[llvm-bugs] [Bug 49719] New: I got a crash when I was compiling a test. Clang12 using c++20 templated lambdas
via llvm-bugs
llvm-bugs at lists.llvm.org
Wed Mar 24 19:11:39 PDT 2021
https://bugs.llvm.org/show_bug.cgi?id=49719
Bug ID: 49719
Summary: I got a crash when I was compiling a test. Clang12
using c++20 templated lambdas
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: Frontend
Assignee: unassignedclangbugs at nondot.org
Reporter: peeceseven at gmail.com
CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
richard-llvm at metafoo.co.uk
Created attachment 24692
--> https://bugs.llvm.org/attachment.cgi?id=24692&action=edit
reduced test case
Stack dump:
0. Program arguments: /usr/lib/llvm-12/bin/clang -cc1 -triple
x86_64-pc-linux-gnu -emit-obj -mrelax-all --mrelax-relocations -disable-free
-disable-llvm-verifier -discard-value-names -main-file-name random_test.cpp
-mrelocation-model static -mframe-pointer=all -fmath-errno -fno-rounding-math
-mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic
-fno-split-dwarf-inlining -debug-info-kind=limited -dwarf-version=4
-debugger-tuning=gdb -sys-header-deps -D CMAKE_INTDIR=\"Debug\" -Wall -Wextra
-Wshadow -Wno-error=shadow -Wnon-virtual-dtor -Wold-style-cast -Wcast-align
-Wunused -Woverloaded-virtual -Wpedantic -Wconversion -Wsign-conversion
-Wnull-dereference -Wdouble-promotion -Wformat=2 -Werror -std=c++20
-fdeprecated-macro -ferror-limit 19 -fgnuc-version=4.2.1 -fno-implicit-modules
-fcxx-exceptions -fexceptions -faddrsig -x c++ random_test-7f79f0.cpp
1. random_test-7f79f0.cpp:2:21: current parser token ')'
2. random_test-7f79f0.cpp:1:23: instantiating function definition
'(anonymous class)::operator()<>'
#0 0x00007f7ffc838ea3 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int)
(/lib/x86_64-linux-gnu/libLLVM-12.so.1+0xbd8ea3)
#1 0x00007f7ffc8371c0 llvm::sys::RunSignalHandlers()
(/lib/x86_64-linux-gnu/libLLVM-12.so.1+0xbd71c0)
#2 0x00007f7ffc83950f (/lib/x86_64-linux-gnu/libLLVM-12.so.1+0xbd950f)
#3 0x00007f80040823c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
#4 0x00007f8001e3004e
clang::ASTContext::getSubstTemplateTypeParmType(clang::TemplateTypeParmType
const*, clang::QualType) const
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0xa1004e)
#5 0x00007f80028e3028 (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14c3028)
#6 0x00007f80028df7a2 (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14bf7a2)
#7 0x00007f80028e4b03 clang::Sema::SubstParmVarDecl(clang::ParmVarDecl*,
clang::MultiLevelTemplateArgumentList const&, int, llvm::Optional<unsigned
int>, bool) (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14c4b03)
#8 0x00007f8002927474 (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x1507474)
#9 0x00007f8002379f3b
clang::Sema::runWithSufficientStackSpace(clang::SourceLocation,
llvm::function_ref<void ()>)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0xf59f3b)
#10 0x00007f800292056b clang::Sema::SubstDecl(clang::Decl*,
clang::DeclContext*, clang::MultiLevelTemplateArgumentList const&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x150056b)
#11 0x00007f8002912bc8 clang::Sema::FindInstantiatedDecl(clang::SourceLocation,
clang::NamedDecl*, clang::MultiLevelTemplateArgumentList const&, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14f2bc8)
#12 0x00007f80028fbab4 (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14dbab4)
#13 0x00007f80028ea282 (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14ca282)
#14 0x00007f80029003fe (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14e03fe)
#15 0x00007f80028ea221 clang::Sema::SubstStmt(clang::Stmt*,
clang::MultiLevelTemplateArgumentList const&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x14ca221)
#16 0x00007f8002922b1e
clang::Sema::InstantiateFunctionDefinition(clang::SourceLocation,
clang::FunctionDecl*, bool, bool, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x1502b1e)
#17 0x00007f8002379f3b
clang::Sema::runWithSufficientStackSpace(clang::SourceLocation,
llvm::function_ref<void ()>)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0xf59f3b)
#18 0x00007f800289c6f0 clang::Sema::DeduceReturnType(clang::FunctionDecl*,
clang::SourceLocation, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x147c6f0)
#19 0x00007f80025a981b clang::Sema::DiagnoseUseOfDecl(clang::NamedDecl*,
llvm::ArrayRef<clang::SourceLocation>, clang::ObjCInterfaceDecl const*, bool,
bool, clang::ObjCInterfaceDecl*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x118981b)
#20 0x00007f80027d7250 (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x13b7250)
#21 0x00007f80027dd875 clang::Sema::BuildCallToObjectOfClassType(clang::Scope*,
clang::Expr*, clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>,
clang::SourceLocation) (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x13bd875)
#22 0x00007f80025c3aea clang::Sema::ActOnCallExpr(clang::Scope*, clang::Expr*,
clang::SourceLocation, llvm::MutableArrayRef<clang::Expr*>,
clang::SourceLocation, clang::Expr*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x11a3aea)
#23 0x00007f8001d984c1
clang::Parser::ParsePostfixExpressionSuffix(clang::ActionResult<clang::Expr*,
true>) (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9784c1)
#24 0x00007f8001d995c4
clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool, bool&,
clang::Parser::TypeCastState, bool, bool*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9795c4)
#25 0x00007f8001d97371
clang::Parser::ParseCastExpression(clang::Parser::CastParseKind, bool,
clang::Parser::TypeCastState, bool, bool*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x977371)
#26 0x00007f8001d95c73
clang::Parser::ParseAssignmentExpression(clang::Parser::TypeCastState)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x975c73)
#27 0x00007f8001d7d8fd
clang::Parser::ParseParameterDeclarationClause(clang::DeclaratorContext,
clang::ParsedAttributes&,
llvm::SmallVectorImpl<clang::DeclaratorChunk::ParamInfo>&,
clang::SourceLocation&) (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x95d8fd)
#28 0x00007f8001d7b135
clang::Parser::ParseFunctionDeclarator(clang::Declarator&,
clang::ParsedAttributes&, clang::BalancedDelimiterTracker&, bool, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x95b135)
#29 0x00007f8001d79396 clang::Parser::ParseDirectDeclarator(clang::Declarator&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x959396)
#30 0x00007f8001d772b3
clang::Parser::ParseDeclaratorInternal(clang::Declarator&, void
(clang::Parser::*)(clang::Declarator&))
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9572b3)
#31 0x00007f8001d6d61b clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x94d61b)
#32 0x00007f8001e0a91d
clang::Parser::ParseDeclOrFunctionDefInternal(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9ea91d)
#33 0x00007f8001e0a32c
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9ea32c)
#34 0x00007f8001e094cf
clang::Parser::ParseExternalDeclaration(clang::Parser::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9e94cf)
#35 0x00007f8001e07cbf
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9e7cbf)
#36 0x00007f8001e076d7
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x9e76d7)
#37 0x00007f8001d58ce7 clang::ParseAST(clang::Sema&, bool, bool)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x938ce7)
#38 0x00007f80032ee068 clang::FrontendAction::Execute()
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x1ece068)
#39 0x00007f800327bd21
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x1e5bd21)
#40 0x00007f8003350452
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/lib/x86_64-linux-gnu/libclang-cpp.so.12+0x1f30452)
#41 0x0000000000412782 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/usr/lib/llvm-12/bin/clang+0x412782)
#42 0x0000000000410afe (/usr/lib/llvm-12/bin/clang+0x410afe)
#43 0x000000000041090e main (/usr/lib/llvm-12/bin/clang+0x41090e)
#44 0x00007f7ffb7170b3 __libc_start_main
/build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:342:3
#45 0x000000000040dcbe _start (/usr/lib/llvm-12/bin/clang+0x40dcbe)
# Crash reproducer for Ubuntu clang version
12.0.0-++20210316012635+00441b8f4e5b-1~exp1~20210316123347.61
# Driver args: "--driver-mode=g++" "-D" "CMAKE_INTDIR=\"Debug\"" "-I"
"../tests/src" "-I" "_deps/ut-src/include" "-I" "../src" "-g" "-Wall" "-Wextra"
"-Wshadow" "-Wno-error=shadow" "-Wnon-virtual-dtor" "-Wold-style-cast"
"-Wcast-align" "-Wunused" "-Woverloaded-virtual" "-Wpedantic" "-Wconversion"
"-Wsign-conversion" "-Wnull-dereference" "-Wdouble-promotion" "-Wformat=2"
"-Werror" "-stdlib=libc++" "-std=c++20" "-MD" "-MT"
"tests/src/CMakeFiles/ToolsLibrary_random_test.dir/Debug/random_test.cpp.o"
"-MF"
"tests/src/CMakeFiles/ToolsLibrary_random_test.dir/Debug/random_test.cpp.o.d"
"-o"
"tests/src/CMakeFiles/ToolsLibrary_random_test.dir/Debug/random_test.cpp.o"
"-c" "../tests/src/random_test.cpp"
# Original command: "/usr/lib/llvm-12/bin/clang" "-cc1" "-triple"
"x86_64-pc-linux-gnu" "-emit-obj" "-mrelax-all" "--mrelax-relocations"
"-disable-free" "-disable-llvm-verifier" "-discard-value-names"
"-main-file-name" "random_test.cpp" "-mrelocation-model" "static"
"-mframe-pointer=all" "-fmath-errno" "-fno-rounding-math"
"-mconstructor-aliases" "-munwind-tables" "-target-cpu" "x86-64" "-tune-cpu"
"generic" "-fno-split-dwarf-inlining" "-debug-info-kind=limited"
"-dwarf-version=4" "-debugger-tuning=gdb" "-resource-dir"
"/usr/lib/llvm-12/lib/clang/12.0.0" "-dependency-file"
"tests/src/CMakeFiles/ToolsLibrary_random_test.dir/Debug/random_test.cpp.o.d"
"-MT"
"tests/src/CMakeFiles/ToolsLibrary_random_test.dir/Debug/random_test.cpp.o"
"-sys-header-deps" "-D" "CMAKE_INTDIR=\"Debug\"" "-I" "../tests/src" "-I"
"_deps/ut-src/include" "-I" "../src" "-internal-isystem"
"/usr/lib/llvm-12/bin/../include/c++/v1" "-internal-isystem"
"/usr/local/include" "-internal-isystem"
"/usr/lib/llvm-12/lib/clang/12.0.0/include" "-internal-externc-isystem"
"/usr/include/x86_64-linux-gnu" "-internal-externc-isystem" "/include"
"-internal-externc-isystem" "/usr/include" "-Wall" "-Wextra" "-Wshadow"
"-Wno-error=shadow" "-Wnon-virtual-dtor" "-Wold-style-cast" "-Wcast-align"
"-Wunused" "-Woverloaded-virtual" "-Wpedantic" "-Wconversion"
"-Wsign-conversion" "-Wnull-dereference" "-Wdouble-promotion" "-Wformat=2"
"-Werror" "-std=c++20" "-fdeprecated-macro" "-fdebug-compilation-dir"
"/mnt/d/dev/ToolsLibrary/build" "-ferror-limit" "19" "-fgnuc-version=4.2.1"
"-fno-implicit-modules" "-fcxx-exceptions" "-fexceptions" "-faddrsig" "-o"
"tests/src/CMakeFiles/ToolsLibrary_random_test.dir/Debug/random_test.cpp.o"
"-x" "c++" "../tests/src/random_test.cpp"
"/usr/lib/llvm-12/bin/clang" "-cc1" "-triple" "x86_64-pc-linux-gnu"
"-emit-obj" "-mrelax-all" "--mrelax-relocations" "-disable-free"
"-disable-llvm-verifier" "-discard-value-names" "-main-file-name"
"random_test.cpp" "-mrelocation-model" "static" "-mframe-pointer=all"
"-fmath-errno" "-fno-rounding-math" "-mconstructor-aliases" "-munwind-tables"
"-target-cpu" "x86-64" "-tune-cpu" "generic" "-fno-split-dwarf-inlining"
"-debug-info-kind=limited" "-dwarf-version=4" "-debugger-tuning=gdb"
"-sys-header-deps" "-D" "CMAKE_INTDIR=\"Debug\"" "-Wall" "-Wextra" "-Wshadow"
"-Wno-error=shadow" "-Wnon-virtual-dtor" "-Wold-style-cast" "-Wcast-align"
"-Wunused" "-Woverloaded-virtual" "-Wpedantic" "-Wconversion"
"-Wsign-conversion" "-Wnull-dereference" "-Wdouble-promotion" "-Wformat=2"
"-Werror" "-std=c++20" "-fdeprecated-macro" "-ferror-limit" "19"
"-fgnuc-version=4.2.1" "-fno-implicit-modules" "-fcxx-exceptions"
"-fexceptions" "-faddrsig" "-x" "c++" "random_test-7f79f0.cpp"
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