select {
	case err := <-c:
		if err == nil {
			t.Error("error expected")
		} else if err != io.ErrNoProgress {
			t.Error("unexpected error:", err)
		}
	case <-time.After(time.Second):
		t.Error("test timed out (endless loop in ReadByte?)")
	}
}

// A StringReader delivers its data one string segment at a time via Read.
type StringReader struct {
	data []string
	step int
}

// LTYPE1 nonrem	{ outcode($1, &$2); }
	NEGQ	R11
	NEGQ	4(R11)
	NEGQ	foo+4(SB)

// LTYPE2 rimnon	{ outcode($1, &$2); }
	INT	$4
	DIVB	R11
	DIVB	4(R11)
	DIVB	foo+4(SB)

// LTYPE3 rimrem	{ outcode($1, &$2); }
	SUBQ $4, DI
	SUBQ R11, DI
	SUBQ 4(R11), DI
	SUBQ foo+4(SB), DI
	SUBQ $4, 8(R12)
	SUBQ R11, 8(R12)
	SUBQ R11, foo+4(SB)

// LTYPE4 remrim	{ outcode($1, &$2); }
	CMPB	CX, $4

pkg debug/elf, const R_ALPHA_GPVALUE = 16
pkg debug/elf, const R_ALPHA_HINT = 8
pkg debug/elf, const R_ALPHA_IMMED_BR_HI32 = 22
pkg debug/elf, const R_ALPHA_IMMED_GP_16 = 19
pkg debug/elf, const R_ALPHA_IMMED_GP_HI32 = 20
pkg debug/elf, const R_ALPHA_IMMED_LO32 = 23
pkg debug/elf, const R_ALPHA_IMMED_SCN_HI32 = 21
pkg debug/elf, const R_ALPHA_JMP_SLOT = 26
pkg debug/elf, const R_ALPHA_LITERAL = 4

// LTYPE1 nonrem	{ outcode(int($1), &$2); }
	SETCC	AX
	SETCC	foo+4(SB)

// LTYPE2 rimnon	{ outcode(int($1), &$2); }
	DIVB	AX
	DIVB	foo+4(SB)
	PUSHL	$foo+4(SB)
	POPL		AX

// LTYPE3 rimrem	{ outcode(int($1), &$2); }
	SUBB	$1, AX
	SUBB	$1, foo+4(SB)
	SUBB	BX, AX
	SUBB	BX, foo+4(SB)

// LTYPE4 remrim	{ outcode(int($1), &$2); }
	CMPB	AX, $1
	CMPB	foo+4(SB), $4
	CMPB	BX, AX
	CMPB	foo+4(SB), BX

			{"TrimRightFunc", TrimRightFunc, tc.rightOut},
		}
		for _, trimmer := range trimmers {
			actual := trimmer.trim([]byte(tc.in), tc.f.f)
			if actual == nil && trimmer.out != nil {
				t.Errorf("%s(%q, %q) = nil; want %q", trimmer.name, tc.in, tc.f.name, trimmer.out)
			}
			if actual != nil && trimmer.out == nil {
				t.Errorf("%s(%q, %q) = %q; want nil", trimmer.name, tc.in, tc.f.name, actual)
			}

pkg debug/elf, const R_ALPHA_GPVALUE R_ALPHA
pkg debug/elf, const R_ALPHA_HINT R_ALPHA
pkg debug/elf, const R_ALPHA_IMMED_BR_HI32 R_ALPHA
pkg debug/elf, const R_ALPHA_IMMED_GP_16 R_ALPHA
pkg debug/elf, const R_ALPHA_IMMED_GP_HI32 R_ALPHA
pkg debug/elf, const R_ALPHA_IMMED_LO32 R_ALPHA
pkg debug/elf, const R_ALPHA_IMMED_SCN_HI32 R_ALPHA
pkg debug/elf, const R_ALPHA_JMP_SLOT R_ALPHA
pkg debug/elf, const R_ALPHA_LITERAL R_ALPHA