Rename `tests/codegen` into `tests/codegen-llvm`

6 files changed, 106 insertions, 0 deletions

diff --git a/tests/codegen-llvm/cross-crate-inlining/always-inline.rs b/tests/codegen-llvm/cross-crate-inlining/always-inline.rs
new file mode 100644
index 00000000000..df28b3fe197
--- /dev/null
+++ b/tests/codegen-llvm/cross-crate-inlining/always-inline.rs
@@ -0,0 +1,13 @@
+//@ compile-flags: -Copt-level=3
+//@ aux-build:always.rs
+
+#![crate_type = "lib"]
+
+extern crate always;
+
+// Check that we inline a cross-crate call, even though it isn't a leaf
+#[no_mangle]
+pub fn outer() -> String {
+    // CHECK-NOT: call {{.*}}stem_fn
+    always::stem_fn()
+}
diff --git a/tests/codegen-llvm/cross-crate-inlining/auxiliary/always.rs b/tests/codegen-llvm/cross-crate-inlining/auxiliary/always.rs
new file mode 100644
index 00000000000..6ee3f81e3c8
--- /dev/null
+++ b/tests/codegen-llvm/cross-crate-inlining/auxiliary/always.rs
@@ -0,0 +1,20 @@
+//@ compile-flags: -Copt-level=3 -Zcross-crate-inline-threshold=always
+
+#![crate_type = "lib"]
+
+// This function *looks* like it contains a call, but that call will be optimized out by MIR
+// optimizations.
+pub fn leaf_fn() -> String {
+    String::new()
+}
+
+// This function contains a call, even after MIR optimizations. It is only eligible for
+// cross-crate-inlining with "always".
+pub fn stem_fn() -> String {
+    inner()
+}
+
+#[inline(never)]
+fn inner() -> String {
+    String::from("test")
+}
diff --git a/tests/codegen-llvm/cross-crate-inlining/auxiliary/leaf.rs b/tests/codegen-llvm/cross-crate-inlining/auxiliary/leaf.rs
new file mode 100644
index 00000000000..d059a3d0a73
--- /dev/null
+++ b/tests/codegen-llvm/cross-crate-inlining/auxiliary/leaf.rs
@@ -0,0 +1,20 @@
+//@ compile-flags: -Copt-level=3
+
+#![crate_type = "lib"]
+
+// This function *looks* like it contains a call, but that call will be optimized out by MIR
+// optimizations.
+pub fn leaf_fn() -> String {
+    String::new()
+}
+
+// This function contains a call, even after MIR optimizations. It is only eligible for
+// cross-crate-inlining with "always".
+pub fn stem_fn() -> String {
+    inner()
+}
+
+#[inline(never)]
+fn inner() -> String {
+    String::from("test")
+}
diff --git a/tests/codegen-llvm/cross-crate-inlining/auxiliary/never.rs b/tests/codegen-llvm/cross-crate-inlining/auxiliary/never.rs
new file mode 100644
index 00000000000..55c90809ec1
--- /dev/null
+++ b/tests/codegen-llvm/cross-crate-inlining/auxiliary/never.rs
@@ -0,0 +1,20 @@
+//@ compile-flags: -Copt-level=3 -Zcross-crate-inline-threshold=never
+
+#![crate_type = "lib"]
+
+// This function *looks* like it contains a call, but that call will be optimized out by MIR
+// optimizations.
+pub fn leaf_fn() -> String {
+    String::new()
+}
+
+// This function contains a call, even after MIR optimizations. It is only eligible for
+// cross-crate-inlining with "always".
+pub fn stem_fn() -> String {
+    inner()
+}
+
+#[inline(never)]
+fn inner() -> String {
+    String::from("test")
+}
diff --git a/tests/codegen-llvm/cross-crate-inlining/leaf-inlining.rs b/tests/codegen-llvm/cross-crate-inlining/leaf-inlining.rs
new file mode 100644
index 00000000000..37132312ca9
--- /dev/null
+++ b/tests/codegen-llvm/cross-crate-inlining/leaf-inlining.rs
@@ -0,0 +1,20 @@
+//@ compile-flags: -Copt-level=3 -Zcross-crate-inline-threshold=yes
+//@ aux-build:leaf.rs
+
+#![crate_type = "lib"]
+
+extern crate leaf;
+
+// Check that we inline a leaf cross-crate call
+#[no_mangle]
+pub fn leaf_outer() -> String {
+    // CHECK-NOT: call {{.*}}leaf_fn
+    leaf::leaf_fn()
+}
+
+// Check that we do not inline a non-leaf cross-crate call
+#[no_mangle]
+pub fn stem_outer() -> String {
+    // CHECK: call {{.*}}stem_fn
+    leaf::stem_fn()
+}
diff --git a/tests/codegen-llvm/cross-crate-inlining/never-inline.rs b/tests/codegen-llvm/cross-crate-inlining/never-inline.rs
new file mode 100644
index 00000000000..759f65d9d42
--- /dev/null
+++ b/tests/codegen-llvm/cross-crate-inlining/never-inline.rs
@@ -0,0 +1,13 @@
+//@ compile-flags: -Copt-level=3
+//@ aux-build:never.rs
+
+#![crate_type = "lib"]
+
+extern crate never;
+
+// Check that we do not inline a cross-crate call, even though it is a leaf
+#[no_mangle]
+pub fn outer() -> String {
+    // CHECK: call {{.*}}leaf_fn
+    never::leaf_fn()
+}