From afc2bc2c04e42fcc16a9f964d0a13b7dbc05c3b0 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <stoklund@2pi.dk>
Date: Fri, 3 Dec 2010 21:47:10 +0000
Subject: Emit DBG_VALUE instructions from LiveDebugVariables.

llvm-svn: 120842
---
 llvm/lib/CodeGen/RegAllocLinearScan.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'llvm/lib/CodeGen/RegAllocLinearScan.cpp')

diff --git a/llvm/lib/CodeGen/RegAllocLinearScan.cpp b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
index ac5143b..0875257 100644
--- a/llvm/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/llvm/lib/CodeGen/RegAllocLinearScan.cpp
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #define DEBUG_TYPE "regalloc"
+#include "LiveDebugVariables.h"
 #include "VirtRegMap.h"
 #include "VirtRegRewriter.h"
 #include "Spiller.h"
@@ -91,6 +92,7 @@ namespace {
   struct RALinScan : public MachineFunctionPass {
     static char ID;
     RALinScan() : MachineFunctionPass(ID) {
+      initializeLiveDebugVariablesPass(*PassRegistry::getPassRegistry());
       initializeLiveIntervalsPass(*PassRegistry::getPassRegistry());
       initializeStrongPHIEliminationPass(*PassRegistry::getPassRegistry());
       initializeRegisterCoalescerAnalysisGroup(
@@ -212,6 +214,8 @@ namespace {
       AU.addPreserved<MachineLoopInfo>();
       AU.addRequired<VirtRegMap>();
       AU.addPreserved<VirtRegMap>();
+      AU.addRequired<LiveDebugVariables>();
+      AU.addPreserved<LiveDebugVariables>();
       AU.addRequiredID(MachineDominatorsID);
       AU.addPreservedID(MachineDominatorsID);
       MachineFunctionPass::getAnalysisUsage(AU);
@@ -532,6 +536,9 @@ bool RALinScan::runOnMachineFunction(MachineFunction &fn) {
   // Rewrite spill code and update the PhysRegsUsed set.
   rewriter_->runOnMachineFunction(*mf_, *vrm_, li_);
 
+  // Write out new DBG_VALUE instructions.
+  getAnalysis<LiveDebugVariables>().emitDebugValues(vrm_);
+
   assert(unhandled_.empty() && "Unhandled live intervals remain!");
 
   finalizeRegUses();
-- 
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