Add comment

src/builder.rs

@@ -222,6 +222,7 @@ fn check_ptr_call<'b>(&mut self, _typ: &str, func_ptr: RValue<'gcc>, args: &'b [
                     else {
                         assert!(!((actual_ty.is_vector() && !expected_ty.is_vector()) || (!actual_ty.is_vector() && expected_ty.is_vector())), "{:?} ({}) -> {:?} ({}), index: {:?}[{}]", actual_ty, actual_ty.is_vector(), expected_ty, expected_ty.is_vector(), func_ptr, index);
                         // TODO(antoyo): perhaps use __builtin_convertvector for vector casting.
+                        // TODO: remove bitcast now that vector types can be compared?
                         self.bitcast(actual_val, expected_ty)
                     }
                 }
@@ -1497,6 +1498,7 @@ pub fn vector_select(&mut self, cond: RValue<'gcc>, then_val: RValue<'gcc>, else
         // NOTE: sometimes, the type of else_val can be different than the type of then_val in
         // libgccjit (vector of int vs vector of int32_t), but they should be the same for the AND
         // operation to work.
+        // TODO: remove bitcast now that vector types can be compared?
         let else_val = self.context.new_bitcast(None, else_val, then_val.get_type());
         let else_vals = inverted_masks & else_val;
 

src/lib.rs

@@ -1,7 +1,7 @@
 /*
  * TODO(antoyo): implement equality in libgccjit based on https://zpz.github.io/blog/overloading-equality-operator-in-cpp-class-hierarchy/ (for type equality?)
  * TODO(antoyo): support #[inline] attributes.
- * TODO(antoyo): support LTO (gcc's equivalent to Thin LTO is enabled by -fwhopr: https://stackoverflow.com/questions/64954525/does-gcc-have-thin-lto).
+ * TODO(antoyo): support LTO (gcc's equivalent to Full LTO is -flto -flto-partition=one — https://documentation.suse.com/sbp/all/html/SBP-GCC-10/index.html).
  *
  * TODO(antoyo): remove the patches.
  */