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 // RUN: llvm-mc -triple=arm64-none-linux-gnu -filetype=obj %s -o -| llvm-objdump -r - | FileCheck %s
   3
   4 // CHECK: RELOCATION RECORDS FOR [.rela.text]
   5
   6         .file   "/home/espindola/llvm/llvm/test/CodeGen/AArch64/basic-pic.ll"
   7         .text
   8         .globl  get_globalvar
   9         .type   get_globalvar,@function
  10 get_globalvar:                          // @get_globalvar
  11         .cfi_startproc
  12 // BB#0:
  13         adrp    x0, :got:var
  14         ldr     x0, [x0, #:got_lo12:var]
  15         ldr      w0, [x0]
  16         ret
  17 .Ltmp0:
  18         .size   get_globalvar, .Ltmp0-get_globalvar
  19         .cfi_endproc
  20
  21 // CHECK: R_AARCH64_ADR_GOT_PAGE var
  22 // CHECK: R_AARCH64_LD64_GOT_LO12_NC var
  23
  24         .globl  get_globalvaraddr
  25         .type   get_globalvaraddr,@function
  26 get_globalvaraddr:                      // @get_globalvaraddr
  27         .cfi_startproc
  28 // BB#0:
  29         adrp    x0, :got:var
  30         ldr     x0, [x0, #:got_lo12:var]
  31         ret
  32 .Ltmp1:
  33         .size   get_globalvaraddr, .Ltmp1-get_globalvaraddr
  34         .cfi_endproc
  35 // CHECK: R_AARCH64_ADR_GOT_PAGE var
  36 // CHECK: R_AARCH64_LD64_GOT_LO12_NC var
  37
  38         .globl  get_hiddenvar
  39         .type   get_hiddenvar,@function
  40 get_hiddenvar:                          // @get_hiddenvar
  41         .cfi_startproc
  42 // BB#0:
  43         adrp    x0, hiddenvar
  44         ldr     w0, [x0, #:lo12:hiddenvar]
  45         ret
  46 .Ltmp2:
  47         .size   get_hiddenvar, .Ltmp2-get_hiddenvar
  48         .cfi_endproc
  49 // CHECK: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
  50 // CHECK: R_AARCH64_LDST32_ABS_LO12_NC hiddenvar
  51
  52         .globl  get_hiddenvaraddr
  53         .type   get_hiddenvaraddr,@function
  54 get_hiddenvaraddr:                      // @get_hiddenvaraddr
  55         .cfi_startproc
  56 // BB#0:
  57         adrp    x0, hiddenvar
  58         add     x0, x0, #:lo12:hiddenvar
  59         ret
  60 .Ltmp3:
  61         .size   get_hiddenvaraddr, .Ltmp3-get_hiddenvaraddr
  62         .cfi_endproc
  63 // CHECK: R_AARCH64_ADR_PREL_PG_HI21 hiddenvar
  64 // CHECK: R_AARCH64_ADD_ABS_LO12_NC hiddenvar
  65
  66         .globl  get_func
  67         .type   get_func,@function
  68 get_func:                               // @get_func
  69         .cfi_startproc
  70 // BB#0:
  71         adrp    x0, :got:get_func
  72         ldr     x0, [x0, #:got_lo12:get_func]
  73         ret
  74 .Ltmp4:
  75         .size   get_func, .Ltmp4-get_func
  76         .cfi_endproc
  77
  78 // Particularly important that the ADRP gets a relocation, LLVM tends to think
  79 // it can relax it because it knows where get_func is. It can't!
  80 // CHECK: R_AARCH64_ADR_GOT_PAGE get_func
  81 // CHECK: R_AARCH64_LD64_GOT_LO12_NC get_func
  82
  83         .type   var,@object             // @var
  84         .bss
  85         .globl  var
  86         .align  2
  87 var:
  88         .word   0                       // 0x0
  89         .size   var, 4
  90
  91         .hidden hiddenvar               // @hiddenvar
  92         .type   hiddenvar,@object
  93         .globl  hiddenvar
  94         .align  2
  95 hiddenvar:
  96         .word   0                       // 0x0
  97         .size   hiddenvar, 4
  98
  99