1 files changed, 50 insertions, 0 deletions
diff --git a/tests/codegen/float_math.rs b/tests/codegen/float_math.rs
new file mode 100644
index 000000000..592e09452
--- /dev/null
+++ b/tests/codegen/float_math.rs
@@ -0,0 +1,50 @@
+// compile-flags: -C no-prepopulate-passes
+
+#![crate_type = "lib"]
+#![feature(core_intrinsics)]
+
+use std::intrinsics::{fadd_fast, fsub_fast, fmul_fast, fdiv_fast, frem_fast};
+
+// CHECK-LABEL: @add
+#[no_mangle]
+pub fn add(x: f32, y: f32) -> f32 {
+// CHECK: fadd float
+// CHECK-NOT: fast
+    x + y
+}
+
+// CHECK-LABEL: @addition
+#[no_mangle]
+pub fn addition(x: f32, y: f32) -> f32 {
+// CHECK: fadd fast float
+    unsafe {
+        fadd_fast(x, y)
+    }
+}
+
+// CHECK-LABEL: @subtraction
+#[no_mangle]
+pub fn subtraction(x: f32, y: f32) -> f32 {
+// CHECK: fsub fast float
+    unsafe {
+        fsub_fast(x, y)
+    }
+}
+
+// CHECK-LABEL: @multiplication
+#[no_mangle]
+pub fn multiplication(x: f32, y: f32) -> f32 {
+// CHECK: fmul fast float
+    unsafe {
+        fmul_fast(x, y)
+    }
+}
+
+// CHECK-LABEL: @division
+#[no_mangle]
+pub fn division(x: f32, y: f32) -> f32 {
+// CHECK: fdiv fast float
+    unsafe {
+        fdiv_fast(x, y)
+    }
+}