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-rw-r--r--src/test/codegen/call-llvm-intrinsics.rs29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/test/codegen/call-llvm-intrinsics.rs b/src/test/codegen/call-llvm-intrinsics.rs
new file mode 100644
index 000000000..998099c23
--- /dev/null
+++ b/src/test/codegen/call-llvm-intrinsics.rs
@@ -0,0 +1,29 @@
+// compile-flags: -C no-prepopulate-passes
+
+// ignore-riscv64
+
+#![feature(link_llvm_intrinsics)]
+#![crate_type = "lib"]
+
+struct A;
+
+impl Drop for A {
+ fn drop(&mut self) {
+ println!("A");
+ }
+}
+
+extern "C" {
+ #[link_name = "llvm.sqrt.f32"]
+ fn sqrt(x: f32) -> f32;
+}
+
+pub fn do_call() {
+ let _a = A;
+
+ unsafe {
+ // Ensure that we `call` LLVM intrinsics instead of trying to `invoke` them
+ // CHECK: call float @llvm.sqrt.f32(float 4.000000e+00
+ sqrt(4.0);
+ }
+}