test/MC/X86/directive-arch.s - llvm-project/llvm - Git at Google

 ## We currently parse but ignore .arch directives.
 # RUN: llvm-mc -triple=x86_64 %s | FileCheck /dev/null --implicit-check-not=.arch

 .arch i286
 .arch generic32

 .arch .avx512vl
 .arch .noavx512bw
 .arch .nop
 .arch .sse4.2
	## We currently parse but ignore .arch directives.
	# RUN: llvm-mc -triple=x86_64 %s \| FileCheck /dev/null --implicit-check-not=.arch

	.arch i286
	.arch generic32

	.arch .avx512vl
	.arch .noavx512bw
	.arch .nop
	.arch .sse4.2