lldb/test/Shell/SymbolFile/DWARF/DW_OP_piece-O3.c

   1 // Check that optimized with -O3 values that have a file address can be read
   2 // DWARF info:
   3 // 0x00000023:   DW_TAG_variable
   4 //                 DW_AT_name      ("array")
   5 //                 DW_AT_type      (0x00000032 "char[5]")
   6 //                 DW_AT_location  (DW_OP_piece 0x2, DW_OP_addrx 0x0, DW_OP_piece 0x1)
   7
   8 // UNSUPPORTED: system-windows
   9 // RUN: %clang_host -O3 -gdwarf %s -o %t
  10 // RUN: %lldb %t \
  11 // RUN:   -o "b 26" \
  12 // RUN:   -o "r" \
  13 // RUN:   -o "p/x array[2]" \
  14 // RUN:   -b | FileCheck %s
  15 //
  16 // CHECK: (lldb) p/x array[2]
  17 // CHECK: (char) 0x03
  18
  19 static char array[5] = {0, 1, 2, 3, 4};
  20
  21 void func() __attribute__((noinline));
  22 void func() { ++array[2]; };
  23
  24 int main(void) {
  25   func();
  26   return 0;
  27 }