Add assembler, disassembler and linker support for power9.

include/opcode/
	* ppc.h (PPC_OPCODE_POWER9): New define.
	(PPC_OPCODE_VSX3): Likewise.

opcodes/
	* ppc-dis.c (ppc_opts): Add "power9" and "pwr9" entries.
	Add PPC_OPCODE_VSX3 to the vsx entry.
	(powerpc_init_dialect): Set default dialect to power9.
        * ppc-opc.c (insert_dcmxs, extract_dcmxs, insert_dxd, extract_dxd,
        insert_dxdn, extract_dxdn, insert_l0, extract_l0, insert_l1,
        extract_l1 insert_xtq6, extract_xtq6): New static functions.
        (insert_esync): Test for illegal L operand value.
	(DCMX, DCMXS, DXD, NDXD, L0, L1, RC, FC, UIM6, X_R, RIC, PRS, XSQ6,
	XTQ6, LRAND, IMM8, DQX, DQX_MASK, DX, DX_MASK, VXVAPS_MASK, VXVA,XVA,
	XX2VA, XVARC, XBF_MASK, XX2UIM4_MASK, XX2BFD_MASK, XX2DCMXS_MASK,
	XVA_MASK, XRLA_MASK, XBFRARB_MASK, XLRAND_MASK, POWER9, PPCVEC3,
	PPCVSX3): New defines.
	(powerpc_opcodes) <ps_cmpu0, ps_cmpo0, ps_cmpu1, ps_cmpo1, fcmpu,
	fcmpo, ftdiv, ftsqrt>: Use XBF_MASK.
	<mcrxr>: Use XBFRARB_MASK.
	<addpcis, bcdcfn., bcdcfsq., bcdcfz., bcdcpsgn., bcdctn., bcdctsq.,
	bcdctz., bcds., bcdsetsgn., bcdsr., bcdtrunc., bcdus., bcdutrunc.,
	cmpeqb, cmprb, cnttzd, cnttzd., cnttzw, cnttzw., copy, copy_first,
	cp_abort, darn, dtstsfi, dtstsfiq, extswsli, extswsli., ldat, ldmx,
	lwat, lxsd, lxsibzx, lxsihzx, lxssp, lxv, lxvb16x, lxvh8x, lxvl, lxvll,
	lxvwsx, lxvx, maddhd, maddhdu, maddld, mcrxrx, mfvsrld, modsd, modsw,
	modud, moduw, msgsync, mtvsrdd, mtvsrws, paste, paste., paste_last,
	rmieg, setb, slbieg, slbsync, stdat, stop, stwat, stxsd, stxsibx,
	stxsihx, stxssp, stxv, stxvb16x, stxvh8x, stxvl, stxvll, stxvx,
	subpcis, urfid, vbpermd, vclzlsbb, vcmpneb, vcmpneb., vcmpneh,
	vcmpneh., vcmpnew, vcmpnew., vcmpnezb, vcmpnezb., vcmpnezh, vcmpnezh.,
	vcmpnezw, vcmpnezw., vctzb, vctzd, vctzh, vctzlsbb, vctzw, vextractd,
	vextractub, vextractuh, vextractuw, vextsb2d, vextsb2w, vextsh2d,
	vextsh2w, vextsw2d, vextublx, vextubrx, vextuhlx, vextuhrx, vextuwlx,
	vextuwrx, vinsertb, vinsertd, vinserth, vinsertw, vmul10cuq,
	vmul10ecuq, vmul10euq, vmul10uq, vnegd, vnegw, vpermr, vprtybd,
	vprtybq, vprtybw, vrldmi, vrldnm, vrlwmi, vrlwnm, vslv, vsrv, wait,
	xsabsqp, xsaddqp, xsaddqpo, xscmpeqdp, xscmpexpdp, xscmpexpqp,
	xscmpgedp, xscmpgtdp, xscmpnedp, xscmpoqp, xscmpuqp, xscpsgnqp,
	xscvdphp, xscvdpqp, xscvhpdp, xscvqpdp, xscvqpdpo, xscvqpsdz,
	xscvqpswz, xscvqpudz, xscvqpuwz, xscvsdqp, xscvudqp, xsdivqp,
	xsdivqpo, xsiexpdp, xsiexpqp, xsmaddqp, xsmaddqpo, xsmaxcdp,
	xsmaxjdp, xsmincdp, xsminjdp, xsmsubqp, xsmsubqpo, xsmulqp, xsmulqpo,
	xsnabsqp, xsnegqp, xsnmaddqp, xsnmaddqpo, xsnmsubqp, xsnmsubqpo,
	xsrqpi, xsrqpix, xsrqpxp, xssqrtqp, xssqrtqpo, xssubqp, xssubqpo,
	xststdcdp, xststdcqp, xststdcsp, xsxexpdp, xsxexpqp, xsxsigdp,
	xsxsigqp, xvcmpnedp, xvcmpnedp., xvcmpnesp, xvcmpnesp., xvcvhpsp,
	xvcvsphp, xviexpdp, xviexpsp, xvtstdcdp, xvtstdcsp, xvxexpdp,
	xvxexpsp, xvxsigdp, xvxsigsp, xxbrd, xxbrh, xxbrq, xxbrw, xxextractuw,
	xxinsertw, xxperm, xxpermr, xxspltib>: New instructions.
	<doze, nap, sleep, rvwinkle, waitasec, lxvx, stxvx>: Disable on POWER9.
	<tlbiel, tlbie, sync, slbmfev, slbmfee>: Add additional operands.

include/elf/
	* ppc.h (R_PPC_REL16DX_HA): New reloction.
	* ppc64.h (R_PPC64_REL16DX_HA): Likewise.

bfd/
	* elf32-ppc.c (ppc_elf_howto_raw): Add R_PPC_REL16DX_HA.
	(ppc_elf_reloc_type_lookup): Handle R_PPC_REL16DX_HA.
	(ppc_elf_addr16_ha_reloc): Likewise.
	(ppc_elf_check_relocs): Likewise.
	(ppc_elf_relocate_section): Likewise.
	(is_insn_dq_form): Handle lxv and stxv instructions.
	* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_REL16DX_HA.
	(ppc64_elf_reloc_type_lookup): Handle R_PPC64_REL16DX_HA.
	(ppc64_elf_ha_reloc): Likewise.
	(ppc64_elf_check_relocs): Likewise.
	(ppc64_elf_relocate_section): Likewise.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Likewise.
	* reloc.c (BFD_RELOC_PPC_REL16DX_HA): New.

elfcpp/
	* powerpc.h (R_POWERPC_REL16DX_HA): Define.

gas/
	* doc/as.texinfo (Target PowerPC): Document -mpower9 and -mpwr9.
	* doc/c-ppc.texi (PowerPC-Opts):  Likewise.
	* config/tc-ppc.c (md_show_usage): Likewise.
	(md_assemble): Handle BFD_RELOC_PPC_REL16DX_HA.
	(md_apply_fix): Likewise.
	(ppc_handle_align): Handle power9's group ending nop.

gas/testsuite/
	* gas/ppc/altivec3.s: New test.
	* gas/ppc/altivec3.d: Likewise.
	* gas/ppc/vsx3.s: Likewise.
	* gas/ppc/vsx3.d: Likewise.
	* gas/ppc/power9.s: Likewise.
	* gas/ppc/power9.d: Likewise.
	* gas/ppc/ppc.exp: Run them.
	* gas/ppc/power8.s <lxvx, lxvd2x, stxvx, stxvd2x>: Add new tests.
	* gas/ppc/power8.d: Likewise.
	* gas/ppc/vsx.s: <lxvx, stxvx>: Rename invalid mnemonics ...
	<lxvd2x, stxvd2x>: ...to this.
	* gas/ppc/vsx.d: Likewise.

gold/
	* gold/powerpc.cc (Powerpc_relocate_functions::addr16_dq): New function.
	(Powerpc_relocate_functions::addr16dx_ha): Likewise.
	(Target_powerpc::Scan::local): Handle R_POWERPC_REL16DX_HA.
	(Target_powerpc::Scan::global): Likewise.
	(Target_powerpc::Relocate::relocate): Likewise.

ld/testsuite/
	* ld-powerpc/addpcis.d: New test.
	* ld-powerpc/addpcis.s: New test.
	* ld-powerpc/powerpc.exp: Run it.

2 files changed, 73 insertions, 5 deletions

diff --git a/gold/ChangeLog b/gold/ChangeLog
index a08b425..2b96de5 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,12 @@
+2015-11-11  Alan Modra  <amodra@gmail.com>
+	    Peter Bergner <bergner@vnet.ibm.com>
+
+	* gold/powerpc.cc (Powerpc_relocate_functions::addr16_dq): New function.
+	(Powerpc_relocate_functions::addr16dx_ha): Likewise.
+	(Target_powerpc::Scan::local): Handle R_POWERPC_REL16DX_HA.
+	(Target_powerpc::Scan::global): Likewise.
+	(Target_powerpc::Relocate::relocate): Likewise.
+
 2015-11-09  Vladimir Radosavljevic <Vladimir.Radosavljevic@imgtec.com>
 
 	* layout.h (Layout::is_debug_info_section): Recognize .pdr debug
diff --git a/gold/powerpc.cc b/gold/powerpc.cc
index e991371..3a013ef 100644
--- a/gold/powerpc.cc
+++ b/gold/powerpc.cc
@@ -1520,6 +1520,7 @@ public:
 private:
   typedef Powerpc_relocate_functions<size, big_endian> This;
   typedef typename elfcpp::Elf_types<size>::Elf_Addr Address;
+  typedef typename elfcpp::Elf_types<size>::Elf_Swxword SignedAddress;
 
   template<int valsize>
   static inline bool
@@ -1680,6 +1681,16 @@ public:
     return stat;
   }
 
+  // R_POWERPC_ADDR16_DQ: (Symbol + Addend) & 0xfff0
+  static inline Status
+  addr16_dq(unsigned char* view, Address value, Overflow_check overflow)
+  {
+    Status stat = This::template rela<16,16>(view, 0, 0xfff0, value, overflow);
+    if ((value & 15) != 0)
+      stat = STATUS_OVERFLOW;
+    return stat;
+  }
+
   // R_POWERPC_ADDR16_HI: ((Symbol + Addend) >> 16) & 0xffff
   static inline void
   addr16_hi(unsigned char* view, Address value)
@@ -1719,6 +1730,20 @@ public:
       stat = STATUS_OVERFLOW;
     return stat;
   }
+
+  // R_POWERPC_REL16DX_HA
+  static inline Status
+  addr16dx_ha(unsigned char *view, Address value, Overflow_check overflow)
+  {
+    typedef typename elfcpp::Swap<32, big_endian>::Valtype Valtype;
+    Valtype* wv = reinterpret_cast<Valtype*>(view);
+    Valtype val = elfcpp::Swap<32, big_endian>::readval(wv);
+    value += 0x8000;
+    value = static_cast<SignedAddress>(value) >> 16;
+    val |= (value & 0xffc1) | ((value & 0x3e) << 15);
+    elfcpp::Swap<32, big_endian>::writeval(wv, val);
+    return overflowed<16>(value, overflow);
+  }
 };
 
 // Set ABI version for input and output.
@@ -5689,6 +5714,7 @@ Target_powerpc<size, big_endian>::Scan::local(
     case elfcpp::R_POWERPC_REL16_LO:
     case elfcpp::R_POWERPC_REL16_HI:
     case elfcpp::R_POWERPC_REL16_HA:
+    case elfcpp::R_POWERPC_REL16DX_HA:
     case elfcpp::R_POWERPC_SECTOFF:
     case elfcpp::R_POWERPC_SECTOFF_LO:
     case elfcpp::R_POWERPC_SECTOFF_HI:
@@ -6138,6 +6164,7 @@ Target_powerpc<size, big_endian>::Scan::global(
     case elfcpp::R_POWERPC_REL16_LO:
     case elfcpp::R_POWERPC_REL16_HI:
     case elfcpp::R_POWERPC_REL16_HA:
+    case elfcpp::R_POWERPC_REL16DX_HA:
     case elfcpp::R_POWERPC_SECTOFF:
     case elfcpp::R_POWERPC_SECTOFF_LO:
     case elfcpp::R_POWERPC_SECTOFF_HI:
@@ -7441,6 +7468,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
     case elfcpp::R_POWERPC_REL16_LO:
     case elfcpp::R_POWERPC_REL16_HI:
     case elfcpp::R_POWERPC_REL16_HA:
+    case elfcpp::R_POWERPC_REL16DX_HA:
     case elfcpp::R_POWERPC_REL14:
     case elfcpp::R_POWERPC_REL14_BRTAKEN:
     case elfcpp::R_POWERPC_REL14_BRNTAKEN:
@@ -7639,6 +7667,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
       break;
 
     case elfcpp::R_POWERPC_REL32:
+    case elfcpp::R_POWERPC_REL16DX_HA:
       if (size == 64)
 	overflow = Reloc::CHECK_SIGNED;
       break;
@@ -7719,11 +7748,13 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
       break;
     }
 
+  Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
+  Insn insn = 0;
+
   if (overflow == Reloc::CHECK_LOW_INSN
       || overflow == Reloc::CHECK_HIGH_INSN)
     {
-      Insn* iview = reinterpret_cast<Insn*>(view - 2 * big_endian);
-      Insn insn = elfcpp::Swap<32, big_endian>::readval(iview);
+      insn = elfcpp::Swap<32, big_endian>::readval(iview);
 
       if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */)
 	overflow = Reloc::CHECK_BITFIELD;
@@ -7739,6 +7770,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
 	overflow = Reloc::CHECK_SIGNED;
     }
 
+  bool maybe_dq_reloc = false;
   typename Powerpc_relocate_functions<size, big_endian>::Status status
     = Powerpc_relocate_functions<size, big_endian>::STATUS_OK;
   switch (r_type)
@@ -7791,7 +7823,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
       if (size == 64)
 	{
 	  // On ppc64 these are all ds form
-	  status = Reloc::addr16_ds(view, value, overflow);
+	  maybe_dq_reloc = true;
 	  break;
 	}
     case elfcpp::R_POWERPC_ADDR16:
@@ -7812,7 +7844,10 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
     case elfcpp::R_POWERPC_DTPREL16_LO:
     case elfcpp::R_POWERPC_GOT_TLSGD16_LO:
     case elfcpp::R_POWERPC_GOT_TLSLD16_LO:
-      status = Reloc::addr16(view, value, overflow);
+      if (size == 64)
+	status = Reloc::addr16(view, value, overflow);
+      else
+	maybe_dq_reloc = true;
       break;
 
     case elfcpp::R_POWERPC_UADDR16:
@@ -7859,6 +7894,10 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
       Reloc::addr16_ha(view, value);
       break;
 
+    case elfcpp::R_POWERPC_REL16DX_HA:
+      status = Reloc::addr16dx_ha(view, value, overflow);
+      break;
+
     case elfcpp::R_PPC64_DTPREL16_HIGHER:
       if (size == 32)
 	// R_PPC_EMB_NADDR16_LO
@@ -7913,7 +7952,7 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
     case elfcpp::R_PPC64_GOT16_LO_DS:
     case elfcpp::R_PPC64_SECTOFF_DS:
     case elfcpp::R_PPC64_SECTOFF_LO_DS:
-      status = Reloc::addr16_ds(view, value, overflow);
+      maybe_dq_reloc = true;
       break;
 
     case elfcpp::R_POWERPC_ADDR14:
@@ -7978,6 +8017,26 @@ Target_powerpc<size, big_endian>::Relocate::relocate(
 			     r_type);
       break;
     }
+
+  if (maybe_dq_reloc)
+    {
+      if (insn == 0)
+	insn = elfcpp::Swap<32, big_endian>::readval(iview);
+
+      if ((insn & (0x3f << 26)) == 56u << 26 /* lq */
+	  || ((insn & (0x3f << 26)) == (61u << 26) /* lxv, stxv */
+	      && (insn & 3) == 1))
+	status = Reloc::addr16_dq(view, value, overflow);
+      else if (size == 64
+	       || (insn & (0x3f << 26)) == 58u << 26 /* ld,ldu,lwa */
+	       || (insn & (0x3f << 26)) == 62u << 26 /* std,stdu,stq */
+	       || (insn & (0x3f << 26)) == 57u << 26 /* lfdp */
+	       || (insn & (0x3f << 26)) == 61u << 26 /* stfdp */)
+	status = Reloc::addr16_ds(view, value, overflow);
+      else
+	status = Reloc::addr16(view, value, overflow);
+    }
+
   if (status != Powerpc_relocate_functions<size, big_endian>::STATUS_OK
       && (has_stub_value
 	  || !(gsym != NULL