"pmovzxbw", "pmovzxbd", "pmovzxbq", "pmovzxwd", "pmovzxwq", "pmovzxdq",
		"pmovsxbw", "pmovsxbd", "pmovsxbq", "pmovsxwd", "pmovsxwq", "pmovsxdq",
		"pblendvb",
	},
	"fma":   {"vfmadd231sd"},
	"movbe": {"movbeqq", "movbeq", "movbell", "movbel", "movbe"},
	"lzcnt": {"lzcntq", "lzcntl", "lzcnt"},
}

// Test to use POPCNT instruction, if available
func TestPopCnt(t *testing.T) {
	for _, tt := range []struct {

	instructions["PSLLDQ"] = x86.APSLLO
	instructions["PSRLDQ"] = x86.APSRLO
	instructions["PADDD"] = x86.APADDL
	// Spellings originally used in CL 97235.
	instructions["MOVBELL"] = x86.AMOVBEL
	instructions["MOVBEQQ"] = x86.AMOVBEQ
	instructions["MOVBEWW"] = x86.AMOVBEW

	return &Arch{
		LinkArch:       linkArch,
		Instructions:   instructions,
		Register:       register,
		RegisterPrefix: nil,