From 1fdf2b562070ec98c5b32ee67b8c6d8145127a6e Mon Sep 17 00:00:00 2001
From: Folkert de Vries <folkert@folkertdev.nl>
Date: Mon, 9 Jun 2025 20:08:52 +0200
Subject: add `#[align]` attribute

Right now it's used for functions with `fn_align`, in the future it will
get more uses (statics, struct fields, etc.)
---
 tests/codegen/align-fn.rs                        | 22 ++++++++++++----------
 tests/codegen/min-function-alignment.rs          |  6 +++---
 tests/codegen/naked-fn/aligned.rs                |  2 +-
 tests/codegen/naked-fn/min-function-alignment.rs |  4 ++--
 4 files changed, 18 insertions(+), 16 deletions(-)

(limited to 'tests/codegen')

diff --git a/tests/codegen/align-fn.rs b/tests/codegen/align-fn.rs
index 660d8cd2bbf..267da060240 100644
--- a/tests/codegen/align-fn.rs
+++ b/tests/codegen/align-fn.rs
@@ -5,7 +5,7 @@
 
 // CHECK: align 16
 #[no_mangle]
-#[repr(align(16))]
+#[align(16)]
 pub fn fn_align() {}
 
 pub struct A;
@@ -13,12 +13,12 @@ pub struct A;
 impl A {
     // CHECK: align 16
     #[no_mangle]
-    #[repr(align(16))]
+    #[align(16)]
     pub fn method_align(self) {}
 
     // CHECK: align 16
     #[no_mangle]
-    #[repr(align(16))]
+    #[align(16)]
     pub fn associated_fn() {}
 }
 
@@ -26,19 +26,19 @@ trait T: Sized {
     fn trait_fn() {}
 
     // CHECK: align 32
-    #[repr(align(32))]
+    #[align(32)]
     fn trait_method(self) {}
 }
 
 impl T for A {
     // CHECK: align 16
     #[no_mangle]
-    #[repr(align(16))]
+    #[align(16)]
     fn trait_fn() {}
 
     // CHECK: align 16
     #[no_mangle]
-    #[repr(align(16))]
+    #[align(16)]
     fn trait_method(self) {}
 }
 
@@ -51,18 +51,20 @@ pub fn foo() {
 // CHECK-LABEL: align_specified_twice_1
 // CHECK-SAME: align 64
 #[no_mangle]
-#[repr(align(32), align(64))]
+#[align(32)]
+#[align(64)]
 pub fn align_specified_twice_1() {}
 
 // CHECK-LABEL: align_specified_twice_2
 // CHECK-SAME: align 128
 #[no_mangle]
-#[repr(align(128), align(32))]
+#[align(128)]
+#[align(32)]
 pub fn align_specified_twice_2() {}
 
 // CHECK-LABEL: align_specified_twice_3
 // CHECK-SAME: align 256
 #[no_mangle]
-#[repr(align(32))]
-#[repr(align(256))]
+#[align(32)]
+#[align(256)]
 pub fn align_specified_twice_3() {}
diff --git a/tests/codegen/min-function-alignment.rs b/tests/codegen/min-function-alignment.rs
index 7c0ad12402a..75f845572a4 100644
--- a/tests/codegen/min-function-alignment.rs
+++ b/tests/codegen/min-function-alignment.rs
@@ -18,16 +18,16 @@ pub fn no_explicit_align() {}
 // align16: align 16
 // align1024: align 1024
 #[no_mangle]
-#[repr(align(8))]
+#[align(8)]
 pub fn lower_align() {}
 
-// the higher value of min-function-alignment and repr(align) wins out
+// the higher value of min-function-alignment and the align attribute wins out
 //
 // CHECK-LABEL: @higher_align
 // align16: align 32
 // align1024: align 1024
 #[no_mangle]
-#[repr(align(32))]
+#[align(32)]
 pub fn higher_align() {}
 
 // cold functions follow the same rules as other functions
diff --git a/tests/codegen/naked-fn/aligned.rs b/tests/codegen/naked-fn/aligned.rs
index 47ef779f1b2..f9fce8e5a5d 100644
--- a/tests/codegen/naked-fn/aligned.rs
+++ b/tests/codegen/naked-fn/aligned.rs
@@ -8,7 +8,7 @@ use std::arch::naked_asm;
 
 // CHECK: .balign 16
 // CHECK-LABEL: naked_empty:
-#[repr(align(16))]
+#[align(16)]
 #[no_mangle]
 #[unsafe(naked)]
 pub extern "C" fn naked_empty() {
diff --git a/tests/codegen/naked-fn/min-function-alignment.rs b/tests/codegen/naked-fn/min-function-alignment.rs
index 1d778be8c90..59554c1cae5 100644
--- a/tests/codegen/naked-fn/min-function-alignment.rs
+++ b/tests/codegen/naked-fn/min-function-alignment.rs
@@ -16,7 +16,7 @@ pub extern "C" fn naked_no_explicit_align() {
 
 // CHECK: .balign 16
 #[no_mangle]
-#[repr(align(8))]
+#[align(8)]
 #[unsafe(naked)]
 pub extern "C" fn naked_lower_align() {
     core::arch::naked_asm!("ret")
@@ -24,7 +24,7 @@ pub extern "C" fn naked_lower_align() {
 
 // CHECK: .balign 32
 #[no_mangle]
-#[repr(align(32))]
+#[align(32)]
 #[unsafe(naked)]
 pub extern "C" fn naked_higher_align() {
     core::arch::naked_asm!("ret")
-- 
cgit 1.4.1-3-g733a5