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View of /branches/vis15/src/compiler/target-cpu/gen.sml

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Revision 3906 - (download) (annotate)
Mon May 23 22:09:41 2016 UTC (3 years ago) by jhr
File size: 7804 byte(s)
working on merge: code generation
(* gen.sml
 *
 * Code generation for the sequential and parallel targets.
 *
 * COPYRIGHT (c) 2016 The Diderot Project (http://diderot-language.cs.uchicago.edu)
 * All rights reserved.
 *)

structure Gen : sig

    val exec : TargetSpec.t * TreeIR.program -> unit

    val library : TargetSpec.t * TreeIR.program -> unit

  end = struct

    structure IR = TreeIR
    structure CL = CLang
    structure Env = CodeGenEnv
    structure Out = CodeOutput
    structure RN = CxxNames

    val openCxxOut = Out.openOut {ext = "cxx", ppDecl = PrintAsCxx.output}

  (* create the target-specific substitution list *)
    fun mkSubs (spec, IR.Strand{name, ...}) = [
	    ("CFILE",			OS.Path.joinBaseExt{base= #outBase spec, ext= SOME "c"}),
	    ("CXXFILE",			OS.Path.joinBaseExt{base= #outBase spec, ext= SOME "cxx"}),
	    ("HDRFILE",			OS.Path.joinBaseExt{base= #outBase spec, ext= SOME "h"}),
	    ("PREFIX",			#namespace spec),
	    ("SRCFILE",			#srcFile spec),
	    ("PROG_NAME",		#outBase spec),
	    ("STRAND",			Atom.toString name),
	    ("STRANDTY",		Atom.toString name ^ "_strand"),
	    ("DIDEROTC_CMD",		#diderotc spec),
	    ("DIDEROTC_ARGV",		String.concatWith " " (#argv spec)),
	    ("DIDEROTC_VERSION",	#version spec),
	    ("DIDEROT_FLOAT_PRECISION",	TargetSpec.floatPrecisionDef spec),
	    ("DIDEROT_INT_PRECISION",	TargetSpec.intPrecisionDef spec),
	    ("DIDEROT_TARGET",		TargetSpec.targetDef spec)
	  ]

    fun condCons (true, x, xs) = x::xs
      | condCons (false, _, xs) = xs

    fun verbFrag (spec, parFrag, seqFrag, subs) =
	  CL.verbatimDcl [if (TargetSpec.isParallel spec) then parFrag else seqFrag] subs

    fun runFrag (false, spec, subs) =
	  verbFrag (spec, ParRunFrag.text, SeqRunFrag.text, subs)
      | runFrag (true, spec, subs) = 
	  verbFrag (spec, ParRunNoBSPFrag.text, SeqRunNoBSPFrag.text, subs)

    fun compile (spec : TargetSpec.t, basename) = let
	(* generate the C compiler flags *)
	  val cflags = ["-I" ^ Paths.diderotInclude(), "-I" ^ Paths.teemInclude()]
	  val cflags = condCons (TargetSpec.isParallel spec, #pthread Paths.cflags, cflags)
	  val cflags = if #debug spec
		then #debug Paths.cflags :: cflags
		else #ndebug Paths.cflags :: cflags
	  val cflags = #base Paths.cflags :: cflags
	  in
	    RunCC.compile (basename, cflags)
	  end

    fun ldFlags (spec : TargetSpec.t) = if #exec spec
	  then let
	    val extraLibs = condCons (TargetSpec.isParallel spec, #pthread Paths.extraLibs, [])
	    val extraLibs = Paths.teemLinkFlags() @ #base Paths.extraLibs :: extraLibs
	    val rtLib = TargetSpec.runtimeLibName spec
	    in
	      condCons (TargetSpec.isParallel spec, #pthread Paths.cflags, rtLib :: extraLibs)
	    end
	  else [TargetSpec.runtimeLibName spec]

(********************
      (* generate source code that is common to both libraries and standalone executables *)
        fun outputSrc (out, prog, strand, substitutions, genInputCode) = let
              val Prog{props, globals, topDecls, nAxes, initially, ...} = prog
            (* does the program require barrier synchronization to implement BSP semantics? *)
              val noBSP = Properties.noBSP props
              val Strand{output, ...} = strand
              val outputs = GenOutput.gen (props, !nAxes) output
              fun ppDecl dcl = PrintAsC.output(#ppStrm out, dcl)
              in
                if (TargetSpec.isParallel spec)
                  then ppDecl (CL.verbatimDcl [CHeadParExtraFrag.text] substitutions)
                  else ();
                if Properties.dualState props
                  then ppDecl (CL.D_Verbatim ["#define DIDEROT_DUAL_STATE\n"])
                  else ();
                if not(#hasGlobals props)
                  then ppDecl (CL.D_Verbatim ["#define DIDEROT_NO_GLOBALS\n"])
                  else ();
                if not(#hasInputs props)
                  then ppDecl (CL.D_Verbatim ["#define DIDEROT_NO_INPUTS\n"])
                  else ();
                List.app ppDecl (genGlobalStruct (props, !globals));
                ppDecl (genWorldStruct(prog, strand));
                List.app ppDecl (genInputCode());
                List.app ppDecl (!topDecls);
                List.app ppDecl (genStrand strand);
                List.app ppDecl outputs;
                ppStrandTable (out, [strand]);
                ppDecl (CL.verbatimDcl [InitFrag.text] substitutions);
                ppDecl (CL.verbatimDcl [AllocFrag.text] substitutions);
                ppDecl (!initially);
                ppDecl (runFrag (noBSP, props, substitutions));
                ppDecl (CL.verbatimDcl [ShutdownFrag.text] substitutions)
              end

        fun outputLibSrc (baseName, prog as Prog{props, inputs, strands, ...}) = let
              val [strand] = AtomTable.listItems strands
              val substitutions = mkSubs (props, strand)
            (* output to C file *)
              val out = openOut baseName
              fun ppDecl dcl = PrintAsC.output(#ppStrm out, dcl)
              in
                ppDecl (CL.verbatimDcl [LibHdrFrag.text] substitutions);
                List.app ppDecl (GenInputs.genDefinedInpStruct (props, !inputs));
                outputSrc (out, prog, strand, substitutions,
                  fn () => GenInputs.genInputFuns(props, !inputs));
                ppDecl (CL.verbatimDcl [CBodyFrag.text] substitutions);
                closeOut out
              end

        fun generateLib (prog as Prog{props, inputs, strands, ...}) = let
              val {outDir, outBase, exec, double, debug, ...} = props
              val basename = OS.Path.joinDirFile{dir=outDir, file=outBase}
              val [Strand{state, output, ...}] = AtomTable.listItems strands
              in
              (* generate the library .h file *)
                GenLibraryInterface.gen {
                    props = props,
                    rt = if TargetSpec.isParallel spec
                      then SOME LibInterfaceParFrag.text
                      else NONE,
                    inputs = !inputs,
                    outputs = output
                  };
              (* *)
                outputLibSrc (basename, prog);
              (* compile and link *)
                compile (props, basename);
                RunCC.linkLib (basename, ldFlags props)
              end
********************)

    fun exec (spec : TargetSpec.t, prog) = let
	  val IR.Program{
		  props, target, consts, inputs, constInit,
		  globals, globalInit, strand, create, update
		} = prog
	  val {outDir, outBase, exec, double, debug, ...} = spec
	  val env = Env.new {
		  global = RN.globalsVar,
		  selfIn = RN.selfInVar,
		  selfOut = if TargetSpec.dualState spec then RN.selfOutVar else RN.selfInVar,
		  spec = spec
		}
	  val baseName = OS.Path.joinDirFile{dir = #outDir spec, file = #outBase spec}
	  val substitutions = mkSubs (spec, strand)
	(* output to C++ file *)
	  val outS = openCxxOut baseName
	  val ppDecl = Out.decl outS
	  val fragment = Out.fragment substitutions outS
	  in
	    ppDecl (CL.verbatimDcl [ExecHdrFrag.text] substitutions);
	    ppDecl (CL.verbatimDcl [NrrdSaveHelperFrag.text] substitutions);
	    outputSrc (outS, prog, strand, substitutions,
	      fn () => (
		GenInputs.genInputsStruct (env, inputs) @
		GenInputs.genExecInputFuns (env, inputs) @
		OutputUtil.genRegisterOutputOpts output));
	    ppDecl (verbFrag (spec, ParMainFrag.text, SeqMainFrag.text, substitutions));
	    Out.closeOut outS;
	    compile (spec, baseName);
	    RunCC.linkExec (baseName, ldFlags spec)
	  end
   
    fun library (spec : TargetSpec.t, prog) = let
	  val IR.Program{
		  props, target, consts, inputs, constInit,
		  globals, globalInit, strand, create, update
		} = prog
	  val {outDir, outBase, exec, double, debug, ...} = spec
	  in
	    raise Fail "FIXME"
	  end
 
  end

root@smlnj-gforge.cs.uchicago.edu
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