[llvm-commits] [llvm] r127959 - in /llvm/trunk/lib/CodeGen: InlineSpiller.cpp RegAllocGreedy.cpp

[Jakob Stoklund Olesen]

Author: stoklund
Date: Sat Mar 19 18:02:47 2011
New Revision: 127959

URL: http://llvm.org/viewvc/llvm-project?rev=127959&view=rev
Log:
Add debug output.

Modified:
    llvm/trunk/lib/CodeGen/InlineSpiller.cpp
    llvm/trunk/lib/CodeGen/RegAllocGreedy.cpp

Modified: llvm/trunk/lib/CodeGen/InlineSpiller.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/InlineSpiller.cpp?rev=127959&r1=127958&r2=127959&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/InlineSpiller.cpp (original)
+++ llvm/trunk/lib/CodeGen/InlineSpiller.cpp Sat Mar 19 18:02:47 2011
@@ -435,6 +435,8 @@
   LiveInterval &OrigLI = LIS.getInterval(Original);
   VNInfo *OrigVNI = OrigLI.getVNInfoAt(Idx);
   StackInt.MergeValueInAsValue(OrigLI, OrigVNI, StackInt.getValNumInfo(0));
+  DEBUG(dbgs() << "\tmerged orig valno " << OrigVNI->id << ": "
+               << StackInt << '\n');
 
   // Already spilled everywhere.
   if (SVI.AllDefsAreReloads)
@@ -480,6 +482,7 @@
     // Add all of VNI's live range to StackInt.
     LiveInterval &LI = LIS.getInterval(Reg);
     StackInt.MergeValueInAsValue(LI, VNI, StackInt.getValNumInfo(0));
+    DEBUG(dbgs() << "Merged to stack int: " << StackInt << '\n');
 
     // Find all spills and copies of VNI.
     for (MachineRegisterInfo::use_nodbg_iterator UI = MRI.use_nodbg_begin(Reg);
@@ -874,6 +877,7 @@
   for (unsigned i = 0, e = RegsToSpill.size(); i != e; ++i)
     stacklvr.MergeRangesInAsValue(LIS.getInterval(RegsToSpill[i]),
                                   stacklvr.getValNumInfo(0));
+  DEBUG(dbgs() << "Merged spilled regs: " << stacklvr << '\n');
 
   // Spill around uses of all RegsToSpill.
   for (unsigned i = 0, e = RegsToSpill.size(); i != e; ++i)

Modified: llvm/trunk/lib/CodeGen/RegAllocGreedy.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/RegAllocGreedy.cpp?rev=127959&r1=127958&r2=127959&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/RegAllocGreedy.cpp (original)
+++ llvm/trunk/lib/CodeGen/RegAllocGreedy.cpp Sat Mar 19 18:02:47 2011
@@ -1265,6 +1265,7 @@
   // Wait until the second time, when all smaller ranges have been allocated.
   // This gives a better picture of the interference to split around.
   if (Stage == RS_Original) {
+    DEBUG(dbgs() << "wait for second round\n");
     NewVRegs.push_back(&VirtReg);
     return 0;
   }