"a\tb\tc\td\n" +
			"a\tb\tc\td\te\n",
	},

	{
		"16b",
		100, 100, 0, '\t', DiscardEmptyColumns,
		"a\vb\v\vd\n" +
			"a\vb\v\vd\ve\n" +
			"a\n" +
			"a\vb\vc\vd\n" +
			"a\vb\vc\vd\ve\n",

		"a\tb\td\n" +
			"a\tb\td\te\n" +
			"a\n" +
			"a\tb\tc\td\n" +
			"a\tb\tc\td\te\n",
	},

	{
		"16b debug",
		100, 100, 0, '\t', DiscardEmptyColumns | Debug,
		"a\vb\v\vd\n" +

			if target.IsAIX() && rt == objabi.R_POWER_TLS_LE {
				// Fixup val, an addis/addi pair of instructions, which generate a 32b displacement
				// from the threadpointer (R13), into a 16b relocation. XCOFF only supports 16b
				// TLS LE relocations. Likewise, verify this is an addis/addi sequence.
				const expectedOpcodes = 0x3C00000038000000
				const expectedOpmasks = 0xFC000000FC000000

	MOVD	0(R10), R11
	MOVD	g_m(R11), R3
	MOVD	m_p(R3), R3
	MOVD	p_raceprocctx(R3), R3
	MOVD	R3, (R4)
	RET

rest:
	// Save registers according to the host PPC64 ABI
	// and reserve 16B for argument storage.
	STACK_AND_SAVE_HOST_TO_GO_ABI(16)

	// Load g, and switch to g0 if not already on it.
	MOVD	runtime·tls_g(SB), R10
	MOVD	0(R10), g

	MOVD	g_m(g), R7
	MOVD	m_g0(R7), R8
	CMP	g, R8

		{[]byte(x16pgm), "align=0x20", false},   // Increased alignment needed
		{[]byte(x32pgm), "align=0x40", false},   // Worst case alignment needed
		{[]byte(x64pgm), "align=0x0", true},     // 0 aligned is default (16B) alignment
		{[]byte(x64pgmA64), "align=0x40", true}, // extra alignment + nop
		{[]byte(x64pgmA32), "align=0x20", true}, // extra alignment + nop
	}

	for _, pgm := range pgms {
		tmpfile := filepath.Join(dir, "x.s")

			// The assembler can generate this opcode in 1 (on Power10) or 2 opcodes.

		// Otherwise, see if the large constant can be generated with 2 instructions. If not, load it from memory.
		default:
			// Is this a shifted 16b constant? If so, rewrite it to avoid a creating and loading a constant.
			val := p.From.Offset
			shift := bits.TrailingZeros64(uint64(val))
			mask := int64(0xFFFF) << shift

				// crossing a 64B boundary when the linker assigns the final
				// PC.
				switch p.Pc & 31 {
				case 28: // 32B crossing
					falign = 64
				case 12: // 16B crossing
					if falign < 64 {
						falign = 32
					}
				}
			}

			pc += int64(m)
		}

		c.cursym.Size = pc
	}

	c.cursym.Size = pc
	c.cursym.Func().Align = falign