luporl wrote:
I have been able to reproduce the issue on ARM hardware and collected the info
below.
This was with a release build. I'll check if I can get more details with a
debug build.
```
Program received signal SIGSEGV, Segmentation fault.
memset () at ../sysdeps/arm/memset.S:51
51 ../sysdeps/arm/memset.S: No such file or directory.
(gdb) bt
#0 memset () at ../sysdeps/arm/memset.S:51
#1 0x05ad8eec in
clang::interp::DynamicAllocator::allocate(clang::interp::Descriptor const*,
unsigned int) [clone .part.0] ()
#2 0x05b2027a in clang::interp::Interpret(clang::interp::InterpState&,
clang::APValue&) ()
#3 0x05ac96fe in clang::interp::Call(clang::interp::InterpState&,
clang::interp::CodePtr, clang::interp::Function const*, unsigned int) ()
#4 0x05cd1dcc in
clang::interp::Compiler<clang::interp::EvalEmitter>::VisitCallExpr(clang::CallExpr
const*) ()
#5 0x05cd0670 in
clang::interp::Compiler<clang::interp::EvalEmitter>::visit(clang::Expr const*)
()
#6 0x05cdbbda in
clang::interp::Compiler<clang::interp::EvalEmitter>::VisitCastExpr(clang::CastExpr
const*) ()
#7 0x05cd0670 in
clang::interp::Compiler<clang::interp::EvalEmitter>::visit(clang::Expr const*)
()
#8 0x05cd541a in
clang::interp::Compiler<clang::interp::EvalEmitter>::visitExpr(clang::Expr
const*) ()
#9 0x05a26b64 in clang::interp::EvalEmitter::interpretExpr(clang::Expr const*,
bool) ()
#10 0x05a20c58 in
clang::interp::Context::evaluateAsRValue(clang::interp::State&, clang::Expr
const*, clang::APValue&) ()
#11 0x059ca096 in EvaluateAsRValue((anonymous namespace)::EvalInfo&,
clang::Expr const*, clang::APValue&) ()
#12 0x059cac2c in clang::Expr::isCXX11ConstantExpr(clang::ASTContext const&,
clang::APValue*, clang::SourceLocation*) const ()
#13 0x059caeb2 in EvaluateCPlusPlus11IntegralConstantExpr(clang::ASTContext
const&, clang::Expr const*, llvm::APSInt*, clang::SourceLocation*) ()
#14 0x059cceb8 in clang::Expr::getIntegerConstantExpr(clang::ASTContext const&,
clang::SourceLocation*) const ()
#15 0x04d93f24 in AnalyzeImplicitConversions(clang::Sema&, clang::Expr*,
clang::SourceLocation, bool) [clone .constprop.0] ()
#16 0x04d94d3c in clang::Sema::CheckCompletedExpr(clang::Expr*,
clang::SourceLocation, bool) ()
#17 0x050d7ec4 in clang::Sema::ActOnFinishFullExpr(clang::Expr*,
clang::SourceLocation, bool, bool, bool) ()
#18 0x04f20652 in
clang::Sema::BuildStaticAssertDeclaration(clang::SourceLocation, clang::Expr*,
clang::Expr*, clang::SourceLocation, bool) ()
#19 0x04f20b78 in
clang::Sema::ActOnStaticAssertDeclaration(clang::SourceLocation, clang::Expr*,
clang::Expr*, clang::SourceLocation) ()
#20 0x04c37dba in
clang::Parser::ParseStaticAssertDeclaration(clang::SourceLocation&) ()
#21 0x04c2d022 in clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&,
clang::SourceLocation*) ()
#22 0x04c00bb0 in
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&,
clang::ParsedAttributes&, clang::ParsingDeclSpec*) ()
#23 0x04c3ddae in
clang::Parser::ParseInnerNamespace(llvm::SmallVector<clang::Parser::InnerNamespaceInfo,
4u> const&, unsigned int, clang::SourceLocation&, clang::ParsedAttributes&,
clang::BalancedDelimiterTracker&) ()
#24 0x04c403d0 in clang::Parser::ParseNamespace(clang::DeclaratorContext,
clang::SourceLocation&, clang::SourceLocation) ()
#25 0x04c2d0d0 in clang::Parser::ParseDeclaration(clang::DeclaratorContext,
clang::SourceLocation&, clang::ParsedAttributes&, clang::ParsedAttributes&,
clang::SourceLocation*) ()
#26 0x04c00bb0 in
clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&,
clang::ParsedAttributes&, clang::ParsingDeclSpec*) ()
#27 0x04c01594 in
clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&,
clang::Sema::ModuleImportState&) ()
#28 0x04bf63e0 in clang::ParseAST(clang::Sema&, bool, bool) ()
#29 0x0396e5ea in clang::FrontendAction::Execute() ()
#30 0x03916b90 in
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) ()
#31 0x03a0b2b6 in clang::ExecuteCompilerInvocation(clang::CompilerInstance*) ()
#32 0x00e14120 in cc1_main(llvm::ArrayRef<char const*>, char const*, void*) ()
#33 0x00e0f402 in ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&,
llvm::ToolContext const&) ()
#34 0x00e117e6 in clang_main(int, char**, llvm::ToolContext const&) ()
#35 0x00d68a5e in main ()
```
```
0xf7cac25c <+60>: subscs r2, r2, #8
0xf7cac260 <+64>: stmiacs r3!, {r1, r12}
0xf7cac264 <+68>: subscs r2, r2, #8
=> 0xf7cac268 <+72>: stmiacs r3!, {r1, r12}
0xf7cac26c <+76>: bcs 0xf7cac24c <memset+44>
0xf7cac270 <+80>: and r2, r2, #7
0xf7cac274 <+84>: subs r2, r2, #1
End of assembler dump.
(gdb) p/x $r3
$1 = 0x9fda000
(gdb) p/x $r1
$2 = 0x0
(gdb) p/x $r12
$3 = 0x0
```
https://github.com/llvm/llvm-project/pull/70306
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