Arm keil optimization

Hi sir, My IDE is arm keilv5. And I want to know what the compiler really do when the optimization is turn on(-o1 -o2 -o3 and cross module optimization). I just found some brief descriptions. But...
Optimization difference between C and C++

I noticed a optimization difference between compiling a simple source code with ARM GCC in C and C++. The C++ version seems to optimize a lot less stack usage. To demonstrate this problem, I compiled...
Resetting the stack pointer in "noreturn" functions?

Architecture: Cortex-M0 Toolchain: gcc-arm-none-eabi-6-2017-q2-update, gcc-arm-none-eabi-8-2018-q4-major In an attempt to mitigate the possibility of stack overflow I would like to reset the stack...
ARM NEON optimization

Welcome to the ARM NEON optimization guide! 1. Introduction After reading the article ARM NEON programming quick reference , I believe you have a basic understanding of ARM NEON programming. But...
BaseFVP: undef behavior or emulation bug?

Version: Fast Models [11.4.37 (Jun 19 2018)] (Free) on Linux x86_64 Repro: here . The program creates two binaries s.bin and ns.bin, and concatenates them into pkg.bin. The package is provided to...