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

   1 // RUN: dsymutil -f -y %p/dummy-debug-map.map -oso-prepend-path \
   2 // RUN:   %p/../Inputs/inlined-static-variable -o - -keep-function-for-static \
   3 // RUN:   | llvm-dwarfdump - | FileCheck %s --implicit-check-not \
   4 // RUN:   "{{DW_AT_low_pc|DW_AT_high_pc|DW_AT_location|DW_TAG|NULL}}" \
   5 // RUN:   --check-prefixes=CHECK
   6 //
   7 // RUN: dsymutil --linker parallel --no-odr -f -y %p/dummy-debug-map.map \
   8 // RUN:   -oso-prepend-path %p/../Inputs/inlined-static-variable -o - \
   9 // RUN:   -keep-function-for-static | llvm-dwarfdump - | FileCheck %s \
  10 // RUN:   --implicit-check-not \
  11 // RUN:   "{{DW_AT_low_pc|DW_AT_high_pc|DW_AT_location|DW_TAG|NULL}}" \
  12 // RUN:   --check-prefixes=CHECK
  13
  14 // clang -g -c inlined-static-variable.cpp -o 4.o
  15
  16 // The functions removed and not_removed are not in the debug map and are
  17 // considered dead, but they are also inlined into the function foo which is
  18 // in the debug map. Those function-local globals are alive and thus should
  19 // have locations in the debug info even if their functions do not.
  20
  21 inline __attribute__((always_inline)) int removed() {
  22   static int a = 0;
  23   return ++a;
  24 }
  25
  26 __attribute__((always_inline)) int not_removed() {
  27   static int b = 0;
  28   return ++b;
  29 }
  30
  31 int unused() {
  32   static int c = 0;
  33   return ++c;
  34 }
  35
  36 int foo() {
  37   return removed() + not_removed();
  38 }
  39
  40 // CHECK: DW_TAG_compile_unit
  41 // CHECK:   DW_AT_low_pc
  42 // CHECK:   DW_AT_high_pc
  43
  44 // CHECK:   DW_TAG_subprogram
  45 // CHECK:     DW_AT_name        ("removed")
  46 // CHECK:     DW_TAG_variable
  47 // CHECK:       DW_AT_name      ("a")
  48 // CHECK:       DW_AT_location
  49 // CHECK:     NULL
  50
  51 // CHECK:   DW_TAG_base_type
  52 // CHECK:   DW_TAG_subprogram
  53 // CHECK:     DW_AT_name        ("not_removed")
  54 // CHECK:     DW_TAG_variable
  55 // CHECK:       DW_AT_name      ("b")
  56 // CHECK:       DW_AT_location
  57 // CHECK:     NULL
  58
  59 // CHECK:   DW_TAG_subprogram
  60 // CHECK:     DW_AT_low_pc
  61 // CHECK:     DW_AT_high_pc
  62 // CHECK:     DW_AT_name        ("foo")
  63 // CHECK:     DW_TAG_inlined_subroutine
  64 // CHECK:       DW_AT_low_pc
  65 // CHECK:       DW_AT_high_pc
  66 // CHECK:     DW_TAG_inlined_subroutine
  67 // CHECK:       DW_AT_low_pc
  68 // CHECK:       DW_AT_high_pc
  69 // CHECK:     NULL
  70 // CHECK:   NULL