llvm/test/MC/AArch64/arm64-leaf-compact-unwind.s

   1 // RUN: llvm-mc -triple=arm64-apple-ios -filetype=obj -emit-compact-unwind-non-canonical=true < %s | \
   2 // RUN: llvm-objdump --macho --unwind-info - | \
   3 // RUN: FileCheck %s
   4 //
   5 // rdar://13070556
   6
   7 // CHECK:      Contents of __compact_unwind section:
   8 // CHECK-NEXT:   Entry at offset 0x0:
   9 // CHECK-NEXT:     start:                0x0 ltmp0
  10 // CHECK-NEXT:     length:               0x8
  11 // CHECK-NEXT:     compact encoding:     0x02000000
  12 // CHECK-NEXT:   Entry at offset 0x20:
  13 // CHECK-NEXT:     start:                0x8 _foo2
  14 // CHECK-NEXT:     length:               0x40
  15 // CHECK-NEXT:     compact encoding:     0x02009000
  16 // CHECK-NEXT:   Entry at offset 0x40:
  17 // CHECK-NEXT:     start:                0x48 _foo3
  18 // CHECK-NEXT:     length:               0xd4
  19 // CHECK-NEXT:     compact encoding:     0x0200400f
  20 // CHECK-NEXT:   Entry at offset 0x60:
  21 // CHECK-NEXT:     start:                0x11c _foo4
  22 // CHECK-NEXT:     length:               0x54
  23 // CHECK-NEXT:     compact encoding:     0x02021010
  24
  25         .section        __TEXT,__text,regular,pure_instructions
  26         .globl  _foo1
  27         .align  2
  28 _foo1:                                  ; @foo1
  29         .cfi_startproc
  30 ; %bb.0:                                ; %entry
  31         add     w0, w0, #42             ; =#42
  32         ret
  33         .cfi_endproc
  34
  35         .globl  _foo2
  36         .align  2
  37 _foo2:                                  ; @foo2
  38         .cfi_startproc
  39 ; %bb.0:                                ; %entry
  40         sub     sp, sp, #144            ; =#144
  41 Ltmp2:
  42         .cfi_def_cfa_offset 144
  43         mov     x9, xzr
  44         mov     x8, sp
  45 LBB1_1:                                 ; %for.body
  46                                         ; =>This Inner Loop Header: Depth=1
  47         str     w9, [x8, x9, lsl #2]
  48         add     x9, x9, #1              ; =#1
  49         cmp     w9, #36                 ; =#36
  50         b.ne    LBB1_1
  51 ; %bb.2:
  52         mov     x9, xzr
  53         mov     w0, wzr
  54 LBB1_3:                                 ; %for.body4
  55                                         ; =>This Inner Loop Header: Depth=1
  56         ldr     w10, [x8, x9]
  57         add     x9, x9, #4              ; =#4
  58         cmp     w9, #144                ; =#144
  59         add     w0, w10, w0
  60         b.ne    LBB1_3
  61 ; %bb.4:                                ; %for.end9
  62         add     sp, sp, #144            ; =#144
  63         ret
  64         .cfi_endproc
  65
  66         .globl  _foo3
  67         .align  2
  68 _foo3:                                  ; @foo3
  69         .cfi_startproc
  70 ; %bb.0:                                ; %entry
  71         stp     x26, x25, [sp, #-64]!
  72         stp     x24, x23, [sp, #16]
  73         stp     x22, x21, [sp, #32]
  74         stp     x20, x19, [sp, #48]
  75 Ltmp3:
  76         .cfi_def_cfa_offset 64
  77 Ltmp4:
  78         .cfi_offset w19, -16
  79 Ltmp5:
  80         .cfi_offset w20, -24
  81 Ltmp6:
  82         .cfi_offset w21, -32
  83 Ltmp7:
  84         .cfi_offset w22, -40
  85 Ltmp8:
  86         .cfi_offset w23, -48
  87 Ltmp9:
  88         .cfi_offset w24, -56
  89 Ltmp10:
  90         .cfi_offset w25, -64
  91 Ltmp11:
  92         .cfi_offset w26, -72
  93 Lloh0:
  94         adrp    x8, _bar@GOTPAGE
  95 Lloh1:
  96         ldr     x8, [x8, _bar@GOTPAGEOFF]
  97         ldr     w9, [x8]
  98         ldr     w10, [x8]
  99         ldr     w11, [x8]
 100         ldr     w12, [x8]
 101         ldr     w13, [x8]
 102         ldr     w14, [x8]
 103         ldr     w15, [x8]
 104         ldr     w16, [x8]
 105         ldr     w17, [x8]
 106         ldr     w0, [x8]
 107         ldr     w19, [x8]
 108         ldr     w20, [x8]
 109         ldr     w21, [x8]
 110         ldr     w22, [x8]
 111         ldr     w23, [x8]
 112         ldr     w24, [x8]
 113         ldr     w25, [x8]
 114         ldr     w8, [x8]
 115         add     w9, w10, w9
 116         add     w9, w9, w11
 117         add     w9, w9, w12
 118         add     w9, w9, w13
 119         add     w9, w9, w14
 120         add     w9, w9, w15
 121         add     w9, w9, w16
 122         add     w9, w9, w17
 123         add     w9, w9, w0
 124         add     w9, w9, w19
 125         add     w9, w9, w20
 126         add     w9, w9, w21
 127         add     w9, w9, w22
 128         add     w9, w9, w23
 129         add     w9, w9, w24
 130         add     w9, w9, w25
 131         sub     w8, w8, w9
 132         sub     w8, w8, w7, lsl #1
 133         sub     w8, w8, w6, lsl #1
 134         sub     w8, w8, w5, lsl #1
 135         sub     w8, w8, w4, lsl #1
 136         sub     w8, w8, w3, lsl #1
 137         sub     w8, w8, w2, lsl #1
 138         sub     w0, w8, w1, lsl #1
 139         ldp     x20, x19, [sp, #48]
 140         ldp     x22, x21, [sp, #32]
 141         ldp     x24, x23, [sp, #16]
 142         ldp     x26, x25, [sp], #64
 143         ret
 144         .loh AdrpLdrGot Lloh0, Lloh1
 145         .cfi_endproc
 146
 147         .globl  _foo4
 148         .align  2
 149 _foo4:                                  ; @foo4
 150         .cfi_startproc
 151 ; %bb.0:                                ; %entry
 152         stp     x28, x27, [sp, #-16]!
 153         sub     sp, sp, #512            ; =#512
 154 Ltmp12:
 155         .cfi_def_cfa_offset 528
 156 Ltmp13:
 157         .cfi_offset w27, -16
 158 Ltmp14:
 159         .cfi_offset w28, -24
 160                                         ; kill: def W0 killed W0 def X0
 161         mov     x9, xzr
 162         ubfx    x10, x0, #0, #32
 163         mov     x8, sp
 164 LBB3_1:                                 ; %for.body
 165                                         ; =>This Inner Loop Header: Depth=1
 166         add     w11, w10, w9
 167         str     w11, [x8, x9, lsl #2]
 168         add     x9, x9, #1              ; =#1
 169         cmp     w9, #128                ; =#128
 170         b.ne    LBB3_1
 171 ; %bb.2:                                ; %for.cond2.preheader
 172         mov     x9, xzr
 173         mov     w0, wzr
 174         add     x8, x8, w5, sxtw #2
 175 LBB3_3:                                 ; %for.body4
 176                                         ; =>This Inner Loop Header: Depth=1
 177         ldr     w10, [x8, x9]
 178         add     x9, x9, #4              ; =#4
 179         cmp     w9, #512                ; =#512
 180         add     w0, w10, w0
 181         b.ne    LBB3_3
 182 ; %bb.4:                                ; %for.end11
 183         add     sp, sp, #512            ; =#512
 184         ldp     x28, x27, [sp], #16
 185         ret
 186         .cfi_endproc
 187
 188         .comm   _bar,4,2                ; @bar
 189
 190 .subsections_via_symbols