[PATCH] D106523: [Bitcode][Asm] Parse metadata value from operand bundles

[Necip Fazil Yildiran via Phabricator via llvm-commits]

necipfazil added a comment.

This is needed for D105909 <https://reviews.llvm.org/D105909> since it attaches type identifiers to call sites as operand bundles with metadata value. Now we can successfully compile LLVM IR with metadata operand bundles to object file while preserving the bundle value.

On the other hand, we cannot read metadata value in and out, i.e., operand bundle value is garbage when LLVM IR is compiled to bitcode, then disassembled back to LLVM IR. One of the tests [1] is a small reproducer.

[1] llvm/test/Bitcode/2021-07-22-Metadata-Operand-Bundles.ll


Repository:
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https://reviews.llvm.org/D106523