Francis Visoiu Mistrih 4e799ada58 [CodeGen] Attach no-builtin attributes to function definitions with no Decl ...

When using -fno-builtin[-<name>], we don't attach the IR attributes to
function definitions with no Decl, like the ones created through
`CreateGlobalInitOrDestructFunction`.

This results in projects using -fno-builtin or -ffreestanding to start
seeing symbols like _memset_pattern16.

The fix changes the behavior to always add the attribute if LangOptions
requests it.

Differential Revision: https://reviews.llvm.org/D73495

2020-01-28 13:59:08 -08:00

7.4 KiB

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