Type parameter pack crash while attempting to create resultBuilder with variadic tuple element

[LuizZak]

Description

No response

Reproduction

protocol Element {
}

struct TupleElement<each T: Element>: Element {
    var t: (repeat each T)
}

@resultBuilder
struct ElementBuilder {
    static func buildBlock<each T: Element>(_ value: repeat each T) -> TupleElement<repeat each T> {
        return TupleElement(t: repeat each value)
    }
}

Stack dump

Stack dump:
0.      Program arguments: /home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend -frontend -interpret tuple-pack-bonanza.swift -disable-objc-interop -color-diagnostics -empty-abi-descriptor -resource-dir /home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/lib/swift -module-name main -plugin-path /home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/lib/swift/host/plugins -plugin-path /home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/local/lib/swift/host/plugins
1.      Swift version 6.0 (swift-6.0-RELEASE)
2.      Compiling with effective version 5.10
3.      While evaluating request TypeCheckSourceFileRequest(source_file "tuple-pack-bonanza.swift")
4.      While evaluating request TypeCheckFunctionBodyRequest(main.(file)[email protected]:10:17)
5.      While type-checking statement at [tuple-pack-bonanza.swift:10:100 - line:12:5] RangeText="{
        return TupleElement(t: repeat each value)
    "
6.      While type-checking statement at [tuple-pack-bonanza.swift:11:9 - line:11:49] RangeText="return TupleElement(t: repeat each value"
7.      While type-checking-target starting at tuple-pack-bonanza.swift:11:16
 #0 0x000055d221d7c377 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x7360377)
 #1 0x000055d221d7a30e llvm::sys::RunSignalHandlers() (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x735e30e)
 #2 0x000055d221d7c9ef SignalHandler(int) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x73609ef)
 #3 0x00007f899d325420 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x14420)
 #4 0x000055d21d187a94 (anonymous namespace)::ExprRewriter::coerceToType(swift::Expr*, swift::Type, swift::constraints::ConstraintLocatorBuilder) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x276ba94)
 #5 0x000055d21d19efd2 (anonymous namespace)::ExprRewriter::coerceCallArguments(swift::ArgumentList*, swift::AnyFunctionType*, swift::ConcreteDeclRef, swift::ApplyExpr*, swift::constraints::ConstraintLocatorBuilder, llvm::ArrayRef<swift::AppliedPropertyWrapper>) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2782fd2)
 #6 0x000055d21d1a769e (anonymous namespace)::ExprRewriter::finishApply(swift::ApplyExpr*, swift::Type, swift::constraints::ConstraintLocatorBuilder, swift::constraints::ConstraintLocatorBuilder) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x278b69e)
 #7 0x000055d21d1a846f (anonymous namespace)::ExprRewriter::finishApply(swift::ApplyExpr*, swift::Type, swift::constraints::ConstraintLocatorBuilder, swift::constraints::ConstraintLocatorBuilder) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x278c46f)
 #8 0x000055d21d1ada24 (anonymous namespace)::ExprRewriter::visitApplyExpr(swift::ApplyExpr*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2791a24)
 #9 0x000055d21d18ec32 (anonymous namespace)::ExprRewriter::walkToExprPost(swift::Expr*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2772c32)
#10 0x000055d21d18bf70 (anonymous namespace)::ExprWalker::walkToExprPost(swift::Expr*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x276ff70)
#11 0x000055d21d86289b swift::Expr::walk(swift::ASTWalker&) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2e4689b)
#12 0x000055d21d18481d (anonymous namespace)::ExprWalker::rewriteTarget(swift::constraints::SyntacticElementTarget) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x276881d)
#13 0x000055d21d1842d2 swift::constraints::ConstraintSystem::applySolution(swift::constraints::Solution&, swift::constraints::SyntacticElementTarget) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x27682d2)
#14 0x000055d21d3adb26 swift::TypeChecker::typeCheckTarget(swift::constraints::SyntacticElementTarget&, swift::optionset::OptionSet<swift::TypeCheckExprFlags, unsigned int>) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2991b26)
#15 0x000055d21d4e318e swift::ASTVisitor<(anonymous namespace)::StmtChecker, void, swift::Stmt*, void, void, void, void>::visit(swift::Stmt*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac718e)
#16 0x000055d21d4e1ddc bool (anonymous namespace)::StmtChecker::typeCheckStmt<swift::Stmt>(swift::Stmt*&) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac5ddc)
#17 0x000055d21d4de654 (anonymous namespace)::StmtChecker::typeCheckASTNode(swift::ASTNode&) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac2654)
#18 0x000055d21d4e1f1c swift::ASTVisitor<(anonymous namespace)::StmtChecker, void, swift::Stmt*, void, void, void, void>::visit(swift::Stmt*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac5f1c)
#19 0x000055d21d4e052c bool (anonymous namespace)::StmtChecker::typeCheckStmt<swift::BraceStmt>(swift::BraceStmt*&) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac452c)
#20 0x000055d21d4dfbe3 (anonymous namespace)::StmtChecker::typeCheckBody(swift::BraceStmt*&) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac3be3)
#21 0x000055d21d4df8c4 swift::TypeCheckFunctionBodyRequest::evaluate(swift::Evaluator&, swift::AbstractFunctionDecl*) const (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2ac38c4)
#22 0x000055d21d956a77 swift::TypeCheckFunctionBodyRequest::OutputType swift::Evaluator::getResultUncached<swift::TypeCheckFunctionBodyRequest, swift::TypeCheckFunctionBodyRequest::OutputType swift::evaluateOrDefault<swift::TypeCheckFunctionBodyRequest>(swift::Evaluator&, swift::TypeCheckFunctionBodyRequest, swift::TypeCheckFunctionBodyRequest::OutputType)::'lambda'()>(swift::TypeCheckFunctionBodyRequest const&, swift::TypeCheckFunctionBodyRequest::OutputType swift::evaluateOrDefault<swift::TypeCheckFunctionBodyRequest>(swift::Evaluator&, swift::TypeCheckFunctionBodyRequest, swift::TypeCheckFunctionBodyRequest::OutputType)::'lambda'()) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2f3aa77)
#23 0x000055d21d8d1413 swift::AbstractFunctionDecl::getTypecheckedBody() const (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2eb5413)
#24 0x000055d21d9f6329 swift::SourceFile::typeCheckDelayedFunctions() (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2fda329)
#25 0x000055d21d523f98 swift::TypeCheckSourceFileRequest::evaluate(swift::Evaluator&, swift::SourceFile*) const (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2b07f98)
#26 0x000055d21d5260dd swift::TypeCheckSourceFileRequest::OutputType swift::Evaluator::getResultUncached<swift::TypeCheckSourceFileRequest, swift::TypeCheckSourceFileRequest::OutputType swift::evaluateOrDefault<swift::TypeCheckSourceFileRequest>(swift::Evaluator&, swift::TypeCheckSourceFileRequest, swift::TypeCheckSourceFileRequest::OutputType)::'lambda'()>(swift::TypeCheckSourceFileRequest const&, swift::TypeCheckSourceFileRequest::OutputType swift::evaluateOrDefault<swift::TypeCheckSourceFileRequest>(swift::Evaluator&, swift::TypeCheckSourceFileRequest, swift::TypeCheckSourceFileRequest::OutputType)::'lambda'()) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2b0a0dd)
#27 0x000055d21d523e95 swift::performTypeChecking(swift::SourceFile&) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x2b07e95)
#28 0x000055d21c36698c swift::CompilerInstance::performSema() (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x194a98c)
#29 0x000055d21c0de05f withSemanticAnalysis(swift::CompilerInstance&, swift::FrontendObserver*, llvm::function_ref<bool (swift::CompilerInstance&)>, bool) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x16c205f)
#30 0x000055d21c0d39ea performCompile(swift::CompilerInstance&, int&, swift::FrontendObserver*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x16b79ea)
#31 0x000055d21c0d1bff swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x16b5bff)
#32 0x000055d21bea84fd swift::mainEntry(int, char const**) (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x148c4fd)
#33 0x00007f899b781083 __libc_start_main /build/glibc-LcI20x/glibc-2.31/csu/../csu/libc-start.c:342:3
#34 0x000055d21bea6cae _start (/home/luiz/.local/share/swiftly/toolchains/6.0.0/usr/bin/swift-frontend+0x148acae)

💣 Program crashed: Bad pointer dereference at 0x0000000000000018

Thread 0 "swift-frontend" crashed:

0 0x000055d21d187a94 (anonymous namespace)::ExprRewriter::coerceToType(swift::Expr*, swift::Type, swift::constraints::ConstraintLocatorBuilder) + 3972 in swift-frontend

Expected behavior

Expected either to compile successfully or raise a semantic error of some sort.

Environment

Swift version 6.0 (swift-6.0-RELEASE)
Target: x86_64-unknown-linux-gnu

Additional information

No response