diff --git a/library/compiler-builtins/compiler-rt/compiler-rt-cdylib/src/lib.rs b/library/compiler-builtins/compiler-rt/compiler-rt-cdylib/src/lib.rs
index 268da50d6f17..a72461483218 100644
--- a/library/compiler-builtins/compiler-rt/compiler-rt-cdylib/src/lib.rs
+++ b/library/compiler-builtins/compiler-rt/compiler-rt-cdylib/src/lib.rs
@@ -58,7 +58,10 @@ declare!(___adddf3, __adddf3);
 declare!(___powisf2, __powisf2);
 declare!(___powidf2, __powidf2);
 
-#[cfg(all(not(windows), target_pointer_width="64"))]
+#[cfg(all(not(windows),
+          not(target_arch = "mips64"),
+          not(target_arch = "mips64el"),
+          target_pointer_width="64"))]
 pub mod int_128 {
     extern {
         fn __lshrti3();
diff --git a/library/compiler-builtins/src/int/mul.rs b/library/compiler-builtins/src/int/mul.rs
index 1ccaf04d6348..27709e521465 100644
--- a/library/compiler-builtins/src/int/mul.rs
+++ b/library/compiler-builtins/src/int/mul.rs
@@ -122,7 +122,10 @@ mod tests {
 }
 
 #[cfg(test)]
-#[cfg(all(not(windows), target_pointer_width="64"))]
+#[cfg(all(not(windows),
+          not(target_arch = "mips64"),
+          not(target_arch = "mips64el"),
+          target_pointer_width="64"))]
 mod tests_i128 {
     use qc::I128;
 
diff --git a/library/compiler-builtins/src/int/sdiv.rs b/library/compiler-builtins/src/int/sdiv.rs
index 97e1939919ae..023fad44d3c9 100644
--- a/library/compiler-builtins/src/int/sdiv.rs
+++ b/library/compiler-builtins/src/int/sdiv.rs
@@ -164,11 +164,14 @@ mod tests {
 }
 
 #[cfg(test)]
-#[cfg(all(not(windows), target_pointer_width="64"))]
+#[cfg(all(not(windows),
+          not(target_arch = "mips64"),
+          not(target_arch = "mips64el"),
+          target_pointer_width="64"))]
 mod tests_i128 {
     use qc::U128;
-
     check! {
+
         fn __divti3(f: extern fn(i128, i128) -> i128, n: U128, d: U128) -> Option<i128> {
             let (n, d) = (n.0 as i128, d.0 as i128);
             if d == 0 {
diff --git a/library/compiler-builtins/src/int/shift.rs b/library/compiler-builtins/src/int/shift.rs
index 2993d9286bca..e5dc38fdac50 100644
--- a/library/compiler-builtins/src/int/shift.rs
+++ b/library/compiler-builtins/src/int/shift.rs
@@ -105,7 +105,10 @@ mod tests {
 }
 
 #[cfg(test)]
-#[cfg(all(not(windows), target_pointer_width="64"))]
+#[cfg(all(not(windows),
+          not(target_arch = "mips64"),
+          not(target_arch = "mips64el"),
+          target_pointer_width="64"))]
 mod tests_i128 {
     use qc::{I128, U128};
 
diff --git a/library/compiler-builtins/src/int/udiv.rs b/library/compiler-builtins/src/int/udiv.rs
index 735d388c1990..57d5fe549d84 100644
--- a/library/compiler-builtins/src/int/udiv.rs
+++ b/library/compiler-builtins/src/int/udiv.rs
@@ -382,7 +382,10 @@ mod tests {
 }
 
 #[cfg(test)]
-#[cfg(all(not(windows), target_pointer_width="64"))]
+#[cfg(all(not(windows),
+          not(target_arch = "mips64"),
+          not(target_arch = "mips64el"),
+          target_pointer_width="64"))]
 mod tests_i128 {
     use qc::U128;