FreeChainXenon/binutils-gdb
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Author SHA1 Message Date
Alan Modra
066f4018ae 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.
 2019-04-30 22:09:54 +09:30
Alan Modra
39eeab2534 PowerPC64 toc optimisation for power9 
Recognize power9 and a few other insns from older machines.  Fixes
linker complaints like "toc optimization is not supported for
0xf4090002 instruction".  0xf4090002 is stxsd v0,0(r9)

bfd/
	* elf64-ppc.c (ok_lo_toc_insn): Add r_type param.  Recognize
	lq,lfq,lxv,lxsd,lxssp,lfdp,stq,stfq,stxv,stxsd,stxssp,stfdp.
	Don't match lmd and stmd.
ld/
	* testsuite/ld-powerpc/tocopt7.s,
	* testsuite/ld-powerpc/tocopt7.out,
	* testsuite/ld-powerpc/tocopt7.d: New test.
	* testsuite/ld-powerpc/tocopt8.s,
	* testsuite/ld-powerpc/tocopt8.d: New test.
	* testsuite/ld-powerpc/powerpc.exp: Run them.
 2016-12-06 18:25:14 +10:30