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Jason2866 avatar Jason2866 commented on June 12, 2024

Are you sure using the same version? The Arduino IDE 2.3.2 tells nothing about which Arduino core and compiler version used.
It is highly not the case since the used toolchains for ArduinoIDE and Platformio are the same when using the same core.

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calint avatar calint commented on June 12, 2024

I looked at the verbose build output in Arduino and it seems to be the same compiler version and patch.

I am starting to think that the optimizer removes it due to some assumption that is false. It might be a bug.

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Jason2866 avatar Jason2866 commented on June 12, 2024

I would open an issue in this repo https://github.com/espressif/crosstool-NG
It is not a Platformio issue at all.

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calint avatar calint commented on June 12, 2024

Ok. Thanks.

The solution is compiler flag "-flifetime-dse=1"

The compiler assumes something falsely so technically it is a bug.

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