ject-13.0.1.src/llvm/include/llvm/ADT/DenseMap.h:128:16: warning: variable 'NumEntries' set but not used [-Wunused-but-set-variable]
          128 |       unsigned NumEntries = getNumEntries();
              |                ^
        /wrkdirs/usr/ports/devel/llvm13/work/llvm-project-13.0.1.src/llvm/tools/sancov/sancov.cpp:512:42: error: chosen constructor is explicit in copy-initialization
          512 |     return SpecialCaseList::createOrDie({{ClBlacklist}},
              |                                          ^~~~~~~~~~~~~
        /usr/include/c++/v1/string:1153:64: note: explicit constructor declared here
         1153 |   _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit basic_string(const _Tp& __t) {
              |                                                                ^
        /usr/include/c++/v1/__vector/vector.h:276:91: note: passing argument to parameter '__il' here
          276 |   _LIBCPP_CONSTEXPR_SINCE_CXX20 _LIBCPP_HIDE_FROM_ABI vector(initializer_list<value_type> __il) {
              |                                                                                           ^
    
    In this case, `ClBlacklist` is an instance of `cl::opt`, not a
    `std::string` as expected. Use `getValue()` to get the actual
    `std::string` value.
    
    PR:             292109
    Approved by:    brooks (maintainer)
    MFH:            2026Q1
---
 devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp b/devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp
new file mode 100644
index 000000000000..12e1cae28c3b
--- /dev/null
+++ b/devel/llvm13/files/patch-llvm_tools_sancov_sancov.cpp
@@ -0,0 +1,11 @@
+--- llvm/tools/sancov/sancov.cpp.orig	2021-06-28 16:23:38 UTC
++++ llvm/tools/sancov/sancov.cpp
+@@ -509,7 +509,7 @@ class Blacklists { (private)
+     if (ClBlacklist.empty())
+       return std::unique_ptr<SpecialCaseList>();
+ 
+-    return SpecialCaseList::createOrDie({{ClBlacklist}},
++    return SpecialCaseList::createOrDie({{ClBlacklist.getValue()}},
+                                         *vfs::getRealFileSystem());
+   }
+   std::unique_ptr<SpecialCaseList> DefaultBlacklist;