[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/RegisterPressure.cpp b/llvm/lib/CodeGen/RegisterPressure.cpp
index 3dbdd937b39..51414de518f 100644
--- a/llvm/lib/CodeGen/RegisterPressure.cpp
+++ b/llvm/lib/CodeGen/RegisterPressure.cpp
@@ -748,7 +748,7 @@ void RegPressureTracker::bumpDeadDefs(ArrayRef<RegisterMaskPair> DeadDefs) {
 /// instruction independent of liveness.
 void RegPressureTracker::recede(const RegisterOperands &RegOpers,
                                 SmallVectorImpl<RegisterMaskPair> *LiveUses) {
-  assert(!CurrPos->isDebugValue());
+  assert(!CurrPos->isDebugInstr());
 
   // Boost pressure for all dead defs together.
   bumpDeadDefs(RegOpers.DeadDefs);
@@ -1019,7 +1019,7 @@ static void computeMaxPressureDelta(ArrayRef<unsigned> OldMaxPressureVec,
 /// This is intended for speculative queries. It leaves pressure inconsistent
 /// with the current position, so must be restored by the caller.
 void RegPressureTracker::bumpUpwardPressure(const MachineInstr *MI) {
-  assert(!MI->isDebugValue() && "Expect a nondebug instruction.");
+  assert(!MI->isDebugInstr() && "Expect a nondebug instruction.");
 
   SlotIndex SlotIdx;
   if (RequireIntervals)
@@ -1260,7 +1260,7 @@ LaneBitmask RegPressureTracker::getLiveThroughAt(unsigned RegUnit,
 /// This is intended for speculative queries. It leaves pressure inconsistent
 /// with the current position, so must be restored by the caller.
 void RegPressureTracker::bumpDownwardPressure(const MachineInstr *MI) {
-  assert(!MI->isDebugValue() && "Expect a nondebug instruction.");
+  assert(!MI->isDebugInstr() && "Expect a nondebug instruction.");
 
   SlotIndex SlotIdx;
   if (RequireIntervals)