X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FCodeGen%2FPasses.cpp;h=6742146a3833aa5a63c469d661e3879230114e99;hb=a9407f593778c3eff02dbb1fa11129865a59c6d3;hp=a896f83526e2dfeb590caebff63e41e4691774c6;hpb=9ff542f2cce5bf7bf3cf9f692cf3ec0690ad2b3b;p=oota-llvm.git

diff --git a/lib/CodeGen/Passes.cpp b/lib/CodeGen/Passes.cpp
index a896f83526e..6742146a383 100644
--- a/lib/CodeGen/Passes.cpp
+++ b/lib/CodeGen/Passes.cpp
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -12,31 +12,45 @@
 //
 //===---------------------------------------------------------------------===//
 
-#include "llvm/CodeGen/MachinePassRegistry.h"
+#include "llvm/CodeGen/RegAllocRegistry.h"
 #include "llvm/CodeGen/Passes.h"
-#include "llvm/Support/CommandLine.h"
-#include <iostream>
 
 using namespace llvm;
 
+//===---------------------------------------------------------------------===//
+///
+/// RegisterRegAlloc class - Track the registration of register allocators.
+///
+//===---------------------------------------------------------------------===//
+MachinePassRegistry RegisterRegAlloc::Registry;
+
+
+//===---------------------------------------------------------------------===//
+///
+/// RegAlloc command line options.
+///
+//===---------------------------------------------------------------------===//
 namespace {
-  cl::opt<const char *, false, RegisterPassParser<RegisterRegAlloc> >
+  cl::opt<RegisterRegAlloc::FunctionPassCtor, false,
+          RegisterPassParser<RegisterRegAlloc> >
   RegAlloc("regalloc",
-           cl::init("linearscan"),
+           cl::init(&createLinearScanRegisterAllocator),
            cl::desc("Register allocator to use: (default = linearscan)")); 
 }
 
+
+//===---------------------------------------------------------------------===//
+///
+/// createRegisterAllocator - choose the appropriate register allocator.
+///
+//===---------------------------------------------------------------------===//
 FunctionPass *llvm::createRegisterAllocator() {
   RegisterRegAlloc::FunctionPassCtor Ctor = RegisterRegAlloc::getDefault();
   
   if (!Ctor) {
-    Ctor = RegisterRegAlloc::FindCtor(RegAlloc);
-    assert(Ctor && "No register allocator found");
-    if (!Ctor) Ctor = RegisterRegAlloc::FirstCtor();
-    RegisterRegAlloc::setDefault(Ctor);
+    Ctor = RegAlloc;
+    RegisterRegAlloc::setDefault(RegAlloc);
   }
   
-  assert(Ctor && "No register allocator found");
-  
   return Ctor();
 }