(AND <t> x:(MOVDconst [m]) n) && t.Size() == 4 && isPPC64WordRotateMask(m) => (RLWINM [encodePPC64RotateMask(0,m,32)] n)

// When PCRel is supported, paddi can add a 34b signed constant in one instruction.
(ADD (MOVDconst [m]) x) && supportsPPC64PCRel() && (m<<30)>>30 == m => (ADDconst [m] x)

// a call to PLT.
func isPLTCall(rt objabi.RelocType) bool {
	const pcrel = 1
	switch rt {
	// ARM64
	case objabi.ElfRelocOffset + objabi.RelocType(elf.R_AARCH64_CALL26),
		objabi.ElfRelocOffset + objabi.RelocType(elf.R_AARCH64_JUMP26),
		objabi.MachoRelocOffset + MACHO_ARM64_RELOC_BRANCH26*2 + pcrel:
		return true

	// ARM
	case objabi.ElfRelocOffset + objabi.RelocType(elf.R_ARM_CALL),

				p.From.Sym.Set(obj.AttrNoSplit, true)
			}

			p.To.Offset = int64(autosize)

			q = p

			if NeedTOCpointer(c.ctxt) && !isNOTOCfunc(c.cursym.Name) {
				// When compiling Go into PIC, without PCrel support, all functions must start
				// with instructions to load the TOC pointer into r2:
				//
				//	addis r2, r12, .TOC.-func@ha
				//	addi r2, r2, .TOC.-func@l+4
				//

// Fold address into load/store.
// If power10 with PCRel is not available, then
// the assembler needs to generate several instructions and use
// temp register for accessing global, and each time it will reload

func hasSmallRotate(c *Config) bool {
	switch c.arch {
	case "amd64", "386":
		return true
	default:
		return false
	}
}

func supportsPPC64PCRel() bool {
	// PCRel is currently supported for >= power10, linux only
	// Internal and external linking supports this on ppc64le; internal linking on ppc64.
	return buildcfg.GOPPC64 >= 10 && buildcfg.GOOS == "linux"
}