llvm/test/tools/dsymutil/X86/inlined-static-variable.cpp

   1 // RUN: dsymutil -f -y %p/dummy-debug-map.map -oso-prepend-path %p/../Inputs/inlined-static-variable -o - | llvm-dwarfdump - | FileCheck %s --implicit-check-not "{{DW_AT_low_pc|DW_AT_high_pc|DW_AT_location|DW_TAG|NULL}}"
   2
   3 // clang -g -c inlined-static-variable.cpp -o 4.o
   4
   5 // The functions removed and not_removed are not in the debug map and are
   6 // considered dead, but they are also inlined into the function foo which is
   7 // in the debug map. Those function-local globals are alive and thus should
   8 // have locations in the debug info even if their functions do not.
   9
  10 inline __attribute__((always_inline)) int removed() {
  11   static int a = 0;
  12   return ++a;
  13 }
  14
  15 __attribute__((always_inline)) int not_removed() {
  16   static int b = 0;
  17   return ++b;
  18 }
  19
  20 int unused() {
  21   static int c = 0;
  22   return ++c;
  23 }
  24
  25 int foo() {
  26   return removed() + not_removed();
  27 }
  28
  29 // CHECK: DW_TAG_compile_unit
  30 // CHECK:   DW_AT_low_pc
  31 // CHECK:   DW_AT_high_pc
  32
  33 // CHECK:   DW_TAG_subprogram
  34 // CHECK:     DW_AT_name        ("removed")
  35 // CHECK:     DW_TAG_variable
  36 // CHECK:       DW_AT_name      ("a")
  37 // CHECK:       DW_AT_location
  38 // CHECK:     NULL
  39
  40 // CHECK:   DW_TAG_base_type
  41 // CHECK:   DW_TAG_subprogram
  42 // CHECK:     DW_AT_name        ("not_removed")
  43 // CHECK:     DW_TAG_variable
  44 // CHECK:       DW_AT_name      ("b")
  45 // CHECK:       DW_AT_location
  46 // CHECK:     NULL
  47
  48 // CHECK:   DW_TAG_subprogram
  49 // CHECK:     DW_AT_low_pc
  50 // CHECK:     DW_AT_high_pc
  51 // CHECK:     DW_AT_name        ("foo")
  52 // CHECK:     DW_TAG_inlined_subroutine
  53 // CHECK:       DW_AT_low_pc
  54 // CHECK:       DW_AT_high_pc
  55 // CHECK:     DW_TAG_inlined_subroutine
  56 // CHECK:       DW_AT_low_pc
  57 // CHECK:       DW_AT_high_pc
  58 // CHECK:     NULL
  59 // CHECK:   NULL