[Bug middle-end/103670] Incorrect optimization of loop termination: Early exit with any optimization

[robert.muench at saphirion dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103670

--- Comment #3 from Robert M. Münch <robert.muench at saphirion dot com> ---
I updated to GCC 11.2, which has the same problem but after 4 rounds, not 3.

GCC 10.3 Output:

9512] ==> GetAdapterMACAddress
[9512]  parameter check dwRetVal: 0 number: 0
[9512]  AddressLenth: 6
[9512]  i: 0 offset: 0, AddressLenth: 6
[9512]  i: 1 offset: 3, AddressLenth: 6
[9512]  i: 2 offset: 6, AddressLenth: 6
[9512] <- OK: 00-1C-42- AddressLength: 3

GCC 11.2 Output:

[7128] ==> GetAdapterMACAddress
[7128]  parameter check dwRetVal: 0 number: 0
[7128]  AddressLenth: 6
[7128]  i: 0 offset: 0, AddressLenth: 6
[7128]  i: 1 offset: 3, AddressLenth: 6
[7128]  i: 2 offset: 6, AddressLenth: 6
[7128]  i: 3 offset: 9, AddressLenth: 6
[7128] <- OK: 00-1C-42-10- AddressLength: 4