$ cat dwarf5-addrx-0x0-last.c
#include <stdio.h>

int main (int argc, char const *argv[])
{
  int pass_me = argc + 10;
  printf("Foo\n");
  printf("Bar\n");

  return 0;
}

$ clang -gdwarf-5 dwarf5-addrx-0x0-last.c -c -o dwarf5-addrx-0x0-last.o
$ clang dwarf5-addrx-0x0-last.o -o dwarf5-addrx-0x0-last.out

# Sanity check: make sure main's low PC (0x0) requires an index computation
# into the .debug_addr section.
RUN: llvm-dwarfdump -debug-addr %p/../Inputs/private/tmp/dwarf5/dwarf5-addrx-0x0-last.o | FileCheck %s --check-prefix DEBUGADDR

DEBUGADDR: Addrs: [
DEBUGADDR: 0x0000000000000054
DEBUGADDR: 0x0000000000000059
DEBUGADDR: 0x0000000000000000
DEBUGADDR: ]

RUN: dsymutil -oso-prepend-path %p/../Inputs %p/../Inputs/private/tmp/dwarf5/dwarf5-addrx-0x0-last.out -o %t.dSYM 2>&1 | FileCheck %s --allow-empty
RUN: llvm-dwarfdump --verify %t.dSYM 2>&1 | FileCheck %s
RUN: llvm-dwarfdump --verbose -debug-info %t.dSYM | FileCheck %s --check-prefix DEBUGINFO
RUN: llvm-dwarfdump --verbose -debug-line %t.dSYM | FileCheck %s --check-prefix DEBUGLINE

RUN: dsymutil --linker parallel -oso-prepend-path %p/../Inputs \
RUN:   %p/../Inputs/private/tmp/dwarf5/dwarf5-addrx-0x0-last.out \
RUN:   -o %t.dSYM 2>&1 | FileCheck %s --allow-empty
RUN: llvm-dwarfdump --verify %t.dSYM 2>&1 | FileCheck %s
RUN: llvm-dwarfdump --verbose -debug-info %t.dSYM | FileCheck %s --check-prefix DEBUGINFO
RUN: llvm-dwarfdump --verbose -debug-line %t.dSYM | FileCheck %s --check-prefix DEBUGLINE


CHECK-NOT: error:

DEBUGINFO:   DW_TAG_subprogram
DEBUGINFO:     DW_AT_low_pc [DW_FORM_addrx]      (indexed (00000000) address = 0x0000000100003f4c)
DEBUGINFO:     DW_AT_high_pc [DW_FORM_data4]   (0x00000054)
DEBUGINFO:     DW_AT_name [DW_FORM_strx]       (indexed (00000007) string = "main")

DEBUGLINE:  0x0000000100003f4c   4   0  {{.*}}  is_stmt
DEBUGLINE:  0x0000000100003f6c   5  17  {{.*}}  is_stmt prologue_end
DEBUGLINE:  0x0000000100003f70   5  22  {{.*}}
DEBUGLINE:  0x0000000100003f74   5   7  {{.*}}
DEBUGLINE:  0x0000000100003f78   6   3  {{.*}}  is_stmt
DEBUGLINE:  0x0000000100003f84   7   3  {{.*}}  is_stmt
DEBUGLINE:  0x0000000100003f94   9   3  {{.*}}  is_stmt epilogue_begin
DEBUGLINE:  0x0000000100003fa0   9   3  {{.*}}  is_stmt end_sequence