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| author | Chris Lattner <sabre@nondot.org> | 2005-03-05 19:04:31 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2005-03-05 19:04:31 +0000 |
| commit | 3267265d781822ca43ccc2816913fc65dfccfd6d (patch) | |
| tree | e6a5d772b095e9695f4c61bb724c1114803300a8 /lib/Analysis/DataStructure/Local.cpp | |
| parent | 262bb9ae5e5d31150f2efd80cf5880bf8fb9fbec (diff) | |
| download | llvm-3267265d781822ca43ccc2816913fc65dfccfd6d.tar.gz llvm-3267265d781822ca43ccc2816913fc65dfccfd6d.tar.bz2 llvm-3267265d781822ca43ccc2816913fc65dfccfd6d.tar.xz | |
Make sure the two arguments of a setcc instruction point to the same node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20462 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/DataStructure/Local.cpp')
| -rw-r--r-- | lib/Analysis/DataStructure/Local.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp index 070b695b34..20f45a7b27 100644 --- a/lib/Analysis/DataStructure/Local.cpp +++ b/lib/Analysis/DataStructure/Local.cpp @@ -112,7 +112,7 @@ namespace { void visitStoreInst(StoreInst &SI); void visitCallInst(CallInst &CI); void visitInvokeInst(InvokeInst &II); - void visitSetCondInst(SetCondInst &SCI) {} // SetEQ & friends are ignored + void visitSetCondInst(SetCondInst &SCI); void visitFreeInst(FreeInst &FI); void visitCastInst(CastInst &CI); void visitInstruction(Instruction &I); @@ -325,6 +325,13 @@ void GraphBuilder::visitSelectInst(SelectInst &SI) { Dest.mergeWith(getValueDest(*SI.getOperand(2))); } +void GraphBuilder::visitSetCondInst(SetCondInst &SCI) { + if (!isPointerType(SCI.getOperand(0)->getType()) || + isa<ConstantPointerNull>(SCI.getOperand(1))) return; // Only pointers + ScalarMap[SCI.getOperand(0)].mergeWith(getValueDest(*SCI.getOperand(1))); +} + + void GraphBuilder::visitGetElementPtrInst(User &GEP) { DSNodeHandle Value = getValueDest(*GEP.getOperand(0)); if (Value.isNull()) |