Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130585 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 7556ba52b7..2538475e4e 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -127,6 +127,8 @@ public:
   virtual void EmitDwarfAdvanceLineAddr(int64_t LineDelta,
                                         const MCSymbol *LastLabel,
                                         const MCSymbol *Label);
+  virtual void EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
+                                         const MCSymbol *Label);
 
   virtual void EmitSymbolAttribute(MCSymbol *Symbol, MCSymbolAttr Attribute);
 
@@ -324,6 +326,15 @@ void MCAsmStreamer::EmitDwarfAdvanceLineAddr(int64_t LineDelta,
                        getContext().getTargetAsmInfo().getPointerSize());
 }
 
+void MCAsmStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
+                                              const MCSymbol *Label) {
+  EmitIntValue(dwarf::DW_CFA_advance_loc4, 1);
+  const MCExpr *AddrDelta = BuildSymbolDiff(getContext(), Label, LastLabel);
+  AddrDelta = ForceExpAbs(this, getContext(), AddrDelta);
+  EmitValue(AddrDelta, 4);
+}
+
+
 void MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
                                         MCSymbolAttr Attribute) {
   switch (Attribute) {