diff options
| -rw-r--r-- | lib/VMCore/Constants.cpp | 4 | ||||
| -rw-r--r-- | test/Transforms/GlobalOpt/blockaddress.ll | 20 |
2 files changed, 23 insertions, 1 deletions
diff --git a/lib/VMCore/Constants.cpp b/lib/VMCore/Constants.cpp index 041fe2eb4f..edd6a73b08 100644 --- a/lib/VMCore/Constants.cpp +++ b/lib/VMCore/Constants.cpp @@ -261,7 +261,9 @@ bool Constant::isThreadDependent() const { } for (unsigned I = 0, E = C->getNumOperands(); I != E; ++I) { - const Constant *D = cast<Constant>(C->getOperand(I)); + const Constant *D = dyn_cast<Constant>(C->getOperand(I)); + if (!D) + continue; if (Visited.insert(D)) WorkList.push_back(D); } diff --git a/test/Transforms/GlobalOpt/blockaddress.ll b/test/Transforms/GlobalOpt/blockaddress.ll new file mode 100644 index 0000000000..13da76299d --- /dev/null +++ b/test/Transforms/GlobalOpt/blockaddress.ll @@ -0,0 +1,20 @@ +; RUN: opt < %s -globalopt -S | FileCheck %s + +@x = internal global i8* zeroinitializer + +define void @f() { +; CHECK: @f + +; Check that we don't hit an assert in Constant::IsThreadDependent() +; when storing this blockaddress into a global. + + store i8* blockaddress(@g, %here), i8** @x, align 8 + ret void +} + +define void @g() { +; CHECK: @g + +here: + ret void +} |