test/MC/COFF/comm-align.s

   1 # RUN: llvm-mc -triple i686-windows-gnu -filetype obj -o - %s \
   2 # RUN:    | llvm-readobj --coff-directives --symbols | FileCheck %s
   3
   4 # NOTE: this test checks multiple things:
   5 # - that -aligncomm is not emitted for 1-byte alignment
   6 # - that -aligncomm is emitted for the various alignments (greater than 1)
   7 # - that the alignment is represented as a log_2 of the alignment
   8 # - that the section switching occurs correctly
   9 # - that functions after the switch also are emitted into the correct section
  10
  11         .text
  12
  13         .def _a
  14                 .scl 3
  15                 .type 32
  16         .endef
  17 _a:
  18         ret
  19
  20         .data
  21
  22         .comm _s_1,4,0                  # @s_1
  23         .comm _s_2,4,1                  # @s_2
  24         .comm _s_4,4,2                  # @s_3
  25         .comm _s_8,4,3                  # @s_4
  26
  27         .comm _small_but_overaligned,1,3                  # @s_4
  28
  29         .text
  30
  31         .def _b
  32                 .scl 3
  33                 .type 32
  34         .endef
  35 _b:
  36         ret
  37
  38 # CHECK-NOT: -aligncomm:"_s_1",0
  39
  40 # CHECK: Symbols [
  41 # CHECK:   Symbol {
  42 # CHECK:     Name: _a
  43 # CHECK:     Section: .text (1)
  44 # CHECK:   }
  45 # CHECK:   Symbol {
  46 # CHECK:     Name: _small_but_overaligned
  47 # CHECK-NEXT:Value: 1
  48 # CHECK-NEXT:Section: IMAGE_SYM_UNDEFINED (0)
  49 # CHECK:   }
  50 # CHECK:   Symbol {
  51 # CHECK:     Name: _b
  52 # CHECK:     Section: .text (1)
  53 # CHECK:   }
  54 # CHECK: ]
  55
  56 # CHECK: Directive(s): -aligncomm:"_s_2",1 -aligncomm:"_s_4",2 -aligncomm:"_s_8",3 -aligncomm:"_small_but_overaligned",3
  57