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OpenMP offloading crashes when using AMDGPU #53559

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jhuber6 opened this issue Feb 2, 2022 · 8 comments
Closed

OpenMP offloading crashes when using AMDGPU #53559

jhuber6 opened this issue Feb 2, 2022 · 8 comments
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@arsenm @jdoerfert
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llvm:optimizations openmp release:reviewed
Milestone
LLVM 14.0.0 Release

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@jhuber6
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jhuber6 commented Feb 2, 2022 •
edited

Compiling XSBench with LLVM 14 crashes during optimizations. Flags were -fopenmp -fopenmp-targets=amdgcn-amd-amdhsa -O3

clang-14: /ccs/home/jhuber/llvm/llvm-project/llvm/include/llvm/ADT/APInt.h:990: bool llvm::APInt::operator==(const llvm::APInt&) const: Assertion `BitWidth == RHS.BitWidth && "Comparison requires equal bit widths"' failed.
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: /autofs/nccs-svm1_home1/jhuber/clang/bin/clang-14 -cc1 -triple amdgcn-amd-amdhsa -aux-triple x86_64-unknown-linux-gnu -emit-llvm-bc -emit-llvm-uselists -disable-free -clear-ast-before-backend -main-file-name Simulation.c -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=none -ffp-contract=on -fno-rounding-math -mconstructor-aliases -target-cpu gfx908 -fcuda-is-device -mlink-builtin-bitcode /autofs/nccs-svm1_home1/jhuber/clang/lib/libomptarget-new-amdgpu-gfx908.bc -mllvm -treat-scalable-fixed-error-as-warning -debugger-tuning=gdb -resource-dir /autofs/nccs-svm1_home1/jhuber/clang/lib/clang/14.0.0 -internal-isystem /autofs/nccs-svm1_home1/jhuber/clang/lib/clang/14.0.0/include/openmp_wrappers -include __clang_openmp_device_functions.h -internal-isystem /autofs/nccs-svm1_home1/jhuber/clang/lib/clang/14.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -internal-isystem /autofs/nccs-svm1_home1/jhuber/clang/lib/clang/14.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib64/gcc/x86_64-suse-linux/7/../../../../x86_64-suse-linux/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -Rpass=openmp-opt -Wall -std=gnu99 -fdebug-compilation-dir=/ccs/home/jhuber/XSBench/openmp-offload -ferror-limit 19 -fvisibility protected -fopenmp -fopenmp-target-new-runtime -fgnuc-version=4.2.1 -fcolor-diagnostics -vectorize-loops -vectorize-slp -fopenmp-is-device -fopenmp-host-ir-file-path /tmp/Simulation-88ab3e.bc -faddrsig -o /tmp/Simulation-7b18af.bc -x c Simulation.c
1.	<eof> parser at end of file
2.	Optimizer
 #0 0x00007f5d7f294b5f PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x00007f5d7f292409 SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f5d8942b2d0 __restore_rt (/lib64/libpthread.so.0+0x132d0)
 #3 0x00007f5d7e40e420 raise (/lib64/libc.so.6+0x39420)
 #4 0x00007f5d7e40fa01 abort (/lib64/libc.so.6+0x3aa01)
 #5 0x00007f5d7e406a1a __assert_fail_base (/lib64/libc.so.6+0x31a1a)
 #6 0x00007f5d7e406a92 (/lib64/libc.so.6+0x31a92)
 #7 0x00007f5d80e6b3d0 llvm::ObjectSizeOffsetVisitor::visitGlobalAlias(llvm::GlobalAlias&) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x2fe3d0)
 #8 0x00007f5d80e6ac65 llvm::InstVisitor<llvm::ObjectSizeOffsetVisitor, std::pair<llvm::APInt, llvm::APInt> >::visit(llvm::Instruction&) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x2fdc65)
 #9 0x00007f5d80e6ae60 llvm::ObjectSizeOffsetVisitor::compute(llvm::Value*) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x2fde60)
#10 0x00007f5d80e6b750 llvm::getObjectSize(llvm::Value const*, unsigned long&, llvm::DataLayout const&, llvm::TargetLibraryInfo const*, llvm::ObjectSizeOpts) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x2fe750)
#11 0x00007f5d820622a4 (anonymous namespace)::DSEState::isOverwrite(llvm::Instruction const*, llvm::Instruction const*, llvm::MemoryLocation const&, llvm::MemoryLocation const&, long&, long&) DeadStoreElimination.cpp:0:0
#12 0x00007f5d82067a3a (anonymous namespace)::DSEState::getDomMemoryDef(llvm::MemoryDef*, llvm::MemoryAccess*, llvm::MemoryLocation const&, llvm::Value const*, unsigned int&, unsigned int&, bool, unsigned int&) DeadStoreElimination.cpp:0:0
#13 0x00007f5d8206961a (anonymous namespace)::eliminateDeadStores(llvm::Function&, llvm::AAResults&, llvm::MemorySSA&, llvm::DominatorTree&, llvm::PostDominatorTree&, llvm::TargetLibraryInfo const&, llvm::LoopInfo const&) DeadStoreElimination.cpp:0:0
#14 0x00007f5d8206bec5 llvm::DSEPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/ccs/home/jhuber/clang/lib/libLLVMScalarOpts.so.14git+0xd3ec5)
#15 0x00007f5d7cd7a75d llvm::detail::PassModel<llvm::Function, llvm::DSEPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/ccs/home/jhuber/clang/lib/libLLVMPasses.so.14git+0x5d75d)
#16 0x00007f5d8010796c llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/ccs/home/jhuber/clang/lib/libLLVMCore.so.14git+0x27096c)
#17 0x00007f5d94eca1dd llvm::detail::PassModel<llvm::Function, llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function> >, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Function> >::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/ccs/home/jhuber/clang/lib/libLLVMAMDGPUCodeGen.so.14git+0x25a1dd)
#18 0x00007f5d80cc5736 llvm::CGSCCToFunctionPassAdaptor::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x158736)
#19 0x00007f5d94ecacdd llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::CGSCCToFunctionPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/ccs/home/jhuber/clang/lib/libLLVMAMDGPUCodeGen.so.14git+0x25acdd)
#20 0x00007f5d80cbe775 llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x151775)
#21 0x00007f5d83fd109d llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::PassManager<llvm::LazyCallGraph::SCC, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/ccs/home/jhuber/clang/lib/libLLVMipo.so.14git+0x1a309d)
#22 0x00007f5d80cc1a50 llvm::DevirtSCCRepeatedPass::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x154a50)
#23 0x00007f5d83fd107d llvm::detail::PassModel<llvm::LazyCallGraph::SCC, llvm::DevirtSCCRepeatedPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&>::run(llvm::LazyCallGraph::SCC&, llvm::AnalysisManager<llvm::LazyCallGraph::SCC, llvm::LazyCallGraph&>&, llvm::LazyCallGraph&, llvm::CGSCCUpdateResult&) (/ccs/home/jhuber/clang/lib/libLLVMipo.so.14git+0x1a307d)
#24 0x00007f5d80cc00bf llvm::ModuleToPostOrderCGSCCPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/ccs/home/jhuber/clang/lib/libLLVMAnalysis.so.14git+0x1530bf)
#25 0x00007f5d83fd10bd llvm::detail::PassModel<llvm::Module, llvm::ModuleToPostOrderCGSCCPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/ccs/home/jhuber/clang/lib/libLLVMipo.so.14git+0x1a30bd)
#26 0x00007f5d80105c12 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/ccs/home/jhuber/clang/lib/libLLVMCore.so.14git+0x26ec12)
#27 0x00007f5d83fd6008 llvm::ModuleInlinerWrapperPass::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/ccs/home/jhuber/clang/lib/libLLVMipo.so.14git+0x1a8008)
#28 0x00007f5d7cd7b1ed llvm::detail::PassModel<llvm::Module, llvm::ModuleInlinerWrapperPass, llvm::PreservedAnalyses, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/ccs/home/jhuber/clang/lib/libLLVMPasses.so.14git+0x5e1ed)
#29 0x00007f5d80105c12 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module> >::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/ccs/home/jhuber/clang/lib/libLLVMCore.so.14git+0x26ec12)
#30 0x00007f5d852e5192 (anonymous namespace)::EmitAssemblyHelper::RunOptimizationPipeline(clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >&, std::unique_ptr<llvm::ToolOutputFile, std::default_delete<llvm::ToolOutputFile> >&) (.constprop.836) BackendUtil.cpp:0:0
#31 0x00007f5d852e80d4 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::HeaderSearchOptions const&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, std::unique_ptr<llvm::raw_pwrite_stream, std::default_delete<llvm::raw_pwrite_stream> >) (/ccs/home/jhuber/clang/lib/libclangCodeGen.so.14git+0xf30d4)
#32 0x00007f5d85660dc0 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&) (/ccs/home/jhuber/clang/lib/libclangCodeGen.so.14git+0x46bdc0)
#33 0x00007f5d7881bfa9 clang::ParseAST(clang::Sema&, bool, bool) (/ccs/home/jhuber/clang/lib/libclangParse.so.14git+0x35fa9)
#34 0x00007f5d8565f900 clang::CodeGenAction::ExecuteAction() (/ccs/home/jhuber/clang/lib/libclangCodeGen.so.14git+0x46a900)
#35 0x00007f5d83367371 clang::FrontendAction::Execute() (/ccs/home/jhuber/clang/lib/libclangFrontend.so.14git+0x144371)
#36 0x00007f5d832d7f22 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/ccs/home/jhuber/clang/lib/libclangFrontend.so.14git+0xb4f22)
#37 0x00007f5d8921556b clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/ccs/home/jhuber/clang/lib/libclangFrontendTool.so.14git+0x456b)
#38 0x00000000004171d9 cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/autofs/nccs-svm1_home1/jhuber/clang/bin/clang-14+0x4171d9)
#39 0x0000000000413139 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#40 0x000000000040feb9 main (/autofs/nccs-svm1_home1/jhuber/clang/bin/clang-14+0x40feb9)
#41 0x00007f5d7e3f934a __libc_start_main (/lib64/libc.so.6+0x2434a)
#42 0x0000000000412d0a _start /home/abuild/rpmbuild/BUILD/glibc-2.26/csu/../sysdeps/x86_64/start.S:122:0
@jhuber6 jhuber6 added the openmp label Feb 2, 2022
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llvmbot commented Feb 2, 2022

@llvm/issue-subscribers-openmp

@jdoerfert jdoerfert self-assigned this Feb 2, 2022
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@jhuber6 This is still a problem in 14, right? We never merged the fix.

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jhuber6 commented Feb 15, 2022

Yes, it was fixed by 29c8eba so we should be able to cherry pick that right.

@jdoerfert jdoerfert mentioned this issue Feb 15, 2022
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@jdoerfert jdoerfert added this to the LLVM 14.0.0 Release milestone Feb 15, 2022
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/cherry-pick 29c8eba

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llvmbot commented Feb 15, 2022

/branch llvmbot/llvm-project/issue53559

llvmbot pushed a commit to llvmbot/llvm-project that referenced this issue Feb 15, 2022
@jdoerfert @llvmbot
[MemoryBuiltins][FIX] Adjust index type size properly wrt. AS casts
154bc0c 
Use existing functionality to strip constant offsets that works well
with AS casts and avoids the code duplication.

Since we strip AS casts during the computation of the offset we also
need to adjust the APInt properly to avoid mismatches in the bit width.
This code ensures the caller of `compute` sees APInts that match the
index type size of the value passed to `compute`, not the value result
of the strip pointer cast.

Fixes llvm#53559.

Differential Revision: https://reviews.llvm.org/D118727

(cherry picked from commit 29c8eba)
@llvmbot llvmbot mentioned this issue Feb 15, 2022
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llvmbot commented Feb 15, 2022

/pull-request llvmbot#66

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@arsenm What do you think about backporting this? 29c8eba

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arsenm commented Feb 16, 2022

I think it's fine to backport

tstellar pushed a commit to llvmbot/llvm-project that referenced this issue Feb 21, 2022
@jdoerfert @tstellar
[MemoryBuiltins][FIX] Adjust index type size properly wrt. AS casts
f3cfaf8 
Use existing functionality to strip constant offsets that works well
with AS casts and avoids the code duplication.

Since we strip AS casts during the computation of the offset we also
need to adjust the APInt properly to avoid mismatches in the bit width.
This code ensures the caller of `compute` sees APInts that match the
index type size of the value passed to `compute`, not the value result
of the strip pointer cast.

Fixes llvm#53559.

Differential Revision: https://reviews.llvm.org/D118727

(cherry picked from commit 29c8eba)
jdoerfert added a commit to jdoerfert/llvm-project that referenced this issue Mar 25, 2022
@jdoerfert
[MemoryBuiltins][FIX] Adjust index type size properly wrt. AS casts
632fb50 
Use existing functionality to strip constant offsets that works well
with AS casts and avoids the code duplication.

Since we strip AS casts during the computation of the offset we also
need to adjust the APInt properly to avoid mismatches in the bit width.
This code ensures the caller of `compute` sees APInts that match the
index type size of the value passed to `compute`, not the value result
of the strip pointer cast.

Fixes llvm#53559.

Differential Revision: https://reviews.llvm.org/D118727
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