[Bitcode] Store type IDs for values

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This is the next step towards supporting bitcode auto upgrade with
opaque pointers. The ValueList now stores the Value* together with
its associated type ID, which allows inspecting the original pointer
element type of arbitrary values.

This is a largely mechanical change threading the type ID through
various places. I've left TODOTypeID placeholders in a number of
places where determining the type ID is either non-trivial or
requires allocating a new type ID not present in the original
bitcode. For this reason, the new type IDs are also not used for
anything yet (apart from propagation). They will get used once the
TODOs are resolved.

Differential Revision: https://reviews.llvm.org/D119821

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This commit is contained in:

Nikita Popov

2022-02-14 17:00:41 +01:00

parent 79c9072dc0

commit b6eafba296

4 changed files with 323 additions and 186 deletions

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435

llvm/lib/Bitcode/Reader/BitcodeReader.cpp

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