Rollup merge of rust-lang#137804 - RalfJung:backend-repr-simd-vector, r=workingjubilee

rename BackendRepr::Vector → SimdVector

For many Rustaceans, "vector" does not imply "SIMD", so let's be more clear in this type that is used pervasively in the compiler.

r? `@workingjubilee`

Author: matthiaskrgr

src/intrinsic/mod.rs

@@ -312,7 +312,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tc
                 let layout = self.layout_of(tp_ty).layout;
                 let _use_integer_compare = match layout.backend_repr() {
                     Scalar(_) | ScalarPair(_, _) => true,
-                    Vector { .. } => false,
+                    SimdVector { .. } => false,
                     Memory { .. } => {
                         // For rusty ABIs, small aggregates are actually passed
                         // as `RegKind::Integer` (see `FnAbi::adjust_for_abi`),

src/type_of.rs

@@ -63,7 +63,7 @@ fn uncached_gcc_type<'gcc, 'tcx>(
 ) -> Type<'gcc> {
     match layout.backend_repr {
         BackendRepr::Scalar(_) => bug!("handled elsewhere"),
-        BackendRepr::Vector { ref element, count } => {
+        BackendRepr::SimdVector { ref element, count } => {
             let element = layout.scalar_gcc_type_at(cx, element, Size::ZERO);
             let element =
                 // NOTE: gcc doesn't allow pointer types in vectors.
@@ -178,17 +178,17 @@ pub trait LayoutGccExt<'tcx> {
 impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> {
     fn is_gcc_immediate(&self) -> bool {
         match self.backend_repr {
-            BackendRepr::Scalar(_) | BackendRepr::Vector { .. } => true,
+            BackendRepr::Scalar(_) | BackendRepr::SimdVector { .. } => true,
             BackendRepr::ScalarPair(..) | BackendRepr::Memory { .. } => false,
         }
     }
 
     fn is_gcc_scalar_pair(&self) -> bool {
         match self.backend_repr {
             BackendRepr::ScalarPair(..) => true,
-            BackendRepr::Scalar(_) | BackendRepr::Vector { .. } | BackendRepr::Memory { .. } => {
-                false
-            }
+            BackendRepr::Scalar(_)
+            | BackendRepr::SimdVector { .. }
+            | BackendRepr::Memory { .. } => false,
         }
     }