test/MC/AArch64/basic-pic.s

   1 // RUN: llvm-mc -triple=aarch64-none-linux-gnu -filetype=obj %s -o -| llvm-objdump -r - | FileCheck %s
   2
   3 // CHECK: RELOCATION RECORDS FOR [.rela.text]
   4
   5         .file   "/home/espindola/llvm/llvm/test/CodeGen/AArch64/basic-pic.ll"
   6         .text
   7         .globl  get_globalvar
   8         .type   get_globalvar,@function
   9 get_globalvar:                          // @get_globalvar
  10         .cfi_startproc
  11 // BB#0:
  12         adrp    x0, :got:var
  13         ldr     x0, [x0, #:got_lo12:var]
  14         ldr      w0, [x0]
  15         ret
  16 .Ltmp0:
  17         .size   get_globalvar, .Ltmp0-get_globalvar
  18         .cfi_endproc
  19
  20 // CHECK: R_AARCH64_ADR_GOT_PAGE var
  21 // CHECK: R_AARCH64_LD64_GOT_LO12_NC var
  22
  23         .globl  get_globalvaraddr
  24         .type   get_globalvaraddr,@function
  25 get_globalvaraddr:                      // @get_globalvaraddr
  26         .cfi_startproc
  27 // BB#0:
  28         adrp    x0, :got:var
  29         ldr     x0, [x0, #:got_lo12:var]
  30         ret
  31 .Ltmp1:
  32         .size   get_globalvaraddr, .Ltmp1-get_globalvaraddr
  33         .cfi_endproc
  34 // CHECK: R_AARCH64_ADR_GOT_PAGE var
  35 // CHECK: R_AARCH64_LD64_GOT_LO12_NC var
  36
  37         .globl  get_hiddenvar
  38         .type   get_hiddenvar,@function
  39 get_hiddenvar:                          // @get_hiddenvar
  40         .cfi_startproc
  41 // BB#0:
  42         adrp    x0, hiddenvar
  43         ldr     w0, [x0, #:lo12:hiddenvar]
  44         ret
  45 .Ltmp2:
  46         .size   get_hiddenvar, .Ltmp2-get_hiddenvar
  47         .cfi_endproc
  48 // CHECK: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
  49 // CHECK: R_AARCH64_LDST32_ABS_LO12_NC hiddenvar
  50
  51         .globl  get_hiddenvaraddr
  52         .type   get_hiddenvaraddr,@function
  53 get_hiddenvaraddr:                      // @get_hiddenvaraddr
  54         .cfi_startproc
  55 // BB#0:
  56         adrp    x0, hiddenvar
  57         add     x0, x0, #:lo12:hiddenvar
  58         ret
  59 .Ltmp3:
  60         .size   get_hiddenvaraddr, .Ltmp3-get_hiddenvaraddr
  61         .cfi_endproc
  62 // CHECK: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
  63 // CHECK: R_AARCH64_ADD_ABS_LO12_NC hiddenvar
  64
  65         .globl  get_func
  66         .type   get_func,@function
  67 get_func:                               // @get_func
  68         .cfi_startproc
  69 // BB#0:
  70         adrp    x0, :got:get_func
  71         ldr     x0, [x0, #:got_lo12:get_func]
  72         ret
  73 .Ltmp4:
  74         .size   get_func, .Ltmp4-get_func
  75         .cfi_endproc
  76
  77 // Particularly important that the ADRP gets a relocation, LLVM tends to think
  78 // it can relax it because it knows where get_func is. It can't!
  79 // CHECK: R_AARCH64_ADR_GOT_PAGE get_func
  80 // CHECK: R_AARCH64_LD64_GOT_LO12_NC get_func
  81
  82         .type   var,@object             // @var
  83         .bss
  84         .globl  var
  85         .align  2
  86 var:
  87         .word   0                       // 0x0
  88         .size   var, 4
  89
  90         .hidden hiddenvar               // @hiddenvar
  91         .type   hiddenvar,@object
  92         .globl  hiddenvar
  93         .align  2
  94 hiddenvar:
  95         .word   0                       // 0x0
  96         .size   hiddenvar, 4
  97
  98