation.cpp:246:5
#​28 0x00007fc0525b9189 llvm::SmallVectorBase::empty() const /usr/lib/llvm/11/include/llvm/ADT/SmallVector.h:69:47
#​29 0x00007fc0525b9189 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*> >&) /usr/src/debug/sys-devel/clang-11.0.0/clang/lib/Driver/Driver.cpp:1509:28
#​30 0x0000560b32bcc599 main /usr/src/debug/sys-devel/clang-11.0.0/clang/tools/driver/driver.cpp:502:39
#​31 0x00007fc04b4d6e0a __libc_start_main /usr/src/debug/sys-libs/glibc-2.32-r3/glibc-2.32/csu/../csu/libc-start.c:314:16
#​32 0x0000560b32bcd5ea _start (/usr/lib/llvm/11/bin/clang-11+0x115ea)
clang-11: error: clang frontend command failed due to signal (use -v to see invocation)
clang version 11.0.0
Target: powerpc-apple-darwin8
Thread model: posix
InstalledDir: /usr/lib/llvm/11/bin
clang-11: note: diagnostic msg: Error generating preprocessed source(s) - ignoring input from stdin.
clang-11: note: diagnostic msg: Error generating preprocessed source(s) - no preprocessable inputs.

[Endilll]

Still crashing as of post-17 trunk: https://godbolt.org/z/oM8W8c6Eh

clang version 18.0.0 (https://github.com/llvm/llvm-project.git 9dc5d8df16030a63deb2a425c6122985b5a06891)
Target: powerpc-apple-darwin8
Thread model: posix
InstalledDir: /opt/compiler-explorer/clang-assertions-trunk/bin

clang++: /root/llvm-project/clang/lib/Driver/ToolChains/Darwin.h:433:
bool clang::driver::toolchains::Darwin::isTargetWatchOSBased() const:
Assertion `TargetInitialized && "Target not initialized!"' failed.

PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
Stack dump:
0.	Program arguments: /opt/compiler-explorer/clang-assertions-trunk/bin/clang++ -gdwarf-4 -g -o /app/output.s -mllvm --x86-asm-syntax=intel -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -v --target=powerpc-apple-darwin8 --print-supported-cpus <source>
1.	Compilation construction
2.	Building compilation jobs
3.	Building compilation jobs
 #0 0x00000000036af848 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x36af848)
 #1 0x00000000036acf7c SignalHandler(int) Signals.cpp:0:0
 #2 0x00007fe2fee7a420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
 #3 0x00007fe2fe93d00b raise (/lib/x86_64-linux-gnu/libc.so.6+0x4300b)
 #4 0x00007fe2fe91c859 abort (/lib/x86_64-linux-gnu/libc.so.6+0x22859)
 #5 0x00007fe2fe91c729 (/lib/x86_64-linux-gnu/libc.so.6+0x22729)
 #6 0x00007fe2fe92dfd6 (/lib/x86_64-linux-gnu/libc.so.6+0x33fd6)
 #7 0x0000000003ff4d13 (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ff4d13)
 #8 0x0000000003ff5ea3 clang::driver::toolchains::DarwinClang::addClangWarningOptions(llvm::SmallVector<char const*, 16u>&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3ff5ea3)
 #9 0x0000000003fbbfb4 clang::driver::tools::Clang::ConstructJob(clang::driver::Compilation&, clang::driver::JobAction const&, clang::driver::InputInfo const&, llvm::SmallVector<clang::driver::InputInfo, 4u> const&, llvm::opt::ArgList const&, char const*) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3fbbfb4)
#10 0x0000000003f3e8d1 clang::driver::Driver::BuildJobsForActionNoCache(clang::driver::Compilation&, clang::driver::Action const*, clang::driver::ToolChain const*, llvm::StringRef, bool, bool, char const*, std::map<std::pair<clang::driver::Action const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, llvm::SmallVector<clang::driver::InputInfo, 4u>, std::less<std::pair<clang::driver::Action const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::pair<std::pair<clang::driver::Action const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>> const, llvm::SmallVector<clang::driver::InputInfo, 4u>>>>&, clang::driver::Action::OffloadKind) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f3e8d1)
#11 0x0000000003f3fa60 clang::driver::Driver::BuildJobsForAction(clang::driver::Compilation&, clang::driver::Action const*, clang::driver::ToolChain const*, llvm::StringRef, bool, bool, char const*, std::map<std::pair<clang::driver::Action const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>, llvm::SmallVector<clang::driver::InputInfo, 4u>, std::less<std::pair<clang::driver::Action const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>>>, std::allocator<std::pair<std::pair<clang::driver::Action const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>> const, llvm::SmallVector<clang::driver::InputInfo, 4u>>>>&, clang::driver::Action::OffloadKind) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f3fa60)
#12 0x0000000003f40579 clang::driver::Driver::BuildJobs(clang::driver::Compilation&) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f40579)
#13 0x0000000003f51c65 clang::driver::Driver::BuildCompilation(llvm::ArrayRef<char const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0x3f51c65)
#14 0x0000000000bd36d1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xbd36d1)
#15 0x0000000000ad1421 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xad1421)
#16 0x00007fe2fe91e083 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x24083)
#17 0x0000000000bce91e _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+++0xbce91e)
Program terminated with signal: SIGSEGV

[llvmbot]

@llvm/issue-subscribers-clang-driver

[nico]

This breaks tests on macOS: http://45.33.8.238/macm1/68904/step_7.txt

Please take a look and revert for now if it takes a while to fix.

[gulfemsavrun]

We started seeing the same test failure (Driver/unsupported-target-arch.c) reported above in the mac builders.

FAIL: Clang :: Driver/unsupported-target-arch.c (10746 of 19210)
******************** TEST 'Clang :: Driver/unsupported-target-arch.c' FAILED ********************
Command Output (stderr):
--
/opt/s/w/ir/x/w/llvm-llvm-project/clang/test/Driver/unsupported-target-arch.c:65:18: error: CHECK-PPCMAC: expected string not found in input
// CHECK-PPCMAC: error: unknown target triple 'unknown-apple-macosx10.4.0'{{$}}
                 ^
/opt/s/w/ir/x/w/llvm_build/tools/clang/test/Driver/Output/unsupported-target-arch.c.tmp.err:1:1: note: scanning from here
error: unknown target triple 'unknown-apple-macosx11.0.0'
^

Input file: /opt/s/w/ir/x/w/llvm_build/tools/clang/test/Driver/Output/unsupported-target-arch.c.tmp.err
Check file: /opt/s/w/ir/x/w/llvm-llvm-project/clang/test/Driver/unsupported-target-arch.c

-dump-input=help explains the following input dump.

Input was:
<<<<<<
          1: error: unknown target triple 'unknown-apple-macosx11.0.0' 
check:65     X~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
>>>>>>

--

https://logs.chromium.org/logs/fuchsia/buildbucket/cr-buildbucket/8770308692451134161/+/u/clang/test/stdout

[nico]

Fixed in b40a5be. Thanks, @MaskRay!

[nico]

Actually, now that check-clang passes, I see that many tests in check-llvm are also broken: http://45.33.8.238/macm1/68957/step_11.txt

I bisected the failure of llvm/test/CodeGen/AMDGPU/bf16.ll to 9f77fac as well.

(git bisect run ./run.sh script:

#!/bin/bash
set -e
ninja -C out/gn llvm/test -j250 || exit 125
out/gn/bin/llvm-lit llvm/test/CodeGen/AMDGPU/bf16.ll -sv

)