| Issue |
175853
|
| Summary |
[HLSL] Matrix splats requiring implicit casting of initializer scalar data type encounters an assertion error
|
| Labels |
HLSL
|
| Assignees |
|
| Reporter |
Icohedron
|
Matrix splats where the initializer scalar is of a data type differing from that of the matrix element type causes an assertion error to occur.
Examples: https://hlsl.godbolt.org/z/oodaTzWEa
Each of the following function declarations encounter the same assertion error when compiled.
```hlsl
export int4x4 fn0(bool b) {
return b;
}
export int4x4 fn1(float f) {
return f;
}
export float4x4 fn2(int i) {
return i;
}
export float4x4 fn3(bool b) {
return b;
}
```
Assertion error:
```
clang: /root/llvm-project/llvm/tools/clang/lib/AST/Type.cpp:2366: clang::Type::ScalarTypeKind clang::Type::getScalarTypeKind() const: Assertion `isScalarType()' 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 --driver-mode=dxc -Zi -Qembed_debug -Fc /app/output.s -fcolor-diagnostics -fno-crash-diagnostics -T lib_6_3 <source>
1. <source>:2:13: current parser token ';'
2. <source>:1:27: parsing function body 'fn0'
3. <source>:1:27: in compound statement ('{}')
#0 0x00000000042fea18 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x42fea18)
#1 0x00000000042fbe54 llvm::sys::CleanupOnSignal(unsigned long) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x42fbe54)
#2 0x000000000423e748 CrashRecoverySignalHandler(int) CrashRecoveryContext.cpp:0:0
#3 0x0000704af0642520 (/lib/x86_64-linux-gnu/libc.so.6+0x42520)
#4 0x0000704af06969fc pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x969fc)
#5 0x0000704af0642476 gsignal (/lib/x86_64-linux-gnu/libc.so.6+0x42476)
#6 0x0000704af06287f3 abort (/lib/x86_64-linux-gnu/libc.so.6+0x287f3)
#7 0x0000704af062871b (/lib/x86_64-linux-gnu/libc.so.6+0x2871b)
#8 0x0000704af0639e96 (/lib/x86_64-linux-gnu/libc.so.6+0x39e96)
#9 0x000000000818de3e clang::Type::getScalarTypeKind() const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x818de3e)
#10 0x0000000006f624b0 clang::Sema::PrepareScalarCast(clang::ActionResult<clang::Expr*, true>&, clang::QualType) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6f624b0)
#11 0x0000000006f62dfc clang::Sema::prepareMatrixSplat(clang::QualType, clang::Expr*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6f62dfc)
#12 0x000000000708127c clang::Sema::PerformImplicitConversion(clang::Expr*, clang::QualType, clang::StandardConversionSequence const&, clang::AssignmentAction, clang::CheckedConversionKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x708127c)
#13 0x000000000708264a clang::Sema::PerformImplicitConversion(clang::Expr*, clang::QualType, clang::ImplicitConversionSequence const&, clang::AssignmentAction, clang::CheckedConversionKind) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x708264a)
#14 0x00000000071127de clang::InitializationSequence::Perform(clang::Sema&, clang::InitializedEntity const&, clang::InitializationKind const&, llvm::MutableArrayRef<clang::Expr*>, clang::QualType*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x71127de)
#15 0x0000000007115692 clang::Sema::PerformCopyInitialization(clang::InitializedEntity const&, clang::SourceLocation, clang::ActionResult<clang::Expr*, true>, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x7115692)
#16 0x000000000739cba4 clang::Sema::PerformMoveOrCopyInitialization(clang::InitializedEntity const&, clang::Sema::NamedReturnInfo const&, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x739cba4)
#17 0x00000000073b2bd4 clang::Sema::BuildReturnStmt(clang::SourceLocation, clang::Expr*, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x73b2bd4)
#18 0x00000000073b37c7 clang::Sema::ActOnReturnStmt(clang::SourceLocation, clang::Expr*, clang::Scope*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x73b37c7)
#19 0x0000000006b486aa clang::Parser::ParseReturnStatement() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6b486aa)
#20 0x0000000006b4caed clang::Parser::ParseStatementOrDeclarationAfterAttributes(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::ParsedAttributes&, clang::ParsedAttributes&, clang::LabelDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6b4caed)
#21 0x0000000006b4da06 clang::Parser::ParseStatementOrDeclaration(llvm::SmallVector<clang::Stmt*, 24u>&, clang::Parser::ParsedStmtContext, clang::SourceLocation*, clang::LabelDecl*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6b4da06)
#22 0x0000000006b5634e clang::Parser::ParseCompoundStatementBody(bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6b5634e)
#23 0x0000000006b56b9a clang::Parser::ParseFunctionStatementBody(clang::Decl*, clang::Parser::ParseScope&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6b56b9a)
#24 0x0000000006a5cfeb clang::Parser::ParseFunctionDefinition(clang::ParsingDeclarator&, clang::Parser::ParsedTemplateInfo const&, clang::Parser::LateParsedAttrList*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a5cfeb)
#25 0x0000000006a9345d clang::Parser::ParseDeclGroup(clang::ParsingDeclSpec&, clang::DeclaratorContext, clang::ParsedAttributes&, clang::Parser::ParsedTemplateInfo&, clang::SourceLocation*, clang::Parser::ForRangeInit*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a9345d)
#26 0x0000000006a5014b clang::Parser::ParseDeclOrFunctionDefInternal(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec&, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a5014b)
#27 0x0000000006a5093f clang::Parser::ParseDeclarationOrFunctionDefinition(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*, clang::AccessSpecifier) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a5093f)
#28 0x0000000006a5876a clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a5876a)
#29 0x0000000006ab45ac clang::Parser::ParseExportDeclaration() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6ab45ac)
#30 0x0000000006a58c46 clang::Parser::ParseExternalDeclaration(clang::ParsedAttributes&, clang::ParsedAttributes&, clang::ParsingDeclSpec*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a58c46)
#31 0x0000000006a59705 clang::Parser::ParseTopLevelDecl(clang::OpaquePtr<clang::DeclGroupRef>&, clang::Sema::ModuleImportState&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a59705)
#32 0x0000000006a3a78a clang::ParseAST(clang::Sema&, bool, bool) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x6a3a78a)
#33 0x0000000004c66488 clang::CodeGenAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4c66488)
#34 0x0000000004f834fd clang::HLSLFrontendAction::ExecuteAction() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f834fd)
#35 0x0000000004f60135 clang::FrontendAction::Execute() (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4f60135)
#36 0x0000000004edff0e clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4edff0e)
#37 0x000000000505a7cd clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x505a7cd)
#38 0x0000000000dce92e cc1_main(llvm::ArrayRef<char const*>, char const*, void*) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xdce92e)
#39 0x0000000000dc52fa ExecuteCC1Tool(llvm::SmallVectorImpl<char const*>&, llvm::ToolContext const&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>) driver.cpp:0:0
#40 0x0000000000dc547d int llvm::function_ref<int (llvm::SmallVectorImpl<char const*>&)>::callback_fn<clang_main(int, char**, llvm::ToolContext const&)::'lambda'(llvm::SmallVectorImpl<char const*>&)>(long, llvm::SmallVectorImpl<char const*>&) driver.cpp:0:0
#41 0x0000000004cd96e9 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
#42 0x000000000423ebe4 llvm::CrashRecoveryContext::RunSafely(llvm::function_ref<void ()>) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x423ebe4)
#43 0x0000000004cd9cff 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
#44 0x0000000004c9a692 clang::driver::Compilation::ExecuteCommand(clang::driver::Command const&, clang::driver::Command const*&, bool) const (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4c9a692)
#45 0x0000000004c9b63e 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+0x4c9b63e)
#46 0x0000000004ca2a95 clang::driver::Driver::ExecuteCompilation(clang::driver::Compilation&, llvm::SmallVectorImpl<std::pair<int, clang::driver::Command const*>>&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0x4ca2a95)
#47 0x0000000000dcaca1 clang_main(int, char**, llvm::ToolContext const&) (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xdcaca1)
#48 0x0000000000c88434 main (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xc88434)
#49 0x0000704af0629d90 (/lib/x86_64-linux-gnu/libc.so.6+0x29d90)
#50 0x0000704af0629e40 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x29e40)
#51 0x0000000000dc4d95 _start (/opt/compiler-explorer/clang-assertions-trunk/bin/clang+0xdc4d95)
clang: error: clang frontend command failed with exit code 134 (use -v to see invocation)
Compiler returned: 134
```
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