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-rw-r--r--tests/codegen/align-fn.rs54
-rw-r--r--tests/codegen/gpu_offload/gpu_host.rs80
-rw-r--r--tests/codegen/min-function-alignment.rs6
-rw-r--r--tests/codegen/naked-fn/aligned.rs5
-rw-r--r--tests/codegen/naked-fn/min-function-alignment.rs6
-rw-r--r--tests/ui-fulldeps/rustc_public/check_abi.rs (renamed from tests/ui-fulldeps/stable-mir/check_abi.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_allocation.rs (renamed from tests/ui-fulldeps/stable-mir/check_allocation.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_assoc_items.rs (renamed from tests/ui-fulldeps/stable-mir/check_assoc_items.rs)0
-rw-r--r--tests/ui-fulldeps/rustc_public/check_attribute.rs (renamed from tests/ui-fulldeps/stable-mir/check_attribute.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_binop.rs (renamed from tests/ui-fulldeps/stable-mir/check_binop.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_coroutine_body.rs (renamed from tests/ui-fulldeps/stable-mir/check_coroutine_body.rs)0
-rw-r--r--tests/ui-fulldeps/rustc_public/check_crate_defs.rs (renamed from tests/ui-fulldeps/stable-mir/check_crate_defs.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_def_ty.rs (renamed from tests/ui-fulldeps/stable-mir/check_def_ty.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_defs.rs (renamed from tests/ui-fulldeps/stable-mir/check_defs.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_foreign.rs (renamed from tests/ui-fulldeps/stable-mir/check_foreign.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_instance.rs (renamed from tests/ui-fulldeps/stable-mir/check_instance.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_intrinsics.rs (renamed from tests/ui-fulldeps/stable-mir/check_intrinsics.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_item_kind.rs (renamed from tests/ui-fulldeps/stable-mir/check_item_kind.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_normalization.rs (renamed from tests/ui-fulldeps/stable-mir/check_normalization.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_trait_queries.rs (renamed from tests/ui-fulldeps/stable-mir/check_trait_queries.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_transform.rs (renamed from tests/ui-fulldeps/stable-mir/check_transform.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_ty_fold.rs (renamed from tests/ui-fulldeps/stable-mir/check_ty_fold.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/check_variant.rs (renamed from tests/ui-fulldeps/stable-mir/check_variant.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/closure-generic-body.rs (renamed from tests/ui-fulldeps/stable-mir/closure-generic-body.rs)0
-rw-r--r--tests/ui-fulldeps/rustc_public/closure_body.rs (renamed from tests/ui-fulldeps/stable-mir/closure_body.rs)0
-rw-r--r--tests/ui-fulldeps/rustc_public/compilation-result.rs (renamed from tests/ui-fulldeps/stable-mir/compilation-result.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/crate-info.rs (renamed from tests/ui-fulldeps/stable-mir/crate-info.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/projections.rs (renamed from tests/ui-fulldeps/stable-mir/projections.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/smir_internal.rs (renamed from tests/ui-fulldeps/stable-mir/smir_internal.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/smir_serde.rs (renamed from tests/ui-fulldeps/stable-mir/smir_serde.rs)2
-rw-r--r--tests/ui-fulldeps/rustc_public/smir_visitor.rs (renamed from tests/ui-fulldeps/stable-mir/smir_visitor.rs)2
-rw-r--r--tests/ui/asm/naked-with-invalid-repr-attr.rs6
-rw-r--r--tests/ui/asm/naked-with-invalid-repr-attr.stderr12
-rw-r--r--tests/ui/attributes/fn-align-dyn.rs7
-rw-r--r--tests/ui/attributes/fn-align-nameres-ambiguity-143834.rs19
-rw-r--r--tests/ui/attributes/malformed-attrs.rs3
-rw-r--r--tests/ui/attributes/malformed-attrs.stderr170
-rw-r--r--tests/ui/attributes/malformed-fn-align.rs35
-rw-r--r--tests/ui/attributes/malformed-fn-align.stderr116
-rw-r--r--tests/ui/consts/const-try-feature-gate.rs2
-rw-r--r--tests/ui/consts/const-try-feature-gate.stderr36
-rw-r--r--tests/ui/consts/const-try.rs8
-rw-r--r--tests/ui/consts/const-try.stderr37
-rw-r--r--tests/ui/consts/control-flow/try.rs9
-rw-r--r--tests/ui/consts/control-flow/try.stderr19
-rw-r--r--tests/ui/consts/try-operator.rs3
-rw-r--r--tests/ui/consts/try-operator.stderr42
-rw-r--r--tests/ui/feature-gates/feature-gate-fn_align.rs14
-rw-r--r--tests/ui/feature-gates/feature-gate-fn_align.stderr26
-rw-r--r--tests/ui/lifetimes/elided-lifetime-in-const-param-type.rs12
-rw-r--r--tests/ui/lifetimes/elided-lifetime-in-const-param-type.stderr20
-rw-r--r--tests/ui/rust-2018/removing-extern-crate-malformed-cfg.fixed2
-rw-r--r--tests/ui/rust-2018/removing-extern-crate-malformed-cfg.rs6
-rw-r--r--tests/ui/rust-2018/removing-extern-crate-malformed-cfg.stderr12
-rw-r--r--tests/ui/rustc_public-ir-print/async-closure.rs (renamed from tests/ui/stable-mir-print/async-closure.rs)0
-rw-r--r--tests/ui/rustc_public-ir-print/async-closure.stdout (renamed from tests/ui/stable-mir-print/async-closure.stdout)2
-rw-r--r--tests/ui/rustc_public-ir-print/basic_function.rs (renamed from tests/ui/stable-mir-print/basic_function.rs)0
-rw-r--r--tests/ui/rustc_public-ir-print/basic_function.stdout (renamed from tests/ui/stable-mir-print/basic_function.stdout)2
-rw-r--r--tests/ui/rustc_public-ir-print/operands.rs (renamed from tests/ui/stable-mir-print/operands.rs)0
-rw-r--r--tests/ui/rustc_public-ir-print/operands.stdout (renamed from tests/ui/stable-mir-print/operands.stdout)2
-rw-r--r--tests/ui/traits/const-traits/hir-const-check.rs4
-rw-r--r--tests/ui/traits/const-traits/hir-const-check.stderr19
-rw-r--r--tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs5
-rw-r--r--tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr13
-rw-r--r--tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs8
-rw-r--r--tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr41
-rw-r--r--tests/ui/traits/const-traits/trait-default-body-stability.rs2
-rw-r--r--tests/ui/traits/const-traits/trait-default-body-stability.stderr37
68 files changed, 464 insertions, 482 deletions
diff --git a/tests/codegen/align-fn.rs b/tests/codegen/align-fn.rs
index fd572910c28..cbc24e2ae2e 100644
--- a/tests/codegen/align-fn.rs
+++ b/tests/codegen/align-fn.rs
@@ -3,11 +3,13 @@
 //@ ignore-wasm32 aligning functions is not currently supported on wasm (#143368)
 
 #![crate_type = "lib"]
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
 
 // CHECK: align 16
 #[unsafe(no_mangle)]
-#[align(16)]
+#[rustc_align(16)]
 pub fn fn_align() {}
 
 pub struct A;
@@ -15,12 +17,12 @@ pub struct A;
 impl A {
     // CHECK: align 16
     #[unsafe(no_mangle)]
-    #[align(16)]
+    #[rustc_align(16)]
     pub fn method_align(self) {}
 
     // CHECK: align 16
     #[unsafe(no_mangle)]
-    #[align(16)]
+    #[rustc_align(16)]
     pub fn associated_fn() {}
 }
 
@@ -29,18 +31,18 @@ trait T: Sized {
 
     fn trait_method(self) {}
 
-    #[align(8)]
+    #[rustc_align(8)]
     fn trait_method_inherit_low(self);
 
-    #[align(32)]
+    #[rustc_align(32)]
     fn trait_method_inherit_high(self);
 
-    #[align(32)]
+    #[rustc_align(32)]
     fn trait_method_inherit_default(self) {}
 
-    #[align(4)]
-    #[align(128)]
-    #[align(8)]
+    #[rustc_align(4)]
+    #[rustc_align(128)]
+    #[rustc_align(8)]
     fn inherit_highest(self) {}
 }
 
@@ -48,27 +50,27 @@ impl T for A {
     // CHECK-LABEL: trait_fn
     // CHECK-SAME: align 16
     #[unsafe(no_mangle)]
-    #[align(16)]
+    #[rustc_align(16)]
     fn trait_fn() {}
 
     // CHECK-LABEL: trait_method
     // CHECK-SAME: align 16
     #[unsafe(no_mangle)]
-    #[align(16)]
+    #[rustc_align(16)]
     fn trait_method(self) {}
 
     // The prototype's align is ignored because the align here is higher.
     // CHECK-LABEL: trait_method_inherit_low
     // CHECK-SAME: align 16
     #[unsafe(no_mangle)]
-    #[align(16)]
+    #[rustc_align(16)]
     fn trait_method_inherit_low(self) {}
 
     // The prototype's align is used because it is higher.
     // CHECK-LABEL: trait_method_inherit_high
     // CHECK-SAME: align 32
     #[unsafe(no_mangle)]
-    #[align(16)]
+    #[rustc_align(16)]
     fn trait_method_inherit_high(self) {}
 
     // The prototype's align inherited.
@@ -81,8 +83,8 @@ impl T for A {
     // CHECK-LABEL: inherit_highest
     // CHECK-SAME: align 128
     #[unsafe(no_mangle)]
-    #[align(32)]
-    #[align(64)]
+    #[rustc_align(32)]
+    #[rustc_align(64)]
     fn inherit_highest(self) {}
 }
 
@@ -90,7 +92,7 @@ trait HasDefaultImpl: Sized {
     // CHECK-LABEL: inherit_from_default_method
     // CHECK-LABEL: inherit_from_default_method
     // CHECK-SAME: align 32
-    #[align(32)]
+    #[rustc_align(32)]
     fn inherit_from_default_method(self) {}
 }
 
@@ -101,35 +103,35 @@ impl HasDefaultImpl for InstantiateDefaultMethods {}
 // CHECK-LABEL: align_specified_twice_1
 // CHECK-SAME: align 64
 #[unsafe(no_mangle)]
-#[align(32)]
-#[align(64)]
+#[rustc_align(32)]
+#[rustc_align(64)]
 pub fn align_specified_twice_1() {}
 
 // CHECK-LABEL: align_specified_twice_2
 // CHECK-SAME: align 128
 #[unsafe(no_mangle)]
-#[align(128)]
-#[align(32)]
+#[rustc_align(128)]
+#[rustc_align(32)]
 pub fn align_specified_twice_2() {}
 
 // CHECK-LABEL: align_specified_twice_3
 // CHECK-SAME: align 256
 #[unsafe(no_mangle)]
-#[align(32)]
-#[align(256)]
+#[rustc_align(32)]
+#[rustc_align(256)]
 pub fn align_specified_twice_3() {}
 
 const _: () = {
     // CHECK-LABEL: align_unmangled
     // CHECK-SAME: align 256
     #[unsafe(no_mangle)]
-    #[align(32)]
-    #[align(256)]
+    #[rustc_align(32)]
+    #[rustc_align(256)]
     extern "C" fn align_unmangled() {}
 };
 
 unsafe extern "C" {
-    #[align(256)]
+    #[rustc_align(256)]
     fn align_unmangled();
 }
 
@@ -137,5 +139,5 @@ unsafe extern "C" {
 // CHECK-LABEL: async_align
 // CHECK-SAME: align 64
 #[unsafe(no_mangle)]
-#[align(64)]
+#[rustc_align(64)]
 pub async fn async_align() {}
diff --git a/tests/codegen/gpu_offload/gpu_host.rs b/tests/codegen/gpu_offload/gpu_host.rs
new file mode 100644
index 00000000000..513e27426bc
--- /dev/null
+++ b/tests/codegen/gpu_offload/gpu_host.rs
@@ -0,0 +1,80 @@
+//@ compile-flags: -Zoffload=Enable -Zunstable-options -C opt-level=3  -Clto=fat
+//@ no-prefer-dynamic
+//@ needs-enzyme
+
+// This test is verifying that we generate __tgt_target_data_*_mapper before and after a call to the
+// kernel_1. Better documentation to what each global or variable means is available in the gpu
+// offlaod code, or the LLVM offload documentation. This code does not launch any GPU kernels yet,
+// and will be rewritten once a proper offload frontend has landed.
+//
+// We currently only handle memory transfer for specific calls to functions named `kernel_{num}`,
+// when inside of a function called main. This, too, is a temporary workaround for not having a
+// frontend.
+
+#![no_main]
+
+#[unsafe(no_mangle)]
+fn main() {
+    let mut x = [3.0; 256];
+    kernel_1(&mut x);
+    core::hint::black_box(&x);
+}
+
+// CHECK: %struct.__tgt_offload_entry = type { i64, i16, i16, i32, ptr, ptr, i64, i64, ptr }
+// CHECK: %struct.__tgt_kernel_arguments = type { i32, i32, ptr, ptr, ptr, ptr, ptr, ptr, i64, i64, [3 x i32], [3 x i32], i32 }
+// CHECK: %struct.ident_t = type { i32, i32, i32, i32, ptr }
+// CHECK: %struct.__tgt_bin_desc = type { i32, ptr, ptr, ptr }
+
+// CHECK: @.offload_sizes.1 = private unnamed_addr constant [1 x i64] [i64 1024]
+// CHECK: @.offload_maptypes.1 = private unnamed_addr constant [1 x i64] [i64 3]
+// CHECK: @.kernel_1.region_id = weak unnamed_addr constant i8 0
+// CHECK: @.offloading.entry_name.1 = internal unnamed_addr constant [9 x i8] c"kernel_1\00", section ".llvm.rodata.offloading", align 1
+// CHECK: @.offloading.entry.kernel_1 = weak constant %struct.__tgt_offload_entry { i64 0, i16 1, i16 1, i32 0, ptr @.kernel_1.region_id, ptr @.offloading.entry_name.1, i64 0, i64 0, ptr null }, section ".omp_offloading_entries", align 1
+// CHECK: @my_struct_global2 = external global %struct.__tgt_kernel_arguments
+// CHECK: @0 = private unnamed_addr constant [23 x i8] c";unknown;unknown;0;0;;\00", align 1
+// CHECK: @1 = private unnamed_addr constant %struct.ident_t { i32 0, i32 2, i32 0, i32 22, ptr @0 }, align 8
+
+// CHECK:  Function Attrs:
+// CHECK-NEXT: define{{( dso_local)?}} void @main()
+// CHECK-NEXT: start:
+// CHECK-NEXT:   %0 = alloca [8 x i8], align 8
+// CHECK-NEXT:   %x = alloca [1024 x i8], align 16
+// CHECK-NEXT:   %EmptyDesc = alloca %struct.__tgt_bin_desc, align 8
+// CHECK-NEXT:   %.offload_baseptrs = alloca [1 x ptr], align 8
+// CHECK-NEXT:   %.offload_ptrs = alloca [1 x ptr], align 8
+// CHECK-NEXT:   %.offload_sizes = alloca [1 x i64], align 8
+// CHECK-NEXT:   %x.addr = alloca ptr, align 8
+// CHECK-NEXT:   store ptr %x, ptr %x.addr, align 8
+// CHECK-NEXT:   %1 = load ptr, ptr %x.addr, align 8
+// CHECK-NEXT:   %2 = getelementptr inbounds float, ptr %1, i32 0
+// CHECK:        call void @llvm.memset.p0.i64(ptr align 8 %EmptyDesc, i8 0, i64 32, i1 false)
+// CHECK-NEXT:   call void @__tgt_register_lib(ptr %EmptyDesc)
+// CHECK-NEXT:   call void @__tgt_init_all_rtls()
+// CHECK-NEXT:   %3 = getelementptr inbounds [1 x ptr], ptr %.offload_baseptrs, i32 0, i32 0
+// CHECK-NEXT:   store ptr %1, ptr %3, align 8
+// CHECK-NEXT:   %4 = getelementptr inbounds [1 x ptr], ptr %.offload_ptrs, i32 0, i32 0
+// CHECK-NEXT:   store ptr %2, ptr %4, align 8
+// CHECK-NEXT:   %5 = getelementptr inbounds [1 x i64], ptr %.offload_sizes, i32 0, i32 0
+// CHECK-NEXT:   store i64 1024, ptr %5, align 8
+// CHECK-NEXT:   %6 = getelementptr inbounds [1 x ptr], ptr %.offload_baseptrs, i32 0, i32 0
+// CHECK-NEXT:   %7 = getelementptr inbounds [1 x ptr], ptr %.offload_ptrs, i32 0, i32 0
+// CHECK-NEXT:   %8 = getelementptr inbounds [1 x i64], ptr %.offload_sizes, i32 0, i32 0
+// CHECK-NEXT:   call void @__tgt_target_data_begin_mapper(ptr @1, i64 -1, i32 1, ptr %6, ptr %7, ptr %8, ptr @.offload_maptypes.1, ptr null, ptr null)
+// CHECK-NEXT:   call void @kernel_1(ptr noalias noundef nonnull align 4 dereferenceable(1024) %x)
+// CHECK-NEXT:   %9 = getelementptr inbounds [1 x ptr], ptr %.offload_baseptrs, i32 0, i32 0
+// CHECK-NEXT:   %10 = getelementptr inbounds [1 x ptr], ptr %.offload_ptrs, i32 0, i32 0
+// CHECK-NEXT:   %11 = getelementptr inbounds [1 x i64], ptr %.offload_sizes, i32 0, i32 0
+// CHECK-NEXT:   call void @__tgt_target_data_end_mapper(ptr @1, i64 -1, i32 1, ptr %9, ptr %10, ptr %11, ptr @.offload_maptypes.1, ptr null, ptr null)
+// CHECK-NEXT:   call void @__tgt_unregister_lib(ptr %EmptyDesc)
+// CHECK:        store ptr %x, ptr %0, align 8
+// CHECK-NEXT:   call void asm sideeffect "", "r,~{memory}"(ptr nonnull %0)
+// CHECK:        ret void
+// CHECK-NEXT: }
+
+#[unsafe(no_mangle)]
+#[inline(never)]
+pub fn kernel_1(x: &mut [f32; 256]) {
+    for i in 0..256 {
+        x[i] = 21.0;
+    }
+}
diff --git a/tests/codegen/min-function-alignment.rs b/tests/codegen/min-function-alignment.rs
index 6a3843b0f4f..ea5f957e81f 100644
--- a/tests/codegen/min-function-alignment.rs
+++ b/tests/codegen/min-function-alignment.rs
@@ -5,6 +5,8 @@
 //@ ignore-wasm32 aligning functions is not currently supported on wasm (#143368)
 
 #![crate_type = "lib"]
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
 
 // Functions without explicit alignment use the global minimum.
@@ -21,7 +23,7 @@ pub fn no_explicit_align() {}
 // align16: align 16
 // align1024: align 1024
 #[no_mangle]
-#[align(8)]
+#[rustc_align(8)]
 pub fn lower_align() {}
 
 // the higher value of min-function-alignment and the align attribute wins out
@@ -30,7 +32,7 @@ pub fn lower_align() {}
 // align16: align 32
 // align1024: align 1024
 #[no_mangle]
-#[align(32)]
+#[rustc_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 2648b0213ca..d7281c4219a 100644
--- a/tests/codegen/naked-fn/aligned.rs
+++ b/tests/codegen/naked-fn/aligned.rs
@@ -4,12 +4,15 @@
 //@ ignore-wasm32 aligning functions is not currently supported on wasm (#143368)
 
 #![crate_type = "lib"]
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
+
 use std::arch::naked_asm;
 
 // CHECK: .balign 16
 // CHECK-LABEL: naked_empty:
-#[align(16)]
+#[rustc_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 4ebaacd3eff..406e9334fa5 100644
--- a/tests/codegen/naked-fn/min-function-alignment.rs
+++ b/tests/codegen/naked-fn/min-function-alignment.rs
@@ -3,6 +3,8 @@
 //@ ignore-arm no "ret" mnemonic
 //@ ignore-wasm32 aligning functions is not currently supported on wasm (#143368)
 
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
 #![crate_type = "lib"]
 
@@ -17,7 +19,7 @@ pub extern "C" fn naked_no_explicit_align() {
 
 // CHECK: .balign 16
 #[no_mangle]
-#[align(8)]
+#[rustc_align(8)]
 #[unsafe(naked)]
 pub extern "C" fn naked_lower_align() {
     core::arch::naked_asm!("ret")
@@ -25,7 +27,7 @@ pub extern "C" fn naked_lower_align() {
 
 // CHECK: .balign 32
 #[no_mangle]
-#[align(32)]
+#[rustc_align(32)]
 #[unsafe(naked)]
 pub extern "C" fn naked_higher_align() {
     core::arch::naked_asm!("ret")
diff --git a/tests/ui-fulldeps/stable-mir/check_abi.rs b/tests/ui-fulldeps/rustc_public/check_abi.rs
index fc2227d147d..57c8377ea36 100644
--- a/tests/ui-fulldeps/stable-mir/check_abi.rs
+++ b/tests/ui-fulldeps/rustc_public/check_abi.rs
@@ -167,7 +167,7 @@ impl MirVisitor for AdtDefVisitor {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "alloc_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_allocation.rs b/tests/ui-fulldeps/rustc_public/check_allocation.rs
index 83845a9aa42..70e4ee3fe34 100644
--- a/tests/ui-fulldeps/stable-mir/check_allocation.rs
+++ b/tests/ui-fulldeps/rustc_public/check_allocation.rs
@@ -202,7 +202,7 @@ fn get_item<'a>(
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "alloc_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_assoc_items.rs b/tests/ui-fulldeps/rustc_public/check_assoc_items.rs
index 1557991f8ca..1557991f8ca 100644
--- a/tests/ui-fulldeps/stable-mir/check_assoc_items.rs
+++ b/tests/ui-fulldeps/rustc_public/check_assoc_items.rs
diff --git a/tests/ui-fulldeps/stable-mir/check_attribute.rs b/tests/ui-fulldeps/rustc_public/check_attribute.rs
index d8807872ec4..0c34ac4dfe9 100644
--- a/tests/ui-fulldeps/stable-mir/check_attribute.rs
+++ b/tests/ui-fulldeps/rustc_public/check_attribute.rs
@@ -52,7 +52,7 @@ fn get_item<'a>(
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "attribute_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_binop.rs b/tests/ui-fulldeps/rustc_public/check_binop.rs
index aa089a5d125..35be6f973cc 100644
--- a/tests/ui-fulldeps/stable-mir/check_binop.rs
+++ b/tests/ui-fulldeps/rustc_public/check_binop.rs
@@ -76,7 +76,7 @@ impl<'a> MirVisitor for Visitor<'a> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "binop_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_coroutine_body.rs b/tests/ui-fulldeps/rustc_public/check_coroutine_body.rs
index 725b538b0fe..725b538b0fe 100644
--- a/tests/ui-fulldeps/stable-mir/check_coroutine_body.rs
+++ b/tests/ui-fulldeps/rustc_public/check_coroutine_body.rs
diff --git a/tests/ui-fulldeps/stable-mir/check_crate_defs.rs b/tests/ui-fulldeps/rustc_public/check_crate_defs.rs
index 27d5b0bc238..3ca8b66e58d 100644
--- a/tests/ui-fulldeps/stable-mir/check_crate_defs.rs
+++ b/tests/ui-fulldeps/rustc_public/check_crate_defs.rs
@@ -79,7 +79,7 @@ fn contains<T: CrateDef + std::fmt::Debug>(items: &[T], expected: &[&str]) {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "crate_definitions.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_def_ty.rs b/tests/ui-fulldeps/rustc_public/check_def_ty.rs
index b5954352dc0..176a9d79ef1 100644
--- a/tests/ui-fulldeps/stable-mir/check_def_ty.rs
+++ b/tests/ui-fulldeps/rustc_public/check_def_ty.rs
@@ -70,7 +70,7 @@ fn check_fn_def(ty: Ty) {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "defs_ty_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_defs.rs b/tests/ui-fulldeps/rustc_public/check_defs.rs
index 5e45f19cac8..0c45859a132 100644
--- a/tests/ui-fulldeps/stable-mir/check_defs.rs
+++ b/tests/ui-fulldeps/rustc_public/check_defs.rs
@@ -106,7 +106,7 @@ fn get_instances(body: mir::Body) -> Vec<Instance> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "defs_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_foreign.rs b/tests/ui-fulldeps/rustc_public/check_foreign.rs
index 9aee067f41b..78b62594c61 100644
--- a/tests/ui-fulldeps/stable-mir/check_foreign.rs
+++ b/tests/ui-fulldeps/rustc_public/check_foreign.rs
@@ -52,7 +52,7 @@ fn test_foreign() -> ControlFlow<()> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "foreign_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_instance.rs b/tests/ui-fulldeps/rustc_public/check_instance.rs
index 18971076043..fd7523963fa 100644
--- a/tests/ui-fulldeps/stable-mir/check_instance.rs
+++ b/tests/ui-fulldeps/rustc_public/check_instance.rs
@@ -81,7 +81,7 @@ fn test_body(body: mir::Body) {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "instance_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_intrinsics.rs b/tests/ui-fulldeps/rustc_public/check_intrinsics.rs
index 854ac77956e..f722f0bbd71 100644
--- a/tests/ui-fulldeps/stable-mir/check_intrinsics.rs
+++ b/tests/ui-fulldeps/rustc_public/check_intrinsics.rs
@@ -110,7 +110,7 @@ impl<'a> MirVisitor for CallsVisitor<'a> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "binop_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_item_kind.rs b/tests/ui-fulldeps/rustc_public/check_item_kind.rs
index 58e740bdaef..b759628f1a4 100644
--- a/tests/ui-fulldeps/stable-mir/check_item_kind.rs
+++ b/tests/ui-fulldeps/rustc_public/check_item_kind.rs
@@ -41,7 +41,7 @@ fn test_item_kind() -> ControlFlow<()> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "item_kind_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_normalization.rs b/tests/ui-fulldeps/rustc_public/check_normalization.rs
index aa6a257dac6..db9d3031600 100644
--- a/tests/ui-fulldeps/stable-mir/check_normalization.rs
+++ b/tests/ui-fulldeps/rustc_public/check_normalization.rs
@@ -55,7 +55,7 @@ fn check_ty(ty: Ty) {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "normalization_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_trait_queries.rs b/tests/ui-fulldeps/rustc_public/check_trait_queries.rs
index a6c37883643..0dd13044fcc 100644
--- a/tests/ui-fulldeps/stable-mir/check_trait_queries.rs
+++ b/tests/ui-fulldeps/rustc_public/check_trait_queries.rs
@@ -67,7 +67,7 @@ fn assert_impl(impl_names: &HashSet<String>, target: &str) {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "trait_queries.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_transform.rs b/tests/ui-fulldeps/rustc_public/check_transform.rs
index 3209fcf9ede..b30d98c3b26 100644
--- a/tests/ui-fulldeps/stable-mir/check_transform.rs
+++ b/tests/ui-fulldeps/rustc_public/check_transform.rs
@@ -115,7 +115,7 @@ fn get_item<'a>(
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "transform_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_ty_fold.rs b/tests/ui-fulldeps/rustc_public/check_ty_fold.rs
index 07ef0d2bb50..93cd3049344 100644
--- a/tests/ui-fulldeps/stable-mir/check_ty_fold.rs
+++ b/tests/ui-fulldeps/rustc_public/check_ty_fold.rs
@@ -73,7 +73,7 @@ impl<'a> MirVisitor for PlaceVisitor<'a> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "ty_fold_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/check_variant.rs b/tests/ui-fulldeps/rustc_public/check_variant.rs
index ebe76bd89d5..9ed16f2357c 100644
--- a/tests/ui-fulldeps/stable-mir/check_variant.rs
+++ b/tests/ui-fulldeps/rustc_public/check_variant.rs
@@ -120,7 +120,7 @@ fn check_statement_is_aggregate_assign(
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "defs_ty_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/closure-generic-body.rs b/tests/ui-fulldeps/rustc_public/closure-generic-body.rs
index e5f910fbda1..e5f910fbda1 100644
--- a/tests/ui-fulldeps/stable-mir/closure-generic-body.rs
+++ b/tests/ui-fulldeps/rustc_public/closure-generic-body.rs
diff --git a/tests/ui-fulldeps/stable-mir/closure_body.rs b/tests/ui-fulldeps/rustc_public/closure_body.rs
index f5f9f23ad12..f5f9f23ad12 100644
--- a/tests/ui-fulldeps/stable-mir/closure_body.rs
+++ b/tests/ui-fulldeps/rustc_public/closure_body.rs
diff --git a/tests/ui-fulldeps/stable-mir/compilation-result.rs b/tests/ui-fulldeps/rustc_public/compilation-result.rs
index ed013375c71..d33e602e819 100644
--- a/tests/ui-fulldeps/stable-mir/compilation-result.rs
+++ b/tests/ui-fulldeps/rustc_public/compilation-result.rs
@@ -20,7 +20,7 @@ use std::io::Write;
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "input_compilation_result_test.rs";
diff --git a/tests/ui-fulldeps/stable-mir/crate-info.rs b/tests/ui-fulldeps/rustc_public/crate-info.rs
index 4f46dff9b82..19082d7394a 100644
--- a/tests/ui-fulldeps/stable-mir/crate-info.rs
+++ b/tests/ui-fulldeps/rustc_public/crate-info.rs
@@ -189,7 +189,7 @@ fn get_item<'a>(
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/projections.rs b/tests/ui-fulldeps/rustc_public/projections.rs
index 3b360cd2fcf..e0213b4253c 100644
--- a/tests/ui-fulldeps/stable-mir/projections.rs
+++ b/tests/ui-fulldeps/rustc_public/projections.rs
@@ -141,7 +141,7 @@ fn get_item<'a>(
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/smir_internal.rs b/tests/ui-fulldeps/rustc_public/smir_internal.rs
index dd70cfe5f5e..b74bdfe4eb1 100644
--- a/tests/ui-fulldeps/stable-mir/smir_internal.rs
+++ b/tests/ui-fulldeps/rustc_public/smir_internal.rs
@@ -34,7 +34,7 @@ fn test_translation(tcx: TyCtxt<'_>) -> ControlFlow<()> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "internal_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/smir_serde.rs b/tests/ui-fulldeps/rustc_public/smir_serde.rs
index 31642c6cb94..972bc5efe20 100644
--- a/tests/ui-fulldeps/stable-mir/smir_serde.rs
+++ b/tests/ui-fulldeps/rustc_public/smir_serde.rs
@@ -41,7 +41,7 @@ fn serialize_to_json(_tcx: TyCtxt<'_>) -> ControlFlow<()> {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "internal_input.rs";
diff --git a/tests/ui-fulldeps/stable-mir/smir_visitor.rs b/tests/ui-fulldeps/rustc_public/smir_visitor.rs
index 66787e2927b..9438f46a59b 100644
--- a/tests/ui-fulldeps/stable-mir/smir_visitor.rs
+++ b/tests/ui-fulldeps/rustc_public/smir_visitor.rs
@@ -177,7 +177,7 @@ impl mir::MutMirVisitor for TestMutVisitor {
 
 /// This test will generate and analyze a dummy crate using the stable mir.
 /// For that, it will first write the dummy crate into a file.
-/// Then it will create a `StableMir` using custom arguments and then
+/// Then it will create a `RustcPublic` using custom arguments and then
 /// it will run the compiler.
 fn main() {
     let path = "sim_visitor_input.rs";
diff --git a/tests/ui/asm/naked-with-invalid-repr-attr.rs b/tests/ui/asm/naked-with-invalid-repr-attr.rs
index bfbbf29a69e..4620d007e4e 100644
--- a/tests/ui/asm/naked-with-invalid-repr-attr.rs
+++ b/tests/ui/asm/naked-with-invalid-repr-attr.rs
@@ -1,5 +1,9 @@
 //@ needs-asm-support
+
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
+
 #![crate_type = "lib"]
 use std::arch::naked_asm;
 
@@ -21,7 +25,7 @@ extern "C" fn example2() {
 
 #[repr(C)]
 //~^ ERROR attribute should be applied to a struct, enum, or union [E0517]
-#[align(16)]
+#[rustc_align(16)]
 #[unsafe(naked)]
 extern "C" fn example3() {
     //~^ NOTE not a struct, enum, or union
diff --git a/tests/ui/asm/naked-with-invalid-repr-attr.stderr b/tests/ui/asm/naked-with-invalid-repr-attr.stderr
index 4eb4a4e5a04..8530495be66 100644
--- a/tests/ui/asm/naked-with-invalid-repr-attr.stderr
+++ b/tests/ui/asm/naked-with-invalid-repr-attr.stderr
@@ -1,5 +1,5 @@
 error[E0517]: attribute should be applied to a struct, enum, or union
-  --> $DIR/naked-with-invalid-repr-attr.rs:6:8
+  --> $DIR/naked-with-invalid-repr-attr.rs:10:8
    |
 LL |   #[repr(C)]
    |          ^
@@ -11,7 +11,7 @@ LL | | }
    | |_- not a struct, enum, or union
 
 error[E0517]: attribute should be applied to a struct, enum, or union
-  --> $DIR/naked-with-invalid-repr-attr.rs:14:8
+  --> $DIR/naked-with-invalid-repr-attr.rs:18:8
    |
 LL |   #[repr(transparent)]
    |          ^^^^^^^^^^^
@@ -23,7 +23,7 @@ LL | | }
    | |_- not a struct, enum, or union
 
 error[E0517]: attribute should be applied to a struct, enum, or union
-  --> $DIR/naked-with-invalid-repr-attr.rs:22:8
+  --> $DIR/naked-with-invalid-repr-attr.rs:26:8
    |
 LL |   #[repr(C)]
    |          ^
@@ -35,7 +35,7 @@ LL | | }
    | |_- not a struct, enum, or union
 
 error[E0517]: attribute should be applied to a struct, enum, or union
-  --> $DIR/naked-with-invalid-repr-attr.rs:32:8
+  --> $DIR/naked-with-invalid-repr-attr.rs:36:8
    |
 LL |   #[repr(C, packed)]
    |          ^
@@ -48,7 +48,7 @@ LL | | }
    | |_- not a struct, enum, or union
 
 error[E0517]: attribute should be applied to a struct or union
-  --> $DIR/naked-with-invalid-repr-attr.rs:32:11
+  --> $DIR/naked-with-invalid-repr-attr.rs:36:11
    |
 LL |   #[repr(C, packed)]
    |             ^^^^^^
@@ -61,7 +61,7 @@ LL | | }
    | |_- not a struct or union
 
 error[E0517]: attribute should be applied to an enum
-  --> $DIR/naked-with-invalid-repr-attr.rs:42:8
+  --> $DIR/naked-with-invalid-repr-attr.rs:46:8
    |
 LL |   #[repr(u8)]
    |          ^^
diff --git a/tests/ui/attributes/fn-align-dyn.rs b/tests/ui/attributes/fn-align-dyn.rs
index 8ba4d5e2897..3778c75a2ca 100644
--- a/tests/ui/attributes/fn-align-dyn.rs
+++ b/tests/ui/attributes/fn-align-dyn.rs
@@ -1,12 +1,15 @@
 //@ run-pass
 //@ ignore-wasm32 aligning functions is not currently supported on wasm (#143368)
+
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
 
 trait Test {
-    #[align(4096)]
+    #[rustc_align(4096)]
     fn foo(&self);
 
-    #[align(4096)]
+    #[rustc_align(4096)]
     fn foo1(&self);
 }
 
diff --git a/tests/ui/attributes/fn-align-nameres-ambiguity-143834.rs b/tests/ui/attributes/fn-align-nameres-ambiguity-143834.rs
new file mode 100644
index 00000000000..536d6ff43fb
--- /dev/null
+++ b/tests/ui/attributes/fn-align-nameres-ambiguity-143834.rs
@@ -0,0 +1,19 @@
+// Anti-regression test to demonstrate that at least we mitigated breakage from adding a new
+// `#[align]` built-in attribute.
+//
+// See https://github.com/rust-lang/rust/issues/143834.
+
+//@ check-pass
+
+// Needs edition >= 2018 macro use behavior.
+//@ edition: 2018
+
+macro_rules! align {
+    () => {
+        /* .. */
+    };
+}
+
+pub(crate) use align;
+
+fn main() {}
diff --git a/tests/ui/attributes/malformed-attrs.rs b/tests/ui/attributes/malformed-attrs.rs
index 5026687b97b..d4c6ecaa189 100644
--- a/tests/ui/attributes/malformed-attrs.rs
+++ b/tests/ui/attributes/malformed-attrs.rs
@@ -3,6 +3,7 @@
 #![feature(rustc_attrs)]
 #![feature(rustc_allow_const_fn_unstable)]
 #![feature(allow_internal_unstable)]
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
 #![feature(fn_align)]
 #![feature(optimize_attribute)]
 #![feature(dropck_eyepatch)]
@@ -53,7 +54,7 @@
 #[inline = 5]
 //~^ ERROR valid forms for the attribute are
 //~| WARN this was previously accepted by the compiler
-#[align]
+#[rustc_align]
 //~^ ERROR malformed
 #[optimize]
 //~^ ERROR malformed
diff --git a/tests/ui/attributes/malformed-attrs.stderr b/tests/ui/attributes/malformed-attrs.stderr
index 0d0c338d302..de53af851a3 100644
--- a/tests/ui/attributes/malformed-attrs.stderr
+++ b/tests/ui/attributes/malformed-attrs.stderr
@@ -1,5 +1,5 @@
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/malformed-attrs.rs:102:1
+  --> $DIR/malformed-attrs.rs:103:1
    |
 LL | #[cfg]
    | ^^^^^^
@@ -8,7 +8,7 @@ LL | #[cfg]
    | help: must be of the form: `#[cfg(predicate)]`
 
 error: malformed `cfg_attr` attribute input
-  --> $DIR/malformed-attrs.rs:104:1
+  --> $DIR/malformed-attrs.rs:105:1
    |
 LL | #[cfg_attr]
    | ^^^^^^^^^^^
@@ -20,67 +20,67 @@ LL | #[cfg_attr(condition, attribute, other_attribute, ...)]
    |           ++++++++++++++++++++++++++++++++++++++++++++
 
 error[E0463]: can't find crate for `wloop`
-  --> $DIR/malformed-attrs.rs:211:1
+  --> $DIR/malformed-attrs.rs:212:1
    |
 LL | extern crate wloop;
    | ^^^^^^^^^^^^^^^^^^^ can't find crate
 
 error: malformed `windows_subsystem` attribute input
-  --> $DIR/malformed-attrs.rs:29:1
+  --> $DIR/malformed-attrs.rs:30:1
    |
 LL | #![windows_subsystem]
    | ^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#![windows_subsystem = "windows|console"]`
 
 error: malformed `crate_name` attribute input
-  --> $DIR/malformed-attrs.rs:74:1
+  --> $DIR/malformed-attrs.rs:75:1
    |
 LL | #[crate_name]
    | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]`
 
 error: malformed `no_sanitize` attribute input
-  --> $DIR/malformed-attrs.rs:92:1
+  --> $DIR/malformed-attrs.rs:93:1
    |
 LL | #[no_sanitize]
    | ^^^^^^^^^^^^^^ help: must be of the form: `#[no_sanitize(address, kcfi, memory, thread)]`
 
 error: malformed `proc_macro` attribute input
-  --> $DIR/malformed-attrs.rs:99:1
+  --> $DIR/malformed-attrs.rs:100:1
    |
 LL | #[proc_macro = 18]
    | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro]`
 
 error: malformed `instruction_set` attribute input
-  --> $DIR/malformed-attrs.rs:106:1
+  --> $DIR/malformed-attrs.rs:107:1
    |
 LL | #[instruction_set]
    | ^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[instruction_set(set)]`
 
 error: malformed `patchable_function_entry` attribute input
-  --> $DIR/malformed-attrs.rs:108:1
+  --> $DIR/malformed-attrs.rs:109:1
    |
 LL | #[patchable_function_entry]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[patchable_function_entry(prefix_nops = m, entry_nops = n)]`
 
 error: malformed `coroutine` attribute input
-  --> $DIR/malformed-attrs.rs:111:5
+  --> $DIR/malformed-attrs.rs:112:5
    |
 LL |     #[coroutine = 63] || {}
    |     ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[coroutine]`
 
 error: malformed `proc_macro_attribute` attribute input
-  --> $DIR/malformed-attrs.rs:116:1
+  --> $DIR/malformed-attrs.rs:117:1
    |
 LL | #[proc_macro_attribute = 19]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro_attribute]`
 
 error: malformed `proc_macro_derive` attribute input
-  --> $DIR/malformed-attrs.rs:123:1
+  --> $DIR/malformed-attrs.rs:124:1
    |
 LL | #[proc_macro_derive]
    | ^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[proc_macro_derive(TraitName, /*opt*/ attributes(name1, name2, ...))]`
 
 error: malformed `must_not_suspend` attribute input
-  --> $DIR/malformed-attrs.rs:132:1
+  --> $DIR/malformed-attrs.rs:133:1
    |
 LL | #[must_not_suspend()]
    | ^^^^^^^^^^^^^^^^^^^^^
@@ -95,67 +95,67 @@ LL + #[must_not_suspend]
    |
 
 error: malformed `cfi_encoding` attribute input
-  --> $DIR/malformed-attrs.rs:134:1
+  --> $DIR/malformed-attrs.rs:135:1
    |
 LL | #[cfi_encoding]
    | ^^^^^^^^^^^^^^^ help: must be of the form: `#[cfi_encoding = "encoding"]`
 
 error: malformed `linkage` attribute input
-  --> $DIR/malformed-attrs.rs:173:5
+  --> $DIR/malformed-attrs.rs:174:5
    |
 LL |     #[linkage]
    |     ^^^^^^^^^^ help: must be of the form: `#[linkage = "external|internal|..."]`
 
 error: malformed `allow` attribute input
-  --> $DIR/malformed-attrs.rs:178:1
+  --> $DIR/malformed-attrs.rs:179:1
    |
 LL | #[allow]
    | ^^^^^^^^ help: must be of the form: `#[allow(lint1, lint2, ..., /*opt*/ reason = "...")]`
 
 error: malformed `expect` attribute input
-  --> $DIR/malformed-attrs.rs:180:1
+  --> $DIR/malformed-attrs.rs:181:1
    |
 LL | #[expect]
    | ^^^^^^^^^ help: must be of the form: `#[expect(lint1, lint2, ..., /*opt*/ reason = "...")]`
 
 error: malformed `warn` attribute input
-  --> $DIR/malformed-attrs.rs:182:1
+  --> $DIR/malformed-attrs.rs:183:1
    |
 LL | #[warn]
    | ^^^^^^^ help: must be of the form: `#[warn(lint1, lint2, ..., /*opt*/ reason = "...")]`
 
 error: malformed `deny` attribute input
-  --> $DIR/malformed-attrs.rs:184:1
+  --> $DIR/malformed-attrs.rs:185:1
    |
 LL | #[deny]
    | ^^^^^^^ help: must be of the form: `#[deny(lint1, lint2, ..., /*opt*/ reason = "...")]`
 
 error: malformed `forbid` attribute input
-  --> $DIR/malformed-attrs.rs:186:1
+  --> $DIR/malformed-attrs.rs:187:1
    |
 LL | #[forbid]
    | ^^^^^^^^^ help: must be of the form: `#[forbid(lint1, lint2, ..., /*opt*/ reason = "...")]`
 
 error: malformed `debugger_visualizer` attribute input
-  --> $DIR/malformed-attrs.rs:188:1
+  --> $DIR/malformed-attrs.rs:189:1
    |
 LL | #[debugger_visualizer]
    | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[debugger_visualizer(natvis_file = "...", gdb_script_file = "...")]`
 
 error: malformed `thread_local` attribute input
-  --> $DIR/malformed-attrs.rs:203:1
+  --> $DIR/malformed-attrs.rs:204:1
    |
 LL | #[thread_local()]
    | ^^^^^^^^^^^^^^^^^ help: must be of the form: `#[thread_local]`
 
 error: malformed `no_link` attribute input
-  --> $DIR/malformed-attrs.rs:207:1
+  --> $DIR/malformed-attrs.rs:208:1
    |
 LL | #[no_link()]
    | ^^^^^^^^^^^^ help: must be of the form: `#[no_link]`
 
 error: malformed `macro_use` attribute input
-  --> $DIR/malformed-attrs.rs:209:1
+  --> $DIR/malformed-attrs.rs:210:1
    |
 LL | #[macro_use = 1]
    | ^^^^^^^^^^^^^^^^
@@ -170,7 +170,7 @@ LL + #[macro_use]
    |
 
 error: malformed `macro_export` attribute input
-  --> $DIR/malformed-attrs.rs:214:1
+  --> $DIR/malformed-attrs.rs:215:1
    |
 LL | #[macro_export = 18]
    | ^^^^^^^^^^^^^^^^^^^^
@@ -185,31 +185,31 @@ LL + #[macro_export]
    |
 
 error: malformed `allow_internal_unsafe` attribute input
-  --> $DIR/malformed-attrs.rs:216:1
+  --> $DIR/malformed-attrs.rs:217:1
    |
 LL | #[allow_internal_unsafe = 1]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[allow_internal_unsafe]`
 
 error: the `#[proc_macro]` attribute is only usable with crates of the `proc-macro` crate type
-  --> $DIR/malformed-attrs.rs:99:1
+  --> $DIR/malformed-attrs.rs:100:1
    |
 LL | #[proc_macro = 18]
    | ^^^^^^^^^^^^^^^^^^
 
 error: the `#[proc_macro_attribute]` attribute is only usable with crates of the `proc-macro` crate type
-  --> $DIR/malformed-attrs.rs:116:1
+  --> $DIR/malformed-attrs.rs:117:1
    |
 LL | #[proc_macro_attribute = 19]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: the `#[proc_macro_derive]` attribute is only usable with crates of the `proc-macro` crate type
-  --> $DIR/malformed-attrs.rs:123:1
+  --> $DIR/malformed-attrs.rs:124:1
    |
 LL | #[proc_macro_derive]
    | ^^^^^^^^^^^^^^^^^^^^
 
 error[E0658]: allow_internal_unsafe side-steps the unsafe_code lint
-  --> $DIR/malformed-attrs.rs:216:1
+  --> $DIR/malformed-attrs.rs:217:1
    |
 LL | #[allow_internal_unsafe = 1]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -218,7 +218,7 @@ LL | #[allow_internal_unsafe = 1]
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
 error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
-  --> $DIR/malformed-attrs.rs:43:1
+  --> $DIR/malformed-attrs.rs:44:1
    |
 LL | #[doc]
    | ^^^^^^
@@ -228,7 +228,7 @@ LL | #[doc]
    = note: `#[deny(ill_formed_attribute_input)]` on by default
 
 error: valid forms for the attribute are `#[doc(hidden|inline|...)]` and `#[doc = "string"]`
-  --> $DIR/malformed-attrs.rs:76:1
+  --> $DIR/malformed-attrs.rs:77:1
    |
 LL | #[doc]
    | ^^^^^^
@@ -237,7 +237,7 @@ LL | #[doc]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 error: attribute must be of the form `#[link(name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...", /*opt*/ import_name_type = "decorated|noprefix|undecorated")]`
-  --> $DIR/malformed-attrs.rs:83:1
+  --> $DIR/malformed-attrs.rs:84:1
    |
 LL | #[link]
    | ^^^^^^^
@@ -246,7 +246,7 @@ LL | #[link]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 error: invalid argument
-  --> $DIR/malformed-attrs.rs:188:1
+  --> $DIR/malformed-attrs.rs:189:1
    |
 LL | #[debugger_visualizer]
    | ^^^^^^^^^^^^^^^^^^^^^^
@@ -256,7 +256,7 @@ LL | #[debugger_visualizer]
    = note: expected: `gdb_script_file = "..."`
 
 error[E0565]: malformed `omit_gdb_pretty_printer_section` attribute input
-  --> $DIR/malformed-attrs.rs:26:1
+  --> $DIR/malformed-attrs.rs:27:1
    |
 LL | #![omit_gdb_pretty_printer_section = 1]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---^
@@ -265,25 +265,25 @@ LL | #![omit_gdb_pretty_printer_section = 1]
    | help: must be of the form: `#[omit_gdb_pretty_printer_section]`
 
 error[E0539]: malformed `export_name` attribute input
-  --> $DIR/malformed-attrs.rs:32:1
+  --> $DIR/malformed-attrs.rs:33:1
    |
 LL | #[unsafe(export_name)]
    | ^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]`
 
 error: `rustc_allow_const_fn_unstable` expects a list of feature names
-  --> $DIR/malformed-attrs.rs:34:1
+  --> $DIR/malformed-attrs.rs:35:1
    |
 LL | #[rustc_allow_const_fn_unstable]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `allow_internal_unstable` expects a list of feature names
-  --> $DIR/malformed-attrs.rs:37:1
+  --> $DIR/malformed-attrs.rs:38:1
    |
 LL | #[allow_internal_unstable]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error[E0539]: malformed `rustc_confusables` attribute input
-  --> $DIR/malformed-attrs.rs:39:1
+  --> $DIR/malformed-attrs.rs:40:1
    |
 LL | #[rustc_confusables]
    | ^^^^^^^^^^^^^^^^^^^^
@@ -292,7 +292,7 @@ LL | #[rustc_confusables]
    | help: must be of the form: `#[rustc_confusables("name1", "name2", ...)]`
 
 error[E0539]: malformed `deprecated` attribute input
-  --> $DIR/malformed-attrs.rs:41:1
+  --> $DIR/malformed-attrs.rs:42:1
    |
 LL | #[deprecated = 5]
    | ^^^^^^^^^^^^^^^-^
@@ -312,13 +312,13 @@ LL + #[deprecated]
    |
 
 error[E0539]: malformed `rustc_macro_transparency` attribute input
-  --> $DIR/malformed-attrs.rs:46:1
+  --> $DIR/malformed-attrs.rs:47:1
    |
 LL | #[rustc_macro_transparency]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[rustc_macro_transparency = "transparent|semitransparent|opaque"]`
 
 error[E0539]: malformed `repr` attribute input
-  --> $DIR/malformed-attrs.rs:48:1
+  --> $DIR/malformed-attrs.rs:49:1
    |
 LL | #[repr]
    | ^^^^^^^
@@ -327,7 +327,7 @@ LL | #[repr]
    | help: must be of the form: `#[repr(C | Rust | align(...) | packed(...) | <integer type> | transparent)]`
 
 error[E0565]: malformed `rustc_as_ptr` attribute input
-  --> $DIR/malformed-attrs.rs:51:1
+  --> $DIR/malformed-attrs.rs:52:1
    |
 LL | #[rustc_as_ptr = 5]
    | ^^^^^^^^^^^^^^^---^
@@ -335,17 +335,17 @@ LL | #[rustc_as_ptr = 5]
    | |              didn't expect any arguments here
    | help: must be of the form: `#[rustc_as_ptr]`
 
-error[E0539]: malformed `align` attribute input
-  --> $DIR/malformed-attrs.rs:56:1
+error[E0539]: malformed `rustc_align` attribute input
+  --> $DIR/malformed-attrs.rs:57:1
    |
-LL | #[align]
-   | ^^^^^^^^
+LL | #[rustc_align]
+   | ^^^^^^^^^^^^^^
    | |
    | expected this to be a list
-   | help: must be of the form: `#[align(<alignment in bytes>)]`
+   | help: must be of the form: `#[rustc_align(<alignment in bytes>)]`
 
 error[E0539]: malformed `optimize` attribute input
-  --> $DIR/malformed-attrs.rs:58:1
+  --> $DIR/malformed-attrs.rs:59:1
    |
 LL | #[optimize]
    | ^^^^^^^^^^^
@@ -354,7 +354,7 @@ LL | #[optimize]
    | help: must be of the form: `#[optimize(size|speed|none)]`
 
 error[E0565]: malformed `cold` attribute input
-  --> $DIR/malformed-attrs.rs:60:1
+  --> $DIR/malformed-attrs.rs:61:1
    |
 LL | #[cold = 1]
    | ^^^^^^^---^
@@ -363,13 +363,13 @@ LL | #[cold = 1]
    | help: must be of the form: `#[cold]`
 
 error: valid forms for the attribute are `#[must_use = "reason"]` and `#[must_use]`
-  --> $DIR/malformed-attrs.rs:62:1
+  --> $DIR/malformed-attrs.rs:63:1
    |
 LL | #[must_use()]
    | ^^^^^^^^^^^^^
 
 error[E0565]: malformed `no_mangle` attribute input
-  --> $DIR/malformed-attrs.rs:64:1
+  --> $DIR/malformed-attrs.rs:65:1
    |
 LL | #[no_mangle = 1]
    | ^^^^^^^^^^^^---^
@@ -378,7 +378,7 @@ LL | #[no_mangle = 1]
    | help: must be of the form: `#[no_mangle]`
 
 error[E0565]: malformed `naked` attribute input
-  --> $DIR/malformed-attrs.rs:66:1
+  --> $DIR/malformed-attrs.rs:67:1
    |
 LL | #[unsafe(naked())]
    | ^^^^^^^^^^^^^^--^^
@@ -387,7 +387,7 @@ LL | #[unsafe(naked())]
    | help: must be of the form: `#[naked]`
 
 error[E0565]: malformed `track_caller` attribute input
-  --> $DIR/malformed-attrs.rs:68:1
+  --> $DIR/malformed-attrs.rs:69:1
    |
 LL | #[track_caller()]
    | ^^^^^^^^^^^^^^--^
@@ -396,13 +396,13 @@ LL | #[track_caller()]
    | help: must be of the form: `#[track_caller]`
 
 error[E0539]: malformed `export_name` attribute input
-  --> $DIR/malformed-attrs.rs:70:1
+  --> $DIR/malformed-attrs.rs:71:1
    |
 LL | #[export_name()]
    | ^^^^^^^^^^^^^^^^ help: must be of the form: `#[export_name = "name"]`
 
 error[E0805]: malformed `used` attribute input
-  --> $DIR/malformed-attrs.rs:72:1
+  --> $DIR/malformed-attrs.rs:73:1
    |
 LL | #[used()]
    | ^^^^^^--^
@@ -418,7 +418,7 @@ LL + #[used]
    |
 
 error[E0539]: malformed `target_feature` attribute input
-  --> $DIR/malformed-attrs.rs:79:1
+  --> $DIR/malformed-attrs.rs:80:1
    |
 LL | #[target_feature]
    | ^^^^^^^^^^^^^^^^^
@@ -427,7 +427,7 @@ LL | #[target_feature]
    | help: must be of the form: `#[target_feature(enable = "feat1, feat2")]`
 
 error[E0565]: malformed `export_stable` attribute input
-  --> $DIR/malformed-attrs.rs:81:1
+  --> $DIR/malformed-attrs.rs:82:1
    |
 LL | #[export_stable = 1]
    | ^^^^^^^^^^^^^^^^---^
@@ -436,19 +436,19 @@ LL | #[export_stable = 1]
    | help: must be of the form: `#[export_stable]`
 
 error[E0539]: malformed `link_name` attribute input
-  --> $DIR/malformed-attrs.rs:86:1
+  --> $DIR/malformed-attrs.rs:87:1
    |
 LL | #[link_name]
    | ^^^^^^^^^^^^ help: must be of the form: `#[link_name = "name"]`
 
 error[E0539]: malformed `link_section` attribute input
-  --> $DIR/malformed-attrs.rs:88:1
+  --> $DIR/malformed-attrs.rs:89:1
    |
 LL | #[link_section]
    | ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_section = "name"]`
 
 error[E0539]: malformed `coverage` attribute input
-  --> $DIR/malformed-attrs.rs:90:1
+  --> $DIR/malformed-attrs.rs:91:1
    |
 LL | #[coverage]
    | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument
@@ -461,7 +461,7 @@ LL | #[coverage(on)]
    |           ++++
 
 error[E0565]: malformed `no_implicit_prelude` attribute input
-  --> $DIR/malformed-attrs.rs:97:1
+  --> $DIR/malformed-attrs.rs:98:1
    |
 LL | #[no_implicit_prelude = 23]
    | ^^^^^^^^^^^^^^^^^^^^^^----^
@@ -470,7 +470,7 @@ LL | #[no_implicit_prelude = 23]
    | help: must be of the form: `#[no_implicit_prelude]`
 
 error[E0539]: malformed `must_use` attribute input
-  --> $DIR/malformed-attrs.rs:119:1
+  --> $DIR/malformed-attrs.rs:120:1
    |
 LL | #[must_use = 1]
    | ^^^^^^^^^^^^^-^
@@ -487,7 +487,7 @@ LL + #[must_use]
    |
 
 error[E0539]: malformed `rustc_layout_scalar_valid_range_start` attribute input
-  --> $DIR/malformed-attrs.rs:128:1
+  --> $DIR/malformed-attrs.rs:129:1
    |
 LL | #[rustc_layout_scalar_valid_range_start]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -496,7 +496,7 @@ LL | #[rustc_layout_scalar_valid_range_start]
    | help: must be of the form: `#[rustc_layout_scalar_valid_range_start(start)]`
 
 error[E0539]: malformed `rustc_layout_scalar_valid_range_end` attribute input
-  --> $DIR/malformed-attrs.rs:130:1
+  --> $DIR/malformed-attrs.rs:131:1
    |
 LL | #[rustc_layout_scalar_valid_range_end]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -505,7 +505,7 @@ LL | #[rustc_layout_scalar_valid_range_end]
    | help: must be of the form: `#[rustc_layout_scalar_valid_range_end(end)]`
 
 error[E0565]: malformed `marker` attribute input
-  --> $DIR/malformed-attrs.rs:155:1
+  --> $DIR/malformed-attrs.rs:156:1
    |
 LL | #[marker = 3]
    | ^^^^^^^^^---^
@@ -514,7 +514,7 @@ LL | #[marker = 3]
    | help: must be of the form: `#[marker]`
 
 error[E0565]: malformed `fundamental` attribute input
-  --> $DIR/malformed-attrs.rs:157:1
+  --> $DIR/malformed-attrs.rs:158:1
    |
 LL | #[fundamental()]
    | ^^^^^^^^^^^^^--^
@@ -523,7 +523,7 @@ LL | #[fundamental()]
    | help: must be of the form: `#[fundamental]`
 
 error[E0565]: malformed `ffi_pure` attribute input
-  --> $DIR/malformed-attrs.rs:165:5
+  --> $DIR/malformed-attrs.rs:166:5
    |
 LL |     #[unsafe(ffi_pure = 1)]
    |     ^^^^^^^^^^^^^^^^^^---^^
@@ -532,7 +532,7 @@ LL |     #[unsafe(ffi_pure = 1)]
    |     help: must be of the form: `#[ffi_pure]`
 
 error[E0539]: malformed `link_ordinal` attribute input
-  --> $DIR/malformed-attrs.rs:167:5
+  --> $DIR/malformed-attrs.rs:168:5
    |
 LL |     #[link_ordinal]
    |     ^^^^^^^^^^^^^^^
@@ -541,7 +541,7 @@ LL |     #[link_ordinal]
    |     help: must be of the form: `#[link_ordinal(ordinal)]`
 
 error[E0565]: malformed `ffi_const` attribute input
-  --> $DIR/malformed-attrs.rs:171:5
+  --> $DIR/malformed-attrs.rs:172:5
    |
 LL |     #[unsafe(ffi_const = 1)]
    |     ^^^^^^^^^^^^^^^^^^^---^^
@@ -550,7 +550,7 @@ LL |     #[unsafe(ffi_const = 1)]
    |     help: must be of the form: `#[ffi_const]`
 
 error[E0565]: malformed `automatically_derived` attribute input
-  --> $DIR/malformed-attrs.rs:191:1
+  --> $DIR/malformed-attrs.rs:192:1
    |
 LL | #[automatically_derived = 18]
    | ^^^^^^^^^^^^^^^^^^^^^^^^----^
@@ -559,7 +559,7 @@ LL | #[automatically_derived = 18]
    | help: must be of the form: `#[automatically_derived]`
 
 error[E0565]: malformed `non_exhaustive` attribute input
-  --> $DIR/malformed-attrs.rs:197:1
+  --> $DIR/malformed-attrs.rs:198:1
    |
 LL | #[non_exhaustive = 1]
    | ^^^^^^^^^^^^^^^^^---^
@@ -568,7 +568,7 @@ LL | #[non_exhaustive = 1]
    | help: must be of the form: `#[non_exhaustive]`
 
 error[E0565]: malformed `type_const` attribute input
-  --> $DIR/malformed-attrs.rs:143:5
+  --> $DIR/malformed-attrs.rs:144:5
    |
 LL |     #[type_const = 1]
    |     ^^^^^^^^^^^^^---^
@@ -577,7 +577,7 @@ LL |     #[type_const = 1]
    |     help: must be of the form: `#[type_const]`
 
 error: attribute should be applied to `const fn`
-  --> $DIR/malformed-attrs.rs:34:1
+  --> $DIR/malformed-attrs.rs:35:1
    |
 LL |   #[rustc_allow_const_fn_unstable]
    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -589,19 +589,19 @@ LL | | }
    | |_- not a `const fn`
 
 error: `#[repr(align(...))]` is not supported on function items
-  --> $DIR/malformed-attrs.rs:48:1
+  --> $DIR/malformed-attrs.rs:49:1
    |
 LL | #[repr]
    | ^^^^^^^
    |
-help: use `#[align(...)]` instead
-  --> $DIR/malformed-attrs.rs:48:1
+help: use `#[rustc_align(...)]` instead
+  --> $DIR/malformed-attrs.rs:49:1
    |
 LL | #[repr]
    | ^^^^^^^
 
 warning: `#[diagnostic::do_not_recommend]` does not expect any arguments
-  --> $DIR/malformed-attrs.rs:149:1
+  --> $DIR/malformed-attrs.rs:150:1
    |
 LL | #[diagnostic::do_not_recommend()]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -609,7 +609,7 @@ LL | #[diagnostic::do_not_recommend()]
    = note: `#[warn(malformed_diagnostic_attributes)]` on by default
 
 warning: missing options for `on_unimplemented` attribute
-  --> $DIR/malformed-attrs.rs:138:1
+  --> $DIR/malformed-attrs.rs:139:1
    |
 LL | #[diagnostic::on_unimplemented]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -617,7 +617,7 @@ LL | #[diagnostic::on_unimplemented]
    = help: at least one of the `message`, `note` and `label` options are expected
 
 warning: malformed `on_unimplemented` attribute
-  --> $DIR/malformed-attrs.rs:140:1
+  --> $DIR/malformed-attrs.rs:141:1
    |
 LL | #[diagnostic::on_unimplemented = 1]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ invalid option found here
@@ -625,7 +625,7 @@ LL | #[diagnostic::on_unimplemented = 1]
    = help: only `message`, `note` and `label` are allowed as options
 
 error: valid forms for the attribute are `#[inline(always|never)]` and `#[inline]`
-  --> $DIR/malformed-attrs.rs:53:1
+  --> $DIR/malformed-attrs.rs:54:1
    |
 LL | #[inline = 5]
    | ^^^^^^^^^^^^^
@@ -634,7 +634,7 @@ LL | #[inline = 5]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
-  --> $DIR/malformed-attrs.rs:94:1
+  --> $DIR/malformed-attrs.rs:95:1
    |
 LL | #[ignore()]
    | ^^^^^^^^^^^
@@ -643,7 +643,7 @@ LL | #[ignore()]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 error: valid forms for the attribute are `#[ignore = "reason"]` and `#[ignore]`
-  --> $DIR/malformed-attrs.rs:223:1
+  --> $DIR/malformed-attrs.rs:224:1
    |
 LL | #[ignore = 1]
    | ^^^^^^^^^^^^^
@@ -652,7 +652,7 @@ LL | #[ignore = 1]
    = note: for more information, see issue #57571 <https://github.com/rust-lang/rust/issues/57571>
 
 error[E0308]: mismatched types
-  --> $DIR/malformed-attrs.rs:111:23
+  --> $DIR/malformed-attrs.rs:112:23
    |
 LL | fn test() {
    |          - help: a return type might be missing here: `-> _`
@@ -660,7 +660,7 @@ LL |     #[coroutine = 63] || {}
    |                       ^^^^^ expected `()`, found coroutine
    |
    = note: expected unit type `()`
-              found coroutine `{coroutine@$DIR/malformed-attrs.rs:111:23: 111:25}`
+              found coroutine `{coroutine@$DIR/malformed-attrs.rs:112:23: 112:25}`
 
 error: aborting due to 75 previous errors; 3 warnings emitted
 
diff --git a/tests/ui/attributes/malformed-fn-align.rs b/tests/ui/attributes/malformed-fn-align.rs
index e06e6116842..cf143b28e54 100644
--- a/tests/ui/attributes/malformed-fn-align.rs
+++ b/tests/ui/attributes/malformed-fn-align.rs
@@ -1,49 +1,54 @@
+// ignore-tidy-linelength
+
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+#![feature(rustc_attrs)]
 #![feature(fn_align)]
+
 #![crate_type = "lib"]
 
 trait MyTrait {
-    #[align] //~ ERROR malformed `align` attribute input
+    #[rustc_align] //~ ERROR malformed `rustc_align` attribute input
     fn myfun1();
 
-    #[align(1, 2)] //~ ERROR malformed `align` attribute input
+    #[rustc_align(1, 2)] //~ ERROR malformed `rustc_align` attribute input
     fn myfun2();
 }
 
-#[align = 16] //~ ERROR malformed `align` attribute input
+#[rustc_align = 16] //~ ERROR malformed `rustc_align` attribute input
 fn f1() {}
 
-#[align("hello")] //~ ERROR invalid alignment value: not an unsuffixed integer
+#[rustc_align("hello")] //~ ERROR invalid alignment value: not an unsuffixed integer
 fn f2() {}
 
-#[align(0)] //~ ERROR invalid alignment value: not a power of two
+#[rustc_align(0)] //~ ERROR invalid alignment value: not a power of two
 fn f3() {}
 
 #[repr(align(16))] //~ ERROR `#[repr(align(...))]` is not supported on function items
 fn f4() {}
 
-#[align(-1)] //~ ERROR expected unsuffixed literal, found `-`
+#[rustc_align(-1)] //~ ERROR expected unsuffixed literal, found `-`
 fn f5() {}
 
-#[align(3)] //~ ERROR invalid alignment value: not a power of two
+#[rustc_align(3)] //~ ERROR invalid alignment value: not a power of two
 fn f6() {}
 
-#[align(4usize)] //~ ERROR invalid alignment value: not an unsuffixed integer [E0589]
+#[rustc_align(4usize)] //~ ERROR invalid alignment value: not an unsuffixed integer [E0589]
 //~^ ERROR suffixed literals are not allowed in attributes
 fn f7() {}
 
-#[align(16)]
-#[align(3)] //~ ERROR invalid alignment value: not a power of two
-#[align(16)]
+#[rustc_align(16)]
+#[rustc_align(3)] //~ ERROR invalid alignment value: not a power of two
+#[rustc_align(16)]
 fn f8() {}
 
-#[align(16)] //~ ERROR `#[align(...)]` is not supported on struct items
+#[rustc_align(16)] //~ ERROR `#[rustc_align(...)]` is not supported on struct items
 struct S1;
 
-#[align(32)] //~ ERROR `#[align(...)]` should be applied to a function item
+#[rustc_align(32)] //~ ERROR `#[rustc_align(...)]` should be applied to a function item
 const FOO: i32 = 42;
 
-#[align(32)] //~ ERROR `#[align(...)]` should be applied to a function item
+#[rustc_align(32)] //~ ERROR `#[rustc_align(...)]` should be applied to a function item
 mod test {}
 
-#[align(32)] //~ ERROR `#[align(...)]` should be applied to a function item
+#[rustc_align(32)] //~ ERROR `#[rustc_align(...)]` should be applied to a function item
 use ::std::iter;
diff --git a/tests/ui/attributes/malformed-fn-align.stderr b/tests/ui/attributes/malformed-fn-align.stderr
index af3625b1f3b..d995a7bf070 100644
--- a/tests/ui/attributes/malformed-fn-align.stderr
+++ b/tests/ui/attributes/malformed-fn-align.stderr
@@ -1,119 +1,119 @@
 error: expected unsuffixed literal, found `-`
-  --> $DIR/malformed-fn-align.rs:24:9
+  --> $DIR/malformed-fn-align.rs:29:15
    |
-LL | #[align(-1)]
-   |         ^
+LL | #[rustc_align(-1)]
+   |               ^
 
 error: suffixed literals are not allowed in attributes
-  --> $DIR/malformed-fn-align.rs:30:9
+  --> $DIR/malformed-fn-align.rs:35:15
    |
-LL | #[align(4usize)]
-   |         ^^^^^^
+LL | #[rustc_align(4usize)]
+   |               ^^^^^^
    |
    = help: instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), use an unsuffixed version (`1`, `1.0`, etc.)
 
-error[E0539]: malformed `align` attribute input
-  --> $DIR/malformed-fn-align.rs:5:5
+error[E0539]: malformed `rustc_align` attribute input
+  --> $DIR/malformed-fn-align.rs:10:5
    |
-LL |     #[align]
-   |     ^^^^^^^^
+LL |     #[rustc_align]
+   |     ^^^^^^^^^^^^^^
    |     |
    |     expected this to be a list
-   |     help: must be of the form: `#[align(<alignment in bytes>)]`
+   |     help: must be of the form: `#[rustc_align(<alignment in bytes>)]`
 
-error[E0805]: malformed `align` attribute input
-  --> $DIR/malformed-fn-align.rs:8:5
+error[E0805]: malformed `rustc_align` attribute input
+  --> $DIR/malformed-fn-align.rs:13:5
    |
-LL |     #[align(1, 2)]
-   |     ^^^^^^^------^
-   |     |      |
-   |     |      expected a single argument here
-   |     help: must be of the form: `#[align(<alignment in bytes>)]`
+LL |     #[rustc_align(1, 2)]
+   |     ^^^^^^^^^^^^^------^
+   |     |            |
+   |     |            expected a single argument here
+   |     help: must be of the form: `#[rustc_align(<alignment in bytes>)]`
 
-error[E0539]: malformed `align` attribute input
-  --> $DIR/malformed-fn-align.rs:12:1
+error[E0539]: malformed `rustc_align` attribute input
+  --> $DIR/malformed-fn-align.rs:17:1
    |
-LL | #[align = 16]
-   | ^^^^^^^^^^^^^
+LL | #[rustc_align = 16]
+   | ^^^^^^^^^^^^^^^^^^^
    | |
    | expected this to be a list
-   | help: must be of the form: `#[align(<alignment in bytes>)]`
+   | help: must be of the form: `#[rustc_align(<alignment in bytes>)]`
 
 error[E0589]: invalid alignment value: not an unsuffixed integer
-  --> $DIR/malformed-fn-align.rs:15:9
+  --> $DIR/malformed-fn-align.rs:20:15
    |
-LL | #[align("hello")]
-   |         ^^^^^^^
+LL | #[rustc_align("hello")]
+   |               ^^^^^^^
 
 error[E0589]: invalid alignment value: not a power of two
-  --> $DIR/malformed-fn-align.rs:18:9
+  --> $DIR/malformed-fn-align.rs:23:15
    |
-LL | #[align(0)]
-   |         ^
+LL | #[rustc_align(0)]
+   |               ^
 
 error[E0589]: invalid alignment value: not a power of two
-  --> $DIR/malformed-fn-align.rs:27:9
+  --> $DIR/malformed-fn-align.rs:32:15
    |
-LL | #[align(3)]
-   |         ^
+LL | #[rustc_align(3)]
+   |               ^
 
 error[E0589]: invalid alignment value: not an unsuffixed integer
-  --> $DIR/malformed-fn-align.rs:30:9
+  --> $DIR/malformed-fn-align.rs:35:15
    |
-LL | #[align(4usize)]
-   |         ^^^^^^
+LL | #[rustc_align(4usize)]
+   |               ^^^^^^
 
 error[E0589]: invalid alignment value: not a power of two
-  --> $DIR/malformed-fn-align.rs:35:9
+  --> $DIR/malformed-fn-align.rs:40:15
    |
-LL | #[align(3)]
-   |         ^
+LL | #[rustc_align(3)]
+   |               ^
 
 error: `#[repr(align(...))]` is not supported on function items
-  --> $DIR/malformed-fn-align.rs:21:8
+  --> $DIR/malformed-fn-align.rs:26:8
    |
 LL | #[repr(align(16))]
    |        ^^^^^^^^^
    |
-help: use `#[align(...)]` instead
-  --> $DIR/malformed-fn-align.rs:21:8
+help: use `#[rustc_align(...)]` instead
+  --> $DIR/malformed-fn-align.rs:26:8
    |
 LL | #[repr(align(16))]
    |        ^^^^^^^^^
 
-error: `#[align(...)]` is not supported on struct items
-  --> $DIR/malformed-fn-align.rs:39:1
+error: `#[rustc_align(...)]` is not supported on struct items
+  --> $DIR/malformed-fn-align.rs:44:1
    |
-LL | #[align(16)]
-   | ^^^^^^^^^^^^
+LL | #[rustc_align(16)]
+   | ^^^^^^^^^^^^^^^^^^
    |
 help: use `#[repr(align(...))]` instead
    |
-LL - #[align(16)]
+LL - #[rustc_align(16)]
 LL + #[repr(align(16))]
    |
 
-error: `#[align(...)]` should be applied to a function item
-  --> $DIR/malformed-fn-align.rs:42:1
+error: `#[rustc_align(...)]` should be applied to a function item
+  --> $DIR/malformed-fn-align.rs:47:1
    |
-LL | #[align(32)]
-   | ^^^^^^^^^^^^
+LL | #[rustc_align(32)]
+   | ^^^^^^^^^^^^^^^^^^
 LL | const FOO: i32 = 42;
    | -------------------- not a function item
 
-error: `#[align(...)]` should be applied to a function item
-  --> $DIR/malformed-fn-align.rs:45:1
+error: `#[rustc_align(...)]` should be applied to a function item
+  --> $DIR/malformed-fn-align.rs:50:1
    |
-LL | #[align(32)]
-   | ^^^^^^^^^^^^
+LL | #[rustc_align(32)]
+   | ^^^^^^^^^^^^^^^^^^
 LL | mod test {}
    | ----------- not a function item
 
-error: `#[align(...)]` should be applied to a function item
-  --> $DIR/malformed-fn-align.rs:48:1
+error: `#[rustc_align(...)]` should be applied to a function item
+  --> $DIR/malformed-fn-align.rs:53:1
    |
-LL | #[align(32)]
-   | ^^^^^^^^^^^^
+LL | #[rustc_align(32)]
+   | ^^^^^^^^^^^^^^^^^^
 LL | use ::std::iter;
    | ---------------- not a function item
 
diff --git a/tests/ui/consts/const-try-feature-gate.rs b/tests/ui/consts/const-try-feature-gate.rs
index 09985079e8e..4a98185a18a 100644
--- a/tests/ui/consts/const-try-feature-gate.rs
+++ b/tests/ui/consts/const-try-feature-gate.rs
@@ -4,6 +4,8 @@ const fn t() -> Option<()> {
     Some(())?;
     //~^ ERROR `?` is not allowed
     //~| ERROR `?` is not allowed
+    //~| ERROR `Try` is not yet stable as a const trait
+    //~| ERROR `FromResidual` is not yet stable as a const trait
     None
 }
 
diff --git a/tests/ui/consts/const-try-feature-gate.stderr b/tests/ui/consts/const-try-feature-gate.stderr
index 0ad19d05b38..62a4a5fba4f 100644
--- a/tests/ui/consts/const-try-feature-gate.stderr
+++ b/tests/ui/consts/const-try-feature-gate.stderr
@@ -1,19 +1,47 @@
-error[E0015]: `?` is not allowed on `Option<()>` in constant functions
+error[E0658]: `?` is not allowed on `Option<()>` in constant functions
   --> $DIR/const-try-feature-gate.rs:4:5
    |
 LL |     Some(())?;
    |     ^^^^^^^^^
    |
    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
+   = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information
+   = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
-error[E0015]: `?` is not allowed on `Option<()>` in constant functions
+error: `Try` is not yet stable as a const trait
+  --> $DIR/const-try-feature-gate.rs:4:5
+   |
+LL |     Some(())?;
+   |     ^^^^^^^^^
+   |
+help: add `#![feature(const_try)]` to the crate attributes to enable
+   |
+LL + #![feature(const_try)]
+   |
+
+error[E0658]: `?` is not allowed on `Option<()>` in constant functions
   --> $DIR/const-try-feature-gate.rs:4:5
    |
 LL |     Some(())?;
    |     ^^^^^^^^^
    |
    = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
+   = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information
+   = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error: `FromResidual` is not yet stable as a const trait
+  --> $DIR/const-try-feature-gate.rs:4:5
+   |
+LL |     Some(())?;
+   |     ^^^^^^^^^
+   |
+help: add `#![feature(const_try)]` to the crate attributes to enable
+   |
+LL + #![feature(const_try)]
+   |
 
-error: aborting due to 2 previous errors
+error: aborting due to 4 previous errors
 
-For more information about this error, try `rustc --explain E0015`.
+For more information about this error, try `rustc --explain E0658`.
diff --git a/tests/ui/consts/const-try.rs b/tests/ui/consts/const-try.rs
index e13fad78441..152400d702e 100644
--- a/tests/ui/consts/const-try.rs
+++ b/tests/ui/consts/const-try.rs
@@ -1,4 +1,6 @@
-//@ compile-flags: -Znext-solver
+//@ check-pass
+//@ revisions: current next
+//@[next] compile-flags: -Znext-solver
 
 // Demonstrates what's needed to make use of `?` in const contexts.
 
@@ -13,14 +15,12 @@ struct TryMe;
 struct Error;
 
 impl const FromResidual<Error> for TryMe {
-    //~^ ERROR const `impl` for trait `FromResidual` which is not `const`
     fn from_residual(residual: Error) -> Self {
         TryMe
     }
 }
 
 impl const Try for TryMe {
-    //~^ ERROR const `impl` for trait `Try` which is not `const`
     type Output = ();
     type Residual = Error;
     fn from_output(output: Self::Output) -> Self {
@@ -33,8 +33,6 @@ impl const Try for TryMe {
 
 const fn t() -> TryMe {
     TryMe?;
-    //~^ ERROR `?` is not allowed on
-    //~| ERROR `?` is not allowed on
     TryMe
 }
 
diff --git a/tests/ui/consts/const-try.stderr b/tests/ui/consts/const-try.stderr
deleted file mode 100644
index 7004ea3e6db..00000000000
--- a/tests/ui/consts/const-try.stderr
+++ /dev/null
@@ -1,37 +0,0 @@
-error: const `impl` for trait `FromResidual` which is not `const`
-  --> $DIR/const-try.rs:15:12
-   |
-LL | impl const FromResidual<Error> for TryMe {
-   |            ^^^^^^^^^^^^^^^^^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
-error: const `impl` for trait `Try` which is not `const`
-  --> $DIR/const-try.rs:22:12
-   |
-LL | impl const Try for TryMe {
-   |            ^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
-error[E0015]: `?` is not allowed on `TryMe` in constant functions
-  --> $DIR/const-try.rs:35:5
-   |
-LL |     TryMe?;
-   |     ^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `TryMe` in constant functions
-  --> $DIR/const-try.rs:35:5
-   |
-LL |     TryMe?;
-   |     ^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error: aborting due to 4 previous errors
-
-For more information about this error, try `rustc --explain E0015`.
diff --git a/tests/ui/consts/control-flow/try.rs b/tests/ui/consts/control-flow/try.rs
index 67083e1a39b..6d762f9194e 100644
--- a/tests/ui/consts/control-flow/try.rs
+++ b/tests/ui/consts/control-flow/try.rs
@@ -1,11 +1,12 @@
-// The `?` operator is still not const-evaluatable because it calls `From::from` on the error
-// variant.
+//@ check-pass
+
+#![allow(dead_code)]
+#![feature(const_trait_impl)]
+#![feature(const_try)]
 
 const fn opt() -> Option<i32> {
     let x = Some(2);
     x?;
-    //~^ ERROR: `?` is not allowed
-    //~| ERROR: `?` is not allowed
     None
 }
 
diff --git a/tests/ui/consts/control-flow/try.stderr b/tests/ui/consts/control-flow/try.stderr
deleted file mode 100644
index 62a3e3ce6bc..00000000000
--- a/tests/ui/consts/control-flow/try.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0015]: `?` is not allowed on `Option<i32>` in constant functions
-  --> $DIR/try.rs:6:5
-   |
-LL |     x?;
-   |     ^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `Option<i32>` in constant functions
-  --> $DIR/try.rs:6:5
-   |
-LL |     x?;
-   |     ^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0015`.
diff --git a/tests/ui/consts/try-operator.rs b/tests/ui/consts/try-operator.rs
index 352dbeefa8a..59d9fcb1cbd 100644
--- a/tests/ui/consts/try-operator.rs
+++ b/tests/ui/consts/try-operator.rs
@@ -1,9 +1,8 @@
-//@ known-bug: #110395
+//@ run-pass
 
 #![feature(try_trait_v2)]
 #![feature(const_trait_impl)]
 #![feature(const_try)]
-#![feature(const_convert)]
 
 fn main() {
     const fn result() -> Result<bool, ()> {
diff --git a/tests/ui/consts/try-operator.stderr b/tests/ui/consts/try-operator.stderr
deleted file mode 100644
index fc37039d260..00000000000
--- a/tests/ui/consts/try-operator.stderr
+++ /dev/null
@@ -1,42 +0,0 @@
-error[E0635]: unknown feature `const_convert`
-  --> $DIR/try-operator.rs:6:12
-   |
-LL | #![feature(const_convert)]
-   |            ^^^^^^^^^^^^^
-
-error[E0015]: `?` is not allowed on `Result<(), ()>` in constant functions
-  --> $DIR/try-operator.rs:10:9
-   |
-LL |         Err(())?;
-   |         ^^^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `Result<bool, ()>` in constant functions
-  --> $DIR/try-operator.rs:10:9
-   |
-LL |         Err(())?;
-   |         ^^^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `Option<()>` in constant functions
-  --> $DIR/try-operator.rs:18:9
-   |
-LL |         None?;
-   |         ^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `Option<()>` in constant functions
-  --> $DIR/try-operator.rs:18:9
-   |
-LL |         None?;
-   |         ^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error: aborting due to 5 previous errors
-
-Some errors have detailed explanations: E0015, E0635.
-For more information about an error, try `rustc --explain E0015`.
diff --git a/tests/ui/feature-gates/feature-gate-fn_align.rs b/tests/ui/feature-gates/feature-gate-fn_align.rs
index b6c300e5cbe..36e17c4a8dd 100644
--- a/tests/ui/feature-gates/feature-gate-fn_align.rs
+++ b/tests/ui/feature-gates/feature-gate-fn_align.rs
@@ -1,12 +1,16 @@
 #![crate_type = "lib"]
 
-#[align(16)]
-//~^ ERROR the `#[align]` attribute is an experimental feature
+// ignore-tidy-linelength
+
+// FIXME(#82232, #143834): temporarily renamed to mitigate `#[align]` nameres ambiguity
+
+#[rustc_align(16)]
+//~^ ERROR the `#[rustc_align]` attribute is an experimental feature
 fn requires_alignment() {}
 
 trait MyTrait {
-    #[align]
-    //~^ ERROR the `#[align]` attribute is an experimental feature
-    //~| ERROR malformed `align` attribute input
+    #[rustc_align]
+    //~^ ERROR the `#[rustc_align]` attribute is an experimental feature
+    //~| ERROR malformed `rustc_align` attribute input
     fn myfun();
 }
diff --git a/tests/ui/feature-gates/feature-gate-fn_align.stderr b/tests/ui/feature-gates/feature-gate-fn_align.stderr
index 921cf08435c..6196f4f298f 100644
--- a/tests/ui/feature-gates/feature-gate-fn_align.stderr
+++ b/tests/ui/feature-gates/feature-gate-fn_align.stderr
@@ -1,31 +1,31 @@
-error[E0658]: the `#[align]` attribute is an experimental feature
-  --> $DIR/feature-gate-fn_align.rs:3:1
+error[E0658]: the `#[rustc_align]` attribute is an experimental feature
+  --> $DIR/feature-gate-fn_align.rs:7:1
    |
-LL | #[align(16)]
-   | ^^^^^^^^^^^^
+LL | #[rustc_align(16)]
+   | ^^^^^^^^^^^^^^^^^^
    |
    = note: see issue #82232 <https://github.com/rust-lang/rust/issues/82232> for more information
    = help: add `#![feature(fn_align)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
-error[E0658]: the `#[align]` attribute is an experimental feature
-  --> $DIR/feature-gate-fn_align.rs:8:5
+error[E0658]: the `#[rustc_align]` attribute is an experimental feature
+  --> $DIR/feature-gate-fn_align.rs:12:5
    |
-LL |     #[align]
-   |     ^^^^^^^^
+LL |     #[rustc_align]
+   |     ^^^^^^^^^^^^^^
    |
    = note: see issue #82232 <https://github.com/rust-lang/rust/issues/82232> for more information
    = help: add `#![feature(fn_align)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
-error[E0539]: malformed `align` attribute input
-  --> $DIR/feature-gate-fn_align.rs:8:5
+error[E0539]: malformed `rustc_align` attribute input
+  --> $DIR/feature-gate-fn_align.rs:12:5
    |
-LL |     #[align]
-   |     ^^^^^^^^
+LL |     #[rustc_align]
+   |     ^^^^^^^^^^^^^^
    |     |
    |     expected this to be a list
-   |     help: must be of the form: `#[align(<alignment in bytes>)]`
+   |     help: must be of the form: `#[rustc_align(<alignment in bytes>)]`
 
 error: aborting due to 3 previous errors
 
diff --git a/tests/ui/lifetimes/elided-lifetime-in-const-param-type.rs b/tests/ui/lifetimes/elided-lifetime-in-const-param-type.rs
new file mode 100644
index 00000000000..cdfd1327eae
--- /dev/null
+++ b/tests/ui/lifetimes/elided-lifetime-in-const-param-type.rs
@@ -0,0 +1,12 @@
+//! Regression test for <https://github.com/rust-lang/rust/issues/143413>
+//! The anonymous lifetime in `c(&())` is desugared by the resolver as an extra lifetime parameter
+//! at the end of the `for` binder. Verify that lowering creates the definition for that extra
+//! lifetime parameter before lowering `c(&())`.
+
+trait D {}
+
+type A = dyn for<const B: c(&())> D;
+//~^ ERROR cannot find type `c` in this scope
+//~| ERROR only lifetime parameters can be used in this context
+
+fn main() {}
diff --git a/tests/ui/lifetimes/elided-lifetime-in-const-param-type.stderr b/tests/ui/lifetimes/elided-lifetime-in-const-param-type.stderr
new file mode 100644
index 00000000000..c7f3c0cc0cd
--- /dev/null
+++ b/tests/ui/lifetimes/elided-lifetime-in-const-param-type.stderr
@@ -0,0 +1,20 @@
+error[E0412]: cannot find type `c` in this scope
+  --> $DIR/elided-lifetime-in-const-param-type.rs:8:27
+   |
+LL | type A = dyn for<const B: c(&())> D;
+   |                           ^ not found in this scope
+
+error[E0658]: only lifetime parameters can be used in this context
+  --> $DIR/elided-lifetime-in-const-param-type.rs:8:24
+   |
+LL | type A = dyn for<const B: c(&())> D;
+   |                        ^
+   |
+   = note: see issue #108185 <https://github.com/rust-lang/rust/issues/108185> for more information
+   = help: add `#![feature(non_lifetime_binders)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
+error: aborting due to 2 previous errors
+
+Some errors have detailed explanations: E0412, E0658.
+For more information about an error, try `rustc --explain E0412`.
diff --git a/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.fixed b/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.fixed
index 26c1c9015da..028f86eb0a3 100644
--- a/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.fixed
+++ b/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.fixed
@@ -1,5 +1,5 @@
 //@ edition:2018
-//@ aux-build:../removing-extern-crate.rs
+//@ aux-build: remove-extern-crate.rs
 //@ run-rustfix
 
 #![warn(rust_2018_idioms)]
diff --git a/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.rs b/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.rs
index c5b629fa90b..1acf531a661 100644
--- a/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.rs
+++ b/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.rs
@@ -1,16 +1,16 @@
 //@ edition:2018
-//@ aux-build:../removing-extern-crate.rs
+//@ aux-build: remove-extern-crate.rs
 //@ run-rustfix
 
 #![warn(rust_2018_idioms)]
 
 #[cfg_attr(test, "macro_use")] //~ ERROR expected
-extern crate removing_extern_crate as foo; //~ WARNING unused extern crate
+extern crate remove_extern_crate as foo; //~ WARNING unused extern crate
 extern crate core; //~ WARNING unused extern crate
 
 mod another {
     #[cfg_attr(test)] //~ ERROR expected
-    extern crate removing_extern_crate as foo; //~ WARNING unused extern crate
+    extern crate remove_extern_crate as foo; //~ WARNING unused extern crate
     extern crate core; //~ WARNING unused extern crate
 }
 
diff --git a/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.stderr b/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.stderr
index 0e834707bf9..632ecd62322 100644
--- a/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.stderr
+++ b/tests/ui/rust-2018/removing-extern-crate-malformed-cfg.stderr
@@ -19,8 +19,8 @@ LL |     #[cfg_attr(test)]
 warning: unused extern crate
   --> $DIR/removing-extern-crate-malformed-cfg.rs:8:1
    |
-LL | extern crate removing_extern_crate as foo;
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unused
+LL | extern crate remove_extern_crate as foo;
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unused
    |
 note: the lint level is defined here
   --> $DIR/removing-extern-crate-malformed-cfg.rs:5:9
@@ -31,7 +31,7 @@ LL | #![warn(rust_2018_idioms)]
 help: remove the unused `extern crate`
    |
 LL - #[cfg_attr(test, "macro_use")]
-LL - extern crate removing_extern_crate as foo;
+LL - extern crate remove_extern_crate as foo;
 LL +
    |
 
@@ -50,13 +50,13 @@ LL +
 warning: unused extern crate
   --> $DIR/removing-extern-crate-malformed-cfg.rs:13:5
    |
-LL |     extern crate removing_extern_crate as foo;
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unused
+LL |     extern crate remove_extern_crate as foo;
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unused
    |
 help: remove the unused `extern crate`
    |
 LL -     #[cfg_attr(test)]
-LL -     extern crate removing_extern_crate as foo;
+LL -     extern crate remove_extern_crate as foo;
 LL +
    |
 
diff --git a/tests/ui/stable-mir-print/async-closure.rs b/tests/ui/rustc_public-ir-print/async-closure.rs
index 80f96e09cfc..80f96e09cfc 100644
--- a/tests/ui/stable-mir-print/async-closure.rs
+++ b/tests/ui/rustc_public-ir-print/async-closure.rs
diff --git a/tests/ui/stable-mir-print/async-closure.stdout b/tests/ui/rustc_public-ir-print/async-closure.stdout
index 31811299722..4afb15af7a9 100644
--- a/tests/ui/stable-mir-print/async-closure.stdout
+++ b/tests/ui/rustc_public-ir-print/async-closure.stdout
@@ -1,4 +1,4 @@
-// WARNING: This is highly experimental output it's intended for stable-mir developers only.
+// WARNING: This is highly experimental output it's intended for rustc_public developers only.
 // If you find a bug or want to improve the output open a issue at https://github.com/rust-lang/project-stable-mir.
 fn foo() -> () {
     let mut _0: ();
diff --git a/tests/ui/stable-mir-print/basic_function.rs b/tests/ui/rustc_public-ir-print/basic_function.rs
index 21469c61f72..21469c61f72 100644
--- a/tests/ui/stable-mir-print/basic_function.rs
+++ b/tests/ui/rustc_public-ir-print/basic_function.rs
diff --git a/tests/ui/stable-mir-print/basic_function.stdout b/tests/ui/rustc_public-ir-print/basic_function.stdout
index 319d9c1dc69..dc885e009e9 100644
--- a/tests/ui/stable-mir-print/basic_function.stdout
+++ b/tests/ui/rustc_public-ir-print/basic_function.stdout
@@ -1,4 +1,4 @@
-// WARNING: This is highly experimental output it's intended for stable-mir developers only.
+// WARNING: This is highly experimental output it's intended for rustc_public developers only.
 // If you find a bug or want to improve the output open a issue at https://github.com/rust-lang/project-stable-mir.
 fn foo(_1: i32) -> i32 {
     let mut _0: i32;
diff --git a/tests/ui/stable-mir-print/operands.rs b/tests/ui/rustc_public-ir-print/operands.rs
index 484ad07cf04..484ad07cf04 100644
--- a/tests/ui/stable-mir-print/operands.rs
+++ b/tests/ui/rustc_public-ir-print/operands.rs
diff --git a/tests/ui/stable-mir-print/operands.stdout b/tests/ui/rustc_public-ir-print/operands.stdout
index 37c5ec1a95e..a4b1c07f3a0 100644
--- a/tests/ui/stable-mir-print/operands.stdout
+++ b/tests/ui/rustc_public-ir-print/operands.stdout
@@ -1,4 +1,4 @@
-// WARNING: This is highly experimental output it's intended for stable-mir developers only.
+// WARNING: This is highly experimental output it's intended for rustc_public developers only.
 // If you find a bug or want to improve the output open a issue at https://github.com/rust-lang/project-stable-mir.
 fn operands(_1: u8) -> () {
     let mut _0: ();
diff --git a/tests/ui/traits/const-traits/hir-const-check.rs b/tests/ui/traits/const-traits/hir-const-check.rs
index c485fb12184..1b6fa1afab9 100644
--- a/tests/ui/traits/const-traits/hir-const-check.rs
+++ b/tests/ui/traits/const-traits/hir-const-check.rs
@@ -1,8 +1,10 @@
+//@ check-pass
 //@ compile-flags: -Znext-solver
 
 // Regression test for #69615.
 
 #![feature(const_trait_impl)]
+#![feature(const_try)]
 
 #[const_trait]
 pub trait MyTrait {
@@ -12,8 +14,6 @@ pub trait MyTrait {
 impl const MyTrait for () {
     fn method(&self) -> Option<()> {
         Some(())?;
-        //~^ ERROR `?` is not allowed on
-        //~| ERROR `?` is not allowed on
         None
     }
 }
diff --git a/tests/ui/traits/const-traits/hir-const-check.stderr b/tests/ui/traits/const-traits/hir-const-check.stderr
deleted file mode 100644
index d66a7ea3144..00000000000
--- a/tests/ui/traits/const-traits/hir-const-check.stderr
+++ /dev/null
@@ -1,19 +0,0 @@
-error[E0015]: `?` is not allowed on `Option<()>` in constant functions
-  --> $DIR/hir-const-check.rs:14:9
-   |
-LL |         Some(())?;
-   |         ^^^^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `Option<()>` in constant functions
-  --> $DIR/hir-const-check.rs:14:9
-   |
-LL |         Some(())?;
-   |         ^^^^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error: aborting due to 2 previous errors
-
-For more information about this error, try `rustc --explain E0015`.
diff --git a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs
index 47c85980aca..af552ac0c5e 100644
--- a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs
+++ b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs
@@ -1,11 +1,10 @@
 #![allow(incomplete_features)]
-#![feature(const_trait_impl, try_trait_v2)]
+#![feature(const_trait_impl, const_try, try_trait_v2)]
 
 use std::ops::FromResidual;
 
 impl<T> const FromResidual for T {
-    //~^ ERROR const `impl` for trait `FromResidual` which is not `const`
-    //~| ERROR type parameter `T` must be used as the type parameter for some local type
+    //~^ ERROR type parameter `T` must be used as the type parameter for some local type
     fn from_residual(t: T) -> _ {
         //~^ ERROR the placeholder `_` is not allowed
         t
diff --git a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr
index 5c5fba95f02..08fc73fe77b 100644
--- a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr
+++ b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr
@@ -1,12 +1,3 @@
-error: const `impl` for trait `FromResidual` which is not `const`
-  --> $DIR/ice-119717-constant-lifetime.rs:6:15
-   |
-LL | impl<T> const FromResidual for T {
-   |               ^^^^^^^^^^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
 error[E0210]: type parameter `T` must be used as the type parameter for some local type (e.g., `MyStruct<T>`)
   --> $DIR/ice-119717-constant-lifetime.rs:6:6
    |
@@ -17,7 +8,7 @@ LL | impl<T> const FromResidual for T {
    = note: only traits defined in the current crate can be implemented for a type parameter
 
 error[E0121]: the placeholder `_` is not allowed within types on item signatures for associated functions
-  --> $DIR/ice-119717-constant-lifetime.rs:9:31
+  --> $DIR/ice-119717-constant-lifetime.rs:8:31
    |
 LL |     fn from_residual(t: T) -> _ {
    |                               ^ not allowed in type signatures
@@ -28,7 +19,7 @@ LL -     fn from_residual(t: T) -> _ {
 LL +     fn from_residual(t: T) -> T {
    |
 
-error: aborting due to 3 previous errors
+error: aborting due to 2 previous errors
 
 Some errors have detailed explanations: E0121, E0210.
 For more information about an error, try `rustc --explain E0121`.
diff --git a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs
index 5e368b9e6a9..bfce9dc9c73 100644
--- a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs
+++ b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs
@@ -6,20 +6,16 @@ struct TryMe;
 struct Error;
 
 impl const FromResidual<Error> for TryMe {}
-//~^ ERROR const `impl` for trait `FromResidual` which is not `const`
-//~| ERROR not all trait items implemented
+//~^ ERROR not all trait items implemented
 
 impl const Try for TryMe {
-    //~^ ERROR const `impl` for trait `Try` which is not `const`
-    //~| ERROR not all trait items implemented
+    //~^ ERROR not all trait items implemented
     type Output = ();
     type Residual = Error;
 }
 
 const fn t() -> TryMe {
     TryMe?;
-    //~^ ERROR `?` is not allowed on
-    //~| ERROR `?` is not allowed on
     TryMe
 }
 
diff --git a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr
index 849d6522cd6..183203aa8ba 100644
--- a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr
+++ b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr
@@ -1,12 +1,3 @@
-error: const `impl` for trait `FromResidual` which is not `const`
-  --> $DIR/ice-126148-failed-to-normalize.rs:8:12
-   |
-LL | impl const FromResidual<Error> for TryMe {}
-   |            ^^^^^^^^^^^^^^^^^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
 error[E0046]: not all trait items implemented, missing: `from_residual`
   --> $DIR/ice-126148-failed-to-normalize.rs:8:1
    |
@@ -15,17 +6,8 @@ LL | impl const FromResidual<Error> for TryMe {}
    |
    = help: implement the missing item: `fn from_residual(_: Error) -> Self { todo!() }`
 
-error: const `impl` for trait `Try` which is not `const`
-  --> $DIR/ice-126148-failed-to-normalize.rs:12:12
-   |
-LL | impl const Try for TryMe {
-   |            ^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
 error[E0046]: not all trait items implemented, missing: `from_output`, `branch`
-  --> $DIR/ice-126148-failed-to-normalize.rs:12:1
+  --> $DIR/ice-126148-failed-to-normalize.rs:11:1
    |
 LL | impl const Try for TryMe {
    | ^^^^^^^^^^^^^^^^^^^^^^^^ missing `from_output`, `branch` in implementation
@@ -33,23 +15,6 @@ LL | impl const Try for TryMe {
    = help: implement the missing item: `fn from_output(_: <Self as Try>::Output) -> Self { todo!() }`
    = help: implement the missing item: `fn branch(self) -> ControlFlow<<Self as Try>::Residual, <Self as Try>::Output> { todo!() }`
 
-error[E0015]: `?` is not allowed on `TryMe` in constant functions
-  --> $DIR/ice-126148-failed-to-normalize.rs:20:5
-   |
-LL |     TryMe?;
-   |     ^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `TryMe` in constant functions
-  --> $DIR/ice-126148-failed-to-normalize.rs:20:5
-   |
-LL |     TryMe?;
-   |     ^^^^^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error: aborting due to 6 previous errors
+error: aborting due to 2 previous errors
 
-Some errors have detailed explanations: E0015, E0046.
-For more information about an error, try `rustc --explain E0015`.
+For more information about this error, try `rustc --explain E0046`.
diff --git a/tests/ui/traits/const-traits/trait-default-body-stability.rs b/tests/ui/traits/const-traits/trait-default-body-stability.rs
index 567f1b3c284..a8157d37ce3 100644
--- a/tests/ui/traits/const-traits/trait-default-body-stability.rs
+++ b/tests/ui/traits/const-traits/trait-default-body-stability.rs
@@ -1,4 +1,4 @@
-//@ known-bug: #110395
+//@ check-pass
 //@ compile-flags: -Znext-solver
 #![allow(incomplete_features)]
 #![feature(staged_api)]
diff --git a/tests/ui/traits/const-traits/trait-default-body-stability.stderr b/tests/ui/traits/const-traits/trait-default-body-stability.stderr
deleted file mode 100644
index b995d6f4f3d..00000000000
--- a/tests/ui/traits/const-traits/trait-default-body-stability.stderr
+++ /dev/null
@@ -1,37 +0,0 @@
-error: const `impl` for trait `Try` which is not `const`
-  --> $DIR/trait-default-body-stability.rs:19:12
-   |
-LL | impl const Try for T {
-   |            ^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
-error: const `impl` for trait `FromResidual` which is not `const`
-  --> $DIR/trait-default-body-stability.rs:34:12
-   |
-LL | impl const FromResidual for T {
-   |            ^^^^^^^^^^^^ this trait is not `const`
-   |
-   = note: marking a trait with `const` ensures all default method bodies are `const`
-   = note: adding a non-const method body in the future would be a breaking change
-
-error[E0015]: `?` is not allowed on `T` in constant functions
-  --> $DIR/trait-default-body-stability.rs:46:9
-   |
-LL |         T?
-   |         ^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error[E0015]: `?` is not allowed on `T` in constant functions
-  --> $DIR/trait-default-body-stability.rs:46:9
-   |
-LL |         T?
-   |         ^^
-   |
-   = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants
-
-error: aborting due to 4 previous errors
-
-For more information about this error, try `rustc --explain E0015`.