[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, 1 insertions, 1 deletions

diff --git a/llvm/lib/Target/Hexagon/RDFGraph.cpp b/llvm/lib/Target/Hexagon/RDFGraph.cpp
index ceb4887a36d..3d1ec31dada 100644
--- a/llvm/lib/Target/Hexagon/RDFGraph.cpp
+++ b/llvm/lib/Target/Hexagon/RDFGraph.cpp
@@ -893,7 +893,7 @@ void DataFlowGraph::build(unsigned Options) {
     NodeAddr<BlockNode*> BA = newBlock(Func, &B);
     BlockNodes.insert(std::make_pair(&B, BA));
     for (MachineInstr &I : B) {
-      if (I.isDebugValue())
+      if (I.isDebugInstr())
         continue;
       buildStmt(BA, I);
     }