windows hdr example #3474

Job	Run time
macOS / release / homebrew-clang	5m 17s
Windows / release / msvc	17m 28s
macOS / debug / homebrew-clang	4m 13s
Windows / release / clang-cl	23m 59s
Windows / release / llvm	25m 22s
macOS / release / system-clang	3m 45s
Windows / debug / msvc	24m 44s
macOS / debug / system-clang	3m 54s
Windows / debug / clang-cl	23m 41s
Windows / debug / llvm	24m 56s
	2h 37m 19s

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