ICE in function_set_parameters, at rust/rust-gcc.cc:... | Rust-GCC/gccrs

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snippet:

//@compile-flags: -frust-incomplete-and-experimental-compiler-do-not-use
#![feature(no_core)]
#![no_core]
struct S;

impl S {
    fn f(Self: S) {}
}

Version information:

833d880c3431f45dbe426f29270b6e69e2289d2c

Command:
/home/matthias/vcs/github/gccrs/gccrs-build/gcc/crab1 -frust-incomplete-and-experimental-compiler-do-not-use

Program output

crab1: internal compiler error: in function_set_parameters, at rust/rust-gcc.cc:2310
0x322b647 internal_error(char const*, ...)
	../../gcc/diagnostic-global-context.cc:787
0xc6f3c7 fancy_abort(char const*, int, char const*)
	../../gcc/diagnostics/context.cc:1813
0x90cf70 Backend::function_set_parameters(tree_node*, std::vector<Bvariable*, std::allocator<Bvariable*> > const&)
	../../gcc/rust/rust-gcc.cc:2310
0x11c29b5 Rust::Compile::HIRCompileBase::compile_function(bool, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, tl::optional<Rust::HIR::SelfParam>&, std::vector<Rust::HIR::FunctionParam, std::allocator<Rust::HIR::FunctionParam> >&, Rust::HIR::FunctionQualifiers const&, Rust::HIR::Visibility&, std::vector<Rust::AST::Attribute, std::allocator<Rust::AST::Attribute> >&, unsigned long, Rust::HIR::BlockExpr*, Rust::Resolver::CanonicalPath const&, Rust::TyTy::FnType*)
	../../gcc/rust/backend/rust-compile-base.cc:786
0x11874cd Rust::Compile::CompileItem::visit(Rust::HIR::Function&)
	../../gcc/rust/backend/rust-compile-item.cc:234
0x1186c2a Rust::Compile::CompileInherentImplItem::Compile(Rust::HIR::ImplItem*, Rust::Compile::Context*, Rust::TyTy::BaseType*, unsigned long)
	../../gcc/rust/backend/rust-compile-implitem.h:36
0x1186c2a Rust::Compile::CompileItem::visit(Rust::HIR::ImplBlock&)
	../../gcc/rust/backend/rust-compile-item.cc:259
0xebcc4b Rust::Compile::CompileItem::compile(Rust::HIR::Item*, Rust::Compile::Context*, Rust::TyTy::BaseType*, unsigned long)
	../../gcc/rust/backend/rust-compile-item.h:37
0xebcc4b Rust::Compile::CompileCrate::go()
	../../gcc/rust/backend/rust-compile.cc:48
0xebcc4b Rust::Compile::CompileCrate::Compile(Rust::HIR::Crate&, Rust::Compile::Context*)
	../../gcc/rust/backend/rust-compile.cc:41
0xeb14d7 Rust::Session::compile_crate(char const*)
	../../gcc/rust/rust-session-manager.cc:852
/home/matthias/vcs/github/gccrs/gccrs-build/gcc/crab1 /tmp/icemaker_global_tempdir.IMsnqRt9kaHb/rustc_testrunner_tmpdir_reporting.rSW4mHirLIaZ/mvce.rs -o/tmp/icemaker_global_tempdir.IMsnqRt9kaHb/rustc_testrunner_tmpdir_reporting.rSW4mHirLIaZ/binaryname -frust-incomplete-and-experimental-compiler-do-not-use
Please submit a full bug report, with preprocessed source (by using -freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

Start with the Rust reproducer in the issue and run it with -frust-incomplete-and-experimental-compiler-do-not-use to reproduce the ICE. Read Backend::function_set_parameters in gcc/rust/rust-gcc.cc around line 2310, then trace its call from gcc/rust/rust-compile-base.cc:786. Done means this input no longer triggers an internal compiler error.

Written by the indexing model from the issue text.

ICE in function_set_parameters, at rust/rust-gcc.cc:2310

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