6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-26 20:26:07 +00:00
Code Issues Projects Releases Wiki Activity

Intrinsics don't touch internal global variables

Browse Source 
(unless passed one via a parameter), even if they
are IntrWriteMem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56115 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan Sands
2008-09-11 19:35:55 +00:00
parent bcb37fd22f
commit 892b84007c
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
lib/Analysis/IPA/GlobalsModRef.cpp
View File

@@ -392,8 +392,10 @@ void GlobalsModRef::AnalyzeCallGraph(CallGraph &CG, Module &M) {
FR.GlobalInfo[*GI] |= Ref; FR.GlobalInfo[*GI] |= Ref;
} }
} else { } else {
// Can't say anything useful. FunctionEffect |= ModRef;
KnowNothing = true; // Can't say anything useful unless it's an intrinsic - they don't
// read or write global variables of the kind considered here.
KnowNothing = !F->isIntrinsic();
} }
continue; continue;
} }