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| author | Andre Kuhlenschmidt <andre.kuhlenschmidt@gmail.com> | 2025-07-03 12:36:34 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-03 12:36:34 -0700 |
| commit | 67d6679c91e14e17981e4ea0340f91c79e9524da (patch) | |
| tree | d8e13ec86674fbbde343553f0f633ddcc4e23448 /flang/lib/Parser/token-sequence.cpp | |
| parent | 08ed9e17bf873198608b5e213e086f7bac07e40b (diff) | |
| download | llvm-67d6679c91e14e17981e4ea0340f91c79e9524da.zip llvm-67d6679c91e14e17981e4ea0340f91c79e9524da.tar.gz llvm-67d6679c91e14e17981e4ea0340f91c79e9524da.tar.bz2 | |
[flang][prescanner] fix invalid check (#146613)
`TokenSequence::pop_back()` had a check assumed that tokens are never
empty. Loosen this check since isn't true.
towards #146362
Diffstat (limited to 'flang/lib/Parser/token-sequence.cpp')
| -rw-r--r-- | flang/lib/Parser/token-sequence.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/flang/lib/Parser/token-sequence.cpp b/flang/lib/Parser/token-sequence.cpp index 40a074e..9deb513 100644 --- a/flang/lib/Parser/token-sequence.cpp +++ b/flang/lib/Parser/token-sequence.cpp @@ -30,7 +30,8 @@ void TokenSequence::clear() { void TokenSequence::pop_back() { CHECK(!start_.empty()); - CHECK(nextStart_ > start_.back()); + // If the last token is empty then `nextStart_ == start_.back()`. + CHECK(nextStart_ >= start_.back()); std::size_t bytes{nextStart_ - start_.back()}; nextStart_ = start_.back(); start_.pop_back(); |