[llvm-commits] [llvm] r94240 - in /llvm/trunk/lib/CodeGen: LiveIntervalAnalysis.cpp SlotIndexes.cpp

[Dale Johannesen]

Author: johannes
Date: Fri Jan 22 16:38:21 2010
New Revision: 94240

URL: http://llvm.org/viewvc/llvm-project?rev=94240&view=rev
Log:
Ignore DEBUG_VALUE when building live intervals;
this makes the code work transparently the same
whether they're there or not.


Modified:
    llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
    llvm/trunk/lib/CodeGen/SlotIndexes.cpp

Modified: llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp?rev=94240&r1=94239&r2=94240&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp (original)
+++ llvm/trunk/lib/CodeGen/LiveIntervalAnalysis.cpp Fri Jan 22 16:38:21 2010
@@ -140,7 +140,10 @@
        << ":\t\t# derived from " << mbbi->getName() << "\n";
     for (MachineBasicBlock::iterator mii = mbbi->begin(),
            mie = mbbi->end(); mii != mie; ++mii) {
-      OS << getInstructionIndex(mii) << '\t' << *mii;
+      if (mii->getOpcode()==TargetInstrInfo::DEBUG_VALUE)
+        OS << SlotIndex::getEmptyKey() << '\t' << *mii;
+      else
+        OS << getInstructionIndex(mii) << '\t' << *mii;
     }
   }
 }
@@ -672,8 +675,6 @@
     SlotIndex MIIndex = getMBBStartIdx(MBB);
     DEBUG(dbgs() << MBB->getName() << ":\n");
 
-    MachineBasicBlock::iterator MI = MBB->begin(), miEnd = MBB->end();
-
     // Create intervals for live-ins to this BB first.
     for (MachineBasicBlock::const_livein_iterator LI = MBB->livein_begin(),
            LE = MBB->livein_end(); LI != LE; ++LI) {
@@ -689,8 +690,11 @@
     if (getInstructionFromIndex(MIIndex) == 0)
       MIIndex = indexes_->getNextNonNullIndex(MIIndex);
     
-    for (; MI != miEnd; ++MI) {
+    for (MachineBasicBlock::iterator MI = MBB->begin(), miEnd = MBB->end();
+         MI != miEnd; ++MI) {
       DEBUG(dbgs() << MIIndex << "\t" << *MI);
+      if (MI->getOpcode()==TargetInstrInfo::DEBUG_VALUE)
+        continue;
 
       // Handle defs.
       for (int i = MI->getNumOperands() - 1; i >= 0; --i) {

Modified: llvm/trunk/lib/CodeGen/SlotIndexes.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SlotIndexes.cpp?rev=94240&r1=94239&r2=94240&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SlotIndexes.cpp (original)
+++ llvm/trunk/lib/CodeGen/SlotIndexes.cpp Fri Jan 22 16:38:21 2010
@@ -14,6 +14,7 @@
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/raw_ostream.h"
 #include "llvm/Support/ManagedStatic.h"
+#include "llvm/Target/TargetInstrInfo.h"
 
 using namespace llvm;
 
@@ -107,6 +108,8 @@
     for (MachineBasicBlock::iterator miItr = mbb->begin(), miEnd = mbb->end();
          miItr != miEnd; ++miItr) {
       MachineInstr *mi = &*miItr;
+      if (mi->getOpcode()==TargetInstrInfo::DEBUG_VALUE)
+        continue;
 
       if (miItr == mbb->getFirstTerminator()) {
         push_back(createEntry(0, index));