Peter Klausler 93f42491a5 [flang] Extend ProvenanceRange::Suffix() to handle crash case ...

Suffix() can be called from AllSources::IntersectionWithSourceFiles()
when a contiguous range of source provenance overlaps a macro expansion.
It skips over the macro expansion and recurses on the remainder of
the range, which might end with a bit that does overlap with a
source file.  However, in the case where the original range is
entirely within the expanded macro, Suffix() crashes when called
with a skip offset greater than the size of the range.

Rather than add logic around this and other calls to Suffix() to
avoid passing an out-of-range skip, it's better to accommodate it
in Suffix() and return an empty result.

Differential Revision: https://reviews.llvm.org/D120843

2022-03-02 15:24:35 -08:00

..

flang

[flang] Extend ProvenanceRange::Suffix() to handle crash case

2022-03-02 15:24:35 -08:00

CMakeLists.txt

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