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This commit is contained in:
Rich Kadel
2020-11-13 09:02:25 -08:00
parent c131063988
commit b4b0ef3e4b
3 changed files with 10 additions and 11 deletions
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15
compiler/rustc_mir/src/transform/coverage/tests.rs
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@@ -35,6 +35,9 @@ use rustc_middle::mir::*;
use rustc_middle::ty::{self, DebruijnIndex, TyS, TypeFlags};
use rustc_span::{self, BytePos, Pos, Span, DUMMY_SP};
// All `TEMP_BLOCK` targets should be replaced before calling `to_body() -> mir::Body`.
const TEMP_BLOCK: BasicBlock = BasicBlock::MAX;
fn dummy_ty() -> &'static TyS<'static> {
thread_local! {
static DUMMY_TYS: &'static TyS<'static> = Box::leak(box TyS::make_for_test(
@@ -123,7 +126,7 @@ impl<'tcx> MockBlocks<'tcx> {
if branch_index > branches.len() {
branches.push((branches.len() as u128, old_otherwise));
while branches.len() < branch_index {
branches.push((branches.len() as u128, START_BLOCK));
branches.push((branches.len() as u128, TEMP_BLOCK));
}
to_block
} else {
@@ -143,7 +146,7 @@ impl<'tcx> MockBlocks<'tcx> {
TerminatorKind::Call {
func: Operand::Copy(self.dummy_place.clone()),
args: vec![],
destination: Some((self.dummy_place.clone(), START_BLOCK)),
destination: Some((self.dummy_place.clone(), TEMP_BLOCK)),
cleanup: None,
from_hir_call: false,
fn_span: DUMMY_SP,
@@ -152,16 +155,14 @@ impl<'tcx> MockBlocks<'tcx> {
}
fn goto(&mut self, some_from_block: Option<BasicBlock>) -> BasicBlock {
self.add_block_from(some_from_block, TerminatorKind::Goto { target: START_BLOCK })
self.add_block_from(some_from_block, TerminatorKind::Goto { target: TEMP_BLOCK })
}
fn switchint(&mut self, some_from_block: Option<BasicBlock>) -> BasicBlock {
let move_ = |place: Place<'tcx>| Operand::Move(place);
let discriminant = Place::from(self.new_temp());
let switchint_kind = TerminatorKind::SwitchInt {
discr: move_(discriminant),
discr: Operand::Move(Place::from(self.new_temp())),
switch_ty: dummy_ty(),
targets: SwitchTargets::static_if(0, START_BLOCK, START_BLOCK),
targets: SwitchTargets::static_if(0, TEMP_BLOCK, TEMP_BLOCK),
};
self.add_block_from(some_from_block, switchint_kind)
}