RISC-V MCU IDE MRS (MounRiver Studio) development: Setting the optimization level of the function

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RISC-V MCU IDE MRS (MounRiver Studio) development: Setting the optimization level of the function [Copy link]

In the process of embedded development, sometimes in order to debug the code, we need to set a separate optimization level for a single function or multiple functions. The following takes RISC-V MCU IDE MounRiver Studio (MRS) as an example to introduce two methods of adding function optimization levels:

1.__attribute__((optimize(“string”)))

Applicable to setting the optimization level for a single function. Usage: Add it when declaring the function. Note that when using this method, the declaration and definition code of the target function must be separated, otherwise it will cause compilation errors.

2.#pragma GCC optimize (“string”)

Applicable to setting optimization levels for multiple functions . Usage : Add before the function definition . All functions after this statement will use the optimization level specified by this statement.

freebsder

Very detailed, thanks for sharing!