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c5a62b8058
In the rustc_llvm build script, don't consider arm64* to be 32-bit The build script for `rustc_llvm` needs to detect 32-bit targets so that it links against `libatomics`. To do this, it matches the target architecture against `arm`, unfortunately incorrectly matches Arm64EC, Arm64E, etc. This change adds a check that the target arch doesn't match `arm64`.