[PATCH] D21374: [RFC] Generate long nop instructions depending on function-specific subtarget info

Andrey Turetskiy via llvm-commits llvm-commits at lists.llvm.org
Mon Jul 4 06:57:52 PDT 2016

aturetsk added a comment.

Can we use llvm.ident metadata which is stored and loaded from an assembly file to keep function-specific subtarget information across assembly?
For example we could store "llvm/multiversioning/symbol_name/cpu_name/feature_bits_hex" string in ident metadata for functions which subtarget info differs from module's info in AsmPrinter::FinalizeMachineFunction.


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