[PATCH] D123599: [DebugInfo][InstrRef] Describe value sizes when spilt to stack

[Jeremy Morse via Phabricator via llvm-commits]

jmorse added a comment.

Thanks for the reproducer; while it's mildly hard to interpret what's going on, I think a large block of local stack memory that's the subject of a `dbg.declare`, is being recorded by a

  DBG_VALUE %fixed.stack.0, 0, !123, !DIExpression()

In the entry block, rather than being put in the side-table. That then gets translated by the prolog/epilog pass into an indirect DBG_VALUE with an offset added, which then hits this assertion. Happily, I think this too falls into the category of "the assertion is over-zealous" I described above, and can be handled just by the modifications I've made in the revised patch. Woo.


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https://reviews.llvm.org/D123599