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| author | Piotr Trojanek <trojanek@adacore.com> | 2021-05-24 16:14:40 +0200 |
|---|---|---|
| committer | Pierre-Marie de Rodat <derodat@adacore.com> | 2021-07-08 13:34:16 +0000 |
| commit | 79a8b14237eca20a0e8256f5683d6ca092f38a0b (patch) | |
| tree | 2d878e9e29087c261d2c17b4ac49549c86fac4cc | |
| parent | 999a2dd00d3cb8127bc1e7a2a5264d2131c92242 (diff) | |
| download | gcc-79a8b14237eca20a0e8256f5683d6ca092f38a0b.zip gcc-79a8b14237eca20a0e8256f5683d6ca092f38a0b.tar.gz gcc-79a8b14237eca20a0e8256f5683d6ca092f38a0b.tar.bz2 | |
[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.
| -rw-r--r-- | gcc/ada/lib-writ.adb | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/gcc/ada/lib-writ.adb b/gcc/ada/lib-writ.adb index 416052c..1b2912a 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; |