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In -fprofile-instr-generate compilation, to remove the redundant profile variables for the COMDAT functions, these variables are placed in the same COMDAT group as its associated function. This way when the COMDAT function is not picked by the linker, those profile variables will also not be output in the final binary. This may cause warning when mix link objects built w and wo -fprofile-instr-generate. This patch puts the profile variables for COMDAT functions to its own COMDAT group to avoid the problem. Patch by xur. Differential Revision: http://reviews.llvm.org/D12248 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248440 91177308-0d34-0410-b5e6-96231b3b80d8
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