Auto merge of #146685 - jdonszelmann:rollup-kwuih4z, r=jdonszelmann

Rollup of 7 pull requests

Successful merges:

 - rust-lang/rust#146458 (Add parallel-frontend-threads to bootstrap.toml and enable multi-threaded parallel compilation)
 - rust-lang/rust#146485 (Remove unsized arg handling in `ArgAbiBuilderMethods::store_fn_arg` implementations)
 - rust-lang/rust#146536 (clean up several trait related UI tests)
 - rust-lang/rust#146598 (Make llvm_enzyme a regular cargo feature)
 - rust-lang/rust#146647 (Move `#[rustc_coherence_is_core]` to the `crate_level` file)
 - rust-lang/rust#146654 (Do not use `git -C dir`)
 - rust-lang/rust#146681 (Add space after brace in `Box<[T]>::new_uninit_slice` example)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 3 insertions, 8 deletions

diff --git a/compiler/rustc_codegen_llvm/src/abi.rs b/compiler/rustc_codegen_llvm/src/abi.rs
index ac7583f5666..11be7041167 100644
--- a/compiler/rustc_codegen_llvm/src/abi.rs
+++ b/compiler/rustc_codegen_llvm/src/abi.rs
@@ -215,9 +215,9 @@ impl<'ll, 'tcx> ArgAbiExt<'ll, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> {
                 let align = attrs.pointee_align.unwrap_or(self.layout.align.abi);
                 OperandValue::Ref(PlaceValue::new_sized(val, align)).store(bx, dst);
             }
-            // Unsized indirect qrguments
+            // Unsized indirect arguments cannot be stored
             PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => {
-                bug!("unsized `ArgAbi` must be handled through `store_fn_arg`");
+                bug!("unsized `ArgAbi` cannot be stored");
             }
             PassMode::Cast { cast, pad_i32: _ } => {
                 // The ABI mandates that the value is passed as a different struct representation.
@@ -272,12 +272,7 @@ impl<'ll, 'tcx> ArgAbiExt<'ll, 'tcx> for ArgAbi<'tcx, Ty<'tcx>> {
                 OperandValue::Pair(next(), next()).store(bx, dst);
             }
             PassMode::Indirect { attrs: _, meta_attrs: Some(_), on_stack: _ } => {
-                let place_val = PlaceValue {
-                    llval: next(),
-                    llextra: Some(next()),
-                    align: self.layout.align.abi,
-                };
-                OperandValue::Ref(place_val).store(bx, dst);
+                bug!("unsized `ArgAbi` cannot be stored");
             }
             PassMode::Direct(_)
             | PassMode::Indirect { attrs: _, meta_attrs: None, on_stack: _ }