Add 'compiler/rustc_codegen_gcc/' from commit 'afae271d5d'

git-subtree-dir: compiler/rustc_codegen_gcc
git-subtree-mainline: ae90dcf020
git-subtree-split: afae271d5d

compiler/rustc_codegen_gcc/tests/run/static.rs

@@ -0,0 +1,106 @@
+// Compiler:
+//
+// Run-time:
+//   status: 0
+//   stdout: 10
+//      14
+//      1
+//      12
+//      12
+//      1
+
+#![feature(auto_traits, lang_items, no_core, start, intrinsics)]
+
+#![no_std]
+#![no_core]
+
+/*
+ * Core
+ */
+
+// Because we don't have core yet.
+#[lang = "sized"]
+pub trait Sized {}
+
+#[lang = "copy"]
+trait Copy {
+}
+
+impl Copy for isize {}
+
+#[lang = "receiver"]
+trait Receiver {
+}
+
+#[lang = "freeze"]
+pub(crate) unsafe auto trait Freeze {}
+
+mod intrinsics {
+    use super::Sized;
+
+    extern "rust-intrinsic" {
+        pub fn abort() -> !;
+    }
+}
+
+mod libc {
+    #[link(name = "c")]
+    extern "C" {
+        pub fn printf(format: *const i8, ...) -> i32;
+    }
+}
+
+#[lang = "structural_peq"]
+pub trait StructuralPartialEq {}
+
+#[lang = "structural_teq"]
+pub trait StructuralEq {}
+
+#[lang = "drop_in_place"]
+#[allow(unconditional_recursion)]
+pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) {
+    // Code here does not matter - this is replaced by the
+    // real drop glue by the compiler.
+    drop_in_place(to_drop);
+}
+
+/*
+ * Code
+ */
+
+struct Test {
+    field: isize,
+}
+
+struct WithRef {
+    refe: &'static Test,
+}
+
+static mut CONSTANT: isize = 10;
+
+static mut TEST: Test = Test {
+    field: 12,
+};
+
+static mut TEST2: Test = Test {
+    field: 14,
+};
+
+static mut WITH_REF: WithRef = WithRef {
+    refe: unsafe { &TEST },
+};
+
+#[start]
+fn main(mut argc: isize, _argv: *const *const u8) -> isize {
+    unsafe {
+        libc::printf(b"%ld\n\0" as *const u8 as *const i8, CONSTANT);
+        libc::printf(b"%ld\n\0" as *const u8 as *const i8, TEST2.field);
+        TEST2.field = argc;
+        libc::printf(b"%ld\n\0" as *const u8 as *const i8, TEST2.field);
+        libc::printf(b"%ld\n\0" as *const u8 as *const i8, WITH_REF.refe.field);
+        WITH_REF.refe = &TEST2;
+        libc::printf(b"%ld\n\0" as *const u8 as *const i8, TEST.field);
+        libc::printf(b"%ld\n\0" as *const u8 as *const i8, WITH_REF.refe.field);
+    }
+    0
+}