diff options
Diffstat (limited to 'lib/VMCore/Function.cpp')
-rw-r--r-- | lib/VMCore/Function.cpp | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp index dbc283e..8f94efc 100644 --- a/lib/VMCore/Function.cpp +++ b/lib/VMCore/Function.cpp @@ -16,6 +16,7 @@ #include "llvm/IntrinsicInst.h" #include "llvm/LLVMContext.h" #include "llvm/CodeGen/ValueTypes.h" +#include "llvm/Support/CallSite.h" #include "llvm/Support/LeakDetector.h" #include "llvm/Support/ManagedStatic.h" #include "llvm/Support/StringPool.h" @@ -400,13 +401,16 @@ Function *Intrinsic::getDeclaration(Module *M, ID id, const Type **Tys, #include "llvm/Intrinsics.gen" #undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN - /// hasAddressTaken - returns true if there are any uses of this function - /// other than direct calls or invokes to it. -bool Function::hasAddressTaken() const { - for (Value::use_const_iterator I = use_begin(), E = use_end(); I != E; ++I) { - if (I.getOperandNo() != 0 || - (!isa<CallInst>(*I) && !isa<InvokeInst>(*I))) - return true; +/// hasAddressTaken - returns true if there are any uses of this function +/// other than direct calls or invokes to it. +bool Function::hasAddressTaken(const User* *PutOffender) const { + for (Value::const_use_iterator I = use_begin(), E = use_end(); I != E; ++I) { + const User *U = *I; + if (!isa<CallInst>(U) && !isa<InvokeInst>(U)) + return PutOffender ? (*PutOffender = U, true) : true; + ImmutableCallSite CS(cast<Instruction>(U)); + if (!CS.isCallee(I)) + return PutOffender ? (*PutOffender = U, true) : true; } return false; } |