Generate asm directly when cross-compiling #3446

Job	Run time
codegen	33s
linux-32 (Release)	2m 22s
linux-no-asm	4m 4s
linux (gcc, g++, Release, ubuntu-22.04)	16m 17s
linux-arm	10m 32s
chromium	1m 45s
linux (clang, clang++, Debug, ubuntu-22.04)	3m 45s
linux-32-no-asm	2m 21s
linux (gcc, g++, Release, ubuntu-24.04)	8m 49s
linux (gcc, g++, Debug, ubuntu-22.04)	5m 1s
linux (clang, clang++, Debug, ubuntu-24.04)	3m 14s
linux (clang, clang++, Release, ubuntu-22.04)	5m 31s
linux-32 (Debug)	2m 15s
linux (clang, clang++, Release, ubuntu-24.04)	7m 9s
linux (gcc, g++, Debug, ubuntu-24.04)	3m 58s
mingw-no-asm	48s
mingw-use-gas	49s
windows_clang (clang-cl, Release)	2m 17s
windows_vs-no-asm (x64)	5m 2s
windows_clang (clang, Debug)	1m 57s
windows_vs-no-asm (Win32)	4m 20s
windows_vs (x64, Release)	4m 24s
windows_clang (clang-cl, Debug)	2m 0s
mingw-no-asm-explicit	1m 13s
windows_vs (x64, Debug)	6m 30s
windows_vs (Win32, Release)	6m 9s
windows_vs (Win32, Debug)	3m 4s
windows_clang (clang, Release)	2m 14s
mingw	0s
Universal Binary Testing (STATIC ON) w/ Xcode	2m 16s
tvOS	23s
mac (Debug, APPLE_STATIC_LOADER=ON)	2m 23s
iOS	23s
mac (Release, APPLE_STATIC_LOADER=ON)	3m 18s
mac (Debug, APPLE_STATIC_LOADER=OFF)	2m 35s
mac (Release, APPLE_STATIC_LOADER=OFF)	3m 16s
Universal Binary Testing (STATIC ON) w/ Ninja	3m 6s
Universal Binary Testing (STATIC OFF) w/ Ninja	2m 27s
Universal Binary Testing (STATIC OFF) w/ Xcode	3m 11s
	2h 21m 41s

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