5 files changed, 19 insertions, 14 deletions
diff --git a/compiler/rustc_abi/src/canon_abi.rs b/compiler/rustc_abi/src/canon_abi.rs
index 7c020be6761..13f9a04b286 100644
--- a/compiler/rustc_abi/src/canon_abi.rs
+++ b/compiler/rustc_abi/src/canon_abi.rs
@@ -63,8 +63,8 @@ impl fmt::Display for CanonAbi {
             CanonAbi::Custom => ExternAbi::Custom,
             CanonAbi::Arm(arm_call) => match arm_call {
                 ArmCall::Aapcs => ExternAbi::Aapcs { unwind: false },
-                ArmCall::CCmseNonSecureCall => ExternAbi::CCmseNonSecureCall,
-                ArmCall::CCmseNonSecureEntry => ExternAbi::CCmseNonSecureEntry,
+                ArmCall::CCmseNonSecureCall => ExternAbi::CmseNonSecureCall,
+                ArmCall::CCmseNonSecureEntry => ExternAbi::CmseNonSecureEntry,
             },
             CanonAbi::GpuKernel => ExternAbi::GpuKernel,
             CanonAbi::Interrupt(interrupt_kind) => match interrupt_kind {
diff --git a/compiler/rustc_abi/src/extern_abi.rs b/compiler/rustc_abi/src/extern_abi.rs
index 7457ae1f033..29a3678abf3 100644
--- a/compiler/rustc_abi/src/extern_abi.rs
+++ b/compiler/rustc_abi/src/extern_abi.rs
@@ -36,6 +36,10 @@ pub enum ExternAbi {
     /// Stronger than just `#[cold]` because `fn` pointers might be incompatible.
     RustCold,
 
+    /// An always-invalid ABI that's used to test "this ABI is not supported by this platform"
+    /// in a platform-agnostic way.
+    RustInvalid,
+
     /// Unstable impl detail that directly uses Rust types to describe the ABI to LLVM.
     /// Even normally-compatible Rust types can become ABI-incompatible with this ABI!
     Unadjusted,
@@ -55,9 +59,9 @@ pub enum ExternAbi {
         unwind: bool,
     },
     /// extremely constrained barely-C ABI for TrustZone
-    CCmseNonSecureCall,
+    CmseNonSecureCall,
     /// extremely constrained barely-C ABI for TrustZone
-    CCmseNonSecureEntry,
+    CmseNonSecureEntry,
 
     /* gpu */
     /// An entry-point function called by the GPU's host
@@ -136,8 +140,6 @@ macro_rules! abi_impls {
 abi_impls! {
     ExternAbi = {
             C { unwind: false } =><= "C",
-            CCmseNonSecureCall =><= "C-cmse-nonsecure-call",
-            CCmseNonSecureEntry =><= "C-cmse-nonsecure-entry",
             C { unwind: true } =><= "C-unwind",
             Rust =><= "Rust",
             Aapcs { unwind: false } =><= "aapcs",
@@ -146,6 +148,8 @@ abi_impls! {
             AvrNonBlockingInterrupt =><= "avr-non-blocking-interrupt",
             Cdecl { unwind: false } =><= "cdecl",
             Cdecl { unwind: true } =><= "cdecl-unwind",
+            CmseNonSecureCall =><= "cmse-nonsecure-call",
+            CmseNonSecureEntry =><= "cmse-nonsecure-entry",
             Custom =><= "custom",
             EfiApi =><= "efiapi",
             Fastcall { unwind: false } =><= "fastcall",
@@ -157,6 +161,7 @@ abi_impls! {
             RiscvInterruptS =><= "riscv-interrupt-s",
             RustCall =><= "rust-call",
             RustCold =><= "rust-cold",
+            RustInvalid =><= "rust-invalid",
             Stdcall { unwind: false } =><= "stdcall",
             Stdcall { unwind: true } =><= "stdcall-unwind",
             System { unwind: false } =><= "system",
diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs
index 58a7fcae9f6..80b44e432ee 100644
--- a/compiler/rustc_abi/src/layout.rs
+++ b/compiler/rustc_abi/src/layout.rs
@@ -432,7 +432,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
             align = align.min(AbiAlign::new(pack));
         }
         // The unadjusted ABI alignment does not include repr(align), but does include repr(pack).
-        // See documentation on `LayoutS::unadjusted_abi_align`.
+        // See documentation on `LayoutData::unadjusted_abi_align`.
         let unadjusted_abi_align = align.abi;
         if let Some(repr_align) = repr.align {
             align = align.max(AbiAlign::new(repr_align));
@@ -602,10 +602,10 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
         dont_niche_optimize_enum: bool,
     ) -> LayoutCalculatorResult<FieldIdx, VariantIdx, F> {
         // Until we've decided whether to use the tagged or
-        // niche filling LayoutS, we don't want to intern the
+        // niche filling LayoutData, we don't want to intern the
         // variant layouts, so we can't store them in the
-        // overall LayoutS. Store the overall LayoutS
-        // and the variant LayoutSs here until then.
+        // overall LayoutData. Store the overall LayoutData
+        // and the variant LayoutDatas here until then.
         struct TmpLayout<FieldIdx: Idx, VariantIdx: Idx> {
             layout: LayoutData<FieldIdx, VariantIdx>,
             variants: IndexVec<VariantIdx, LayoutData<FieldIdx, VariantIdx>>,
@@ -1214,7 +1214,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
 
                 match kind {
                     StructKind::AlwaysSized | StructKind::MaybeUnsized => {
-                        // Currently `LayoutS` only exposes a single niche so sorting is usually
+                        // Currently `LayoutData` only exposes a single niche so sorting is usually
                         // sufficient to get one niche into the preferred position. If it ever
                         // supported multiple niches then a more advanced pick-and-pack approach could
                         // provide better results. But even for the single-niche cache it's not
@@ -1333,7 +1333,7 @@ impl<Cx: HasDataLayout> LayoutCalculator<Cx> {
         }
 
         // The unadjusted ABI alignment does not include repr(align), but does include repr(pack).
-        // See documentation on `LayoutS::unadjusted_abi_align`.
+        // See documentation on `LayoutData::unadjusted_abi_align`.
         let unadjusted_abi_align = align.abi;
         if let Some(repr_align) = repr.align {
             align = align.max(AbiAlign::new(repr_align));
diff --git a/compiler/rustc_abi/src/layout/ty.rs b/compiler/rustc_abi/src/layout/ty.rs
index bb880a58e52..18f0750aaa1 100644
--- a/compiler/rustc_abi/src/layout/ty.rs
+++ b/compiler/rustc_abi/src/layout/ty.rs
@@ -71,7 +71,7 @@ pub struct Layout<'a>(pub Interned<'a, LayoutData<FieldIdx, VariantIdx>>);
 
 impl<'a> fmt::Debug for Layout<'a> {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        // See comment on `<LayoutS as Debug>::fmt` above.
+        // See comment on `<LayoutData as Debug>::fmt` above.
         self.0.0.fmt(f)
     }
 }
diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs
index 4268e68b2e4..6d729b6919a 100644
--- a/compiler/rustc_abi/src/lib.rs
+++ b/compiler/rustc_abi/src/lib.rs
@@ -1785,7 +1785,7 @@ where
 {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         // This is how `Layout` used to print before it become
-        // `Interned<LayoutS>`. We print it like this to avoid having to update
+        // `Interned<LayoutData>`. We print it like this to avoid having to update
         // expected output in a lot of tests.
         let LayoutData {
             size,