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handle edge-case of a recursion limit of 0

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This commit is contained in:
Rémy Rakic 2023-08-29 19:02:24 +00:00
parent bb90f81070
commit 7762ac7bb5
1 changed files with 5 additions and 1 deletions
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6
compiler/rustc_trait_selection/src/solve/search_graph/mod.rs
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@ -51,9 +51,13 @@ pub(super) struct SearchGraph<'tcx> {
impl<'tcx> SearchGraph<'tcx> {
pub(super) fn new(tcx: TyCtxt<'tcx>, mode: SolverMode) -> SearchGraph<'tcx> {
let local_overflow_limit = {
let recursion_limit = tcx.recursion_limit().0;
if recursion_limit == 0 { 0 } else { recursion_limit.ilog2() as usize }
};
Self {
mode,
local_overflow_limit: tcx.recursion_limit().0.ilog2() as usize,
local_overflow_limit,
stack: Default::default(),
provisional_cache: ProvisionalCache::empty(),
}