bjoernager/rust
bjoernager/rust
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add new rval, pull deref early

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This commit is contained in:
ouz-a 2022-06-13 16:37:41 +03:00
parent b3f4c31199
commit cb0017f2f8
41 changed files with 274 additions and 103 deletions
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6
compiler/rustc_codegen_ssa/src/mir/rvalue.rs
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@ -8,6 +8,7 @@ use crate::traits::*;
use crate::MemFlags;
use rustc_middle::mir;
use rustc_middle::mir::Operand;
use rustc_middle::ty::cast::{CastTy, IntTy};
use rustc_middle::ty::layout::{HasTyCtxt, LayoutOf};
use rustc_middle::ty::{self, adjustment::PointerCast, Instance, Ty, TyCtxt};
@ -344,6 +345,10 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
self.codegen_place_to_pointer(bx, place, mk_ref)
}
mir::Rvalue::CopyForDeref(place) => {
let operand = self.codegen_operand(&mut bx, &Operand::Copy(place));
(bx, operand)
}
mir::Rvalue::AddressOf(mutability, place) => {
let mk_ptr = move |tcx: TyCtxt<'tcx>, ty: Ty<'tcx>| {
tcx.mk_ptr(ty::TypeAndMut { ty, mutbl: mutability })
@ -698,6 +703,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
pub fn rvalue_creates_operand(&self, rvalue: &mir::Rvalue<'tcx>, span: Span) -> bool {
match *rvalue {
mir::Rvalue::Ref(..) |
mir::Rvalue::CopyForDeref(..) |
mir::Rvalue::AddressOf(..) |
mir::Rvalue::Len(..) |
mir::Rvalue::Cast(..) | // (*)