[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, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/ReachingDefAnalysis.cpp b/llvm/lib/CodeGen/ReachingDefAnalysis.cpp
index a227562..31eb8c9 100644
--- a/llvm/lib/CodeGen/ReachingDefAnalysis.cpp
+++ b/llvm/lib/CodeGen/ReachingDefAnalysis.cpp
@@ -93,7 +93,7 @@ void ReachingDefAnalysis::leaveBasicBlock(
 }
 
 void ReachingDefAnalysis::processDefs(MachineInstr *MI) {
-  assert(!MI->isDebugValue() && "Won't process debug values");
+  assert(!MI->isDebugInstr() && "Won't process debug instructions");
 
   unsigned MBBNumber = MI->getParent()->getNumber();
   assert(MBBNumber < MBBReachingDefs.size() &&
@@ -125,7 +125,7 @@ void ReachingDefAnalysis::processBasicBlock(
     const LoopTraversal::TraversedMBBInfo &TraversedMBB) {
   enterBasicBlock(TraversedMBB);
   for (MachineInstr &MI : *TraversedMBB.MBB) {
-    if (!MI.isDebugValue())
+    if (!MI.isDebugInstr())
       processDefs(&MI);
   }
   leaveBasicBlock(TraversedMBB);