intel/llvm
1
0
Fork 0
mirror of https://github.com/intel/llvm.git synced 2026-02-04 03:26:06 +08:00
Code Issues Packages Projects Releases Wiki Activity

[Lex] Speed up updateConsecutiveMacroArgTokens (NFC)

Browse Source 
SM.isWrittenInSameFile() calls getFileID(), which can be expensive.
Move this check behind some cheaper filters.

llvm-svn: 274800
This commit is contained in:
Vedant Kumar
2016-07-07 22:38:29 +00:00
parent 13dff57849
commit 3339c568c4
1 changed files with 4 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
clang/lib/Lex/TokenLexer.cpp
View File

@@ -787,9 +787,6 @@ static void updateConsecutiveMacroArgTokens(SourceManager &SM,
if (CurLoc.isFileID() != NextLoc.isFileID())
break; // Token from different kind of FileID.
if (CurLoc.isMacroID() && !SM.isWrittenInSameFile(CurLoc, NextLoc))
break; // Token from a different macro.
int RelOffs;
if (!SM.isInSameSLocAddrSpace(CurLoc, NextLoc, &RelOffs))
break; // Token from different local/loaded location.
@@ -797,6 +794,10 @@ static void updateConsecutiveMacroArgTokens(SourceManager &SM,
// "characters" away.
if (RelOffs < 0 || RelOffs > 50)
break;
if (CurLoc.isMacroID() && !SM.isWrittenInSameFile(CurLoc, NextLoc))
break; // Token from a different macro.
CurLoc = NextLoc;
}