Jeremy Morse 7a930ce327 [DWARF] Emit a minimal line-table for totally empty functions (#107267) ...

In degenerate but legal inputs, we can have functions that have no source
locations at all -- all the DebugLocs attached to instructions are empty.
LLVM didn't produce any source location for the function; with this patch
it will at least emit the function-scope source location. Demonstrated by
empty-line-info.ll

The XCOFF test modified has similar symptoms -- with this patch, the size
of the ".dwline" section grows a bit, thus shifting some of the file
internal offsets, which I've updated.

2024-09-09 12:54:45 +01:00

6.7 KiB

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