Codegen pass definition cleanup. No functionality.

Moving toward a uniform style of pass definition to allow easier target configuration.
Globally declare Pass ID.
Globally declare pass initializer.
Use INITIALIZE_PASS consistently.
Add a call to the initializer from CodeGen.cpp.
Remove redundant "createPass" functions and "getPassName" methods.

While cleaning up declarations, cleaned up comments (sorry for large diff).

llvm-svn: 150100

1 files changed, 2 insertions, 3 deletions

diff --git a/llvm/lib/CodeGen/IfConversion.cpp b/llvm/lib/CodeGen/IfConversion.cpp
index bbc0f180c0a..e05837618fc 100644
--- a/llvm/lib/CodeGen/IfConversion.cpp
+++ b/llvm/lib/CodeGen/IfConversion.cpp
@@ -170,7 +170,6 @@ namespace {
     }
 
     virtual bool runOnMachineFunction(MachineFunction &MF);
-    virtual const char *getPassName() const { return "If Converter"; }
 
   private:
     bool ReverseBranchCondition(BBInfo &BBI);
@@ -253,12 +252,12 @@ namespace {
   char IfConverter::ID = 0;
 }
 
+char &llvm::IfConverterID = IfConverter::ID;
+
 INITIALIZE_PASS_BEGIN(IfConverter, "if-converter", "If Converter", false, false)
 INITIALIZE_PASS_DEPENDENCY(MachineBranchProbabilityInfo)
 INITIALIZE_PASS_END(IfConverter, "if-converter", "If Converter", false, false)
 
-FunctionPass *llvm::createIfConverterPass() { return new IfConverter(); }
-
 bool IfConverter::runOnMachineFunction(MachineFunction &MF) {
   TLI = MF.getTarget().getTargetLowering();
   TII = MF.getTarget().getInstrInfo();