Merge tag 'debian/1.52.1+dfsg1-1_exp2' into proxmox/buster

[rustc.git] / src / test / codegen / target-feature-overrides.rs

diff --git a/src/test/codegen/target-feature-overrides.rs b/src/test/codegen/target-feature-overrides.rs
new file mode 100644 (file)
index 0000000..2c19cfd
--- /dev/null
+++ b/src/test/codegen/target-feature-overrides.rs
@@ -0,0 +1,47 @@
+// revisions: COMPAT INCOMPAT
+// needs-llvm-components: x86
+// compile-flags: --target=x86_64-unknown-linux-gnu -Copt-level=3
+// [COMPAT] compile-flags: -Ctarget-feature=+avx2,+avx
+// [INCOMPAT] compile-flags: -Ctarget-feature=-avx2,-avx
+
+// See also src/test/assembly/target-feature-multiple.rs
+#![feature(no_core, lang_items)]
+#![crate_type = "lib"]
+#![no_core]
+
+
+#[lang = "sized"]
+trait Sized {}
+#[lang = "copy"]
+trait Copy {}
+
+extern "C" {
+    fn peach() -> u32;
+}
+
+#[inline]
+#[target_feature(enable = "avx")]
+#[no_mangle]
+pub unsafe fn apple() -> u32 {
+// CHECK-LABEL: @apple()
+// CHECK-SAME: [[APPLEATTRS:#[0-9]+]] {
+// CHECK: {{.*}}call{{.*}}@peach
+    peach()
+}
+
+// target features same as global (not reflected or overriden in IR)
+#[no_mangle]
+pub unsafe fn banana() -> u32 {
+// CHECK-LABEL: @banana()
+// CHECK-SAME: [[BANANAATTRS:#[0-9]+]] {
+// COMPAT: {{.*}}call{{.*}}@peach
+// INCOMPAT: {{.*}}call{{.*}}@apple
+    apple() // Compatible for inline in COMPAT revision and can't be inlined in INCOMPAT
+}
+
+// CHECK: attributes [[APPLEATTRS]]
+// COMPAT-SAME: "target-features"="+avx2,+avx,+avx"
+// INCOMPAT-SAME: "target-features"="-avx2,-avx,+avx"
+// CHECK: attributes [[BANANAATTRS]]
+// CHECK-NOT: target-features
+// CHECK-SAME: }