From fb227db74439dcece17291638b5587e11fcaf64f Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sat, 31 Dec 2022 00:37:59 +0200
Subject: [PATCH] Optimize Binary::collect_build_info

It's likely that all object files are built with very few different
tools, evne just one.  Updating the build info multiple times from the
same tool is pointless.
---
 source/lib/binary.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/lib/binary.cpp b/source/lib/binary.cpp
index f245037..9d73785 100644
--- a/source/lib/binary.cpp
+++ b/source/lib/binary.cpp
@@ -28,9 +28,13 @@ Binary::Binary(Builder &b, const Component &c, const string &p, const vector<Obj
 
 void Binary::collect_build_info(BuildInfo &binfo) const
 {
+	vector<const Tool *> tools;
 	for(ObjectFile *o: objects)
 		if(const Tool *obj_tool = o->get_tool())
-			binfo.update_from(obj_tool->get_build_info());
+			if(!any_equals(tools, obj_tool))
+				tools.push_back(obj_tool);
+	for(const Tool *t: tools)
+		binfo.update_from(t->get_build_info());
 
 	Target::collect_build_info(binfo);
 
-- 
2.43.0