Fix the clang-cl self-host build by defining ~DwarfDebug out of line
DwarfDebug.h has a SmallVector member containing a unique_ptr of an
incomplete type. MSVC doesn't have key functions, so the vtable and
dtor are emitted in AsmPrinter.cpp, where DwarfDebug's ctor is called.
AsmPrinter.cpp include DwarfUnit.h and doesn't get a complete definition
of DwarfTypeUnit. We could fix the problem by including DwarfUnit.h in
DwarfDebug.h, but that would increase header bloat. Instead, define
~DwarfDebug out of line.
llvm-svn: 207701
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index 4033e65..ac4eea4 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -218,6 +218,9 @@
}
}
+// Define out of line so we don't have to include DwarfUnit.h in DwarfDebug.h.
+DwarfDebug::~DwarfDebug() { }
+
// Switch to the specified MCSection and emit an assembler
// temporary label to it if SymbolStem is specified.
static MCSymbol *emitSectionSym(AsmPrinter *Asm, const MCSection *Section,