CodeGen: Rename DEBUG_TYPE to match passnames

Rename the DEBUG_TYPE to match the names of corresponding passes where
it makes sense. Also establish the pattern of simply referencing
DEBUG_TYPE instead of repeating the passname where possible.

llvm-svn: 303921
diff --git a/llvm/lib/CodeGen/ProcessImplicitDefs.cpp b/llvm/lib/CodeGen/ProcessImplicitDefs.cpp
index d27ea2f..0118580 100644
--- a/llvm/lib/CodeGen/ProcessImplicitDefs.cpp
+++ b/llvm/lib/CodeGen/ProcessImplicitDefs.cpp
@@ -20,7 +20,7 @@
 
 using namespace llvm;
 
-#define DEBUG_TYPE "processimplicitdefs"
+#define DEBUG_TYPE "processimpdefs"
 
 namespace {
 /// Process IMPLICIT_DEF instructions and make sure there is one implicit_def
@@ -51,9 +51,7 @@
 char ProcessImplicitDefs::ID = 0;
 char &llvm::ProcessImplicitDefsID = ProcessImplicitDefs::ID;
 
-INITIALIZE_PASS_BEGIN(ProcessImplicitDefs, "processimpdefs",
-                "Process Implicit Definitions", false, false)
-INITIALIZE_PASS_END(ProcessImplicitDefs, "processimpdefs",
+INITIALIZE_PASS(ProcessImplicitDefs, DEBUG_TYPE,
                 "Process Implicit Definitions", false, false)
 
 void ProcessImplicitDefs::getAnalysisUsage(AnalysisUsage &AU) const {