X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Fcompiler%2Fmain%2FDriverPhases.hs;h=37d73d3d6d0e0f0c57a32f882cc65d117ef98b3e;hb=79a733f5677ac79bd7e56c87dc5a1c3fa86b780f;hp=f212947857c6a1c3f3e84bc653359cd590051360;hpb=6f57245bd52f902080e003bffe0d511f89b15592;p=ghc-hetmet.git

diff --git a/ghc/compiler/main/DriverPhases.hs b/ghc/compiler/main/DriverPhases.hs
index f212947..37d73d3 100644
--- a/ghc/compiler/main/DriverPhases.hs
+++ b/ghc/compiler/main/DriverPhases.hs
@@ -1,5 +1,5 @@
 -----------------------------------------------------------------------------
--- $Id: DriverPhases.hs,v 1.15 2002/01/04 16:02:04 simonmar Exp $
+-- $Id: DriverPhases.hs,v 1.31 2005/01/18 13:51:28 simonmar Exp $
 --
 -- GHC Driver
 --
@@ -7,17 +7,22 @@
 --
 -----------------------------------------------------------------------------
 
-#include "../includes/config.h"
+#include "../includes/ghcconfig.h"
 
 module DriverPhases (
    Phase(..),
+   happensBefore,
    startPhase,		-- :: String -> Phase
    phaseInputExt, 	-- :: Phase -> String
 
-   haskellish_file, haskellish_suffix,
-   haskellish_src_file, haskellish_src_suffix,
-   objish_file, objish_suffix,
-   cish_file, cish_suffix
+   isHaskellishFilename, 
+   isHaskellSrcFilename,
+   isObjectFilename,
+   isCishFilename,
+   isExtCoreFilename,
+   isDynLibFilename,
+   isHaskellUserSrcFilename,
+   isSourceFilename         -- :: FilePath -> Bool
  ) where
 
 import DriverUtil
@@ -38,8 +43,7 @@ import DriverUtil
 -}
 
 data Phase 
-	= MkDependHS	-- haskell dependency generation
-	| Unlit
+	= Unlit
 	| Cpp
 	| HsPp
 	| Hsc
@@ -50,18 +54,35 @@ data Phase
 	| SplitAs
 	| As
 	| Ln
+	| CmmCpp	-- pre-process Cmm source
+	| Cmm		-- parse & compile Cmm code
 #ifdef ILX
         | Ilx2Il
 	| Ilasm
 #endif
   deriving (Eq, Show)
 
+-- Partial ordering on phases: we want to know which phases will occur before 
+-- which others.  This is used for sanity checking, to ensure that the
+-- pipeline will stop at some point (see DriverPipeline.runPipeline).
+x `happensBefore` y 
+	| x `elem` haskell_pipe = y `elem` tail (dropWhile (/= x) haskell_pipe)
+	| x `elem` cmm_pipe     = y `elem` tail (dropWhile (/= x) cmm_pipe)
+	| x `elem` c_pipe       = y `elem` tail (dropWhile (/= x) c_pipe)
+	| otherwise = False
+
+haskell_post_hsc = [HCc,Mangle,SplitMangle,As,SplitAs,Ln]
+haskell_pipe = Unlit : Cpp : HsPp : Hsc : haskell_post_hsc
+cmm_pipe     = CmmCpp : Cmm : haskell_post_hsc
+c_pipe       = [Cc,As,Ln]
+
 -- the first compilation phase for a given file is determined
 -- by its suffix.
 startPhase "lhs"   = Unlit
 startPhase "hs"    = Cpp
 startPhase "hscpp" = HsPp
 startPhase "hspp"  = Hsc
+startPhase "hcr"   = Hsc
 startPhase "hc"    = HCc
 startPhase "c"     = Cc
 startPhase "cpp"   = Cc
@@ -72,10 +93,13 @@ startPhase "raw_s" = Mangle
 startPhase "s"     = As
 startPhase "S"     = As
 startPhase "o"     = Ln
+startPhase "cmm"   = CmmCpp
+startPhase "cmmcpp" = Cmm
 startPhase _       = Ln	   -- all unknown file types
 
--- the output suffix for a given phase is uniquely determined by
--- the input requirements of the next phase.
+-- This is used to determine the extension for the output from the
+-- current phase (if it generates a new file).  The extension depends
+-- on the next phase in the pipeline.
 phaseInputExt Unlit       = "lhs"
 phaseInputExt Cpp         = "lpp"	-- intermediate only
 phaseInputExt HsPp        = "hscpp"
@@ -87,23 +111,44 @@ phaseInputExt SplitMangle = "split_s"	-- not really generated
 phaseInputExt As          = "s"
 phaseInputExt SplitAs     = "split_s"   -- not really generated
 phaseInputExt Ln          = "o"
-phaseInputExt MkDependHS  = "dep"
+phaseInputExt CmmCpp	  = "cmm"
+phaseInputExt Cmm	  = "cmmcpp"
 #ifdef ILX
 phaseInputExt Ilx2Il      = "ilx"
 phaseInputExt Ilasm       = "il"
 #endif
 
-haskellish_suffix     = (`elem` [ "hs", "hspp", "hscpp", "lhs", "hc", "raw_s" ])
-haskellish_src_suffix = (`elem` [ "hs", "hspp", "hscpp", "lhs" ])
-cish_suffix           = (`elem` [ "c", "cpp", "C", "cc", "cxx", "s", "S" ])
+haskellish_suffixes          = [ "hs", "lhs", "hspp", "hscpp", "hcr", "hc", "raw_s", "cmm" ]
+haskellish_src_suffixes      = [ "hs", "lhs", "hspp", "hscpp", "hcr", "cmm" ]
+cish_suffixes                = [ "c", "cpp", "C", "cc", "cxx", "s", "S" ]
+extcoreish_suffixes          = [ "hcr" ]
+haskellish_user_src_suffixes = [ "hs", "lhs" ]
 
+-- Use the appropriate suffix for the system on which 
+-- the GHC-compiled code will run
 #if mingw32_TARGET_OS || cygwin32_TARGET_OS
-objish_suffix     = (`elem` [ "o", "O", "obj", "OBJ" ])
+objish_suffixes     = [ "o", "O", "obj", "OBJ" ]
+#else
+objish_suffixes     = [ "o" ]
+#endif
+
+#ifdef mingw32_TARGET_OS
+dynlib_suffixes = ["dll", "DLL"]
+#elif defined(darwin_TARGET_OS)
+dynlib_suffixes = ["dylib"]
 #else
-objish_suffix     = (`elem` [ "o" ])
+dynlib_suffixes = ["so"]
 #endif
 
-haskellish_file     = haskellish_suffix     . getFileSuffix
-haskellish_src_file = haskellish_src_suffix . getFileSuffix
-cish_file           = cish_suffix           . getFileSuffix
-objish_file         = objish_suffix         . getFileSuffix
+isHaskellishFilename     f = getFileSuffix f `elem` haskellish_suffixes
+isHaskellSrcFilename     f = getFileSuffix f `elem` haskellish_src_suffixes
+isCishFilename           f = getFileSuffix f `elem` cish_suffixes
+isExtCoreFilename        f = getFileSuffix f `elem` extcoreish_suffixes
+isObjectFilename         f = getFileSuffix f `elem` objish_suffixes
+isHaskellUserSrcFilename f = getFileSuffix f `elem` haskellish_user_src_suffixes
+isDynLibFilename	 f = getFileSuffix f `elem` dynlib_suffixes
+
+isSourceFilename :: FilePath -> Bool
+isSourceFilename f  =
+   isHaskellishFilename f ||
+   isCishFilename f