New upstream version 1.66.0+dfsg1

[rustc.git] / compiler / rustc_const_eval / src / might_permit_raw_init.rs

diff --git a/compiler/rustc_const_eval/src/might_permit_raw_init.rs b/compiler/rustc_const_eval/src/might_permit_raw_init.rs
deleted file mode 100644 (file)
index 37ffa19..0000000
--- a/compiler/rustc_const_eval/src/might_permit_raw_init.rs
+++ /dev/null
@@ -1,44 +0,0 @@
-use crate::const_eval::CompileTimeInterpreter;
-use crate::interpret::{InterpCx, MemoryKind, OpTy};
-use rustc_middle::ty::layout::LayoutCx;
-use rustc_middle::ty::{layout::TyAndLayout, ParamEnv, TyCtxt};
-use rustc_session::Limit;
-use rustc_target::abi::InitKind;
-
-pub fn might_permit_raw_init<'tcx>(
-    tcx: TyCtxt<'tcx>,
-    ty: TyAndLayout<'tcx>,
-    kind: InitKind,
-) -> bool {
-    let strict = tcx.sess.opts.unstable_opts.strict_init_checks;
-
-    if strict {
-        let machine = CompileTimeInterpreter::new(
-            Limit::new(0),
-            /*can_access_statics:*/ false,
-            /*check_alignment:*/ true,
-        );
-
-        let mut cx = InterpCx::new(tcx, rustc_span::DUMMY_SP, ParamEnv::reveal_all(), machine);
-
-        let allocated = cx
-            .allocate(ty, MemoryKind::Machine(crate::const_eval::MemoryKind::Heap))
-            .expect("OOM: failed to allocate for uninit check");
-
-        if kind == InitKind::Zero {
-            cx.write_bytes_ptr(
-                allocated.ptr,
-                std::iter::repeat(0_u8).take(ty.layout.size().bytes_usize()),
-            )
-            .expect("failed to write bytes for zero valid check");
-        }
-
-        let ot: OpTy<'_, _> = allocated.into();
-
-        // Assume that if it failed, it's a validation failure.
-        cx.validate_operand(&ot).is_ok()
-    } else {
-        let layout_cx = LayoutCx { tcx, param_env: ParamEnv::reveal_all() };
-        ty.might_permit_raw_init(&layout_cx, kind)
-    }
-}