[llvm-commits] CVS: llvm/lib/Analysis/BasicAliasAnalysis.cpp

[Chris Lattner]

Changes in directory llvm/lib/Analysis:

BasicAliasAnalysis.cpp updated: 1.10 -> 1.11

---
Log message:

Implement handling of constantexprs for disambiguation.  This implements
BasicAA/featuretest.ll:constexpr_test


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Diffs of the changes:

Index: llvm/lib/Analysis/BasicAliasAnalysis.cpp
diff -u llvm/lib/Analysis/BasicAliasAnalysis.cpp:1.10 llvm/lib/Analysis/BasicAliasAnalysis.cpp:1.11
--- llvm/lib/Analysis/BasicAliasAnalysis.cpp:1.10	Mon Jun  2 00:42:39 2003
+++ llvm/lib/Analysis/BasicAliasAnalysis.cpp	Tue Jun 17 10:25:37 2003
@@ -69,6 +69,12 @@
   if (const Instruction *I = dyn_cast<Instruction>(V)) {
     if (isa<CastInst>(I) || isa<GetElementPtrInst>(I))
       return getUnderlyingObject(I->getOperand(0));
+  } else if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
+    if (CE->getOpcode() == Instruction::Cast ||
+        CE->getOpcode() == Instruction::GetElementPtr)
+      return getUnderlyingObject(CE->getOperand(0));
+  } else if (const ConstantPointerRef *CPR = dyn_cast<ConstantPointerRef>(V)) {
+    return CPR->getValue();
   }
   return 0;
 }