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Qualcomm Snapdragon X1 Elite GCC vs. LLVM Clang Compiler Performance
Since recently picking up a Qualcomm Snapdragon X Elite laptop for Linux testing now that the Linux support is starting to evolve into better shape (albeit still with many rough corners limiting the daily usability of such devices with Linux), one of the areas I was curious about was looking at the performance of Linux binaries with GCC vs.
LLVM/Clang has long enjoyed a lot of interest from ARM and SoC vendors thanks to Google relying heavily on the LLVM-based compiler for Android as well as Apple's Xcode being derived from LLVM/Clang. So with the Acer Swift 14 AI laptop (SF14-11T-X3RZ) that I have been using for Qualcomm Snapdragon X Elite (X1E-78-100) testing under Linux, I ran some benchmarks for curiosity sake of different C/C++ open-source programs built under GCC and then LLVM Clang for reference of those resulting binaries. Building out a number of different open-source codebases and then benchmarking the binaries built under GCC 14 and LLVM/Clang 20 reaffirmed prior compiler performance experiences on AArch64 seen across Ampere ARM64 server platforms and other hardware.
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