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| author | Chris Lattner <sabre@nondot.org> | 2003-11-09 03:32:52 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-11-09 03:32:52 +0000 |
| commit | cff83a2f242f686503a4e54df00aed3f0fa321ca (patch) | |
| tree | 2dd5eee9c3d3b95bac67875cc5613a519b622486 /llvm/lib/Analysis/DataStructure/Local.cpp | |
| parent | c3c242c3aca5c2d2ce9de80f602bab9e200e8a78 (diff) | |
| download | bcm5719-llvm-cff83a2f242f686503a4e54df00aed3f0fa321ca.tar.gz bcm5719-llvm-cff83a2f242f686503a4e54df00aed3f0fa321ca.zip | |
Add support for memmove
llvm-svn: 9824
Diffstat (limited to 'llvm/lib/Analysis/DataStructure/Local.cpp')
| -rw-r--r-- | llvm/lib/Analysis/DataStructure/Local.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/DataStructure/Local.cpp b/llvm/lib/Analysis/DataStructure/Local.cpp index f3406b76990..0aca21a437b 100644 --- a/llvm/lib/Analysis/DataStructure/Local.cpp +++ b/llvm/lib/Analysis/DataStructure/Local.cpp @@ -446,6 +446,15 @@ void GraphBuilder::visitCallSite(CallSite CS) { if (DSNode *N = RetNH.getNode()) N->setModifiedMarker(); return; + } else if (F->getName() == "memmove") { + // Merge the first & second arguments with the result, and mark the + // memory read and modified. + DSNodeHandle RetNH = getValueDest(*CS.getInstruction()); + RetNH.mergeWith(getValueDest(**CS.arg_begin())); + RetNH.mergeWith(getValueDest(**(CS.arg_begin()+1))); + if (DSNode *N = RetNH.getNode()) + N->setModifiedMarker()->setReadMarker(); + return; } else if (F->getName() == "bzero") { // Mark the memory modified. DSNodeHandle H = getValueDest(**CS.arg_begin()); |
