llvm/test/MC/PowerPC/ppc64-prefix-align-labels.s

   1 # RUN: llvm-mc -triple powerpc64-unknown-linux-gnu --filetype=obj -o - %s | \
   2 # RUN:   llvm-objdump -D  -r - | FileCheck --check-prefix=CHECK-BE %s
   3 # RUN: llvm-mc -triple powerpc64le-unknown-linux-gnu --filetype=obj -o - %s | \
   4 # RUN:   llvm-objdump -D  -r - | FileCheck --check-prefix=CHECK-LE %s
   5
   6 # The purpose of this test is to check that when an alignment nop is added
   7 # it is added correctly with resepect to the labels in the .s file.
   8 # The test contains 3 labels at the end (1:, 2:, 3:). The label 2: is on the
   9 # same line as an unaligned 8 byte instruction. The desired behaviour is to have
  10 # the alignment nop inserted after the 1: label but before the 2: label. The
  11 # branch to 1: should jump to 3c: and the branch to 2: should jump to 40:.
  12
  13         .text
  14 _start:
  15         b 1f;
  16         b 2f;
  17         b 3f;
  18 # CHECK-BE:      0:       48 00 00 3c
  19 # CHECK-BE-NEXT: 4:       48 00 00 3c
  20 # CHECK-BE-NEXT: 8:       48 00 00 40
  21 # CHECK-LE:      0:       3c 00 00 48
  22 # CHECK-LE-NEXT: 4:       3c 00 00 48
  23 # CHECK-LE-NEXT: 8:       40 00 00 48
  24         trap
  25         trap
  26         trap
  27         trap
  28         trap
  29         trap
  30         trap
  31         trap
  32         trap
  33         trap
  34         trap
  35         trap
  36 1:
  37 2:      paddi 1, 2, 8589934576, 0  # 8 Byte Instruction
  38 3:
  39         blr
  40 # CHECK-BE:      3c:       60 00 00 00     nop
  41 # CHECK-BE-NEXT: 40:       06 01 ff ff 38 22 ff f0 paddi 1, 2, 8589934576, 0
  42 # CHECK-BE-NEXT: 48:       4e 80 00 20
  43 # CHECK-LE:      3c:       00 00 00 60     nop
  44 # CHECK-LE-NEXT: 40:       ff ff 01 06 f0 ff 22 38 paddi 1, 2, 8589934576, 0
  45 # CHECK-LE-NEXT: 48:       20 00 80 4e
  46