[DebugInfo] Examine all uses of isDebugValue() for debug instructions.

Because we create a new kind of debug instruction, DBG_LABEL, we need to
check all passes which use isDebugValue() to check MachineInstr is debug
instruction or not. When expelling debug instructions, we should expel
both DBG_VALUE and DBG_LABEL. So, I create a new function,
isDebugInstr(), in MachineInstr to check whether the MachineInstr is
debug instruction or not.

This patch has no new test case. I have run regression test and there is
no difference in regression test.

Differential Revision: https://reviews.llvm.org/D45342

Patch by Hsiangkai Wang.

llvm-svn: 331844

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/LiveIntervals.cpp b/llvm/lib/CodeGen/LiveIntervals.cpp
index 6f992666c56..ed0a62b99f2 100644
--- a/llvm/lib/CodeGen/LiveIntervals.cpp
+++ b/llvm/lib/CodeGen/LiveIntervals.cpp
@@ -1391,7 +1391,7 @@ private:
 
     MachineBasicBlock::iterator Begin = MBB->begin();
     while (MII != Begin) {
-      if ((--MII)->isDebugValue())
+      if ((--MII)->isDebugInstr())
         continue;
       SlotIndex Idx = Indexes->getInstructionIndex(*MII);
 
@@ -1453,7 +1453,7 @@ void LiveIntervals::repairOldRegInRange(const MachineBasicBlock::iterator Begin,
   for (MachineBasicBlock::iterator I = End; I != Begin;) {
     --I;
     MachineInstr &MI = *I;
-    if (MI.isDebugValue())
+    if (MI.isDebugInstr())
       continue;
 
     SlotIndex instrIdx = getInstructionIndex(MI);
@@ -1550,7 +1550,7 @@ LiveIntervals::repairIntervalsInRange(MachineBasicBlock *MBB,
   for (MachineBasicBlock::iterator I = End; I != Begin;) {
     --I;
     MachineInstr &MI = *I;
-    if (MI.isDebugValue())
+    if (MI.isDebugInstr())
       continue;
     for (MachineInstr::const_mop_iterator MOI = MI.operands_begin(),
                                           MOE = MI.operands_end();