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| author | Tyson Nottingham <tgnottingham@gmail.com> | 2020-09-20 17:40:34 -0700 |
|---|---|---|
| committer | Tyson Nottingham <tgnottingham@gmail.com> | 2020-10-26 13:43:48 -0700 |
| commit | a3623e05429952cd8cbfd875409d3cb7c8f8045d (patch) | |
| tree | aa19065491e4194aeca6d9683f09625ca9276a85 | |
| parent | 0dce3f606e05cffab7361c132a399d3550ab0df8 (diff) | |
| download | rust-a3623e05429952cd8cbfd875409d3cb7c8f8045d.tar.gz rust-a3623e05429952cd8cbfd875409d3cb7c8f8045d.zip | |
rustc_span: avoid hashing ExpnId tag when using cached hash
| -rw-r--r-- | compiler/rustc_span/src/lib.rs | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index d036c078049..746b516a1b6 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -1925,9 +1925,7 @@ impl<CTX: HashStableContext> HashStable<CTX> for ExpnId { return; } - TAG_NOT_ROOT.hash_stable(ctx, hasher); let index = self.as_u32() as usize; - let res = CACHE.with(|cache| cache.borrow().get(index).copied().flatten()); if let Some(res) = res { @@ -1936,6 +1934,7 @@ impl<CTX: HashStableContext> HashStable<CTX> for ExpnId { let new_len = index + 1; let mut sub_hasher = StableHasher::new(); + TAG_NOT_ROOT.hash_stable(ctx, &mut sub_hasher); self.expn_data().hash_stable(ctx, &mut sub_hasher); let sub_hash: Fingerprint = sub_hasher.finish(); |