Open64: osprey/common/com/config

00001 /*
00002  *  Copyright (C) 2007. QLogic Corporation. All Rights Reserved.
00003  */
00004 
00005 /*
00006  * Copyright 2003, 2004, 2005, 2006 PathScale, Inc.  All Rights Reserved.
00007  */
00008 
00009 /*
00010 
00011   Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.
00012 
00013   This program is free software; you can redistribute it and/or modify it
00014   under the terms of version 2 of the GNU General Public License as
00015   published by the Free Software Foundation.
00016 
00017   This program is distributed in the hope that it would be useful, but
00018   WITHOUT ANY WARRANTY; without even the implied warranty of
00019   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
00020 
00021   Further, this software is distributed without any warranty that it is
00022   free of the rightful claim of any third person regarding infringement 
00023   or the like.  Any license provided herein, whether implied or 
00024   otherwise, applies only to this software file.  Patent licenses, if 
00025   any, provided herein do not apply to combinations of this program with 
00026   other software, or any other product whatsoever.  
00027 
00028   You should have received a copy of the GNU General Public License along
00029   with this program; if not, write the Free Software Foundation, Inc., 59
00030   Temple Place - Suite 330, Boston MA 02111-1307, USA.
00031 
00032   Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
00033   Mountain View, CA 94043, or:
00034 
00035   http://www.sgi.com
00036 
00037   For further information regarding this notice, see:
00038 
00039   http://oss.sgi.com/projects/GenInfo/NoticeExplan
00040 
00041 */
00042 
00043 
00044 /* ====================================================================
00045  * ====================================================================
00046  *
00047  * Module: config_vho.c
00048  * $Revision: 1.1.1.1 $
00049  * $Date: 2005/10/21 19:00:00 $
00050  * $Author: marcel $
00051  * $Source: /proj/osprey/CVS/open64/osprey1.0/common/com/config_vho.cxx,v $
00052  *
00053  * Revision history:
00054  *
00055  * Description:
00056  *
00057  * Configure the -VHO group (included in config.c).
00058  *
00059  * ====================================================================
00060  * ====================================================================
00061  */
00062 
00063 /* This file is included in config.c, so it doesn't need its own set of
00064  * standard includes -- only the following:
00065  */
00066 #include "config_vho.h"
00067 
00068 /* ====================================================================
00069  *
00070  * Global flag variables which reflect the -VHO group options.
00071  *
00072  * ====================================================================
00073  */
00074 
00075 #ifdef KEY
00076 BOOL    VHO_Force_Lowering              = TRUE;
00077 #else
00078 BOOL    VHO_Force_Lowering              = FALSE;
00079 #endif
00080 BOOL    VHO_Struct_Opt                  = FALSE;
00081 #ifdef KEY
00082 BOOL    VHO_Struct_Opt_Set              = FALSE;
00083 #endif
00084 BOOL    VHO_Combine_Loads               = FALSE;
00085 BOOL    VHO_Recycle_Pregs               = FALSE;
00086 INT32   VHO_Switch_Density              = 12;
00087 INT32   VHO_Switch_If_Else_Limit        = 6;
00088 INT32   VHO_Switch_Compgoto_Limit       = 3;
00089 BOOL    VHO_Switch_Opt                  = TRUE;
00090 INT32   VHO_Switch_Opt_Threshold        = 25;
00091 #ifdef KEY
00092 BOOL    VHO_Switch_Reduce_Branch        = FALSE;
00093 #endif
00094 BOOL    VHO_Cselect_Opt                 = FALSE;
00095 #ifdef KEY
00096 BOOL    VHO_Cselect_Opt_Set             = FALSE;
00097 #endif
00098 BOOL    VHO_Iload_Opt                   = TRUE;
00099 BOOL    VHO_Istore_Opt                  = TRUE;
00100 BOOL    VHO_Call_Opt                    = FALSE;
00101 #ifdef KEY
00102 /* Turn icall to call conversion inside vho_lower to FALSE by default,
00103    because (1) the original implementation is buggy; and (2) we can now
00104    do icall to call conversion inside ipa.
00105 */
00106 BOOL    VHO_Icall_Devir     = FALSE;
00107 #else
00108 BOOL    VHO_Icall_Devir     = TRUE;
00109 #endif  // KEY
00110 BOOL    VHO_Check_Tree                  = FALSE;
00111 BOOL    VHO_Single_Loop_Test            = FALSE;
00112 BOOL    VHO_Use_Do_While                = FALSE;
00113 #ifdef KEY
00114 
00115 #ifdef TARG_IA64
00116 BOOL  VHO_Enable_Simple_If_Conv = FALSE;
00117 #else
00118 BOOL  VHO_Enable_Simple_If_Conv = TRUE;
00119 #endif
00120 
00121 /* maximum overhead allowed after If-Conversion */
00122 INT32   VHO_Enable_If_Conv_Limit = 6;   
00123 /* enable misc. loop distribution and interchange at VHO lower time */
00124 BOOL    VHO_Enable_Misc_Loop_Transformation = TRUE;
00125 /* enable misc. loop fusion at VHO lower time */
00126 BOOL    VHO_Enable_Misc_Loop_Fusion = TRUE;
00127 /* enable combining identical THEN or ELSE  parts in cascaded IFs */
00128 BOOL    VHO_Merge_Thens = TRUE;
00129 BOOL    VHO_Merge_Elses = FALSE;
00130 
00131 /* Delete REGION_KIND_MP if region falls within these control bounds */
00132 INT32   VHO_Disable_MP_PU_Before = 0;
00133 INT32   VHO_Disable_MP_PU_After = 10000;
00134 INT32   VHO_Disable_MP_PU_Equal = 10000;
00135 INT32   VHO_Disable_MP_Local_Before = 0;
00136 INT32   VHO_Disable_MP_Local_After = 10000;
00137 INT32   VHO_Disable_MP_Local_Equal = 10000;
00138 #endif
00139 
00140 #ifdef TARG_X8664
00141 BOOL  VHO_Generate_Rrotate = FALSE;
00142 BOOL  VHO_Generate_Rrotate_Set = FALSE;
00143 #endif
00144 
00145 /* Debugging Flags for VHO */
00146 OPTION_LIST* VHO_Skip = NULL; /* Skip option list */
00147 SKIPLIST* VHO_Skip_List = NULL;      /* Processed skiplist */
00148 
00149 /* List of global variables to turn on and off various optimizations */
00150 
00151 /* ====================================================================
00152  *
00153  * Descriptor for the -VHO option group.
00154  *
00155  * ====================================================================
00156  */
00157 
00158 /* scalar optimizer options: */
00159 static OPTION_DESC Options_VHO[] = {
00160   { OVK_BOOL, OV_INTERNAL,  FALSE, "lower",              "lower",
00161     FALSE, 0, 0, &VHO_Force_Lowering,  NULL },
00162   { OVK_BOOL, OV_INTERNAL,  FALSE, "struct_opt",         "struct_opt",
00163     TRUE, 0, 0,  &VHO_Struct_Opt,      &VHO_Struct_Opt_Set },
00164   { OVK_BOOL, OV_INTERNAL,  FALSE, "recycle_pregs",      "recycle_pregs",
00165     FALSE, 0, 0, &VHO_Recycle_Pregs,   NULL },
00166   { OVK_BOOL, OV_INTERNAL,  FALSE, "combine_loads",      "combine_loads",
00167     FALSE, 0, 0, &VHO_Combine_Loads,   NULL },
00168   { OVK_INT32,  OV_INTERNAL,  FALSE, "switch_if_else",      "switch_if_else",
00169     6, 1, INT32_MAX,    &VHO_Switch_If_Else_Limit,   NULL },
00170   { OVK_INT32,  OV_INTERNAL,  FALSE, "switch_density",      "switch_density",
00171     12, 1, INT32_MAX,    &VHO_Switch_Density,   NULL },
00172   { OVK_INT32,  OV_INTERNAL,  FALSE, "switch_compgoto",     "switch_compgoto",
00173     3, 1, INT32_MAX,    &VHO_Switch_Compgoto_Limit,   NULL },
00174   { OVK_INT32,  OV_INTERNAL,    FALSE, "switch_opt_threshold", "switch_opt_threshold",
00175     10, 1, INT32_MAX,    &VHO_Switch_Opt_Threshold,   NULL },
00176   { OVK_BOOL, OV_INTERNAL,  FALSE, "switch_opt",         "switch",
00177     TRUE, 0, 0,  &VHO_Switch_Opt,      NULL },
00178 #ifdef KEY
00179   { OVK_BOOL, OV_INTERNAL,  FALSE, "switch_reduce_branch", "switch_reduce_branch",
00180     TRUE, 0, 0,  &VHO_Switch_Reduce_Branch,      NULL },
00181 #endif
00182   { OVK_BOOL, OV_INTERNAL,  FALSE, "cselect_opt",        "cselect",
00183     TRUE, 0, 0,  &VHO_Cselect_Opt,      &VHO_Cselect_Opt_Set },
00184   { OVK_BOOL, OV_INTERNAL,  FALSE, "iload_opt",          "iload",
00185     TRUE, 0, 0,  &VHO_Iload_Opt,      NULL },
00186   { OVK_BOOL, OV_INTERNAL,  FALSE, "istore_opt",         "istore",
00187     TRUE, 0, 0,  &VHO_Istore_Opt,      NULL },
00188   { OVK_BOOL, OV_INTERNAL,  FALSE, "call_opt",           "call",
00189     TRUE, 0, 0,  &VHO_Call_Opt,      NULL },
00190   { OVK_BOOL, OV_INTERNAL,  TRUE, "icall_devir",          "icall",
00191     TRUE, 0, 0,  &VHO_Icall_Devir,      NULL },
00192   { OVK_BOOL, OV_INTERNAL,  FALSE, "check_tree",         "check_tree",
00193     TRUE, 0, 0,  &VHO_Check_Tree,      NULL },
00194   { OVK_BOOL, OV_INTERNAL,  FALSE, "single_loop_test",   "single_loop_test",
00195     TRUE, 0, 0,  &VHO_Single_Loop_Test,      NULL },
00196   { OVK_BOOL, OV_INTERNAL,  FALSE, "use_do_while",       "use_do_while",
00197     TRUE, 0, 0,  &VHO_Use_Do_While,      NULL },
00198 #ifdef KEY
00199   { OVK_BOOL,   OV_INTERNAL,    TRUE, "if_conv",                "",
00200     0, 0, 0,    &VHO_Enable_Simple_If_Conv, NULL },
00201   { OVK_INT32,  OV_INTERNAL,    TRUE, "ifconv_limit",           "",
00202     INT32_MAX, 0, INT32_MAX,    &VHO_Enable_If_Conv_Limit, NULL },
00203   { OVK_BOOL,   OV_INTERNAL,    TRUE, "misc_loop_transformation", "",
00204     0, 0, 0,    &VHO_Enable_Misc_Loop_Transformation, NULL },
00205   { OVK_BOOL,   OV_INTERNAL,    TRUE, "misc_loop_fusion", "",
00206     0, 0, 0,    &VHO_Enable_Misc_Loop_Fusion, NULL },
00207   { OVK_BOOL,   OV_INTERNAL,    TRUE, "merge_thens", "",
00208     0, 0, 0,    &VHO_Merge_Thens, NULL },
00209   { OVK_BOOL,   OV_INTERNAL,    TRUE, "merge_elses", "",
00210     0, 0, 0,    &VHO_Merge_Elses, NULL },
00211 
00212   { OVK_INT32,  OV_INTERNAL,    TRUE, "disable_mp_pu_before", "",
00213     INT32_MAX, 0, INT32_MAX,    &VHO_Disable_MP_PU_Before, NULL },
00214   { OVK_INT32,  OV_INTERNAL,    TRUE, "disable_mp_pu_after", "",
00215     INT32_MAX, 0, INT32_MAX,    &VHO_Disable_MP_PU_After, NULL },
00216   { OVK_INT32,  OV_INTERNAL,    TRUE, "disable_mp_pu_equal", "",
00217     INT32_MAX, 0, INT32_MAX,    &VHO_Disable_MP_PU_Equal, NULL },
00218   { OVK_INT32,  OV_INTERNAL,    TRUE, "disable_mp_local_before", "",
00219     INT32_MAX, 0, INT32_MAX,    &VHO_Disable_MP_Local_Before, NULL },
00220   { OVK_INT32,  OV_INTERNAL,    TRUE, "disable_mp_local_after", "",
00221     INT32_MAX, 0, INT32_MAX,    &VHO_Disable_MP_Local_After, NULL },
00222   { OVK_INT32,  OV_INTERNAL,    TRUE, "disable_mp_local_equal", "",
00223     INT32_MAX, 0, INT32_MAX,    &VHO_Disable_MP_Local_Equal, NULL },
00224 #endif
00225 #ifdef TARG_X8664
00226   { OVK_BOOL,   OV_INTERNAL,    TRUE, "rotate", "",
00227     0, 0, 0,    &VHO_Generate_Rrotate, &VHO_Generate_Rrotate_Set },
00228 #endif
00229 
00230   /* Debugging flags for VHO */
00231   { OVK_LIST,   OV_SHY,        FALSE, "skip_equal",          "skip_e",
00232     0, 0, 4096, &VHO_Skip,      NULL },
00233   { OVK_LIST,   OV_SHY,        FALSE, "skip_before",         "skip_b",
00234     0, 0, 4096, &VHO_Skip,      NULL },
00235   { OVK_LIST,   OV_SHY,        FALSE, "skip_after",          "skip_a",
00236     0, 0, 4096, &VHO_Skip,      NULL },
00237 
00238   { OVK_COUNT }   /* List terminator -- must be last */
00239 };
osprey/common/com/config_vho.cxx
