[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, 6 insertions, 6 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
index 78e82579c47..1ec1ce01336 100644
--- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
@@ -134,7 +134,7 @@ static unsigned nonDbgMICount(MachineBasicBlock::const_instr_iterator MIB,
                               MachineBasicBlock::const_instr_iterator MIE) {
   unsigned Count = 0;
   for (; MIB != MIE; ++MIB) {
-    if (!MIB->isDebugValue())
+    if (!MIB->isDebugInstr())
       ++Count;
   }
   return Count;
@@ -419,7 +419,7 @@ bool HexagonInstrInfo::analyzeBranch(MachineBasicBlock &MBB,
   I = MBB.instr_end();
   --I;
 
-  while (I->isDebugValue()) {
+  while (I->isDebugInstr()) {
     if (I == MBB.instr_begin())
       return false;
     --I;
@@ -562,7 +562,7 @@ unsigned HexagonInstrInfo::removeBranch(MachineBasicBlock &MBB,
   unsigned Count = 0;
   while (I != MBB.begin()) {
     --I;
-    if (I->isDebugValue())
+    if (I->isDebugInstr())
       continue;
     // Only removing branches from end of MBB.
     if (!I->isBranch())
@@ -1626,7 +1626,7 @@ bool HexagonInstrInfo::isSchedulingBoundary(const MachineInstr &MI,
   // considered a scheduling hazard, which is wrong. It should be the actual
   // instruction preceding the dbg_value instruction(s), just like it is
   // when debug info is not present.
-  if (MI.isDebugValue())
+  if (MI.isDebugInstr())
     return false;
 
   // Throwing call is a boundary.
@@ -3164,7 +3164,7 @@ SmallVector<MachineInstr*, 2> HexagonInstrInfo::getBranchingInstrs(
   I = MBB.instr_end();
   --I;
 
-  while (I->isDebugValue()) {
+  while (I->isDebugInstr()) {
     if (I == MBB.instr_begin())
       return Jumpers;
     --I;
@@ -4201,7 +4201,7 @@ short HexagonInstrInfo::getRegForm(const MachineInstr &MI) const {
 // use a constant extender, which requires another 4 bytes.
 // For debug instructions and prolog labels, return 0.
 unsigned HexagonInstrInfo::getSize(const MachineInstr &MI) const {
-  if (MI.isDebugValue() || MI.isPosition())
+  if (MI.isDebugInstr() || MI.isPosition())
     return 0;
 
   unsigned Size = MI.getDesc().getSize();