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| author | Chris Lattner <sabre@nondot.org> | 2003-09-24 23:42:58 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2003-09-24 23:42:58 +0000 |
| commit | fbc2d84ce9c3ff97a1644b864a2057f8d02179ab (patch) | |
| tree | 346a4087778e8ee78598c4a7997504ca6ef23495 /lib/Analysis | |
| parent | 4eed793d5a3489a65aee8f31f9a099b33868d96b (diff) | |
| download | external_llvm-fbc2d84ce9c3ff97a1644b864a2057f8d02179ab.zip external_llvm-fbc2d84ce9c3ff97a1644b864a2057f8d02179ab.tar.gz external_llvm-fbc2d84ce9c3ff97a1644b864a2057f8d02179ab.tar.bz2 | |
DOn't crash if program calls the null pointer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8708 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/DataStructure/Local.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp index dbf182d..64e6088 100644 --- a/lib/Analysis/DataStructure/Local.cpp +++ b/lib/Analysis/DataStructure/Local.cpp @@ -443,8 +443,14 @@ void GraphBuilder::visitCallSite(CallSite CS) { RetVal = getValueDest(*I); DSNode *Callee = 0; - if (DisableDirectCallOpt || !isa<Function>(CS.getCalledValue())) + if (DisableDirectCallOpt || !isa<Function>(CS.getCalledValue())) { Callee = getValueDest(*CS.getCalledValue()).getNode(); + if (Callee == 0) { + std::cerr << "WARNING: Program is calling through a null pointer?\n" + << *I; + return; // Calling a null pointer? + } + } std::vector<DSNodeHandle> Args; Args.reserve(CS.arg_end()-CS.arg_begin()); |