Auto merge of #129008 - GuillaumeGomez:rollup-6citttb, r=GuillaumeGomez

Rollup of 10 pull requests

Successful merges:

 - #128149 (nontemporal_store: make sure that the intrinsic is truly just a hint)
 - #128394 (Unify run button display with "copy code" button and with mdbook buttons)
 - #128537 (const vector passed through to codegen)
 - #128632 (std: do not overwrite style in `get_backtrace_style`)
 - #128878 (Slightly refactor `Flags` in bootstrap)
 - #128886 (Get rid of some `#[allow(rustc::untranslatable_diagnostic)]`)
 - #128929 (Fix codegen-units tests that were disabled 8 years ago)
 - #128937 (Fix warnings in rmake tests on `x86_64-unknown-linux-gnu`)
 - #128978 (Use `assert_matches` around the compiler more)
 - #128994 (Fix bug in `Parser::look_ahead`.)

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

2 files changed, 7 insertions, 0 deletions

diff --git a/compiler/rustc_codegen_gcc/src/builder.rs b/compiler/rustc_codegen_gcc/src/builder.rs
index a64371a3d89..47b378cc1cd 100644
--- a/compiler/rustc_codegen_gcc/src/builder.rs
+++ b/compiler/rustc_codegen_gcc/src/builder.rs
@@ -1127,6 +1127,8 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> {
         self.llbb().add_assignment(self.location, aligned_destination, val);
         // TODO(antoyo): handle align and flags.
         // NOTE: dummy value here since it's never used. FIXME(antoyo): API should not return a value here?
+        // When adding support for NONTEMPORAL, make sure to not just emit MOVNT on x86; see the
+        // LLVM backend for details.
         self.cx.context.new_rvalue_zero(self.type_i32())
     }
 
diff --git a/compiler/rustc_codegen_gcc/src/common.rs b/compiler/rustc_codegen_gcc/src/common.rs
index 7a456e1c5d6..dca6b6494f9 100644
--- a/compiler/rustc_codegen_gcc/src/common.rs
+++ b/compiler/rustc_codegen_gcc/src/common.rs
@@ -160,6 +160,11 @@ impl<'gcc, 'tcx> ConstMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
         self.context.new_struct_constructor(None, struct_type.as_type(), None, values)
     }
 
+    fn const_vector(&self, values: &[RValue<'gcc>]) -> RValue<'gcc> {
+        let typ = self.type_vector(values[0].get_type(), values.len() as u64);
+        self.context.new_rvalue_from_vector(None, typ, values)
+    }
+
     fn const_to_opt_uint(&self, _v: RValue<'gcc>) -> Option<u64> {
         // TODO(antoyo)
         None