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| author | David Goldman <dallasftball@gmail.com> | 2019-09-13 14:43:24 +0000 |
|---|---|---|
| committer | David Goldman <dallasftball@gmail.com> | 2019-09-13 14:43:24 +0000 |
| commit | 6d186504216446a1620628057c10bddb9b0b9085 (patch) | |
| tree | c0969ef1a5b3128d65be8df3b4d66a57df0d845f /llvm/lib/Support/VirtualFileSystem.cpp | |
| parent | e7e8b51b0314d414ce647ca790186ecbbe567fd7 (diff) | |
| download | llvm-6d186504216446a1620628057c10bddb9b0b9085.zip llvm-6d186504216446a1620628057c10bddb9b0b9085.tar.gz llvm-6d186504216446a1620628057c10bddb9b0b9085.tar.bz2 | |
[Sema][Typo Correction] Fix potential infite loop on ambiguity checks
Summary:
This fixes a bug introduced in D62648, where Clang could infinite loop
if it became stuck on a single TypoCorrection when it was supposed to
be testing ambiguous corrections. Although not a common case, it could
happen if there are multiple possible corrections with the same edit
distance.
The fix is simply to wipe the TypoExpr from the `TransformCache` so that
the call to `TransformTypoExpr` doesn't use the `CachedEntry`.
Reviewers: rsmith
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67515
llvm-svn: 371859
Diffstat (limited to 'llvm/lib/Support/VirtualFileSystem.cpp')
0 files changed, 0 insertions, 0 deletions