return canonical(dir)
				}
			}
		}
	}
	return def
}

// isSameDir reports whether dir1 and dir2 are the same directory.
func isSameDir(dir1, dir2 string) bool {
	if dir1 == dir2 {
		return true
	}
	info1, err1 := os.Stat(dir1)
	info2, err2 := os.Stat(dir2)
	return err1 == nil && err2 == nil && os.SameFile(info1, info2)
}

    }

    def "generates -extdirs option"() {
        spec.compileOptions.extensionDirs = "/dir1:/dir2"

        expect:
        builder.build() == ["-extdirs", "/dir1:/dir2"] + defaultOptions
    }

    def "generates -classpath option"() {
        def file1 = new File("/lib/lib1.jar")
        def file2 = new File("/lib/lib2.jar")

    (Const64 <typ.UInt64> [umagic64(c).s-1]))

// Signed divide by a negative constant.  Rewrite to divide by a positive constant.
(Div8  <t> n (Const8  [c])) && c < 0 && c != -1<<7  => (Neg8  (Div8  <t> n (Const8  <t> [-c])))
(Div16 <t> n (Const16 [c])) && c < 0 && c != -1<<15 => (Neg16 (Div16 <t> n (Const16 <t> [-c])))
(Div32 <t> n (Const32 [c])) && c < 0 && c != -1<<31 => (Neg32 (Div32 <t> n (Const32 <t> [-c])))

        createJarFileWithProviderConfigurationFile(jarFile6, 'org.gradle.internal.other.Service', 'org.gradle.internal.other.ServiceImpl')
        def inputDirectory = inputFilesDir.createDir('dir1')
        writeClass(inputDirectory, "org/gradle/MyFirstClass")
        writeClass(inputDirectory, "org/gradle/MyAClass")
        writeClass(inputDirectory, "org/gradle/MyBClass")

        when:

	{name: "Avg64u", argLength: 2, typ: "UInt64"}, // 64-bit platforms only

	// For Div16, Div32 and Div64, AuxInt non-zero means that the divisor has been proved to be not -1
	// or that the dividend is not the most negative value.
	{name: "Div8", argLength: 2},  // arg0 / arg1, signed
	{name: "Div8u", argLength: 2}, // arg0 / arg1, unsigned
	{name: "Div16", argLength: 2, aux: "Bool"},
	{name: "Div16u", argLength: 2},

(Select0 (Mul64uhilo x y)) => (MULHDU x y)
(Select1 (Mul64uhilo x y)) => (MULLD x y)

(Div64 [false] x y) => (DIVD x y)
(Div64u ...) => (DIVDU ...)
(Div32 [false] x y) => (DIVW x y)
(Div32u ...) => (DIVWU ...)
(Div16 [false]  x y) => (DIVW  (SignExt16to32 x) (SignExt16to32 y))
(Div16u x y) => (DIVWU (ZeroExt16to32 x) (ZeroExt16to32 y))
(Div8 x y) => (DIVW  (SignExt8to32 x) (SignExt8to32 y))
(Div8u x y) => (DIVWU (ZeroExt8to32 x) (ZeroExt8to32 y))

	ownTmpDir      bool // set to true if tmp dir created by linker (e.g. no -tmpdir)
)

func init() {
	flag.Var(&rpath, "r", "set the ELF dynamic linker search `path` to dir1:dir2:...")
	flag.Var(&flagExtld, "extld", "use `linker` when linking in external mode")
	flag.Var(&flagExtldflags, "extldflags", "pass `flags` to external linker")
	flag.Var(&flagW, "w", "disable DWARF generation")
}

	MULHWUCC R3, R4, R5             // 7ca41817
	MULLDV R3, R4, R5               // 7ca41dd2
	MULLDVCC R3, R4, R5             // 7ca41dd3

	DIVD R3,R4                      // 7c841bd2
	DIVD R3, R4, R5                 // 7ca41bd2
	DIVW R3, R4                     // 7c841bd6
	DIVW R3, R4, R5                 // 7ca41bd6
	DIVDCC R3,R4, R5                // 7ca41bd3
	DIVWCC R3,R4, R5                // 7ca41bd7

		{name: "FDIV", argLength: 2, reg: fp21, asm: "FDIV"},   // arg0/arg1
		{name: "FDIVS", argLength: 2, reg: fp21, asm: "FDIVS"}, // arg0/arg1

		{name: "DIVD", argLength: 2, reg: gp21, asm: "DIVD", typ: "Int64"},   // arg0/arg1 (signed 64-bit)
		{name: "DIVW", argLength: 2, reg: gp21, asm: "DIVW", typ: "Int32"},   // arg0/arg1 (signed 32-bit)
		{name: "DIVDU", argLength: 2, reg: gp21, asm: "DIVDU", typ: "Int64"}, // arg0/arg1 (unsigned 64-bit)

	Flags:  append(ServerFlags, GlobalFlags...),
	Action: serverMain,
	CustomHelpTemplate: `NAME:
  {{.HelpName}} - {{.Usage}}

USAGE:
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR1 [DIR2..]
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64}
  {{.HelpName}} {{if .VisibleFlags}}[FLAGS] {{end}}DIR{1...64} DIR{65...128}

DIR: