From 3b5b2a22ca8f5eddcaf322bdff4d0ad5ba342676 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Wed, 18 Apr 2012 22:24:33 +0000 Subject: Don't crash on code where the user put __attribute__((constructor)) on a function with arguments. This fixes rdar://11265785. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155073 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/Scalar/ObjCARC.cpp | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'lib') diff --git a/lib/Transforms/Scalar/ObjCARC.cpp b/lib/Transforms/Scalar/ObjCARC.cpp index 7e3e69b..29234da 100644 --- a/lib/Transforms/Scalar/ObjCARC.cpp +++ b/lib/Transforms/Scalar/ObjCARC.cpp @@ -1033,7 +1033,11 @@ bool ObjCARCAPElim::runOnModule(Module &M) { Value *Op = *OI; // llvm.global_ctors is an array of pairs where the second members // are constructor functions. - Function *F = cast(cast(Op)->getOperand(1)); + Function *F = dyn_cast(cast(Op)->getOperand(1)); + // If the user used a constructor function with the wrong signature and + // it got bitcasted or whatever, look the other way. + if (!F) + continue; // Only look at function definitions. if (F->isDeclaration()) continue; -- cgit v1.1