From: Alan Modra <amodra@gmail.com>
Date: Tue, 30 Apr 2019 07:01:01 +0000 (+0930)
Subject: PowerPC64 GOT indirect to GOT relative optimisation
X-Git-Tag: binutils-2_33~1413
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=066f4018ae7822d81cb6747fd9494e5dd63bfecf;p=external%2Fbinutils.git

PowerPC64 GOT indirect to GOT relative optimisation

This implements an optimisation that converts sequences like
  addis r9,r2,sym@got@ha
  ld r3,sym@got@l(r9)
to
  addis r9,r2,sym@toc@ha
  addi r3,r9,sym@toc@l
when "sym" is locally defined and can't be overridden.

bfd/
	* elf64-ppc.c (struct ppc64_elf_obj_tdata): Add has_gotrel.
	(struct _ppc64_elf_section_data): Likewise.
	(ppc64_elf_check_relocs): Set above fields.
	(ppc64_elf_edit_toc): Add a pass over GOT relocs.
	(ppc64_elf_relocate_section): Edit GOT indirect to GOT relative
	when possible.
ld/
	* testsuite/ld-powerpc/elfv2exe.d: Update.
	* testsuite/ld-powerpc/elfv2so.d: Update.
	* testsuite/ld-powerpc/tocopt.d: Update.
	* testsuite/ld-powerpc/tocopt.s: Update.
	* testsuite/ld-powerpc/tocopt5.d: Update.
	* testsuite/ld-powerpc/tocopt5.s: Update.
	* testsuite/ld-powerpc/tocopt7.d: Update.
	* testsuite/ld-powerpc/tocopt7.s: Update.
	* testsuite/ld-powerpc/tocopt8.d: Update.
	* testsuite/ld-powerpc/tocopt8.s: Update.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index b39197d..0b68dc0 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,12 @@
+2019-04-30  Alan Modra  <amodra@gmail.com>
+
+	* elf64-ppc.c (struct ppc64_elf_obj_tdata): Add has_gotrel.
+	(struct _ppc64_elf_section_data): Likewise.
+	(ppc64_elf_check_relocs): Set above fields.
+	(ppc64_elf_edit_toc): Add a pass over GOT relocs.
+	(ppc64_elf_relocate_section): Edit GOT indirect to GOT relative
+	when possible.
+
 2019-04-26  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR ld/24486
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index a795ad1..4eb0153 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -1594,6 +1594,9 @@ struct ppc64_elf_obj_tdata
   /* Set if toc/got ha relocs detected not using r2, or lo reloc
      instruction not one we handle.  */
   unsigned int unexpected_toc_insn : 1;
+
+  /* Set if got relocs that can be optimised are present in this file.  */
+  unsigned int has_gotrel : 1;
 };
 
 #define ppc64_elf_tdata(bfd) \
@@ -1793,6 +1796,9 @@ struct _ppc64_elf_section_data
 
   /* Flag set when PLTCALL relocs are detected.  */
   unsigned int has_pltcall:1;
+
+  /* Flag set when section has GOT relocations that can be optimised.  */
+  unsigned int has_gotrel:1;
 };
 
 #define ppc64_elf_section_data(sec) \
@@ -4383,14 +4389,19 @@ ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
 	  tls_type = TLS_TLS | TLS_DTPREL;
 	dogottls:
 	  sec->has_tls_reloc = 1;
-	  /* Fall through */
+	  goto dogot;
 
-	case R_PPC64_GOT16:
 	case R_PPC64_GOT16_DS:
 	case R_PPC64_GOT16_HA:
+	case R_PPC64_GOT16_LO_DS:
+	  ppc64_elf_tdata (abfd)->has_gotrel = 1;
+	  ppc64_elf_section_data (sec)->has_gotrel = 1;
+	  /* Fall through.  */
+
+	case R_PPC64_GOT16:
 	case R_PPC64_GOT16_HI:
 	case R_PPC64_GOT16_LO:
-	case R_PPC64_GOT16_LO_DS:
+	dogot:
 	  /* This symbol requires a global offset table entry.  */
 	  sec->has_toc_reloc = 1;
 	  if (r_type == R_PPC64_GOT_TLSLD16
@@ -8579,6 +8590,161 @@ ppc64_elf_edit_toc (struct bfd_link_info *info)
       free (skip);
     }
 
+  /* Look for cases where we can change an indirect GOT access to
+     a GOT relative access, possibly reducing the number of GOT
+     entries.  */
+  for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
+    {
+      asection *sec;
+      Elf_Internal_Shdr *symtab_hdr;
+      Elf_Internal_Sym *local_syms;
+      Elf_Internal_Rela *relstart, *rel;
+      bfd_vma got;
+
+      if (!is_ppc64_elf (ibfd))
+	continue;
+
+      if (!ppc64_elf_tdata (ibfd)->has_gotrel)
+	continue;
+
+      sec = ppc64_elf_tdata (ibfd)->got;
+      got = sec->output_section->vma + sec->output_offset + 0x8000;
+
+      local_syms = NULL;
+      symtab_hdr = &elf_symtab_hdr (ibfd);
+
+      for (sec = ibfd->sections; sec != NULL; sec = sec->next)
+	{
+	  if (sec->reloc_count == 0
+	      || !ppc64_elf_section_data (sec)->has_gotrel
+	      || discarded_section (sec))
+	    continue;
+
+	  relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
+						info->keep_memory);
+	  if (relstart == NULL)
+	    {
+	    got_error_ret:
+	      if (local_syms != NULL
+		  && symtab_hdr->contents != (unsigned char *) local_syms)
+		free (local_syms);
+	      if (sec != NULL
+		  && relstart != NULL
+		  && elf_section_data (sec)->relocs != relstart)
+		free (relstart);
+	      return FALSE;
+	    }
+
+	  for (rel = relstart; rel < relstart + sec->reloc_count; ++rel)
+	    {
+	      enum elf_ppc64_reloc_type r_type;
+	      unsigned long r_symndx;
+	      Elf_Internal_Sym *sym;
+	      asection *sym_sec;
+	      struct elf_link_hash_entry *h;
+	      struct got_entry *ent;
+	      bfd_vma val;
+	      unsigned char buf[4];
+	      unsigned int insn;
+
+	      r_type = ELF64_R_TYPE (rel->r_info);
+	      switch (r_type)
+		{
+		default:
+		  continue;
+
+		case R_PPC64_GOT16_DS:
+		case R_PPC64_GOT16_HA:
+		case R_PPC64_GOT16_LO_DS:
+		  break;
+		}
+
+	      r_symndx = ELF64_R_SYM (rel->r_info);
+	      if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms,
+			      r_symndx, ibfd))
+		goto got_error_ret;
+
+	      if (!SYMBOL_REFERENCES_LOCAL (info, h))
+		continue;
+
+	      if (h != NULL)
+		val = h->root.u.def.value;
+	      else
+		val = sym->st_value;
+	      val += rel->r_addend;
+	      val += sym_sec->output_section->vma + sym_sec->output_offset;
+
+	      switch (r_type)
+		{
+		default:
+		  continue;
+
+		case R_PPC64_GOT16_DS:
+		  if (val - got + 0x8000 >= 0x10000)
+		    continue;
+		  if (!bfd_get_section_contents (ibfd, sec, buf,
+						 rel->r_offset & ~3, 4))
+		    goto got_error_ret;
+		  insn = bfd_get_32 (ibfd, buf);
+		  if ((insn & (0x3f << 26 | 0x3)) != 58u << 26 /* ld */)
+		    continue;
+		  break;
+
+		case R_PPC64_GOT16_HA:
+		  if (val - got + 0x80008000ULL >= 0x100000000ULL)
+		    continue;
+
+		  if (!bfd_get_section_contents (ibfd, sec, buf,
+						 rel->r_offset & ~3, 4))
+		    goto got_error_ret;
+		  insn = bfd_get_32 (ibfd, buf);
+		  if (((insn & ((0x3f << 26) | 0x1f << 16))
+		       != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */))
+		    continue;
+		  break;
+
+		case R_PPC64_GOT16_LO_DS:
+		  if (val - got + 0x80008000ULL >= 0x100000000ULL)
+		    continue;
+		  if (!bfd_get_section_contents (ibfd, sec, buf,
+						 rel->r_offset & ~3, 4))
+		    goto got_error_ret;
+		  insn = bfd_get_32 (ibfd, buf);
+		  if ((insn & (0x3f << 26 | 0x3)) != 58u << 26 /* ld */)
+		    continue;
+		  break;
+		}
+
+	      if (h != NULL)
+		ent = h->got.glist;
+	      else
+		{
+		  struct got_entry **local_got_ents = elf_local_got_ents (ibfd);
+		  ent = local_got_ents[r_symndx];
+		}
+	      for (; ent != NULL; ent = ent->next)
+		if (ent->addend == rel->r_addend
+		    && ent->owner == ibfd
+		    && ent->tls_type == 0)
+		  break;
+	      BFD_ASSERT (ent && ent->got.refcount > 0);
+	      ent->got.refcount -= 1;
+	    }
+
+	  if (elf_section_data (sec)->relocs != relstart)
+	    free (relstart);
+	}
+
+      if (local_syms != NULL
+	  && symtab_hdr->contents != (unsigned char *) local_syms)
+	{
+	  if (!info->keep_memory)
+	    free (local_syms);
+	  else
+	    symtab_hdr->contents = (unsigned char *) local_syms;
+	}
+    }
+
   return TRUE;
 }
 
@@ -14397,6 +14563,44 @@ ppc64_elf_relocate_section (bfd *output_bfd,
 	      goto copy_reloc;
 	    }
 	  break;
+
+	case R_PPC64_GOT16_DS:
+	  from = TOCstart + htab->sec_info[input_section->id].toc_off;
+	  if (relocation + addend - from + 0x8000 < 0x10000
+	      && SYMBOL_REFERENCES_LOCAL (info, &h->elf))
+	    {
+	      insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
+	      if ((insn & (0x3f << 26 | 0x3)) == 58u << 26 /* ld */)
+		{
+		  insn += (14u << 26) - (58u << 26);
+		  bfd_put_32 (input_bfd, insn, contents + (rel->r_offset & ~3));
+		  r_type = R_PPC64_TOC16;
+		  rel->r_info = ELF64_R_INFO (r_symndx, r_type);
+		}
+	    }
+	  break;
+
+	case R_PPC64_GOT16_LO_DS:
+	case R_PPC64_GOT16_HA:
+	  from = TOCstart + htab->sec_info[input_section->id].toc_off;
+	  if (relocation + addend - from + 0x80008000ULL < 0x100000000ULL
+	      && SYMBOL_REFERENCES_LOCAL (info, &h->elf))
+	    {
+	      insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3));
+	      if ((insn & (0x3f << 26 | 0x3)) == 58u << 26 /* ld */)
+		{
+		  insn += (14u << 26) - (58u << 26);
+		  bfd_put_32 (input_bfd, insn, contents + (rel->r_offset & ~3));
+		  r_type = R_PPC64_TOC16_LO;
+		  rel->r_info = ELF64_R_INFO (r_symndx, r_type);
+		}
+	      else if ((insn & (0x3f << 26)) == 15u << 26 /* addis */)
+		{
+		  r_type = R_PPC64_TOC16_HA;
+		  rel->r_info = ELF64_R_INFO (r_symndx, r_type);
+		}
+	    }
+	  break;
 	}
 
       /* Set `addend'.  */
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 630e637..40b90fb 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,18 @@
 2019-04-30  Alan Modra  <amodra@gmail.com>
 
+	* testsuite/ld-powerpc/elfv2exe.d: Update.
+	* testsuite/ld-powerpc/elfv2so.d: Update.
+	* testsuite/ld-powerpc/tocopt.d: Update.
+	* testsuite/ld-powerpc/tocopt.s: Update.
+	* testsuite/ld-powerpc/tocopt5.d: Update.
+	* testsuite/ld-powerpc/tocopt5.s: Update.
+	* testsuite/ld-powerpc/tocopt7.d: Update.
+	* testsuite/ld-powerpc/tocopt7.s: Update.
+	* testsuite/ld-powerpc/tocopt8.d: Update.
+	* testsuite/ld-powerpc/tocopt8.s: Update.
+
+2019-04-30  Alan Modra  <amodra@gmail.com>
+
 	* ld.texi (How GNU properties are merged): Avoid pod2man error.
 	Correct example.
 
diff --git a/ld/testsuite/ld-powerpc/elfv2exe.d b/ld/testsuite/ld-powerpc/elfv2exe.d
index a02a3ff..769f846 100644
--- a/ld/testsuite/ld-powerpc/elfv2exe.d
+++ b/ld/testsuite/ld-powerpc/elfv2exe.d
@@ -34,7 +34,7 @@ Disassembly of section \.text:
 .*:	(e8 62 80 08|08 80 62 e8) 	ld      r3,-32760\(r2\)
 .*:	(4b .. .. ..|.. .. .. 4b) 	bl      .*\.plt_branch\.f2>
 .*:	(60 00 00 00|00 00 00 60) 	nop
-.*:	(e8 62 80 10|10 80 62 e8) 	ld      r3,-32752\(r2\)
+.*:	(38 62 80 10|10 80 62 38) 	addi    r3,r2,-32752
 .*:	(48 .. .. ..|.. .. .. 48) 	bl      10008888 <f3>
 .*:	(60 00 00 00|00 00 00 60) 	nop
 .*:	(4b .. .. ..|.. .. .. 4b) 	bl      .*\.plt_branch\.f4>
diff --git a/ld/testsuite/ld-powerpc/elfv2so.d b/ld/testsuite/ld-powerpc/elfv2so.d
index 0853f8a..081eb49 100644
--- a/ld/testsuite/ld-powerpc/elfv2so.d
+++ b/ld/testsuite/ld-powerpc/elfv2so.d
@@ -9,35 +9,35 @@ Disassembly of section \.text:
 
 .* <.*\.plt_call\.f4>:
 .*:	(f8 41 00 18|18 00 41 f8) 	std     r2,24\(r1\)
-.*:	(e9 82 80 40|40 80 82 e9) 	ld      r12,-32704\(r2\)
+.*:	(e9 82 80 38|38 80 82 e9) 	ld      r12,-32712\(r2\)
 .*:	(7d 89 03 a6|a6 03 89 7d) 	mtctr   r12
 .*:	(4e 80 04 20|20 04 80 4e) 	bctr
 	\.\.\.
 
 .* <.*\.plt_call\.f3>:
 .*:	(f8 41 00 18|18 00 41 f8) 	std     r2,24\(r1\)
-.*:	(e9 82 80 30|30 80 82 e9) 	ld      r12,-32720\(r2\)
+.*:	(e9 82 80 28|28 80 82 e9) 	ld      r12,-32728\(r2\)
 .*:	(7d 89 03 a6|a6 03 89 7d) 	mtctr   r12
 .*:	(4e 80 04 20|20 04 80 4e) 	bctr
 	\.\.\.
 
 .* <.*\.plt_call\.f5>:
 .*:	(f8 41 00 18|18 00 41 f8) 	std     r2,24\(r1\)
-.*:	(e9 82 80 28|28 80 82 e9) 	ld      r12,-32728\(r2\)
+.*:	(e9 82 80 20|20 80 82 e9) 	ld      r12,-32736\(r2\)
 .*:	(7d 89 03 a6|a6 03 89 7d) 	mtctr   r12
 .*:	(4e 80 04 20|20 04 80 4e) 	bctr
 	\.\.\.
 
 .* <.*\.plt_call\.f1>:
 .*:	(f8 41 00 18|18 00 41 f8) 	std     r2,24\(r1\)
-.*:	(e9 82 80 48|48 80 82 e9) 	ld      r12,-32696\(r2\)
+.*:	(e9 82 80 40|40 80 82 e9) 	ld      r12,-32704\(r2\)
 .*:	(7d 89 03 a6|a6 03 89 7d) 	mtctr   r12
 .*:	(4e 80 04 20|20 04 80 4e) 	bctr
 	\.\.\.
 
 .* <.*\.plt_call\.f2>:
 .*:	(f8 41 00 18|18 00 41 f8) 	std     r2,24\(r1\)
-.*:	(e9 82 80 38|38 80 82 e9) 	ld      r12,-32712\(r2\)
+.*:	(e9 82 80 30|30 80 82 e9) 	ld      r12,-32720\(r2\)
 .*:	(7d 89 03 a6|a6 03 89 7d) 	mtctr   r12
 .*:	(4e 80 04 20|20 04 80 4e) 	bctr
 	\.\.\.
@@ -52,7 +52,7 @@ Disassembly of section \.text:
 .*:	(e8 62 80 08|08 80 62 e8) 	ld      r3,-32760\(r2\)
 .*:	(4b .. .. ..|.. .. .. 4b) 	bl      .*\.plt_call\.f2>
 .*:	(e8 41 00 18|18 00 41 e8) 	ld      r2,24\(r1\)
-.*:	(e8 62 80 10|10 80 62 e8) 	ld      r3,-32752\(r2\)
+.*:	(38 62 80 48|48 80 62 38) 	addi    r3,r2,-32696
 .*:	(4b .. .. ..|.. .. .. 4b) 	bl      .*\.plt_call\.f3>
 .*:	(e8 41 00 18|18 00 41 e8) 	ld      r2,24\(r1\)
 .*:	(4b .. .. ..|.. .. .. 4b) 	bl      .*\.plt_call\.f4>
diff --git a/ld/testsuite/ld-powerpc/tocopt.d b/ld/testsuite/ld-powerpc/tocopt.d
index 272f470..5980589 100644
--- a/ld/testsuite/ld-powerpc/tocopt.d
+++ b/ld/testsuite/ld-powerpc/tocopt.d
@@ -2,13 +2,13 @@
 .*:     file format .*
 
 Contents of section \.text:
- 100000b0 (3d220000|0000223d) (e9298018|188029e9) (3c820000|0000823c) (38a48020|2080a438)  .*
- 100000c0 (e8c50000|0000c5e8) (3fa00000|0000a03f) (3bbd8028|2880bd3b) (7c62e82a|2ae8627c)  .*
- 100000d0 (3d220000|0000223d) (39298033|33802939) (3c820000|0000823c) (38a48008|0880a438)  .*
+ 100000b0 (3d220000|0000223d) (39298028|28802939) (3c820000|0000823c) (38a48018|1880a438)  .*
+ 100000c0 (e8c50000|0000c5e8) (3fa00000|0000a03f) (3bbd8020|2080bd3b) (7c62e82a|2ae8627c)  .*
+ 100000d0 (3d220000|0000223d) (3929802b|2b802939) (3c820000|0000823c) (38a48008|0880a438)  .*
  100000e0 (e8c50000|0000c5e8) (3fa00000|0000a03f) (3bbd8010|1080bd3b) (7c62e82a|2ae8627c)  .*
 Contents of section \.got:
- 10010100 (00000000|00810110) (10018100|00000000) (00000000|34010110) (10010134|00000000)  .*
- 10010110 (00000000|35010110) (10010135|00000000) (00000000|30010110) (10010130|00000000)  .*
- 10010120 (00000000|31010110) (10010131|00000000) (00000000|32010110) (10010132|00000000)  .*
+ 10010100 (00000000|00810110) (10018100|00000000) (00000000|2c010110) (1001012c|00000000)  .*
+ 10010110 (00000000|2d010110) (1001012d|00000000) (00000000|29010110) (10010129|00000000)  .*
+ 10010120 (00000000|2a010110) (1001012a|00000000) .*
 Contents of section \.sdata:
- 10010130 01020304 0506                        .*
+ 10010128 01020304 0506                        .*
diff --git a/ld/testsuite/ld-powerpc/tocopt.s b/ld/testsuite/ld-powerpc/tocopt.s
index a2447ca..cb5cc3e 100644
--- a/ld/testsuite/ld-powerpc/tocopt.s
+++ b/ld/testsuite/ld-powerpc/tocopt.s
@@ -24,7 +24,8 @@ x6:
  .text
 _start:
 # no need for got entry, optimise to nop,addi
-# note: ld doesn't yet do got optimisation, so we get nop,ld
+# note that due to unexpected toc/got insns the full optimisation is
+# not done.  see tocopt5 for test without unexpected insns.
  addis 9,2,x1@got@ha
  ld 9,x1@got@l(9)
 # must keep got entry, optimise to nop,addi,ld
diff --git a/ld/testsuite/ld-powerpc/tocopt5.d b/ld/testsuite/ld-powerpc/tocopt5.d
index 1c93674..39291d5 100644
--- a/ld/testsuite/ld-powerpc/tocopt5.d
+++ b/ld/testsuite/ld-powerpc/tocopt5.d
@@ -2,12 +2,11 @@
 .*:     file format .*
 
 Contents of section \.text:
- 100000b0 (60000000|00000060) (e9228018|188022e9) (60000000|00000060) (38a28020|2080a238)  .*
- 100000c0 (e8c50000|0000c5e8) (60000000|00000060) (3922802b|2b802239) (60000000|00000060)  .*
+ 100000b0 (60000000|00000060) (39228020|20802239) (60000000|00000060) (38a28018|1880a238)  .*
+ 100000c0 (e8c50000|0000c5e8) (60000000|00000060) (39228023|23802239) (60000000|00000060)  .*
  100000d0 (38a28008|0880a238) (e8c50000|0000c5e8)                    .*
 Contents of section \.got:
- 10010100 (00000000|00810110) (10018100|00000000) (00000000|2c010110) (1001012c|00000000)  .*
- 10010110 (00000000|2d010110) (1001012d|00000000) (00000000|28010110) (10010128|00000000)  .*
- 10010120 (00000000|29010110) (10010129|00000000)                    .*
+ 10010100 (00000000|00810110) (10018100|00000000) (00000000|24010110) (10010124|00000000)  .*
+ 10010110 (00000000|25010110) (10010125|00000000) (00000000|21010110) (10010121|00000000)  .*
 Contents of section \.sdata:
- 10010128 01020304 0506                        .*
+ 10010120 01020304 0506                        .*
diff --git a/ld/testsuite/ld-powerpc/tocopt5.s b/ld/testsuite/ld-powerpc/tocopt5.s
index 67da1a9..8eb0b9f 100644
--- a/ld/testsuite/ld-powerpc/tocopt5.s
+++ b/ld/testsuite/ld-powerpc/tocopt5.s
@@ -24,7 +24,6 @@ x6:
  .text
 _start:
 # no need for got entry, optimise to nop,addi
-# note: ld doesn't yet do got optimisation, so we get nop,ld
  addis 9,2,x1@got@ha
  ld 9,x1@got@l(9)
 # must keep got entry, optimise to nop,addi,ld
diff --git a/ld/testsuite/ld-powerpc/tocopt7.d b/ld/testsuite/ld-powerpc/tocopt7.d
index 7d4638f..baaf200 100644
--- a/ld/testsuite/ld-powerpc/tocopt7.d
+++ b/ld/testsuite/ld-powerpc/tocopt7.d
@@ -2,7 +2,7 @@
 .*:     file format .*
 
 Contents of section \.text:
- 100000b0 (0000223d|3d220000) (288029e9|e9298028) (0000823c|3c820000) (3080a438|38a48030) .*
+ 100000b0 (0000223d|3d220000) (40802939|39298040) (0000823c|3c820000) (3080a438|38a48030) .*
  100000c0 (0000c5e8|e8c50000) (0000823f|3f820000) (29803ce9|e93c8029) (0000223d|3d220000) .*
  100000d0 (108029e9|e9298010) (0000823c|3c820000) (1880a438|38a48018) (0000c5e8|e8c50000) .*
  100000e0 (0000823f|3f820000) (11803ce9|e93c8011) (0000823c|3c820000) (3080a438|38a48030) .*
diff --git a/ld/testsuite/ld-powerpc/tocopt7.s b/ld/testsuite/ld-powerpc/tocopt7.s
index dbd8eb1..e402ee7 100644
--- a/ld/testsuite/ld-powerpc/tocopt7.s
+++ b/ld/testsuite/ld-powerpc/tocopt7.s
@@ -26,7 +26,6 @@ x6:
  .text
 _start:
 # no need for got entry, optimise to nop,addi
-# note: ld doesn't yet do got optimisation, so we get nop,ld
  addis 9,2,x1@got@ha
  ld 9,x1@got@l(9)
 # must keep got entry, optimise to nop,addi,ld
diff --git a/ld/testsuite/ld-powerpc/tocopt8.d b/ld/testsuite/ld-powerpc/tocopt8.d
index c9eff5a..fe5923c 100644
--- a/ld/testsuite/ld-powerpc/tocopt8.d
+++ b/ld/testsuite/ld-powerpc/tocopt8.d
@@ -2,28 +2,28 @@
 .*:     file format .*
 
 Contents of section \.text:
- 100000b0 (00000060|60000000) (108022e9|e9228010) (00000060|60000000) (1880a238|38a28018) .*
+ 100000b0 (00000060|60000000) (20802239|39228020) (00000060|60000000) (1080a238|38a28010) .*
  100000c0 (0000c5e8|e8c50000) (00000060|60000000) (38802239|39228038) (00000060|60000000) .*
  100000d0 (0880a238|38a28008) (0000c5e8|e8c50000) (00000060|60000000) (088022e9|e9228008) .*
- 100000e0 (00000060|60000000) (1880a238|38a28018) (0000c580|80c50000) (00000060|60000000) .*
+ 100000e0 (00000060|60000000) (1080a238|38a28010) (0000c580|80c50000) (00000060|60000000) .*
  100000f0 (20802281|81228020) (00000060|60000000) (0880a238|38a28008) (0000c580|80c50000) .*
- 10000100 (00000060|60000000) (1880a238|38a28018) (0200c5e8|e8c50002) (00000060|60000000) .*
+ 10000100 (00000060|60000000) (1080a238|38a28010) (0200c5e8|e8c50002) (00000060|60000000) .*
  10000110 (228022e9|e9228022) (00000060|60000000) (0880a238|38a28008) (0200c5e8|e8c50002) .*
- 10000120 (00000060|60000000) (1880a238|38a28018) (0000c5a0|a0c50000) (00000060|60000000) .*
+ 10000120 (00000060|60000000) (1080a238|38a28010) (0000c5a0|a0c50000) (00000060|60000000) .*
  10000130 (208022a1|a1228020) (00000060|60000000) (0880a238|38a28008) (0000c5a0|a0c50000) .*
- 10000140 (00000060|60000000) (1880a238|38a28018) (0000c5a8|a8c50000) (00000060|60000000) .*
+ 10000140 (00000060|60000000) (1080a238|38a28010) (0000c5a8|a8c50000) (00000060|60000000) .*
  10000150 (208022a9|a9228020) (00000060|60000000) (0880a238|38a28008) (0000c5a8|a8c50000) .*
- 10000160 (00000060|60000000) (1880a238|38a28018) (0000c588|88c50000) (00000060|60000000) .*
+ 10000160 (00000060|60000000) (1080a238|38a28010) (0000c588|88c50000) (00000060|60000000) .*
  10000170 (20802289|89228020) (00000060|60000000) (0880a238|38a28008) (0000c588|88c50000) .*
- 10000180 (00000060|60000000) (1880a238|38a28018) (0000c5c0|c0c50000) (00000060|60000000) .*
+ 10000180 (00000060|60000000) (1080a238|38a28010) (0000c5c0|c0c50000) (00000060|60000000) .*
  10000190 (208022c1|c1228020) (00000060|60000000) (0880a238|38a28008) (0000c5c0|c0c50000) .*
- 100001a0 (00000060|60000000) (1880a238|38a28018) (0000c5c8|c8c50000) (00000060|60000000) .*
+ 100001a0 (00000060|60000000) (1080a238|38a28010) (0000c5c8|c8c50000) (00000060|60000000) .*
  100001b0 (208022c9|c9228020) (00000060|60000000) (0880a238|38a28008) (0000c5c8|c8c50000) .*
- 100001c0 (00000060|60000000) (1880a238|38a28018) (0100c5f4|f4c50001) (00000060|60000000) .*
+ 100001c0 (00000060|60000000) (1080a238|38a28010) (0100c5f4|f4c50001) (00000060|60000000) .*
  100001d0 (218022f5|f5228021) (00000060|60000000) (2080a238|38a28020) (0100c5f4|f4c50001) .*
- 100001e0 (00000060|60000000) (1880a238|38a28018) (0200c5e4|e4c50002) (00000060|60000000) .*
+ 100001e0 (00000060|60000000) (1080a238|38a28010) (0200c5e4|e4c50002) (00000060|60000000) .*
  100001f0 (228022e5|e5228022) (00000060|60000000) (0880a238|38a28008) (0200c5e4|e4c50002) .*
- 10000200 (00000060|60000000) (1880a238|38a28018) (0300c5e4|e4c50003) (00000060|60000000) .*
+ 10000200 (00000060|60000000) (1080a238|38a28010) (0300c5e4|e4c50003) (00000060|60000000) .*
  10000210 (238022e5|e5228023) (00000060|60000000) (0880a238|38a28008) (0300c5e4|e4c50003) .*
  10000220 (00000060|60000000) (208022f9|f9228020) (00000060|60000000) (0880a238|38a28008) .*
  10000230 (0000c5f8|f8c50000) (00000060|60000000) (20802291|91228020) (00000060|60000000) .*
@@ -39,7 +39,7 @@ Contents of section \.text:
  100002d0 (0300c5f4|f4c50003) .*
 Contents of section \.got:
  10010300 (00830110|00000000) (00000000|10018300) (40030110|00000000) (00000000|10010340) .*
- 10010310 (20030110|00000000) (00000000|10010320) (28030110|00000000) (00000000|10010328) .*
+ 10010310 (28030110|00000000) (00000000|10010328) .*
 Contents of section \.sdata:
  10010320 (01000000|00000000) (00000000|00000001) (02000000|00000000) (00000000|00000002) .*
  10010330 (03000000|00000000) (00000000|00000003) (04000000|00000000) (00000000|00000004) .*
diff --git a/ld/testsuite/ld-powerpc/tocopt8.s b/ld/testsuite/ld-powerpc/tocopt8.s
index 219de5e..1d71b28 100644
--- a/ld/testsuite/ld-powerpc/tocopt8.s
+++ b/ld/testsuite/ld-powerpc/tocopt8.s
@@ -23,7 +23,6 @@ x6:
  .text
 _start:
 # no need for got entry, optimise to nop,addi
-# note: ld doesn't yet do got optimisation, so we get nop,ld
  addis 9,2,x1@got@ha
  ld 9,x1@got@l(9)
 # must keep got entry, optimise to nop,addi,ld