Emit DBG_VALUE instructions from LiveDebugVariables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120842 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocLinearScan.cpp b/lib/CodeGen/RegAllocLinearScan.cpp
index ac5143b..0875257 100644
--- a/lib/CodeGen/RegAllocLinearScan.cpp
+++ b/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 @@
struct RALinScan : public MachineFunctionPass {
static char ID;
RALinScan() : MachineFunctionPass(ID) {
+ initializeLiveDebugVariablesPass(*PassRegistry::getPassRegistry());
initializeLiveIntervalsPass(*PassRegistry::getPassRegistry());
initializeStrongPHIEliminationPass(*PassRegistry::getPassRegistry());
initializeRegisterCoalescerAnalysisGroup(
@@ -212,6 +214,8 @@
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 @@
// 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();