miri weak memory emulation: initialize store buffer only on atomic writes; pre-fill with previous value

2024-08-10 21:54:44 +02:00
parent 04ba50e823
commit 8b18c6bdd3
6 changed files with 153 additions and 109 deletions
--- a/compiler/rustc_const_eval/src/interpret/memory.rs
+++ b/compiler/rustc_const_eval/src/interpret/memory.rs
@@ -1011,7 +1011,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> {
    ///
    /// We do this so Miri's allocation access tracking does not show the validation
    /// reads as spurious accesses.
-    pub(super) fn run_for_validation<R>(&self, f: impl FnOnce() -> R) -> R {
+    pub fn run_for_validation<R>(&self, f: impl FnOnce() -> R) -> R {
        // This deliberately uses `==` on `bool` to follow the pattern
        // `assert!(val.replace(new) == old)`.
        assert!(