[Hexagon] Ignore DBG_VALUEs when counting instructions in hexagon-early-if

llvm-svn: 310524

2 files changed, 8 insertions, 5 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
index 7d0878815a1..fdf57a82cbd 100644
--- a/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonEarlyIfConv.cpp
@@ -155,9 +155,7 @@ namespace {
   public:
     static char ID;
 
-    HexagonEarlyIfConversion() : MachineFunctionPass(ID) {
-      initializeHexagonEarlyIfConversionPass(*PassRegistry::getPassRegistry());
-    }
+    HexagonEarlyIfConversion() : MachineFunctionPass(ID) {}
 
     StringRef getPassName() const override {
       return "Hexagon early if conversion";
@@ -227,7 +225,7 @@ namespace {
 
 char HexagonEarlyIfConversion::ID = 0;
 
-INITIALIZE_PASS(HexagonEarlyIfConversion, "hexagon-eif",
+INITIALIZE_PASS(HexagonEarlyIfConversion, "hexagon-early-if",
   "Hexagon early if conversion", false, false)
 
 bool HexagonEarlyIfConversion::isPreheader(const MachineBasicBlock *B) const {
@@ -539,7 +537,10 @@ bool HexagonEarlyIfConversion::isProfitable(const FlowPattern &FP) const {
   auto TotalCount = [] (const MachineBasicBlock *B, unsigned &Spare) {
     if (!B)
       return 0u;
-    unsigned T = std::distance(B->begin(), B->getFirstTerminator());
+    unsigned T = std::count_if(B->begin(), B->getFirstTerminator(),
+                               [](const MachineInstr &MI) {
+                                 return !MI.isDebugValue();
+                               });
     if (T < HEXAGON_PACKET_SIZE)
       Spare += HEXAGON_PACKET_SIZE-T;
     return T;
diff --git a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
index 543318c7a14..01634756d0a 100644
--- a/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonTargetMachine.cpp
@@ -109,6 +109,7 @@ SchedCustomRegistry("hexagon", "Run Hexagon's custom scheduler",
 
 namespace llvm {
   extern char &HexagonExpandCondsetsID;
+  void initializeHexagonEarlyIfConversionPass(PassRegistry&);
   void initializeHexagonExpandCondsetsPass(PassRegistry&);
   void initializeHexagonGenMuxPass(PassRegistry&);
   void initializeHexagonLoopIdiomRecognizePass(PassRegistry&);
@@ -163,6 +164,7 @@ extern "C" void LLVMInitializeHexagonTarget() {
   RegisterTargetMachine<HexagonTargetMachine> X(getTheHexagonTarget());
 
   PassRegistry &PR = *PassRegistry::getPassRegistry();
+  initializeHexagonEarlyIfConversionPass(PR);
   initializeHexagonGenMuxPass(PR);
   initializeHexagonLoopIdiomRecognizePass(PR);
   initializeHexagonNewValueJumpPass(PR);