/** Byte 0 reserved flag 3. Must be 0 unless negotiated otherwise. */
  internal const val B0_FLAG_RSV3 = 16

  /** Byte 0 mask for the frame opcode. */
  internal const val B0_MASK_OPCODE = 15

  /** Flag in the opcode which indicates a control frame. */
  internal const val OPCODE_FLAG_CONTROL = 8

  /**
   * Byte 1 flag for whether the payload data is masked.
   *
   * If this flag is set, the next four

	b [6]byte // not 4-byte aligned
}

func f(b [6]byte) T {
	var x [1000]int // a large stack frame
	_ = x
	return T{b: b}
}

// Arg symbol's base address may be not at an aligned offset to
// SP. Folding arg's address into load/store may cause odd offset.
func move(a, b [20]byte) [20]byte {
	var x [1000]int // a large stack frame
	_ = x
	return b // b is not 8-byte aligned to SP
}
func zero() ([20]byte, [20]byte) {

				}
				// funcdata for functions with no local variables in frame.
				// Define two zero-length bitmaps, because the same index is used
				// for the local variables as for the argument frame, and assembly
				// frames have two argument bitmaps, one without results and one with results.
				// Write []uint32{2, 0}.
				b := make([]byte, 8)

 * callee-save, so they must be saved explicitly.
 */
.globl crosscall_ppc64
crosscall_ppc64:
	// Start with standard C stack frame layout and linkage
	mflr	%r0
	std	%r0, 16(%r1)	// Save LR in caller's frame
	mfcr	%r0
	std	%r0, 8(%r1)	// Save CR in caller's frame
	stdu	%r1, -FRAME_SIZE(%r1)
	std	%r2, 24(%r1)

	FOR_EACH_GPR std
	FOR_EACH_FPR stfd
	FOR_EACH_VR stvx

	// Set up Go ABI constant registers

	// corresponding to this panicked frame and ignore
	// the frame entirely.
	var x *int
	var b bool
	if b {
		y := make([]int, 1)
		runtime.GC()
		x = &y[0]
	}
	println(*x)
}

func test2() {
	// Same as test1, but the fault happens in the function with the defer.
	// The runtime should see the defer and garbage collect the frame
	// as if the PC were immediately after the defer statement.

	// Gather our arguments into registers.
	MOVQ	fn+0(FP), BX
	MOVQ	frame+8(FP), CX
	MOVQ	ctxt+16(FP), DX
	// Compute the size of the frame, including return PC and, if
	// GOEXPERIMENT=framepointer, the saved base pointer
	LEAQ	fn+0(FP), AX
	SUBQ	SP, AX   // AX is our actual frame size
	SUBQ	AX, DI   // Allocate the same frame size on the g stack
	MOVQ	DI, SP

	MOVQ	BX, 0(SP)
	MOVQ	CX, 8(SP)

 * https, etc.) of the URL, not the protocol (http/1.1, spdy/3.1, etc.). OkHttp uses the word
 * *protocol* to identify how HTTP messages are framed.
 *
 * [ietf_alpn]: http://tools.ietf.org/html/draft-ietf-tls-applayerprotoneg
 */
enum class Protocol(private val protocol: String) {
  /**

	// Build a 32-byte stack frame for us for this call.
	// Saved LR (none available) is at the bottom,
	// then the PC argument for setsigsegv,
	// then a copy of the LR for us to restore.
	MOVD.W $0, -32(RSP)
	MOVD R1, 8(RSP)
	MOVD R2, 16(RSP)
	BL runtime·setsigsegv(SB)
	MOVD 8(RSP), R1
	MOVD 16(RSP), R2

	// Build a 16-byte stack frame for the simulated

	// badCharSkip[b] is len(pattern).
	//
	// Whenever a mismatch is found with byte b in the text, we can safely
	// shift the matching frame at least badCharSkip[b] until the next time
	// the matching char could be in alignment.
	badCharSkip [256]int

	// goodSuffixSkip[i] defines how far we can shift the matching frame given
	// that the suffix pattern[i+1:] matches, but the byte pattern[i] does
	// not. There are two cases to consider:
	//

	}
	if l.stack%16 != 0 {
		l.stack += 8 // SP needs 16-byte alignment
	}

	// allocate frame, save PC of interrupted instruction (in LR)
	p("MOVD R30, %d(RSP)", -l.stack)
	p("SUB $%d, RSP", l.stack)
	p("MOVD R29, -8(RSP)") // save frame pointer (only used on Linux)
	p("SUB $8, RSP, R29")  // set up new frame pointer
	// On iOS, save the LR again after decrementing SP. We run the