diff options
| -rw-r--r-- | lib/VMCore/AsmWriter.cpp | 15 | ||||
| -rw-r--r-- | test/Feature/metadata.ll | 13 |
2 files changed, 23 insertions, 5 deletions
diff --git a/lib/VMCore/AsmWriter.cpp b/lib/VMCore/AsmWriter.cpp index fc845c1..4e8938f 100644 --- a/lib/VMCore/AsmWriter.cpp +++ b/lib/VMCore/AsmWriter.cpp @@ -677,11 +677,16 @@ void SlotTracker::processFunction() { if (!I->getType()->isVoidTy() && !I->hasName()) CreateFunctionSlot(I); - // Intrinsics can directly use metadata. - if (isa<IntrinsicInst>(I)) - for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) - if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i))) - CreateMetadataSlot(N); + // Intrinsics can directly use metadata. We allow direct calls to any + // llvm.foo function here, because the target may not be linked into the + // optimizer. + if (const CallInst *CI = dyn_cast<CallInst>(I)) { + if (Function *F = CI->getCalledFunction()) + if (F->getName().startswith("llvm.")) + for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) + if (MDNode *N = dyn_cast_or_null<MDNode>(I->getOperand(i))) + CreateMetadataSlot(N); + } // Process metadata attached with this instruction. I->getAllMetadata(MDForInst); diff --git a/test/Feature/metadata.ll b/test/Feature/metadata.ll new file mode 100644 index 0000000..3e2cd3c --- /dev/null +++ b/test/Feature/metadata.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llvm-dis | llvm-as | llvm-dis +; PR7105 + +define void @foo() { + call void @llvm.zonk(metadata !1, i64 0, metadata !1) + ret void +} + +declare void @llvm.zonk(metadata, i64, metadata) nounwind readnone + +!named = !{!0} +!0 = metadata !{i8** null} +!1 = metadata !{i8* null} |