[PATCH] D77543: [mlir][spirv] Fix wrong Phi parent block for back-to-back loops

[Lei Zhang via Phabricator via llvm-commits]

antiagainst created this revision.
antiagainst added reviewers: denis13, hanchung.
Herald added subscribers: llvm-commits, grosul1, bader, Joonsoo, liufengdb, aartbik, lucyrfox, mgester, arpith-jacob, nicolasvasilache, shauheen, burmako, jpienaar, rriddle, mehdi_amini.
Herald added a reviewer: mravishankar.
Herald added a project: LLVM.

If we have two back-to-back loops with block arguments, the OpPhi
instructions generated for the second loop's block arguments should
have use the merge block of the first SPIR-V loop structure as
their incoming parent block.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D77543

Files:
  mlir/lib/Dialect/SPIRV/Serialization/Serializer.cpp
  mlir/test/Dialect/SPIRV/Serialization/phi.mlir

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