[PATCH] D146720: [AMDGPU][printf] Run AMDGPUPrintfRuntimeBindingPass in -O0

[Juan Manuel Martinez Caamaño via Phabricator via llvm-commits]

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AMDGPUPrintfRuntimeBindingPass is not run in the IR optimization
pipeline with -O0.

This means that with OpenCL the printf definition coming from
device_libs gets linked with the user's code, which blocks
AMDGPUPrintfRuntimeBindingPass from working after the linkage is done.

This patch also adds an opt-pipeline.ll test inspired from
llc-pipeline.ll to document the optimization pipeline.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146720

Files:
  llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  llvm/test/CodeGen/AMDGPU/opencl-printf-pipeline.ll
  llvm/test/CodeGen/AMDGPU/opt-pipeline.ll

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