[llvm-bugs] [Bug 27614] New: Wrong location for -Wmissing-braces for overriding initializers

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=27614

            Bug ID: 27614
           Summary: Wrong location for -Wmissing-braces for overriding
                    initializers
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cherepan at mccme.ru
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Source code:

----------------------------------------------------------------------
int main()
{
  struct { struct { int x; } sub; } s = { .sub = { 1 }, .sub = 2 };
  (void)s;
}
----------------------------------------------------------------------

Results:

----------------------------------------------------------------------
$ clang -std=c11 -Weverything -O3 test.c && ./a.out
test.c:3:65: warning: initializer overrides prior initialization of this
subobject [-Winitializer-overrides]
  struct { struct { int x; } sub; } s1 = { .sub = { 1 }, .sub = 2 };
                                                                ^
test.c:3:53: note: previous initialization is here
  struct { struct { int x; } sub; } s1 = { .sub = { 1 }, .sub = 2 };
                                                    ^
test.c:3:51: warning: suggest braces around initialization of subobject
[-Wmissing-braces]
  struct { struct { int x; } sub; } s1 = { .sub = { 1 }, .sub = 2 };
                                                  ^~~~~
                                                  {    }
test.c:4:51: warning: suggest braces around initialization of subobject
[-Wmissing-braces]
  struct { struct { int x; } sub; } s2 = { .sub = 1, .sub = 2 };
                                                  ^
                                                  {}
test.c:4:61: warning: initializer overrides prior initialization of this
subobject [-Winitializer-overrides]
  struct { struct { int x; } sub; } s2 = { .sub = 1, .sub = 2 };
                                                            ^
test.c:4:51: note: previous initialization is here
  struct { struct { int x; } sub; } s2 = { .sub = 1, .sub = 2 };
                                                  ^
test.c:4:51: warning: suggest braces around initialization of subobject
[-Wmissing-braces]
  struct { struct { int x; } sub; } s2 = { .sub = 1, .sub = 2 };
                                                  ^~~~~~~~~~~
                                                  {          }
5 warnings generated.
----------------------------------------------------------------------

clang version: clang version 3.9.0 (trunk 268228)

I guess the 2nd and 5th warnings intended to warn about missing braces around
"2" only.

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