From f6859b07967e51de2620566340cfa8c4b1a7c4ab Mon Sep 17 00:00:00 2001 From: "Felix S. Klock II" Date: Wed, 12 Oct 2016 19:29:50 +0200 Subject: Some tests to check that lifetime parametric fn's do not trip up LLVM. --- .../run-pass/issue-36744-bitcast-args-if-needed.rs | 32 ++++++++++++++++++++++ src/test/run-pass/issue-36744-without-calls.rs | 22 +++++++++++++++ 2 files changed, 54 insertions(+) create mode 100644 src/test/run-pass/issue-36744-bitcast-args-if-needed.rs create mode 100644 src/test/run-pass/issue-36744-without-calls.rs diff --git a/src/test/run-pass/issue-36744-bitcast-args-if-needed.rs b/src/test/run-pass/issue-36744-bitcast-args-if-needed.rs new file mode 100644 index 00000000000..1859cc9ca00 --- /dev/null +++ b/src/test/run-pass/issue-36744-bitcast-args-if-needed.rs @@ -0,0 +1,32 @@ +// Copyright 2016 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// This tests for an ICE (and, if ignored, subsequent LLVM abort) when +// a lifetime-parametric fn is passed into a context whose expected +// type has a differing lifetime parameterization. + +struct A<'a> { + _a: &'a i32, +} + +fn call(s: T, functions: &Vec fn(&'n T)>) { + for function in functions { + function(&s); + } +} + +fn f(a: &A) { println!("a holds {}", a._a); } + +fn main() { + let a = A { _a: &10 }; + + let vec: Vec fn(&'u A<'v>)> = vec![f]; + call(a, &vec); +} diff --git a/src/test/run-pass/issue-36744-without-calls.rs b/src/test/run-pass/issue-36744-without-calls.rs new file mode 100644 index 00000000000..1766edb06b4 --- /dev/null +++ b/src/test/run-pass/issue-36744-without-calls.rs @@ -0,0 +1,22 @@ +// Copyright 2016 The Rust Project Developers. See the COPYRIGHT +// file at the top-level directory of this distribution and at +// http://rust-lang.org/COPYRIGHT. +// +// Licensed under the Apache License, Version 2.0 or the MIT license +// , at your +// option. This file may not be copied, modified, or distributed +// except according to those terms. + +// Tests for an LLVM abort when storing a lifetime-parametric fn into +// context that is expecting one that is not lifetime-parametric +// (i.e. has no `for <'_>`). + +pub struct A<'a>(&'a ()); +pub struct S(T); + +pub fn bad<'s>(v: &mut S)>, y: S fn(A<'b>)>) { + *v = y; +} + +fn main() {} -- cgit 1.4.1-3-g733a5