gpsp       = gp | buildReg("SP")
		gpspg      = gpg | buildReg("SP")
		gpspsbg    = gpspg | buildReg("SB")
		fp         = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15")
		callerSave = gp | fp | buildReg("g") // runtime.setg (and anything calling it) may clobber g
		r0         = buildReg("R0")
		r1         = buildReg("R1")
		r2         = buildReg("R2")
		r3         = buildReg("R3")
		r4         = buildReg("R4")
	)

		gpg        = gp | buildReg("g")
		gpsp       = gp | buildReg("SP")
		gpspg      = gpg | buildReg("SP")
		gpspsbg    = gpspg | buildReg("SB")
		fp         = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31")
		lo         = buildReg("LO")
		hi         = buildReg("HI")

		gpg        = gp | buildReg("g")
		gpsp       = gp | buildReg("SP")
		gpspg      = gpg | buildReg("SP")
		gpspsbg    = gpspg | buildReg("SB")
		fp         = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31")
		callerSave = gp | fp | buildReg("g") // runtime.setg (and anything calling it) may clobber g

		fp  = buildReg("F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 F13 F14 F15 F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30")
		sp  = buildReg("SP")
		sb  = buildReg("SB")
		gr  = buildReg("g")
		xer = buildReg("XER")
		// cr  = buildReg("CR")
		// ctr = buildReg("CTR")
		// lr  = buildReg("LR")
		tmp     = buildReg("R31")
		ctxt    = buildReg("R11")
		callptr = buildReg("R12")
		// tls = buildReg("R13")

		si         = buildReg("SI")
		gp         = buildReg("AX CX DX BX BP SI DI")
		fp         = buildReg("X0 X1 X2 X3 X4 X5 X6 X7")
		gpsp       = gp | buildReg("SP")
		gpspsb     = gpsp | buildReg("SB")
		callerSave = gp | fp
	)
	// Common slices of register masks
	var (
		gponly = []regMask{gp}
		fponly = []regMask{fp}
	)

	// Common regInfo
	var (
		gp01      = regInfo{inputs: nil, outputs: gponly}

		fp64   = buildReg("F16 F17 F18 F19 F20 F21 F22 F23 F24 F25 F26 F27 F28 F29 F30 F31")
		gpsp   = gp | buildReg("SP")
		gpspsb = gpsp | buildReg("SB")
		// The "registers", which are actually local variables, can get clobbered
		// if we're switching goroutines, because it unwinds the WebAssembly stack.
		callerSave = gp | fp32 | fp64 | buildReg("g")
	)

	// Common regInfo
	var (
		gp01      = regInfo{inputs: nil, outputs: []regMask{gp}}

			t.Fatal("Go buildinf not found")
		}
		data[i+2] = 'N'
		if err := os.WriteFile(name, data, 0666); err != nil {
			t.Fatal(err)
		}
	}

	goVersionRe := regexp.MustCompile("(?m)^go\t.*\n")
	buildRe := regexp.MustCompile("(?m)^build\t.*\n")
	cleanOutputForComparison := func(got string) string {
		// Remove or replace anything that might depend on the test's environment