When you install a C++ workload in the Visual Studio installer, it always installs 32-bit, x86-hosted, native and cross compiler tools to build x86 and x64 code. If you include the Universal Windows Platform workload, it also installs x86-hosted cross compiler tools to build ARM code. If you install these workloads on a 64-bit, x64 processor, you also get 64-bit native and cross compiler tools to build x86, x64, and ARM code. The 32-bit and 64-bit tools generate identical code, but the 64-bit tools support more memory for precompiled header symbols and the Whole Program Optimization ([/GL](reference/gl-whole-program-optimization.md) and [/LTCG](reference/ltcg-link-time-code-generation.md)) options. If you run into memory limits when you use the 32-bit tools, try the 64-bit tools.
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