From 79a8b14237eca20a0e8256f5683d6ca092f38a0b Mon Sep 17 00:00:00 2001 From: Piotr Trojanek Date: Mon, 24 May 2021 16:14:40 +0200 Subject: [PATCH] [Ada] Avoid linear search when ensuring dependency on System gcc/ada/ * lib-writ.adb (Ensure_System_Dependency): Replace search in Lib.Units with a search in Lib.Unit_Names. --- gcc/ada/lib-writ.adb | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/gcc/ada/lib-writ.adb b/gcc/ada/lib-writ.adb index 416052c943e5..1b2912a53b2c 100644 --- a/gcc/ada/lib-writ.adb +++ b/gcc/ada/lib-writ.adb @@ -137,7 +137,8 @@ package body Lib.Writ is ------------------------------ procedure Ensure_System_Dependency is - System_Uname : Unit_Name_Type; + System_Uname : constant Unit_Name_Type := + Name_To_Unit_Name (Name_System); -- Unit name for system spec if needed for dummy entry System_Fname : File_Name_Type; @@ -146,11 +147,9 @@ package body Lib.Writ is begin -- Nothing to do if we already compiled System - for Unum in Units.First .. Last_Unit loop - if Source_Index (Unum) = System_Source_File_Index then - return; - end if; - end loop; + if Unit_Names.Get (System_Uname) /= No_Unit then + return; + end if; -- If no entry for system.ads in the units table, then add a entry -- to the units table for system.ads, which will be referenced when @@ -158,7 +157,6 @@ package body Lib.Writ is -- on system as a result of Targparm scanning the system.ads file to -- determine the target dependent parameters for the compilation. - System_Uname := Name_To_Unit_Name (Name_System); System_Fname := File_Name (System_Source_File_Index); Units.Increment_Last; -- 2.47.2