VADDPD Z22, Z1, K7, Z20          // 62a1f54f58e6
	VADDPD (AX), Z1, K1, Z1          // 62f1f5495808
	VADDPD 8(R10), Z10, K4, Z10      // 6251ad4c589208000000
	VADDPD (R10)(AX*4), Z20, K7, Z20 // 62c1dd47582482
	// EVEX gather (also tests Z as VSIB index).
	VPGATHERDD 360(AX)(X2*4), K1, X1    // 62f27d09904c905a
	VPGATHERDD 640(BP)(X15*8), K3, X14  // 62327d0b90b4fd80020000
	VPGATHERDD 960(R10)(X25*2), K7, X24 // 62027d0790844ac0030000

	}

	r, err := f.Open()
	if err != nil {
		t.Errorf("%v", err)
		return
	}

	// For very large files, just check that the size is correct.
	// The content is expected to be all zeros.
	// Don't bother uncompressing: too big.
	if ft.Content == nil && ft.File == "" && ft.Size > 0 {
		if size != ft.Size {
			t.Errorf("%v: uncompressed size %#x, want %#x", ft.Name, size, ft.Size)
		}
		r.Close()
		return
	}

		names = append(names, n)
	}

	// Bypass gcc if there's nothing left to find out.
	if len(names) == 0 {
		return needType
	}

	// Coerce gcc into telling us whether each name is a type, a value, or undeclared.
	// For names, find out whether they are integer constants.
	// We used to look at specific warning or error messages here, but that tied the
	// behavior too closely to specific versions of the compilers.

	AND	$1, ZR                              // fb0340b2ff031b8a
	ANDW	$1, ZR                              // fb030032ff031b0a
	// TODO: this could have better encoding
	ANDW	$-1, R10                            // 1b0080124a011b0a
	AND	$8, R0, RSP                         // 1f007d92
	ORR	$8, R0, RSP                         // 1f007db2