Minor optimization: reduce redudant label scanning in common widgets.

docs/CHANGELOG.txt

@@ -64,6 +64,8 @@ Other Changes:
     reporting the common clipper error over a table sanity check assert). (#9350)
   - Tweaked assert triggering when first item height measurement fails, and made it
     a better recoverable error. (#9350)
+- Misc:
+  - Minor optimization: reduce redudant label scanning in common widgets.
 - Backends:
   - Metal: avoid redundant vertex buffer bind in SetupRenderState, which leads
     to validation issue. (#9343) [@Hunam6]

imgui.cpp

@@ -3832,7 +3832,7 @@ void ImGui::RenderText(ImVec2 pos, const char* text, const char* text_end, bool
     else
     {
         if (!text_end)
-            text_end = text + ImStrlen(text); // FIXME-OPT
+            text_end = text + ImStrlen(text); // FIXME-OPT (not reached by our internal calls)
         text_display_end = text_end;
     }
 
@@ -3850,7 +3850,7 @@ void ImGui::RenderTextWrapped(ImVec2 pos, const char* text, const char* text_end
     ImGuiWindow* window = g.CurrentWindow;
 
     if (!text_end)
-        text_end = text + ImStrlen(text); // FIXME-OPT
+        text_end = text + ImStrlen(text); // FIXME-OPT (not reached by our internal calls)
 
     if (text != text_end)
     {