From 95da67852e7c837592a61fb44cd8acd325d16ba2 Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Tue, 29 Oct 2024 15:12:28 +0200
Subject: Minor performance optimization

---
 libbuild2/target.ixx | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/libbuild2/target.ixx b/libbuild2/target.ixx
index 47dff3d..f8ee975 100644
--- a/libbuild2/target.ixx
+++ b/libbuild2/target.ixx
@@ -491,12 +491,14 @@ namespace build2
   //
   inline group_prerequisites::
   group_prerequisites (const target& t)
-      : t_ (t),
-        g_ (t_.group == nullptr                 ||
-            t_.group->adhoc_member != nullptr   || // Ad hoc group member.
-            t_.group->prerequisites ().empty ()
-            ? nullptr : t_.group)
+      : t_ (t), g_ (nullptr)
   {
+    if (const target* g = t_.group)
+    {
+      if (g->adhoc_member == nullptr  && // Not ad hoc group member.
+          !g->prerequisites ().empty ())
+        g_ = g;
+    }
   }
 
   inline group_prerequisites::
-- 
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