llvm/test/CodeGen/X86/basic-block-address-map-empty-block.ll

   1 ;; This test verifies that with -gc-empty-basic-blocks SHT_LLVM_BB_ADDR_MAP will not include entries for empty blocks.
   2 ; RUN: llc < %s -mtriple=x86_64 -O0 -basic-block-address-map -gc-empty-basic-blocks | FileCheck --check-prefix=CHECK %s
   3
   4 define void @foo(i1 zeroext %0) nounwind {
   5   br i1 %0, label %2, label %empty_block
   6
   7 2:                                               ; preds = %1
   8   %3 = call i32 @bar()
   9   br label %4
  10
  11 empty_block:                                     ; preds = %1
  12   unreachable
  13
  14 4:                                               ; preds = %2, %empty_block
  15   ret void
  16 }
  17
  18 declare i32 @bar()
  19
  20 ; CHECK: .section       .llvm_bb_addr_map,"o",@llvm_bb_addr_map,.text
  21 ; CHECK: .byte  3                               # number of basic blocks