Silicon Labs EFM32: Up to which low power mode is the operating (EM0) GPIO state retained?

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Silicon Labs EFM32: What low power modes are the operational (EM0) GPIO states retained?

EFx32

The ability to retain GPIO state is covered as GPIO state retention in the EMU-EnergyManagement Unit chapter of the reference manual. (Excluding EFM32G)
In products other than EFM32G (WG, PG, GG, JG, LG, TG, HG, ZG), the GPIO state is maintained up to EM4 (EM1 to EM4, PG/JG is EM1 to EM4H/S). However, it is not applicable when using Backup mode in EM4.
Regarding the EFM32G, although there is no description in the reference manual, the state is maintained up to EM3 (EM1 to EM3). Please note that it is different from other families.

The figure below is an excerpt from the EFM32GG reference manual.

Article header em0%ef%bc%89%e3%81%aegpio%e7%8a%b6%e6%85%8b%e3%81%af%e3%81%a9%e3%81%ae%e4%bd% 8e%e6%b6%88%e8%b2%bb%e9%9b%bb%e5%8a%9b%e3%83%a2%e3%83%bc%e3%83%89%e3%81%be% e3%81%a7%e4%bf%9d%e6%8c%81%e3%81%95%e3%82%8c%e3%81%be%e3%81%99%e3%81%8b%ef% bc%9f%20 1

2016/4/14: Added EFM32PG/JG

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