add a statistic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31785 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCBranchSelector.cpp b/lib/Target/PowerPC/PPCBranchSelector.cpp
index 10efb9882a5e4da8eab6fcdc335a986260b4ede4..123edb781d9640dc3cc68bb6c87aac83f8b6374a 100644 (file)
--- a/lib/Target/PowerPC/PPCBranchSelector.cpp
+++ b/lib/Target/PowerPC/PPCBranchSelector.cpp
@@ -19,12 +19,16 @@
 #include "PPCInstrBuilder.h"
 #include "PPCInstrInfo.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/Support/Compiler.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetAsmInfo.h"
+#include "llvm/ADT/Statistic.h"
+#include "llvm/Support/Compiler.h"
 #include <map>
 using namespace llvm;
 
+static Statistic<> NumExpanded("ppc-branch-select",
+                               "Num branches expanded to long format");
+
 namespace {
   struct VISIBILITY_HIDDEN PPCBSel : public MachineFunctionPass {
     /// OffsetMap - Mapping between BB and byte offset from start of function.
@@ -131,6 +135,7 @@ bool PPCBSel::runOnMachineFunction(MachineFunction &Fn) {
           BuildMI(*MBB, MBBJ, Opcode, 2).addReg(CRReg).addMBB(trueMBB);
         } else {
           // Long branch, skip next branch instruction (i.e. $PC+8).
+          ++NumExpanded;
           BuildMI(*MBB, MBBJ, Inverted, 2).addReg(CRReg).addImm(2);
           BuildMI(*MBB, MBBJ, PPC::B, 1).addMBB(trueMBB);
         }