[PATCH] D124857: [AIX][PGO] Enable linux style PGO on AIX

[wael yehia via Phabricator via llvm-commits]

w2yehia created this revision.
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This patch switches the PGO implementation on AIX from using the runtime registration-based section tracking to the `__start_SECNAME`/`__stop_SECNAME` based. 
In order to enable the recognition of `__start_SECNAME`/`__stop_SECNAME` symbols in the AIX linker, the `-bdbg:namedsects:ss` needs to be used.


https://reviews.llvm.org/D124857

Files:
  clang/lib/Driver/ToolChains/AIX.cpp
  clang/test/Driver/aix-ld.c
  compiler-rt/lib/profile/InstrProfilingPlatformLinux.c
  compiler-rt/lib/profile/InstrProfilingPlatformOther.c
  llvm/lib/Transforms/Instrumentation/InstrProfiling.cpp
  llvm/test/Instrumentation/InstrProfiling/platform.ll
  llvm/test/Instrumentation/InstrProfiling/profiling.ll

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