Add 'compiler/rustc_codegen_gcc/' from commit 'afae271d5d3719eeb92c18bc004bb6d1965a5f3f'

git-subtree-dir: compiler/rustc_codegen_gcc
git-subtree-mainline: ae90dcf0207c57c3034f00b07048d63f8b2363c8
git-subtree-split: afae271d5d3719eeb92c18bc004bb6d1965a5f3f

1 files changed, 41 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_gcc/example/alloc_example.rs b/compiler/rustc_codegen_gcc/example/alloc_example.rs
new file mode 100644
index 00000000000..bc6dd007ba0
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/example/alloc_example.rs
@@ -0,0 +1,41 @@
+#![feature(start, box_syntax, core_intrinsics, alloc_prelude, alloc_error_handler)]
+#![no_std]
+
+extern crate alloc;
+extern crate alloc_system;
+
+use alloc::prelude::v1::*;
+
+use alloc_system::System;
+
+#[global_allocator]
+static ALLOC: System = System;
+
+#[link(name = "c")]
+extern "C" {
+    fn puts(s: *const u8) -> i32;
+}
+
+#[panic_handler]
+fn panic_handler(_: &core::panic::PanicInfo) -> ! {
+    unsafe {
+        core::intrinsics::abort();
+    }
+}
+
+#[alloc_error_handler]
+fn alloc_error_handler(_: alloc::alloc::Layout) -> ! {
+    unsafe {
+        core::intrinsics::abort();
+    }
+}
+
+#[start]
+fn main(_argc: isize, _argv: *const *const u8) -> isize {
+    let world: Box<&str> = box "Hello World!\0";
+    unsafe {
+        puts(*world as *const str as *const u8);
+    }
+
+    0
+}