On 08.06.26 02:22, EXT Tim Blechmann via Development wrote:
clang-cl functions as drop-in replacement for msvc that would deliver superior codegen without the need to migrate to another runtime library. but unfortunately clang-cl is still not supported by qt (neither officially, nor with CI build tests). i hope that qt could officially support clang-cl at one point (and use it to build their binary distribution)
I have also built a PGO version of clang-cl as a side-effect of building clangd for Qt Creator.
At Qt Creator 20: faster clangd <https://www.qt.io/blog/qt-creator-20-faster-clangd> I have a benchmark of building Qt Creator itself with this clang-cl build.
The compilation speed up was 32% for x64 and 43% for arm64, which would help get faster CI builds for Qt.
Cheers, Cristian.
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