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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/109411] New: missing debug information with statement
 frontiers
Date: Tue, 04 Apr 2023 16:11:31 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: debug
X-Bugzilla-Version: 12.0
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X-Bugzilla-Who: mpolacek at gcc dot gnu.org
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109411

            Bug ID: 109411
           Summary: missing debug information with statement frontiers
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

$ cat main.cc
#include "test.h"

void invokeInline (Message & msg, int param)
{
  someInlineFunction (msg, param);
}

int main ()
{
  Message msg;
  invokeInline (msg, 42);
}

$ cat test.h=20
struct Message {
  int member{35};
};

template<typename T>
void someInlineFunction (T & msg, int value)
{
   msg.member +=3D value;
}

$ g++ -Og -g main.cc
$ gdb --nh --batch -ex 'break test.h:9' -ex run ./a.out
No line 9 in file "test.h".
[...]

but:

$ g++ -Og -g main.cc -gno-statement-frontiers
$ gdb --nh --batch -ex 'break test.h:9' -ex run ./a.out
Breakpoint 1 at 0x40113b: file /home/mpolacek/x/trunk/gcc/r/test.h, line 9.
[...]=