diff --git a/src/test/auxiliary/extern_calling_convention.rs b/src/test/auxiliary/extern_calling_convention.rs
index c11c054317d3..55a4226c6632 100644
--- a/src/test/auxiliary/extern_calling_convention.rs
+++ b/src/test/auxiliary/extern_calling_convention.rs
@@ -24,8 +24,7 @@ pub extern "win64" fn foo(a: isize, b: isize, c: isize, d: isize) {
 }
 
 #[inline(never)]
-#[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "aarch64",
-          target_arch = "powerpc64", target_arch = "powerpc64le"))]
+#[cfg(not(target_arch = "x86_64"))]
 pub extern fn foo(a: isize, b: isize, c: isize, d: isize) {
     assert_eq!(a, 1);
     assert_eq!(b, 2);
diff --git a/src/test/run-pass/bitwise.rs b/src/test/run-pass/bitwise.rs
index 6cb99edf3708..bb4b9cfecf7b 100644
--- a/src/test/run-pass/bitwise.rs
+++ b/src/test/run-pass/bitwise.rs
@@ -8,13 +8,12 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[cfg(any(target_arch = "x86", target_arch = "arm"))]
+#[cfg(any(target_pointer_width = "32"))]
 fn target() {
     assert_eq!(-1000isize as usize >> 3_usize, 536870787_usize);
 }
 
-#[cfg(any(target_arch = "x86_64", target_arch = "aarch64",
-          target_arch = "powerpc64", target_arch = "powerpc64le"))]
+#[cfg(any(target_pointer_width = "64"))]
 fn target() {
     assert_eq!(-1000isize as usize >> 3_usize, 2305843009213693827_usize);
 }
diff --git a/src/test/run-pass/intrinsic-alignment.rs b/src/test/run-pass/intrinsic-alignment.rs
index 2f105ec84f1e..a4720d48213c 100644
--- a/src/test/run-pass/intrinsic-alignment.rs
+++ b/src/test/run-pass/intrinsic-alignment.rs
@@ -35,9 +35,7 @@ mod m {
     }
 
     #[main]
-    #[cfg(any(target_arch = "x86_64", target_arch = "arm",
-              target_arch = "aarch64", target_arch = "powerpc64",
-              target_arch = "powerpc64le"))]
+    #[cfg(not(target_arch = "x86"))]
     pub fn main() {
         unsafe {
             assert_eq!(::rusti::pref_align_of::<u64>(), 8);
diff --git a/src/test/run-pass/issue-2895.rs b/src/test/run-pass/issue-2895.rs
index ae62109fe23a..5587f68bd185 100644
--- a/src/test/run-pass/issue-2895.rs
+++ b/src/test/run-pass/issue-2895.rs
@@ -23,14 +23,13 @@ impl Drop for Kitty {
     fn drop(&mut self) {}
 }
 
-#[cfg(any(target_arch = "x86_64", target_arch="aarch64",
-          target_arch="powerpc64", target_arch="powerpc64le"))]
+#[cfg(target_pointer_width = "64")]
 pub fn main() {
     assert_eq!(mem::size_of::<Cat>(), 8 as usize);
     assert_eq!(mem::size_of::<Kitty>(), 16 as usize);
 }
 
-#[cfg(any(target_arch = "x86", target_arch = "arm"))]
+#[cfg(target_pointer_width = "32")]
 pub fn main() {
     assert_eq!(mem::size_of::<Cat>(), 4 as usize);
     assert_eq!(mem::size_of::<Kitty>(), 8 as usize);
diff --git a/src/test/run-pass/rec-align-u32.rs b/src/test/run-pass/rec-align-u32.rs
index 7e3a05bbf847..4a115c737da3 100644
--- a/src/test/run-pass/rec-align-u32.rs
+++ b/src/test/run-pass/rec-align-u32.rs
@@ -35,15 +35,6 @@ struct Outer {
     t: Inner
 }
 
-
-#[cfg(any(target_arch = "x86", target_arch = "arm", target_arch = "aarch64",
-          target_arch = "powerpc64", target_arch = "powerpc64le"))]
-mod m {
-    pub fn align() -> usize { 4 }
-    pub fn size() -> usize { 8 }
-}
-
-#[cfg(target_arch = "x86_64")]
 mod m {
     pub fn align() -> usize { 4 }
     pub fn size() -> usize { 8 }
diff --git a/src/test/run-pass/rec-align-u64.rs b/src/test/run-pass/rec-align-u64.rs
index e12d04adabff..25cd77845ea0 100644
--- a/src/test/run-pass/rec-align-u64.rs
+++ b/src/test/run-pass/rec-align-u64.rs
@@ -49,9 +49,7 @@ mod m {
         pub fn size() -> usize { 12 }
     }
 
-    #[cfg(any(target_arch = "x86_64", target_arch = "arm",
-              target_arch = "aarch64", target_arch = "powerpc64",
-              target_arch = "powerpc64le"))]
+    #[cfg(not(target_arch = "x86"))]
     pub mod m {
         pub fn align() -> usize { 8 }
         pub fn size() -> usize { 16 }
diff --git a/src/test/run-pass/struct-return.rs b/src/test/run-pass/struct-return.rs
index 55474a69cb75..6f23263790cb 100644
--- a/src/test/run-pass/struct-return.rs
+++ b/src/test/run-pass/struct-return.rs
@@ -43,8 +43,7 @@ fn test1() {
     }
 }
 
-#[cfg(any(target_arch = "x86_64", target_arch = "aarch64",
-          target_arch = "powerpc64", target_arch = "powerpc64le"))]
+#[cfg(target_pointer_width = "64")]
 fn test2() {
     unsafe {
         let f = Floats { a: 1.234567890e-15_f64,
@@ -60,7 +59,7 @@ fn test2() {
     }
 }
 
-#[cfg(any(target_arch = "x86", target_arch = "arm"))]
+#[cfg(target_pointer_width = "32")]
 fn test2() {
 }