NCG: Split up the native code generator into arch specific modules

  - nativeGen/Instruction defines a type class for a generic
    instruction set. Each of the instruction sets we have, 
    X86, PPC and SPARC are instances of it.
  
  - The register alloctors use this type class when they need
    info about a certain register or instruction, such as
    regUsage, mkSpillInstr, mkJumpInstr, patchRegs..
  
  - nativeGen/Platform defines some data types enumerating
    the architectures and operating systems supported by the 
    native code generator.
  
  - DynFlags now keeps track of the current build platform, and 
    the PositionIndependentCode module uses this to decide what
    to do instead of relying of #ifdefs.
  
  - It's not totally retargetable yet. Some info info about the
    build target is still hardwired, but I've tried to contain
    most of it to a single module, TargetRegs.
  
  - Moved the SPILL and RELOAD instructions into LiveInstr.
  
  - Reg and RegClass now have their own modules, and are shared
    across all architectures.

1 files changed, 1 insertions, 1 deletions

diff --git a/compiler/nativeGen/RegAlloc/Linear/Base.hs b/compiler/nativeGen/RegAlloc/Linear/Base.hs
index 60d0175c94..45fd640804 100644
--- a/compiler/nativeGen/RegAlloc/Linear/Base.hs
+++ b/compiler/nativeGen/RegAlloc/Linear/Base.hs
@@ -21,7 +21,7 @@ where
 import RegAlloc.Linear.FreeRegs
 import RegAlloc.Linear.StackMap
 import RegAlloc.Liveness
-import Regs
+import Reg
 
 import Outputable
 import Unique