It is possible that subprgoram definition is only encoding return value directly, instsad of an DIArray of all argument types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65643 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
index cab6315..5c4957a 100644
--- a/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfWriter.cpp
@@ -1888,8 +1888,12 @@
DIArray Args = SPTy.getTypeArray();
// Add Return Type.
- if (!IsConstructor)
- AddType(DW_Unit, SPDie, DIType(Args.getElement(0).getGV()));
+ if (!IsConstructor) {
+ if (Args.isNull())
+ AddType(DW_Unit, SPDie, SPTy);
+ else
+ AddType(DW_Unit, SPDie, DIType(Args.getElement(0).getGV()));
+ }
if (!SP.isDefinition()) {
AddUInt(SPDie, DW_AT_declaration, DW_FORM_flag, 1);