llvm/test/CodeGen/X86/basic-block-sections-labels-empty-function.ll

   1 ;; Verify that the BB address map is not emitted for empty functions.
   2 ; RUN: llc < %s -mtriple=x86_64 -basic-block-sections=labels | FileCheck %s
   3
   4 define void @empty_func() {
   5 entry:
   6   unreachable
   7 }
   8 ; CHECK:                {{^ *}}.text{{$}}
   9 ; CHECK:        empty_func:
  10 ; CHECK:        .Lfunc_begin0:
  11 ; CHECK-NOT:    .section        .llvm_bb_addr_map
  12
  13 define void @func() {
  14 entry:
  15   ret void
  16 }
  17
  18 ; CHECK:        func:
  19 ; CHECK:        .Lfunc_begin1:
  20 ; CHECK:                .section        .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text{{$}}
  21 ; CHECK-NEXT:           .byte 2                 # version
  22 ; CHECK-NEXT:           .byte 0                 # feature
  23 ; CHECK-NEXT:           .quad   .Lfunc_begin1   # function address