From 7d90895dcf97c726deab121bb042e68abda301e9 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Sat, 1 May 2021 22:44:29 -0700
Subject: Experiments with LUT mapping for small functions.

---
 src/base/abci/abc.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

(limited to 'src/base/abci/abc.c')

diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index 4297c81d..65aaf360 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -485,6 +485,7 @@ static int Abc_CommandAbc9Of                 ( Abc_Frame_t * pAbc, int argc, cha
 static int Abc_CommandAbc9Pack               ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Edge               ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9SatLut             ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandAbc9MinLut             ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Unmap              ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Struct             ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandAbc9Trace              ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -1208,6 +1209,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
     Cmd_CommandAdd( pAbc, "ABC9",         "&pack",         Abc_CommandAbc9Pack,         0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&edge",         Abc_CommandAbc9Edge,         0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&satlut",       Abc_CommandAbc9SatLut,       0 );
+    Cmd_CommandAdd( pAbc, "ABC9",         "&minlut",       Abc_CommandAbc9MinLut,       0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&unmap",        Abc_CommandAbc9Unmap,        0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&struct",       Abc_CommandAbc9Struct,       0 );
     Cmd_CommandAdd( pAbc, "ABC9",         "&trace",        Abc_CommandAbc9Trace,        0 );
@@ -40810,6 +40812,72 @@ usage:
     return 1;
 }
 
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandAbc9MinLut( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    extern Gia_Man_t * Gia_ManPerformMinLut( Gia_Man_t * p, int GroupSize, int LutSize, int fVerbose );
+    Gia_Man_t * pTemp;
+    int c, LutSize = 6, GroupSize = 3, fVerbose = 0;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "KGvh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'K':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-K\" should be followed by a positive integer.\n" );
+                goto usage;
+            }
+            LutSize = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            break;
+        case 'G':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-G\" should be followed by a positive integer.\n" );
+                goto usage;
+            }
+            GroupSize = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            break;
+        case 'v':
+            fVerbose ^= 1;
+            break;
+        case 'h':
+        default:
+            goto usage;
+        }
+    }
+    if ( pAbc->pGia == NULL )
+    {
+        Abc_Print( -1, "Empty GIA network.\n" );
+        return 1;
+    }
+    pTemp = Gia_ManPerformMinLut( pAbc->pGia, GroupSize, LutSize, fVerbose );
+    //Abc_FrameUpdateGia( pAbc, pTemp );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: &minlut [-KG num] [-vh]\n" );
+    Abc_Print( -2, "\t           performs specialized LUT mapping\n" );
+    Abc_Print( -2, "\t-K num   : the LUT size for mapping [default = %d]\n", LutSize );
+    Abc_Print( -2, "\t-G num   : the output group size [default = %d]\n",    GroupSize );
+    Abc_Print( -2, "\t-v       : toggles verbose output [default = %s]\n",   fVerbose? "yes": "no" );
+    Abc_Print( -2, "\t-h       : prints the command usage\n");
+    return 1;
+}
+
 /**Function*************************************************************
 
   Synopsis    []
-- 
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