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https://sourceware.org/git/binutils-gdb.git
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066f4018ae
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.
188 lines
3.1 KiB
ArmAsm
188 lines
3.1 KiB
ArmAsm
.section .toc,"aw"
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x4t:
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.quad x4
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x5t:
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.quad x5
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.section .sdata,"aw"
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.p2align 4
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x1:
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.quad 1
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x2:
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.quad 2
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x3:
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.quad 3
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x4:
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.quad 4
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x5:
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.quad 5
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x6:
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.quad 6
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.globl _start
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.text
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_start:
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# no need for got entry, optimise to nop,addi
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addis 9,2,x1@got@ha
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ld 9,x1@got@l(9)
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# must keep got entry, optimise to nop,addi,ld
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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ld 6,0(5)
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# no need for toc entry, optimise to nop,addi
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addis 9,2,x4t@toc@ha
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ld 9,x4t@toc@l(9)
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# must keep toc entry, optimise to nop,addi,ld
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# if we had a reloc tying the ld to x5/x5t then we could throw away
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# the toc entry and optimise to nop,nop,addi
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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ld 6,0(5)
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# keep toc entry due to other accesses to x5t, optimise to nop,ld
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addis 9,2,x5t@toc@ha
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ld 9,x5t@toc@l(9)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lwz 6,0(5)
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addis 9,2,x1@toc@ha
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lwz 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lwz 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lwa 6,0(5)
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addis 9,2,x1@toc@ha
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lwa 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lwa 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lhz 6,0(5)
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addis 9,2,x1@toc@ha
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lhz 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lhz 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lha 6,0(5)
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addis 9,2,x1@toc@ha
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lha 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lha 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lbz 6,0(5)
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addis 9,2,x1@toc@ha
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lbz 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lbz 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lfs 6,0(5)
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addis 9,2,x1@toc@ha
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lfs 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lfs 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lfd 6,0(5)
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addis 9,2,x1@toc@ha
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lfd 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lfd 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lxv 6,0(5)
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addis 9,2,x1@toc@ha
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lxv 9,x1@toc@l(9)
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addis 4,2,x1@toc@ha
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addi 5,4,x1@toc@l
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lxv 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lxsd 6,0(5)
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addis 9,2,x1@toc@ha
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lxsd 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lxsd 6,0(5)
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addis 4,2,x2@got@ha
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addi 5,4,x2@got@l
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lxssp 6,0(5)
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addis 9,2,x1@toc@ha
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lxssp 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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lxssp 6,0(5)
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addis 9,2,x1@toc@ha
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std 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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std 6,0(5)
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addis 9,2,x1@toc@ha
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stw 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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stw 6,0(5)
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addis 9,2,x1@toc@ha
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sth 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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sth 6,0(5)
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addis 9,2,x1@toc@ha
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stb 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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stb 6,0(5)
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addis 9,2,x1@toc@ha
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stfs 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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stfs 6,0(5)
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addis 9,2,x1@toc@ha
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stfd 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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stfd 6,0(5)
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addis 9,2,x1@toc@ha
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stxv 9,x1@toc@l(9)
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addis 4,2,x1@toc@ha
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addi 5,4,x1@toc@l
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stxv 6,0(5)
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addis 9,2,x1@toc@ha
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stxsd 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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stxsd 6,0(5)
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addis 9,2,x1@toc@ha
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stxssp 9,x1@toc@l(9)
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addis 4,2,x5t@toc@ha
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addi 5,4,x5t@toc@l
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stxssp 6,0(5)
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