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-rw-r--r--src/libcore/simd.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/libcore/simd.rs b/src/libcore/simd.rs
index 54e7d077bb1..42418ccbc1a 100644
--- a/src/libcore/simd.rs
+++ b/src/libcore/simd.rs
@@ -40,6 +40,7 @@
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct i8x16(pub i8, pub i8, pub i8, pub i8,
                  pub i8, pub i8, pub i8, pub i8,
                  pub i8, pub i8, pub i8, pub i8,
@@ -48,22 +49,26 @@ pub struct i8x16(pub i8, pub i8, pub i8, pub i8,
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct i16x8(pub i16, pub i16, pub i16, pub i16,
                  pub i16, pub i16, pub i16, pub i16);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct i32x4(pub i32, pub i32, pub i32, pub i32);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct i64x2(pub i64, pub i64);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct u8x16(pub u8, pub u8, pub u8, pub u8,
                  pub u8, pub u8, pub u8, pub u8,
                  pub u8, pub u8, pub u8, pub u8,
@@ -72,25 +77,30 @@ pub struct u8x16(pub u8, pub u8, pub u8, pub u8,
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct u16x8(pub u16, pub u16, pub u16, pub u16,
                  pub u16, pub u16, pub u16, pub u16);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct u32x4(pub u32, pub u32, pub u32, pub u32);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct u64x2(pub u64, pub u64);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct f32x4(pub f32, pub f32, pub f32, pub f32);
 
 #[experimental]
 #[simd]
 #[deriving(Show)]
+#[repr(C)]
 pub struct f64x2(pub f64, pub f64);