diff options
| -rw-r--r-- | llvm/lib/Target/WebAssembly/WebAssemblyLowerGlobalDtors.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/CodeGen/WebAssembly/global_dtors.ll | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyLowerGlobalDtors.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyLowerGlobalDtors.cpp index 72e0c33e1e0..494d3fadbc8 100644 --- a/llvm/lib/Target/WebAssembly/WebAssemblyLowerGlobalDtors.cpp +++ b/llvm/lib/Target/WebAssembly/WebAssemblyLowerGlobalDtors.cpp @@ -61,7 +61,7 @@ bool LowerGlobalDtors::runOnModule(Module &M) { LLVM_DEBUG(dbgs() << "********** Lower Global Destructors **********\n"); GlobalVariable *GV = M.getGlobalVariable("llvm.global_dtors"); - if (!GV) + if (!GV || !GV->hasInitializer()) return false; const ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer()); diff --git a/llvm/test/CodeGen/WebAssembly/global_dtors.ll b/llvm/test/CodeGen/WebAssembly/global_dtors.ll new file mode 100644 index 00000000000..9321dc511d4 --- /dev/null +++ b/llvm/test/CodeGen/WebAssembly/global_dtors.ll @@ -0,0 +1,9 @@ +; RUN: llc < %s + +target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" +target triple = "wasm32-unknown-unknown" + +; Check that we do not crash when attempting to lower away +; global_dtors without a definition. + +@llvm.global_dtors = external global [2 x { i32, void ()*, i8* }] |
