lld/test/ELF/ppc64-toc-relax-jumptable.s

   1 # REQUIRES: ppc
   2 # RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
   3 # RUN: ld.lld %t.o -o %t
   4 # RUN: llvm-readelf -S %t | FileCheck --check-prefixes=SECTIONS %s
   5 # RUN: llvm-readelf -x .toc %t | FileCheck --check-prefixes=HEX-LE %s
   6 # RUN: llvm-objdump -d %t | FileCheck --check-prefixes=CHECK %s
   7
   8 # RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
   9 # RUN: ld.lld %t.o -o %t
  10 # RUN: llvm-readelf -S %t | FileCheck --check-prefixes=SECTIONS %s
  11 # RUN: llvm-readelf -x .toc %t | FileCheck --check-prefixes=HEX-BE %s
  12 # RUN: llvm-objdump -d %t | FileCheck --check-prefixes=CHECK %s
  13
  14 # .LJT is a local symbol (non-preemptable).
  15 # Test we can perform the toc-indirect to toc-relative relaxation.
  16
  17 # SECTIONS: .rodata PROGBITS 00000000100001c8
  18
  19 # HEX-LE:      section '.toc':
  20 # HEX-LE-NEXT: 10020228 c8010010 00000000
  21
  22 # HEX-BE:      section '.toc':
  23 # HEX-BE-NEXT: 10020228 00000000 100001c8
  24
  25 # CHECK-LABEL: _start
  26 # CHECK:       clrldi  3, 3, 62
  27 # CHECK-NEXT:  addis 4, 2, -3
  28 # CHECK-NEXT:  addi  4, 4, 32680
  29 # CHECK-NEXT:  sldi  3, 3, 2
  30
  31     .text
  32     .global _start
  33     .type _start, @function
  34 _start:
  35 .Lstart_gep:
  36     addis 2, 12, .TOC.-.Lstart_gep@ha
  37     addi  2,  2, .TOC.-.Lstart_gep@l
  38 .Lstart_lep:
  39     .localentry _start, .Lstart_lep-.Lstart_gep
  40     rldicl 3, 3, 0, 62
  41     addis 4, 2, .LJTI_TE@toc@ha
  42     ld    4, .LJTI_TE@toc@l(4)
  43     sldi  3, 3, 2
  44     lwax  3, 3, 4
  45     add   3, 3, 4
  46     mtctr 3
  47     bctr
  48
  49 .LBB1:
  50     li 3, 0
  51     blr
  52 .LBB2:
  53     li 3, 10
  54     blr
  55 .LBB3:
  56     li 3, 55
  57     blr
  58 .LBB4:
  59     li 3, 255
  60     blr
  61
  62     .section        .rodata,"a",@progbits
  63     .p2align        2
  64 .LJT:
  65     .long   .LBB1-.LJT
  66     .long   .LBB2-.LJT
  67     .long   .LBB3-.LJT
  68     .long   .LBB4-.LJT
  69
  70 .section        .toc,"aw",@progbits
  71 # TOC entry for the jumptable address.
  72 .LJTI_TE:
  73     .tc .LJT[TC],.LJT