Adrian Prantl 43fcc262e7 [Support] Support 5-component VersionTuples (#181275) ...

LLDB parses compiler versions out of DW_AT_producer DWARF attributes
into a VersionTuple. The Swift compiler recently switched to 5-component
version numbers. In order to support this version scheme without growing
the size of VersionTuple, this patch dedicates the last 10 bits of the
build version to a 5th "sub-build" component. The Swift compiler
currently uses 1 digit for this and promises to never use more than 3
digits for the last 3 components.

This patch still leaves 6 decimal digits for the build component for
other version schemes.

rdar://170181060

2026-02-13 12:45:04 -08:00

3.6 KiB

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