bors 8ecaad85f6 Auto merge of #105919 - uweigand:s390x-stack-overflow, r=Nilstrieb ... Fix stack overflow in recursive AST walk in early lint The src/test/ui/issues/issue-74564-if-expr-stack-overflow.rs test case added to verify https://github.com/rust-lang/rust/issues/74564 still crashes with a stack overflow on s390x-ibm-linux. Symptom is a very deep recursion in compiler/rustc_lint/src/early.rs: fn visit_expr(&mut self, e: &'a ast::Expr) { self.with_lint_attrs(e.id, &e.attrs, |cx| { lint_callback!(cx, check_expr, e); ast_visit::walk_expr(cx, e); }) } (where walk_expr recursively calls back into visit_expr). The crash happens at a nesting depth of over 17000 stack frames when using the default 8 MB stack size on s390x. This patch fixes the problem by adding a ensure_sufficient_stack call to the with_lint_attrs routine (which also should take care of all the other mutually recursive visitors here). Fixes part of https://github.com/rust-lang/rust/issues/105383.		2023-01-11 08:50:38 +00:00
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src	Auto merge of #105919 - uweigand:s390x-stack-overflow, r=Nilstrieb	2023-01-11 08:50:38 +00:00
Cargo.toml