1 //===-- Passes.cpp - Target independent code generation passes ------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines interfaces to access the target independent code
11 // generation passes provided by the LLVM backend.
13 //===---------------------------------------------------------------------===//
15 #include "llvm/CodeGen/RegAllocRegistry.h"
16 #include "llvm/CodeGen/Passes.h"
20 //===---------------------------------------------------------------------===//
22 /// RegisterRegAlloc class - Track the registration of register allocators.
24 //===---------------------------------------------------------------------===//
25 MachinePassRegistry RegisterRegAlloc::Registry;
28 //===---------------------------------------------------------------------===//
30 /// RegAlloc command line options.
32 //===---------------------------------------------------------------------===//
33 static cl::opt<RegisterRegAlloc::FunctionPassCtor, false,
34 RegisterPassParser<RegisterRegAlloc> >
36 cl::init(&createLinearScanRegisterAllocator),
37 cl::desc("Register allocator to use (default=linearscan)"));
40 //===---------------------------------------------------------------------===//
42 /// createRegisterAllocator - choose the appropriate register allocator.
44 //===---------------------------------------------------------------------===//
45 FunctionPass *llvm::createRegisterAllocator() {
46 RegisterRegAlloc::FunctionPassCtor Ctor = RegisterRegAlloc::getDefault();
50 RegisterRegAlloc::setDefault(RegAlloc);