[llvm-bugs] [Bug 50979] New: ICE: {anonymous}::LValue::setFrom(clang::ASTContext&, const clang::APValue&): Assertion `V.isLValue() && "Setting LValue from a non-LValue?"' failed.

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Jul 3 23:15:04 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=50979

            Bug ID: 50979
           Summary: ICE: {anonymous}::LValue::setFrom(clang::ASTContext&,
                    const clang::APValue&): Assertion `V.isLValue() &&
                    "Setting LValue from a non-LValue?"' failed.
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cnsun at uwaterloo.ca
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

$ clang-trunk -v
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
6b0d266036f73f5ee9556d211a7d0946091ff3b2)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64

$ cat mutant.c
x() { &&e - &&b < x; }

$ clang-trunk -w mutant.c
clang-13:
/tmp/tmp.OKn6kNiY8c-clang-builder/llvm-project/clang/lib/AST/ExprConstant.cpp:1576:
void {anonymous}::LValue::setFrom(clang::ASTContext&, const clang::APValue&):
Assertion `V.isLValue() && "Setting LValue from a non-LValue?"' 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: /scratch/software/clang-trunk/bin/clang-13 -cc1
-triple x86_64-unknown-linux-gnu -emit-obj -mrelax-all --mrelax-relocations
-disable-free -main-file-name mutant.c -mrelocation-model static
-mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases
-munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb
-fcoverage-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210629_185746_0127/delta/perses_result
-resource-dir /scratch/software/clang-trunk/lib/clang/13.0.0 -c-isystem .
-c-isystem /usr/local/include/cmsith -internal-isystem
/scratch/software/clang-trunk/lib/clang/13.0.0/include -internal-isystem
/usr/local/include -internal-isystem
/usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include
-internal-externc-isystem /usr/include/x86_64-linux-gnu
-internal-externc-isystem /include -internal-externc-isystem /usr/include -w
-fdebug-compilation-dir=/scratch/cnsun/workspace/perses-fuzzer/default_c_finding_folder/crash_20210629_185746_0127/delta/perses_result
-ferror-limit 19 -fgnuc-version=4.2.1 -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1
-o /tmp/mutant-d1a43a.o -x c mutant.c
1.      mutant.c:1:22: current parser token '}'
2.      mutant.c:1:5: parsing function body 'x'
3.      mutant.c:1:5: in compound statement ('{}')
 #0 0x0000562559cc1714 PrintStackTraceSignalHandler(void*) Signals.cpp:0:0
 #1 0x0000562559cbeece SignalHandler(int) Signals.cpp:0:0
 #2 0x00007f2d7ba993c0 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x153c0)
 #3 0x00007f2d7b53818b raise
/build/glibc-ZN95T4/glibc-2.31/signal/../sysdeps/unix/sysv/linux/raise.c:51:1
 #4 0x00007f2d7b517859 abort /build/glibc-ZN95T4/glibc-2.31/stdlib/abort.c:81:7
 #5 0x00007f2d7b517729 get_sysdep_segment_value
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:509:8
 #6 0x00007f2d7b517729 _nl_load_domain
/build/glibc-ZN95T4/glibc-2.31/intl/loadmsgcat.c:970:34
 #7 0x00007f2d7b528f36 (/lib/x86_64-linux-gnu/libc.so.6+0x36f36)
 #8 0x000056255cda1835 (/scratch/software/clang-trunk/bin/clang-13+0x6a75835)
 #9 0x000056255cdb2eab (anonymous
namespace)::LValue::setFrom(clang::ASTContext&, clang::APValue const&)
ExprConstant.cpp:0:0
#10 0x000056255ce1f2f2 (anonymous
namespace)::PointerExprEvaluator::VisitCastExpr(clang::CastExpr const*)
ExprConstant.cpp:0:0
#11 0x000056255cdee0b5 clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous
namespace)::PointerExprEvaluator, bool>::Visit(clang::Stmt const*)
ExprConstant.cpp:0:0
#12 0x000056255cdef346 EvaluatePointer(clang::Expr const*, (anonymous
namespace)::LValue&, (anonymous namespace)::EvalInfo&, bool)
ExprConstant.cpp:0:0
#13 0x000056255ce24bf0 (anonymous
namespace)::IntExprEvaluator::VisitBinaryOperator(clang::BinaryOperator const*)
ExprConstant.cpp:0:0
#14 0x000056255cde1115 clang::StmtVisitorBase<llvm::make_const_ptr, (anonymous
namespace)::IntExprEvaluator, bool>::Visit(clang::Stmt const*)
ExprConstant.cpp:0:0
#15 0x000056255cdcf86e Evaluate(clang::APValue&, (anonymous
namespace)::EvalInfo&, clang::Expr const*) ExprConstant.cpp:0:0
#16 0x000056255cdd9809 EvaluateAsRValue((anonymous namespace)::EvalInfo&,
clang::Expr const*, clang::APValue&) ExprConstant.cpp:0:0
#17 0x000056255cddb012 clang::Expr::EvaluateForOverflow(clang::ASTContext
const&) const (/scratch/software/clang-trunk/bin/clang-13+0x6aaf012)
#18 0x000056255c0738a5 clang::Sema::CheckForIntOverflow(clang::Expr*)
(/scratch/software/clang-trunk/bin/clang-13+0x5d478a5)
#19 0x000056255c0c30f1 clang::Sema::CheckCompletedExpr(clang::Expr*,
clang::SourceLocation, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5d970f1)
#20 0x000056255c465cb2 clang::Sema::ActOnFinishFullExpr(clang::Expr*,
clang::SourceLocation, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x6139cb2)
#21 0x000056255c6bd42b
clang::Sema::ActOnExprStmt(clang::ActionResult<clang::Expr*, true>, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x639142b)
#22 0x000056255bfb3723
clang::Parser::ParseExprStatement(clang::Parser::ParsedStmtContext)
(/scratch/software/clang-trunk/bin/clang-13+0x5c87723)
#23 0x000056255bfaac42
clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*,
clang::ParsedAttributesWithRange&)
(/scratch/software/clang-trunk/bin/clang-13+0x5c7ec42)
#24 0x000056255bfab62a
clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*,
32u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*)
(/scratch/software/clang-trunk/bin/clang-13+0x5c7f62a)
#25 0x000056255bfac5a9 clang::Parser::ParseCompoundStatementBody(bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5c805a9)
#26 0x000056255bfaebba clang::Parser::ParseFunctionStatementBody(clang::Decl*,
clang::Parser::ParseScope&)
(/scratch/software/clang-trunk/bin/clang-13+0x5c82bba)
#27 0x000056255bef4e52
clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&,
clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*)
(/scratch/software/clang-trunk/bin/clang-13+0x5bc8e52)
#28 0x000056255bf217b0 clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&,
clang::DeclaratorContext, clang::SourceLocation*, clang::Parser::ForRangeInit*)
(/scratch/software/clang-trunk/bin/clang-13+0x5bf57b0)
#29 0x000056255beef636
clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec&, clang::AccessSpecifier)
(/scratch/software/clang-trunk/bin/clang-13+0x5bc3636)
#30 0x000056255beefc21
clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*, clang::AccessSpecifier) (.part.0) Parser.cpp:0:0
#31 0x000056255bef6447
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributesWithRange&,
clang::ParsingDeclSpec*) (/scratch/software/clang-trunk/bin/clang-13+0x5bca447)
#32 0x000056255bef79de
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5bcb9de)
#33 0x000056255bef7d89
clang::Parser::ParseFirstTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&)
(/scratch/software/clang-trunk/bin/clang-13+0x5bcbd89)
#34 0x000056255beea1da clang::ParseAST(clang::Sema&, bool, bool)
(/scratch/software/clang-trunk/bin/clang-13+0x5bbe1da)
#35 0x000056255ae312a8 clang::CodeGenAction::ExecuteAction()
(/scratch/software/clang-trunk/bin/clang-13+0x4b052a8)
#36 0x000056255a6d4399 clang::FrontendAction::Execute()
(/scratch/software/clang-trunk/bin/clang-13+0x43a8399)
#37 0x000056255a6673b6
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&)
(/scratch/software/clang-trunk/bin/clang-13+0x433b3b6)
#38 0x000056255a7b20c0
clang::ExecuteCompilerInvocation(clang::CompilerInstance*)
(/scratch/software/clang-trunk/bin/clang-13+0x44860c0)
#39 0x00005625575a4846 cc1_main(llvm::ArrayRef<char const*>, char const*,
void*) (/scratch/software/clang-trunk/bin/clang-13+0x1278846)
#40 0x00005625575a0b88 ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&)
driver.cpp:0:0
#41 0x00005625574ce156 main
(/scratch/software/clang-trunk/bin/clang-13+0x11a2156)
#42 0x00007f2d7b5190b3 __libc_start_main
/build/glibc-ZN95T4/glibc-2.31/csu/../csu/libc-start.c:342:3
#43 0x00005625575a06fe _start
(/scratch/software/clang-trunk/bin/clang-13+0x12746fe)
clang-13: error: unable to execute command: Aborted (core dumped)
clang-13: error: clang frontend command failed due to signal (use -v to see
invocation)
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
6b0d266036f73f5ee9556d211a7d0946091ff3b2)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
clang-13: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/mutant-682b7f.c
clang-13: note: diagnostic msg: /tmp/mutant-682b7f.sh
clang-13: note: diagnostic msg:

********************

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