test/MC/ARM/ltorg.s

   1 @ This test has a partner (ltorg-darwin.s) that contains matching
   2 @ tests for the .ltorg on darwin targets. We need separate files
   3 @ because the syntax for switching sections and temporary labels differs
   4 @ between darwin and linux. Any tests added here should have a matching
   5 @ test added there.
   6
   7 @RUN: llvm-mc -triple   armv7-unknown-linux-gnueabi %s | FileCheck %s
   8 @RUN: llvm-mc -triple thumbv5-unknown-linux-gnueabi %s | FileCheck %s
   9 @RUN: llvm-mc -triple thumbv7-unknown-linux-gnueabi %s | FileCheck %s
  10
  11 @ check that ltorg dumps the constant pool at the current location
  12 .section a,"ax",%progbits
  13 @ CHECK-LABEL: f2:
  14 f2:
  15   ldr r0, =0x10002
  16 @ CHECK: ldr r0, .Ltmp[[TMP0:[0-9+]]]
  17   adds r0, r0, #1
  18   adds r0, r0, #1
  19   b f3
  20 .ltorg
  21 @ constant pool
  22 @ CHECK: .p2align 2
  23 @ CHECK: .Ltmp[[TMP0]]
  24 @ CHECK: .long 65538
  25
  26 @ CHECK-LABEL: f3:
  27 f3:
  28   adds r0, r0, #1
  29   adds r0, r0, #1
  30
  31 @ check that ltorg clears the constant pool after dumping it
  32 .section b,"ax",%progbits
  33 @ CHECK-LABEL: f4:
  34 f4:
  35   ldr r0, =0x10003
  36 @ CHECK: ldr r0, .Ltmp[[TMP1:[0-9+]]]
  37   adds r0, r0, #1
  38   adds r0, r0, #1
  39   b f5
  40 .ltorg
  41 @ constant pool
  42 @ CHECK: .p2align 2
  43 @ CHECK: .Ltmp[[TMP1]]
  44 @ CHECK: .long 65539
  45
  46 @ CHECK-LABEL: f5:
  47 f5:
  48   adds r0, r0, #1
  49   adds r0, r0, #1
  50   ldr r0, =0x10004
  51 @ CHECK: ldr r0, .Ltmp[[TMP2:[0-9+]]]
  52   adds r0, r0, #1
  53   b f6
  54 .ltorg
  55 @ constant pool
  56 @ CHECK: .p2align 2
  57 @ CHECK: .Ltmp[[TMP2]]
  58 @ CHECK: .long 65540
  59
  60 @ CHECK-LABEL: f6:
  61 f6:
  62   adds r0, r0, #1
  63   adds r0, r0, #1
  64
  65 @ check that ltorg does not issue an error if there is no constant pool
  66 .section c,"ax",%progbits
  67 @ CHECK-LABEL: f7:
  68 f7:
  69   adds r0, r0, #1
  70   b f8
  71   .ltorg
  72 f8:
  73   adds r0, r0, #1
  74
  75 @ check that ltorg works for labels
  76 .section d,"ax",%progbits
  77 @ CHECK-LABEL: f9:
  78 f9:
  79   adds r0, r0, #1
  80   adds r0, r0, #1
  81   ldr r0, =bar
  82 @ CHECK: ldr r0, .Ltmp[[TMP3:[0-9+]]]
  83   adds r0, r0, #1
  84   adds r0, r0, #1
  85   adds r0, r0, #1
  86   b f10
  87 .ltorg
  88 @ constant pool
  89 @ CHECK: .p2align 2
  90 @ CHECK: .Ltmp[[TMP3]]
  91 @ CHECK: .long bar
  92
  93 @ CHECK-LABEL: f10:
  94 f10:
  95   adds r0, r0, #1
  96   adds r0, r0, #1
  97
  98 @ check that use of ltorg does not prevent dumping non-empty constant pools at end of section
  99 .section e,"ax",%progbits
 100 @ CHECK-LABEL: f11:
 101 f11:
 102   adds r0, r0, #1
 103   adds r0, r0, #1
 104   ldr r0, =0x10005
 105 @ CHECK: ldr r0, .Ltmp[[TMP4:[0-9+]]]
 106   b f12
 107   .ltorg
 108 @ constant pool
 109 @ CHECK: .p2align 2
 110 @ CHECK: .Ltmp[[TMP4]]
 111 @ CHECK: .long 65541
 112 @ CHECK-LABEL: f12:
 113 f12:
 114   adds r0, r0, #1
 115   ldr r0, =0x10006
 116 @ CHECK: ldr r0, .Ltmp[[TMP5:[0-9+]]]
 117
 118 .section f,"ax",%progbits
 119 @ CHECK-LABEL: f13
 120 f13:
 121   adds r0, r0, #1
 122   adds r0, r0, #1
 123
 124 @ should not have a constant pool at end of section with empty constant pools
 125 @ CHECK-NOT: .section a,"ax",%progbits
 126 @ CHECK-NOT: .section b,"ax",%progbits
 127 @ CHECK-NOT: .section c,"ax",%progbits
 128 @ CHECK-NOT: .section d,"ax",%progbits
 129
 130 @ should have a non-empty constant pool at end of this section
 131 @ CHECK: .section e,"ax",%progbits
 132 @ constant pool
 133 @ CHECK: .p2align 2
 134 @ CHECK: .Ltmp[[TMP5]]
 135 @ CHECK: .long 65542
 136
 137 @ should not have a constant pool at end of section with empty constant pools
 138 @ CHECK-NOT: .section f,"ax",%progbits