From 426e68f793c0b89809129e1657f3dfe1f85bd21f Mon Sep 17 00:00:00 2001
From: Rafael Espindola <rafael.espindola@gmail.com>
Date: Wed, 29 Dec 2010 00:26:06 +0000
Subject: Implement cfi_def_cfa_register.

llvm-svn: 122612
---
 llvm/lib/MC/MCStreamer.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'llvm/lib/MC')

diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index f5e0d20e098..4d7d486ea91 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -186,6 +186,14 @@ bool MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
 
 bool MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
   EnsureValidFrame();
+  MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
+  MCSymbol *Label = getContext().CreateTempSymbol();
+  EmitLabel(Label);
+  MachineLocation Dest(Register);
+  MachineLocation Source(MachineLocation::VirtualFP);
+  MCCFIInstruction Instruction(Label, Dest, Source);
+  CurFrame->Instructions.push_back(Instruction);
+  return false;
   return false;
 }
 
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