1 files changed, 63 insertions, 0 deletions
diff --git a/tests/codegen/intrinsics/prefetch.rs b/tests/codegen/intrinsics/prefetch.rs
new file mode 100644
index 000000000..59d7fa638
--- /dev/null
+++ b/tests/codegen/intrinsics/prefetch.rs
@@ -0,0 +1,63 @@
+// compile-flags: -C no-prepopulate-passes
+
+#![crate_type = "lib"]
+#![feature(core_intrinsics)]
+
+use std::intrinsics::{prefetch_read_data, prefetch_write_data,
+                      prefetch_read_instruction, prefetch_write_instruction};
+
+#[no_mangle]
+pub fn check_prefetch_read_data(data: &[i8]) {
+    unsafe {
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 1)
+        prefetch_read_data(data.as_ptr(), 0);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 1)
+        prefetch_read_data(data.as_ptr(), 1);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 1)
+        prefetch_read_data(data.as_ptr(), 2);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 1)
+        prefetch_read_data(data.as_ptr(), 3);
+    }
+}
+
+#[no_mangle]
+pub fn check_prefetch_write_data(data: &[i8]) {
+    unsafe {
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 1)
+        prefetch_write_data(data.as_ptr(), 0);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 1)
+        prefetch_write_data(data.as_ptr(), 1);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 1)
+        prefetch_write_data(data.as_ptr(), 2);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 1)
+        prefetch_write_data(data.as_ptr(), 3);
+    }
+}
+
+#[no_mangle]
+pub fn check_prefetch_read_instruction(data: &[i8]) {
+    unsafe {
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 0)
+        prefetch_read_instruction(data.as_ptr(), 0);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 0)
+        prefetch_read_instruction(data.as_ptr(), 1);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 0)
+        prefetch_read_instruction(data.as_ptr(), 2);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 0)
+        prefetch_read_instruction(data.as_ptr(), 3);
+    }
+}
+
+#[no_mangle]
+pub fn check_prefetch_write_instruction(data: &[i8]) {
+    unsafe {
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 0)
+        prefetch_write_instruction(data.as_ptr(), 0);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 0)
+        prefetch_write_instruction(data.as_ptr(), 1);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 0)
+        prefetch_write_instruction(data.as_ptr(), 2);
+        // CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 0)
+        prefetch_write_instruction(data.as_ptr(), 3);
+    }
+}