1 files changed, 140 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_gcc/tests/run/int_overflow.rs b/compiler/rustc_codegen_gcc/tests/run/int_overflow.rs
new file mode 100644
index 000000000..ea2c5add9
--- /dev/null
+++ b/compiler/rustc_codegen_gcc/tests/run/int_overflow.rs
@@ -0,0 +1,140 @@
+// Compiler:
+//
+// Run-time:
+//   stdout: Success
+//   status: signal
+
+#![allow(unused_attributes)]
+#![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 {}
+impl Copy for *mut i32 {}
+impl Copy for usize {}
+impl Copy for i32 {}
+impl Copy for u8 {}
+impl Copy for i8 {}
+
+#[lang = "receiver"]
+trait Receiver {
+}
+
+#[lang = "freeze"]
+pub(crate) unsafe auto trait Freeze {}
+
+#[lang = "panic_location"]
+struct PanicLocation {
+    file: &'static str,
+    line: u32,
+    column: u32,
+}
+
+mod libc {
+    #[link(name = "c")]
+    extern "C" {
+        pub fn puts(s: *const u8) -> i32;
+        pub fn fflush(stream: *mut i32) -> i32;
+
+        pub static stdout: *mut i32;
+    }
+}
+
+mod intrinsics {
+    extern "rust-intrinsic" {
+        pub fn abort() -> !;
+    }
+}
+
+#[lang = "panic"]
+#[track_caller]
+#[no_mangle]
+pub fn panic(_msg: &str) -> ! {
+    unsafe {
+        // Panicking is expected iff overflow checking is enabled.
+        #[cfg(debug_assertions)]
+        libc::puts("Success\0" as *const str as *const u8);
+        libc::fflush(libc::stdout);
+        intrinsics::abort();
+    }
+}
+
+#[lang = "add"]
+trait Add<RHS = Self> {
+    type Output;
+
+    fn add(self, rhs: RHS) -> Self::Output;
+}
+
+impl Add for u8 {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self {
+        self + rhs
+    }
+}
+
+impl Add for i8 {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self {
+        self + rhs
+    }
+}
+
+impl Add for i32 {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self {
+        self + rhs
+    }
+}
+
+impl Add for usize {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self {
+        self + rhs
+    }
+}
+
+impl Add for isize {
+    type Output = Self;
+
+    fn add(self, rhs: Self) -> Self {
+        self + rhs
+    }
+}
+
+/*
+ * Code
+ */
+
+#[start]
+fn main(mut argc: isize, _argv: *const *const u8) -> isize {
+    let int = 9223372036854775807isize;
+    let int = int + argc;  // overflow
+
+    // If overflow checking is disabled, we should reach here.
+    #[cfg(not(debug_assertions))]
+    unsafe {
+        libc::puts("Success\0" as *const str as *const u8);
+        libc::fflush(libc::stdout);
+        intrinsics::abort();
+    }
+
+    int
+}