ICE: segfault when passing slice to main
Open
@philberty is already working on this.
Since Mar 28, 2025.
bug
- Dominant language
- C++
- Stars
- 2.9k
- Forks
- 231
- Avg merge
- 20h 2m
- Merged PRs (30d)
- 66
Description
auto-reduced (treereduce-rust):
fn main(&ref mut s: &[i32]) {}
original:
#[must_use = "iterators are lazy and do nothing unless consumed"]
//~^ ERROR an unknown tool name found in scoped lint: `foo::bar`
//~| ERROR an unknown tool name found in scoped lint: `foo::bar`
//~| ERROR an unknown tool name found in scoped lint: `foo::bar`
fn main(&ref mut s: &[i32]) {}
Version information:
4019d70517af4d6d95650eb2ee3a793c57cdbe2b
Command:
crab1 -Warray-bounds -mtune=generic -march=x86-64 -O0 -L/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/../lib64 -frust-incomplete-and-experimental-compiler-do-not-use
Program output
crab1: internal compiler error: Segmentation fault
0x1702eaf crash_signal
../../gcc/toplev.cc:319
0x1a94650 tree_class_check(tree_node*, tree_code_class, char const*, int, char const*)
../../gcc/tree.h:3766
0x1a94650 build_pointer_type_for_mode(tree_node*, machine_mode, bool)
../../gcc/tree.cc:6966
0x128d847 build_fold_addr_expr_loc(unsigned int, tree_node*)
../../gcc/fold-const.cc:9442
0xfd0acd Rust::Compile::CompilePatternBindings::visit(Rust::HIR::IdentifierPattern&)
../../gcc/rust/backend/rust-compile-pattern.cc:615
0xfcefc3 ???
../../gcc/rust/backend/rust-compile-pattern.h:83
0xfd2235 ???
../../gcc/rust/backend/rust-compile-fnparam.h:41
0xfd1d12 Rust::Compile::CompileFnParam::compile(Rust::Compile::Context*, tree_node*, Rust::HIR::FunctionParam&, tree_node*, unsigned int)
../../gcc/rust/backend/rust-compile-fnparam.cc:38
0x10106bf Rust::Compile::HIRCompileBase::compile_function(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, 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 int, Rust::HIR::BlockExpr*, Rust::Resolver::CanonicalPath const&, Rust::TyTy::FnType*)
../../gcc/rust/backend/rust-compile-base.cc:740
0xfd882d Rust::Compile::CompileItem::visit(Rust::HIR::Function&)
../../gcc/rust/backend/rust-compile-item.cc:256
0xc64a14 Rust::Compile::CompileItem::compile(Rust::HIR::Item*, Rust::Compile::Context*, Rust::TyTy::BaseType*, unsigned int)
../../gcc/rust/backend/rust-compile-item.h:37
0xc64a14 Rust::Compile::CompileCrate::go()
../../gcc/rust/backend/rust-compile.cc:48
0xc64afb Rust::Compile::CompileCrate::Compile(Rust::HIR::Crate&, Rust::Compile::Context*)
../../gcc/rust/backend/rust-compile.cc:41
0xc5c50b Rust::Session::compile_crate(char const*)
../../gcc/rust/rust-session-manager.cc:733
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.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.