[PATCH] D81959: [HIP] Enable -amdgpu-internalize-symbols

[Yaxun Liu via Phabricator via cfe-commits]

yaxunl created this revision.
yaxunl added reviewers: arsenm, rampitec, tra, ashi1.
Herald added subscribers: t-tye, tpr, dstuttard, wdng, kzhuravl.

Enable -amdgpu-internalize-symbols to eliminate unused functions and global variables
for whole program to speed up compilation and improve performance.

For -fno-gpu-rdc, -amdgpu-internalize-symbols is passed to clang -cc1.

For -fgpu-rdc, -amdgpu-internalize-symbols is passed to lld.


https://reviews.llvm.org/D81959

Files:
  clang/lib/Driver/ToolChains/HIP.cpp
  clang/test/Driver/hip-link-save-temps.hip
  clang/test/Driver/hip-save-temps.hip
  clang/test/Driver/hip-toolchain-no-rdc.hip
  clang/test/Driver/hip-toolchain-rdc-separate.hip
  clang/test/Driver/hip-toolchain-rdc.hip

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