---

yaml
---
r: 211332
b: refs/heads/tmp
c: c654a07
h: refs/heads/master
v: v3

Author: bors

[refs]

@@ -32,7 +32,7 @@ refs/heads/building: 126db549b038c84269a1e4fe46f051b2c15d6970
 refs/heads/beta: 2d00dc3b85aaf81caa3a4e5764c5e185a4dd0a7c
 refs/heads/windistfix: 7608dbad651f02e837ed05eef3d74a6662a6e928
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
-refs/heads/tmp: 0ec3183df8d0cdccc735fa6572d664b43dbb5e31
+refs/heads/tmp: c654a07d29c77b5a023cb9d36dfc61811349f64e
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f
 refs/tags/homu-tmp: 704c2ee730d2e948d11a2edd77e3f35de8329a6e
 refs/heads/gate: 97c84447b65164731087ea82685580cc81424412

branches/tmp/src/librustc_lint/builtin.rs

@@ -203,10 +203,12 @@ impl LintPass for TypeLimits {
                                 } else {
                                     t
                                 };
-                                let (min, max) = int_ty_range(int_type);
+                                let (_, max) = int_ty_range(int_type);
                                 let negative = self.negated_expr_id == e.id;
 
-                                if (negative && min != i64::MIN && v > -min as u64) ||
+                                // Detect literal value out of range [min, max] inclusive
+                                // avoiding use of -min to prevent overflow/panic
+                                if (negative && v > max as u64 + 1) ||
                                    (!negative && v > max as u64) {
                                     cx.span_lint(OVERFLOWING_LITERALS, e.span,
                                                  &*format!("literal out of range for {:?}", t));

branches/tmp/src/test/compile-fail/lint-type-overflow.rs

@@ -52,6 +52,8 @@ fn main() {
     let x = 9223372036854775808_i64; //~ error: literal out of range for i64
     let x = -9223372036854775808_i64; // should be OK
     let x = 18446744073709551615_i64; //~ error: literal out of range for i64
+    let x: i64 = -9223372036854775809; //~ error: literal out of range for i64
+    let x = -9223372036854775809_i64; //~ error: literal out of range for i64
 
     let x = -3.40282348e+38_f32; //~ error: literal out of range for f32
     let x =  3.40282348e+38_f32; //~ error: literal out of range for f32