test/MC/MachO/relax-recompute-align.s

   1 // RUN: llvm-mc -triple i386-apple-darwin9 %s -filetype=obj -o - | llvm-readobj -S | FileCheck %s
   2
   3 // FIXME: This is a horrible way of checking the output, we need an llvm-mc
   4 // based 'otool'.
   5
   6 // This is a case where llvm-mc computes a better layout than Darwin 'as'. This
   7 // issue is that after the first jmp slides, the .align size must be
   8 // recomputed -- otherwise the second jump will appear to be out-of-range for a
   9 // 1-byte jump.
  10
  11 L0:
  12         .space 0x8a, 0x90
  13         jmp     L0
  14         .space (0xb3 - 0x8f), 0x90
  15         jle     L2
  16         .space (0xcd - 0xb5), 0x90
  17         .align  4, 0x90
  18 L1:
  19         .space (0x130 - 0xd0),0x90
  20         jl      L1
  21 L2:
  22
  23 .zerofill __DATA,__bss,_sym,4,2
  24
  25 // CHECK: Section {
  26 // CHECK-NEXT:   Index: 0
  27 // CHECK-NEXT:   Name: __text (5F 5F 74 65 78 74 00 00 00 00 00 00 00 00 00 00)
  28 // CHECK-NEXT:   Segment: __TEXT (5F 5F 54 45 58 54 00 00 00 00 00 00 00 00 00 00)
  29 // CHECK-NEXT:   Address: 0x0
  30 // CHECK-NEXT:   Size: 0x132
  31 // CHECK-NEXT:   Offset: 340
  32 // CHECK-NEXT:   Alignment: 4
  33 // CHECK-NEXT:   RelocationOffset: 0x0
  34 // CHECK-NEXT:   RelocationCount: 0
  35 // CHECK-NEXT:   Type: Regular (0x0)
  36 // CHECK-NEXT:   Attributes [ (0x800004)
  37 // CHECK-NEXT:     PureInstructions (0x800000)
  38 // CHECK-NEXT:     SomeInstructions (0x4)
  39 // CHECK-NEXT:   ]
  40 // CHECK-NEXT:   Reserved1: 0x0
  41 // CHECK-NEXT:   Reserved2: 0x0
  42 // CHECK-NEXT: }