} else {
			return fmt.Sprintf("%s.UXTW", regname(r))
		}
	case REG_UXTX <= r && r < REG_SXTB:
		if ext != 0 {
			return fmt.Sprintf("%s.UXTX<<%d", regname(r), ext)
		} else {
			return fmt.Sprintf("%s.UXTX", regname(r))
		}
	case REG_SXTB <= r && r < REG_SXTH:
		if ext != 0 {
			return fmt.Sprintf("%s.SXTB<<%d", regname(r), ext)
		} else {
			return fmt.Sprintf("%s.SXTB", regname(r))
		}

package riscv

import (
	"fmt"

	"cmd/internal/obj"
)

func init() {
	obj.RegisterRegister(obj.RBaseRISCV, REG_END, RegName)
	obj.RegisterOpcode(obj.ABaseRISCV, Anames)
	obj.RegisterOpSuffix("riscv64", opSuffixString)
}

func RegName(r int) string {
	switch {
	case r == 0:
		return "NONE"
	case r == REG_G:
		return "g"
	case r == REG_SP:
		return "SP"

			var paramRegs []int8
			for _, regName := range paramNames {
				if regName == "" {
					// forgive extra spaces
					continue
				}
				if regNum, ok := num[regName]; ok {
					paramRegs = append(paramRegs, regNum)
					delete(num, regName)
				} else {
					log.Fatalf("parameter register %s for architecture %s not a register name (or repeated in parameter list)", regName, a.name)
				}
			}
			return paramRegs

		for index, reg := 0, test.regFrom; reg <= test.regTo; index, reg = index+1, reg+1 {
			have := regIndex(int16(reg))
			want := index
			if have != want {
				regName := rconv(int(reg))
				t.Errorf("regIndex(%s):\nhave: %d\nwant: %d",
					regName, have, want)
			}
		}
	}
}

// TestPCALIGN verifies the correctness of the PCALIGN by checking if the
// code can be aligned to the alignment value.

func (v *Value) RegTmp() int16 {
	reg := v.Block.Func.tempRegs[v.ID]
	if reg == nil {
		v.Fatalf("nil tmp register for value: %s\n%s\n", v.LongString(), v.Block.Func)
	}
	return reg.objNum
}

func (v *Value) RegName() string {
	reg := v.Block.Func.RegAlloc[v.ID]
	if reg == nil {
		v.Fatalf("nil register for value: %s\n%s\n", v.LongString(), v.Block.Func)
	}
	return reg.(*Register).name
}

			suffix = fmt.Sprintf(" but got non-%s register %s", descr, RegName(int(r)))
		}
		ctxt.Diag("%v: expected %s register in %s position%s", ins, descr, pos, suffix)
	}
}

func wantNoneReg(ctxt *obj.Link, ins *instruction, pos string, r uint32) {
	if r != obj.REG_NONE {
		ctxt.Diag("%v: expected no register in %s but got register %s", ins, pos, RegName(int(r)))
	}
}

    my @a = @{$ranges[$i]};
    printf "\t0x%x, 0x%x,\n", $a[0], $a[1];
  }
  print "}\n\n";
  my $n = @ranges;
  my $negname = $name;
  if ($negname =~ /:/) {
    $negname =~ s/:/:^/;
  } else {
    $negname =~ y/a-z/A-Z/;
  }
  return "\t`$name`: {+1, code$cname},\n" .
  	"\t`$negname`: {-1, code$cname},\n";
}

my $gen = 0;

sub PrintClasses($@) {
  my ($cname, @classes) = @_;
  my @entries;

		sect := &c.seg.sect[i]
		if sect.segname != "__TEXT" && sect.segname != "__DATA" {
			continue
		}
		if sect.name == "__eh_frame" {
			continue
		}
		name := fmt.Sprintf("%s(%s/%s)", pkg, sect.segname, sect.name)
		s := l.LookupOrCreateSym(name, localSymVersion)
		bld := l.MakeSymbolUpdater(s)
		if bld.Type() != 0 {
			return errorf("duplicate %s/%s", sect.segname, sect.name)
		}

	s.sect = make([]MachoSect, msect)
	return s
}

func newMachoSect(seg *MachoSeg, name string, segname string) *MachoSect {
	if seg.nsect >= seg.msect {
		Exitf("too many sects in segment %s", seg.name)
	}

	s := &seg.sect[seg.nsect]
	seg.nsect++
	s.name = name
	s.segname = segname
	nsect++
	return s
}

// Generic linking code.

var dylib []string

var linkoff int64