[PATCH] D36436: [AMDGPU] Ported and adopted AMDLibCalls pass

[Stanislav Mekhanoshin via Phabricator via llvm-commits]

rampitec created this revision.
Herald added subscribers: t-tye, tpr, dstuttard, mgorny, nhaehnle, wdng, kzhuravl, arsenm.

The pass does simplifications of well known AMD library calls.
If given -amdgpu-prelink option it works in a pre-link mode which
allows to reference new library functions which will be linked in
later.

In addition it also used to process traditional AMD option
-fuse-native which allows to replace some of the functions with
their fast native implementations from the library.

The necessary glue to pass the prelink option and translate
-fuse-native is to be added to the driver.


https://reviews.llvm.org/D36436

Files:
  lib/Target/AMDGPU/AMDGPU.h
  lib/Target/AMDGPU/AMDGPULibCalls.cpp
  lib/Target/AMDGPU/AMDGPULibFunc.cpp
  lib/Target/AMDGPU/AMDGPULibFunc.h
  lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
  lib/Target/AMDGPU/CMakeLists.txt
  test/CodeGen/AMDGPU/simplify-libcalls.ll

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