yuhiping

Fix the issue of byte pool alloc fail when compile with -O3 optimization

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https://github.com/eclipse-threadx/threadx/issues/334 ## PR checklist - [x] Updated function header with a short description and version number - [x] Added test case for bug fix or new feature - [x] Validated...

Found a bug which causes tx_byte_allocate() not thread-safe when use -O3 optimization!!

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**The way we use byte pool** We use byte pool as heap in our project, the detail code in our project was copied from the following link which implemets CMSIS...