PR for llvm/llvm-project#56752 #29
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The behaviour of this patch is not great, but it has some side-effects that are required for OpenMPOpt to work. The problem is that when we use `-mlink-builtin-bitcode` we only import used symbols from the runtime. Then OpenMPOpt will insert calls to symbols that were not previously included. This patch removed this implicit behaviour as these functions were kept alive by the `noinline` simply because it kept calls to them in the module. This caused regression in some tests that relied on some OpenMPOpt passes without using LTO. Reverting for the LLVM15 release but will try to fix it more correctly on main. This reverts commit d61d72d. Fixes #56752 (cherry picked from commit b08369f)
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resolves llvm/llvm-project#56752