Auto merge of #106458 - albertlarsan68:move-tests, r=jyn514

Move src/test to the root

See MCP at rust-lang/compiler-team#573

There may be more changes needed.

The first commit is just the move of the files:
You can check that the first commit did not do anything else than renames by running
```
git diff --diff-filter=r -M100% <rust-lang remote>/master <first commit hash>
```
The output should be empty, because the filter excludes renames, and the match threshold for qualifying a rename is 100%.

The second one is mostly a "find and replace" of `src/test` to `tests` and whatever is needed to make CI pass.

What is left to do:
---

- [x] Move directory
- [ ] Change references to `src/test`
    - [x] Change references in-tree
    - [ ] Change references in submodules / out-of-tree docs
- [x] Make CI pass:
    - [x] Fix tidy
    - [x] Fix tests
    - [x] Bless tests if needed (shouldn't normally)
- [ ] Merge it !

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/codegen/scalar-pair-bool.rs b/tests/codegen/scalar-pair-bool.rs
new file mode 100644
index 00000000000..264f28fdb5f
--- /dev/null
+++ b/tests/codegen/scalar-pair-bool.rs
@@ -0,0 +1,45 @@
+// compile-flags: -O
+
+#![crate_type = "lib"]
+
+// CHECK: define{{.*}}{ i8, i8 } @pair_bool_bool(i1 noundef zeroext %pair.0, i1 noundef zeroext %pair.1)
+#[no_mangle]
+pub fn pair_bool_bool(pair: (bool, bool)) -> (bool, bool) {
+    pair
+}
+
+// CHECK: define{{.*}}{ i8, i32 } @pair_bool_i32(i1 noundef zeroext %pair.0, i32 %pair.1)
+#[no_mangle]
+pub fn pair_bool_i32(pair: (bool, i32)) -> (bool, i32) {
+    pair
+}
+
+// CHECK: define{{.*}}{ i32, i8 } @pair_i32_bool(i32 %pair.0, i1 noundef zeroext %pair.1)
+#[no_mangle]
+pub fn pair_i32_bool(pair: (i32, bool)) -> (i32, bool) {
+    pair
+}
+
+// CHECK: define{{.*}}{ i8, i8 } @pair_and_or(i1 noundef zeroext %_1.0, i1 noundef zeroext %_1.1)
+#[no_mangle]
+pub fn pair_and_or((a, b): (bool, bool)) -> (bool, bool) {
+    // Make sure it can operate directly on the unpacked args
+    // (but it might not be using simple and/or instructions)
+    // CHECK-DAG: %_1.0
+    // CHECK-DAG: %_1.1
+    (a && b, a || b)
+}
+
+// CHECK: define{{.*}}void @pair_branches(i1 noundef zeroext %_1.0, i1 noundef zeroext %_1.1)
+#[no_mangle]
+pub fn pair_branches((a, b): (bool, bool)) {
+    // Make sure it can branch directly on the unpacked bool args
+    // CHECK: br i1 %_1.0
+    if a {
+        println!("Hello!");
+    }
+    // CHECK: br i1 %_1.1
+    if b {
+        println!("Goodbye!");
+    }
+}