[clang] [llvm] [SPIR-V] Add SPIR-V structurizer (PR #107408)

[Vyacheslav Levytskyy via cfe-commits]

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VyacheslavLevytskyy wrote:

> OpLoopMerge are taking BB operands, but verifier expected register operand.

Hopefully, the fix may be as simple as to change lib/Target/SPIRV/SPIRVInstrInfo.td line 620-621 `ID:$merge, ID:$continue` into `unknown:$merge, unknown:$continue` as in line 626 for OpBranch:
`def OpBranch: Op<249, (outs), (ins unknown:$label), "OpBranch $label">;`

https://github.com/llvm/llvm-project/pull/107408