6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-11 21:38:19 +00:00
Code Issues Projects Releases Wiki Activity

Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis

Browse Source 
chaining and simplify FunctionAttrs' GetModRefBehavior logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-11-10 01:02:18 +00:00
parent cc8d10e1a8
commit 42c31a7073
8 changed files with 71 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Analysis/TypeBasedAliasAnalysis.cpp
View File

@ -256,11 +256,12 @@ TypeBasedAliasAnalysis::getModRefBehavior(ImmutableCallSite CS) {
if (TBAANode(M).TypeIsImmutable())
Min = OnlyReadsMemory;
return std::min(AliasAnalysis::getModRefBehavior(CS), Min);
return ModRefBehavior(AliasAnalysis::getModRefBehavior(CS) & Min);
}
AliasAnalysis::ModRefBehavior
TypeBasedAliasAnalysis::getModRefBehavior(const Function *F) {
// Functions don't have metadata. Just chain to the next implementation.
return AliasAnalysis::getModRefBehavior(F);
}