[Clang] [Trunk] Assertion `getType()->isIntOrIntVectorTy() && "Tried to create an integer operation on a non-integer type!"' failed.

[yijan4845]

Compiler Explorer: https://godbolt.org/z/M45qzaj4b

It seems that the code will get another assertion failed if - is changed to + on line 5:
Assertion getType()->isIntOrIntVectorTy() && "Tried to create an integer operation on a non-integer type!"' failed.

Compiler Explorer for changed version: https://godbolt.org/z/9GYYPb9TW

Attempting to compile the following program with Clang Trunk and Clang Assertion Trunk:

typedef unsigned __int128 __attribute__ ((__vector_size__ (64))) v512u128;
v512u128 f;

void foo(_Complex double e) {
  v512u128 g = f - -e; 
}

Stack dump:

clang: /root/llvm-project/llvm/lib/IR/Instructions.cpp:2572: void llvm::BinaryOperator::AssertOK(): Assertion `getType()->isIntOrIntVectorTy() && "Tried to create an integer operation on a non-integer type!"' 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 -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -O3 <source>
1.	<eof> parser at end of file
2.	<source>:4:6: LLVM IR generation of declaration 'foo'
3.	<source>:4:6: Generating code for declaration 'foo'
 #0 0x0000000003b99d28 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b99d28)
 #1 0x0000000003b979ec llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b979ec)
 #2 0x0000000003ae61f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #3 0x000079d24de42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #4 0x000079d24de969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #5 0x000079d24de42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #6 0x000079d24de287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #7 0x000079d24de2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #8 0x000079d24de39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #9 0x00000000034c239d llvm::BinaryOperator::AssertOK() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x34c239d)
#10 0x00000000034c2795 llvm::BinaryOperator::Create(llvm::Instruction::BinaryOps, llvm::Value*, llvm::Value*, llvm::Twine const&, llvm::InsertPosition) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x34c2795)
#11 0x0000000001384d6e llvm::IRBuilderBase::CreateSub(llvm::Value*, llvm::Value*, llvm::Twine const&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x1384d6e)
#12 0x00000000043bbb56 (anonymous namespace)::ScalarExprEmitter::EmitSub((anonymous namespace)::BinOpInfo const&) CGExprScalar.cpp:0:0
#13 0x00000000043cdcdb (anonymous namespace)::ScalarExprEmitter::VisitMinus(clang::UnaryOperator const*, clang::QualType) CGExprScalar.cpp:0:0
#14 0x00000000043c12e7 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#15 0x00000000043c1b4b (anonymous namespace)::ScalarExprEmitter::Visit(clang::Expr*) CGExprScalar.cpp:0:0
#16 0x00000000043c9dac (anonymous namespace)::ScalarExprEmitter::VisitCastExpr(clang::CastExpr*) CGExprScalar.cpp:0:0
#17 0x00000000043c000c clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#18 0x00000000043cd306 clang::CodeGen::CodeGenFunction::EmitPromotedScalarExpr(clang::Expr const*, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x43cd306)
#19 0x00000000043cdeba (anonymous namespace)::ScalarExprEmitter::EmitBinOps(clang::BinaryOperator const*, clang::QualType) CGExprScalar.cpp:0:0
#20 0x00000000043c0b59 clang::StmtVisitorBase<std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*>::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#21 0x00000000043c58ac clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x43c58ac)
#22 0x000000000431869f clang::CodeGen::CodeGenFunction::EmitScalarInit(clang::Expr const*, clang::ValueDecl const*, clang::CodeGen::LValue, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x431869f)
#23 0x000000000431a104 clang::CodeGen::CodeGenFunction::EmitExprAsInit(clang::Expr const*, clang::ValueDecl const*, clang::CodeGen::LValue, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x431a104)
#24 0x00000000043265b1 clang::CodeGen::CodeGenFunction::EmitAutoVarInit(clang::CodeGen::CodeGenFunction::AutoVarEmission const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x43265b1)
#25 0x0000000004326b76 clang::CodeGen::CodeGenFunction::EmitVarDecl(clang::VarDecl const&) (.part.0) CGDecl.cpp:0:0
#26 0x0000000004326dc6 clang::CodeGen::CodeGenFunction::EmitDecl(clang::Decl const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4326dc6)
#27 0x0000000003eecae7 clang::CodeGen::CodeGenFunction::EmitDeclStmt(clang::DeclStmt const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3eecae7)
#28 0x0000000003f036f9 clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f036f9)
#29 0x0000000003efb395 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef<clang::Attr const*>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3efb395)
#30 0x0000000003f03114 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f03114)
#31 0x0000000003f6b5b4 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f6b5b4)
#32 0x0000000003f7d59c clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f7d59c)
#33 0x0000000003fe5f4a clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe5f4a)
#34 0x0000000003fe0c65 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe0c65)
#35 0x0000000003fe121b clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe121b)
#36 0x0000000003feb593 clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0) CodeGenModule.cpp:0:0
#37 0x00000000044f2e26 (anonymous namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef) ModuleBuilder.cpp:0:0
#38 0x00000000044e3a08 clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44e3a08)
#39 0x000000000661af54 clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x661af54)
#40 0x00000000044f0998 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44f0998)
#41 0x00000000047aa2e9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x47aa2e9)
#42 0x0000000004728c2e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4728c2e)
#43 0x000000000488fb6e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x488fb6e)
#44 0x0000000000cd801f cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcd801f)
#45 0x0000000000ccfd2a ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&) driver.cpp:0:0
#46 0x0000000004534669 void llvm::function_ref<void ()>::callback_fn<clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const::'lambda'()>(long) Job.cpp:0:0
#47 0x0000000003ae66a4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3ae66a4)
#48 0x0000000004534c5f clang::driver::CC1Command::Execute(llvm::ArrayRef<std::optional<llvm::StringRef>>, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>*, bool*) const (.part.0) Job.cpp:0:0
#49 0x00000000044fa59d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44fa59d)
#50 0x00000000044fb68d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44fb68d)
#51 0x0000000004502fb5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4502fb5)
#52 0x0000000000cd4eef clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcd4eef)
#53 0x0000000000ba49a4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xba49a4)
#54 0x000079d24de29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#55 0x000079d24de29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#56 0x0000000000ccf7de _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xccf7de)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134

[llvmbot]

@llvm/issue-subscribers-clang-codegen

Author: Yihan Yang (yijan4845)

Compiler Explorer: [https://godbolt.org/z/M45qzaj4b](https://godbolt.org/z/M45qzaj4b)

It seems that the code will get another assertion failed if - is changed to + on line 5:
Assertion getType()->isIntOrIntVectorTy() && "Tried to create an integer operation on a non-integer type!"' failed.

Compiler Explorer for changed version: https://godbolt.org/z/9GYYPb9TW

Attempting to compile the following program with Clang Trunk and Clang Assertion Trunk:

typedef unsigned __int128 __attribute__ ((__vector_size__ (64))) v512u128;
v512u128 f;

void foo(_Complex double e) {
  v512u128 g = f - -e; 
}

Stack dump:

clang: /root/llvm-project/llvm/lib/IR/Instructions.cpp:2572: void llvm::BinaryOperator::AssertOK(): Assertion `getType()->isIntOrIntVectorTy() && "Tried to create an integer operation on a non-integer type!"' 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 -fno-verbose-asm -S --gcc-toolchain=/opt/compiler-explorer/gcc-snapshot -fcolor-diagnostics -fno-crash-diagnostics -O3 <source>
1.	<eof> parser at end of file
2.	<source>:4:6: LLVM IR generation of declaration 'foo'
3.	<source>:4:6: Generating code for declaration 'foo'
 #<!-- -->0 0x0000000003b99d28 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b99d28)
 #<!-- -->1 0x0000000003b979ec llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3b979ec)
 #<!-- -->2 0x0000000003ae61f8 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
 #<!-- -->3 0x000079d24de42520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
 #<!-- -->4 0x000079d24de969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
 #<!-- -->5 0x000079d24de42476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
 #<!-- -->6 0x000079d24de287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
 #<!-- -->7 0x000079d24de2871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
 #<!-- -->8 0x000079d24de39e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
 #<!-- -->9 0x00000000034c239d llvm::BinaryOperator::AssertOK() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x34c239d)
#<!-- -->10 0x00000000034c2795 llvm::BinaryOperator::Create(llvm::Instruction::BinaryOps, llvm::Value*, llvm::Value*, llvm::Twine const&amp;, llvm::InsertPosition) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x34c2795)
#<!-- -->11 0x0000000001384d6e llvm::IRBuilderBase::CreateSub(llvm::Value*, llvm::Value*, llvm::Twine const&amp;, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x1384d6e)
#<!-- -->12 0x00000000043bbb56 (anonymous namespace)::ScalarExprEmitter::EmitSub((anonymous namespace)::BinOpInfo const&amp;) CGExprScalar.cpp:0:0
#<!-- -->13 0x00000000043cdcdb (anonymous namespace)::ScalarExprEmitter::VisitMinus(clang::UnaryOperator const*, clang::QualType) CGExprScalar.cpp:0:0
#<!-- -->14 0x00000000043c12e7 clang::StmtVisitorBase&lt;std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*&gt;::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#<!-- -->15 0x00000000043c1b4b (anonymous namespace)::ScalarExprEmitter::Visit(clang::Expr*) CGExprScalar.cpp:0:0
#<!-- -->16 0x00000000043c9dac (anonymous namespace)::ScalarExprEmitter::VisitCastExpr(clang::CastExpr*) CGExprScalar.cpp:0:0
#<!-- -->17 0x00000000043c000c clang::StmtVisitorBase&lt;std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*&gt;::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#<!-- -->18 0x00000000043cd306 clang::CodeGen::CodeGenFunction::EmitPromotedScalarExpr(clang::Expr const*, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x43cd306)
#<!-- -->19 0x00000000043cdeba (anonymous namespace)::ScalarExprEmitter::EmitBinOps(clang::BinaryOperator const*, clang::QualType) CGExprScalar.cpp:0:0
#<!-- -->20 0x00000000043c0b59 clang::StmtVisitorBase&lt;std::add_pointer, (anonymous namespace)::ScalarExprEmitter, llvm::Value*&gt;::Visit(clang::Stmt*) CGExprScalar.cpp:0:0
#<!-- -->21 0x00000000043c58ac clang::CodeGen::CodeGenFunction::EmitScalarExpr(clang::Expr const*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x43c58ac)
#<!-- -->22 0x000000000431869f clang::CodeGen::CodeGenFunction::EmitScalarInit(clang::Expr const*, clang::ValueDecl const*, clang::CodeGen::LValue, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x431869f)
#<!-- -->23 0x000000000431a104 clang::CodeGen::CodeGenFunction::EmitExprAsInit(clang::Expr const*, clang::ValueDecl const*, clang::CodeGen::LValue, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x431a104)
#<!-- -->24 0x00000000043265b1 clang::CodeGen::CodeGenFunction::EmitAutoVarInit(clang::CodeGen::CodeGenFunction::AutoVarEmission const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x43265b1)
#<!-- -->25 0x0000000004326b76 clang::CodeGen::CodeGenFunction::EmitVarDecl(clang::VarDecl const&amp;) (.part.0) CGDecl.cpp:0:0
#<!-- -->26 0x0000000004326dc6 clang::CodeGen::CodeGenFunction::EmitDecl(clang::Decl const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4326dc6)
#<!-- -->27 0x0000000003eecae7 clang::CodeGen::CodeGenFunction::EmitDeclStmt(clang::DeclStmt const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3eecae7)
#<!-- -->28 0x0000000003f036f9 clang::CodeGen::CodeGenFunction::EmitSimpleStmt(clang::Stmt const*, llvm::ArrayRef&lt;clang::Attr const*&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f036f9)
#<!-- -->29 0x0000000003efb395 clang::CodeGen::CodeGenFunction::EmitStmt(clang::Stmt const*, llvm::ArrayRef&lt;clang::Attr const*&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3efb395)
#<!-- -->30 0x0000000003f03114 clang::CodeGen::CodeGenFunction::EmitCompoundStmtWithoutScope(clang::CompoundStmt const&amp;, bool, clang::CodeGen::AggValueSlot) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f03114)
#<!-- -->31 0x0000000003f6b5b4 clang::CodeGen::CodeGenFunction::EmitFunctionBody(clang::Stmt const*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f6b5b4)
#<!-- -->32 0x0000000003f7d59c clang::CodeGen::CodeGenFunction::GenerateCode(clang::GlobalDecl, llvm::Function*, clang::CodeGen::CGFunctionInfo const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3f7d59c)
#<!-- -->33 0x0000000003fe5f4a clang::CodeGen::CodeGenModule::EmitGlobalFunctionDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe5f4a)
#<!-- -->34 0x0000000003fe0c65 clang::CodeGen::CodeGenModule::EmitGlobalDefinition(clang::GlobalDecl, llvm::GlobalValue*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe0c65)
#<!-- -->35 0x0000000003fe121b clang::CodeGen::CodeGenModule::EmitGlobal(clang::GlobalDecl) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3fe121b)
#<!-- -->36 0x0000000003feb593 clang::CodeGen::CodeGenModule::EmitTopLevelDecl(clang::Decl*) (.part.0) CodeGenModule.cpp:0:0
#<!-- -->37 0x00000000044f2e26 (anonymous namespace)::CodeGeneratorImpl::HandleTopLevelDecl(clang::DeclGroupRef) ModuleBuilder.cpp:0:0
#<!-- -->38 0x00000000044e3a08 clang::BackendConsumer::HandleTopLevelDecl(clang::DeclGroupRef) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44e3a08)
#<!-- -->39 0x000000000661af54 clang::ParseAST(clang::Sema&amp;, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x661af54)
#<!-- -->40 0x00000000044f0998 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44f0998)
#<!-- -->41 0x00000000047aa2e9 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x47aa2e9)
#<!-- -->42 0x0000000004728c2e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4728c2e)
#<!-- -->43 0x000000000488fb6e clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x488fb6e)
#<!-- -->44 0x0000000000cd801f cc1_main(llvm::ArrayRef&lt;char const*&gt;, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcd801f)
#<!-- -->45 0x0000000000ccfd2a ExecuteCC1Tool(llvm::SmallVectorImpl&lt;char const*&gt;&amp;, llvm::ToolContext const&amp;) driver.cpp:0:0
#<!-- -->46 0x0000000004534669 void llvm::function_ref&lt;void ()&gt;::callback_fn&lt;clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const::'lambda'()&gt;(long) Job.cpp:0:0
#<!-- -->47 0x0000000003ae66a4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref&lt;void ()&gt;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x3ae66a4)
#<!-- -->48 0x0000000004534c5f clang::driver::CC1Command::Execute(llvm::ArrayRef&lt;std::optional&lt;llvm::StringRef&gt;&gt;, std::__cxx11::basic_string&lt;char, std::char_traits&lt;char&gt;, std::allocator&lt;char&gt;&gt;*, bool*) const (.part.0) Job.cpp:0:0
#<!-- -->49 0x00000000044fa59d clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&amp;, clang::driver::Command const*&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44fa59d)
#<!-- -->50 0x00000000044fb68d clang::driver::Compilation::ExecuteJobs(clang::driver::JobList const&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x44fb68d)
#<!-- -->51 0x0000000004502fb5 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&amp;, llvm::SmallVectorImpl&lt;std::pair&lt;int, clang::driver::Command const*&gt;&gt;&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4502fb5)
#<!-- -->52 0x0000000000cd4eef clang_main(int, char**, llvm::ToolContext const&amp;) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xcd4eef)
#<!-- -->53 0x0000000000ba49a4 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xba49a4)
#<!-- -->54 0x000079d24de29d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#<!-- -->55 0x000079d24de29e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#<!-- -->56 0x0000000000ccf7de _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xccf7de)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134

[shafik]

Looks like this goes back to clang-5: https://godbolt.org/z/cGf4qM915

So if you are going to submit more fuzzer bugs please help us out and do a little more footwork for each one. It would be helpful to know what version of clang this started with. This is critical to prioritize, if this happened in the last release we can usually quickly find the PR and ping the author and turn around a fix soon.

For C even though we don't have assertions builds going back we can use C++ and then pass -x c and that will allow you to verify assertions as far back as you need.

Please don't include flags not required to reproduce, we should strive for as minimal as possible.