[llvm-bugs] [Bug 31781] New: -Wunused-const-variable doesn't warn for ObjC types if ARC is enabled

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=31781

            Bug ID: 31781
           Summary: -Wunused-const-variable doesn't warn for ObjC types if
                    ARC is enabled
           Product: clang
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david at herzka.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

// test.m
static id const kIdConstant = @"abc";
static const int kIntConstant = 123;

int main(int argc, char const *argv[])
{
    return 0;
}


> clang -o test test.m -framework Foundation -Wunused-const-variable
test.m:3:17: warning: unused variable 'kIdConstant' [-Wunused-const-variable]
static id const kIdConstant = @"abc";
                ^
test.m:4:18: warning: unused variable 'kIntConstant' [-Wunused-const-variable]
static const int kIntConstant = 123;
                 ^
2 warnings generated.

> clang -o test test.m -framework Foundation -Wunused-const-variable -fobjc-arc
test.m:4:18: warning: unused variable 'kIntConstant' [-Wunused-const-variable]
static const int kIntConstant = 123;
                 ^
1 warning generated.

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