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