test/MC/X86/AlignedBundling/nesting.s

   1 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \
   2 # RUN:   | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s
   3 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mc-relax-all %s -o - \
   4 # RUN:   | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s
   5
   6 # Will be bundle-aligning to 16 byte boundaries
   7   .bundle_align_mode 4
   8   .text
   9 # CHECK-LABEL: foo:
  10 .type   foo,@function
  11 foo:
  12 # Test that bundle alignment mode can be set more than once.
  13   .bundle_align_mode 4
  14 # Each of these callq instructions is 5 bytes long
  15   callq bar
  16   callq bar
  17   .bundle_lock
  18   .bundle_lock
  19   callq bar
  20   callq bar
  21   .bundle_unlock
  22   .bundle_unlock
  23 # CHECK:      10: callq {{.*}} <bar>
  24 # CHECK-NEXT: 15: callq {{.*}} <bar>
  25
  26   .p2align 4
  27 # CHECK-LABEL: bar:
  28 .type   bar,@function
  29 bar:
  30   callq foo
  31   callq foo
  32 # Check that the callqs get bundled together, and that the whole group is
  33 # align_to_end
  34   .bundle_lock
  35   callq bar
  36   .bundle_lock align_to_end
  37   callq bar
  38   .bundle_unlock
  39   .bundle_unlock
  40 # CHECK:      36: callq {{.*}} <bar>
  41 # CHECK-NEXT: 3b: callq {{.*}} <bar>
  42
  43 # CHECK-LABEL: baz:
  44 .type   baz,@function
  45 baz:
  46   callq foo
  47   callq foo
  48 # Check that the callqs get bundled together, and that the whole group is
  49 # align_to_end (with the outer directive marked align_to_end)
  50   .bundle_lock align_to_end
  51   callq bar
  52   .bundle_lock
  53   callq bar
  54   .bundle_unlock
  55   .bundle_unlock
  56 # CHECK:      56: callq {{.*}} <bar>
  57 # CHECK-NEXT: 5b: callq {{.*}} <bar>
  58
  59 # CHECK-LABEL: quux
  60 .type   quux,@function
  61 quux:
  62   callq bar
  63   callq bar
  64   .bundle_lock
  65   .bundle_lock
  66   callq bar
  67   .bundle_unlock
  68   callq bar
  69   .bundle_unlock
  70 # Check that the calls are bundled together when the second one is after the
  71 # inner nest is closed.
  72 # CHECK:      70: callq {{.*}} <bar>
  73 # CHECK-NEXT: 75: callq {{.*}} <bar>