[llvm-bugs] [Bug 48377] New: [codeview] Inline sites in PDB sometimes don't contain code offset

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=48377

            Bug ID: 48377
           Summary: [codeview] Inline sites in PDB sometimes don't contain
                    code offset
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: DebugInfo
          Assignee: unassignedbugs at nondot.org
          Reporter: akhuang at google.com
                CC: jdevlieghere at apple.com, keith.walker at arm.com,
                    llvm-bugs at lists.llvm.org,
                    paul_robinson at playstation.sony.com

Some inline sites don't have starting code offsets and thus aren't found by
llvm-symbolizer.

to repro:
$ cat t.cpp
int main(int argc, char *argv[]) {
  auto f = [](int x) {
    return x * 100;
  };
  return f(argc);
}
$ clang -cc1 -triple x86_64-windows-msvc -emit-obj -gcodeview
-debug-info-kind=line-tables-only -Os -o t.obj t.cpp
$ lld-link t.obj -debug -entry:main -pdb:t.pdb
$ llvm-pdbutil dump -symbols t.pdb | grep -A3 "S_INLINESITE "
     212 | S_INLINESITE [size = 20]
           inlinee = 0x1000 (main(int, char **)::(anonymous c...), parent =
136, end = 232
             0602      line 1 (+1)
             0403      code end 0x3 (+0x3)
$ llvm-symbolizer --obj=t.exe --relative-address 0x1000
main
??:0:0

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