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Use record_operands_moved more aggresively

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This commit is contained in:
Matthew Jasper
2020-10-24 11:18:32 +01:00
parent b766abc88f
commit 7f3e8551dd
13 changed files with 128 additions and 241 deletions
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2
compiler/rustc_mir_build/src/build/expr/stmt.rs
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@@ -3,6 +3,7 @@ use crate::build::{BlockAnd, BlockAndExtension, BlockFrame, Builder};
use crate::thir::*;
use rustc_middle::middle::region;
use rustc_middle::mir::*;
use std::slice;
impl<'a, 'tcx> Builder<'a, 'tcx> {
/// Builds a block of MIR statements to evaluate the THIR `expr`.
@@ -46,6 +47,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
if this.hir.needs_drop(lhs.ty) {
let rhs = unpack!(block = this.as_local_operand(block, rhs));
let lhs = unpack!(block = this.as_place(block, lhs));
this.record_operands_moved(slice::from_ref(&rhs));
unpack!(block = this.build_drop_and_replace(block, lhs_span, lhs, rhs));
} else {
let rhs = unpack!(block = this.as_local_rvalue(block, rhs));