config_opt.h

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/*

  Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.

  This program is free software; you can redistribute it and/or modify it
  under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation.

  This program is distributed in the hope that it would be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

  Further, this software is distributed without any warranty that it is
  free of the rightful claim of any third person regarding infringement 
  or the like.  Any license provided herein, whether implied or 
  otherwise, applies only to this software file.  Patent licenses, if 
  any, provided herein do not apply to combinations of this program with 
  other software, or any other product whatsoever.  

  You should have received a copy of the GNU General Public License along
  with this program; if not, write the Free Software Foundation, Inc., 59
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  Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
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*/


/* ====================================================================
 * ====================================================================
 *
 *
 * Revision history:
 *  05-May-96 - Extracted from be/opt/opt_config.h.
 *
 * Description:
 *
 * Declare global flag variables for -OPT group options.
 * This file is included in common/com/config.c.
 *
 * Declarations of -OPT flags should be put here, instead of in
 * config.h.  The intent is to allow updates of the -OPT group
 * without forcing recompilation of everything that includes config.h.
 * (However, the transfer of the flags' definitions here from config.h
 * is not yet complete, so most of the old ones still require
 * config.h.)
 *
 * ====================================================================
 * WARNING: WHENEVER A NEW FLAG IS ADDED:
 * ###  - Add the flag variable declaration to config_opt.h (here) .
 * ###  - Add the flag variable definition to config_opt.cxx .
 * ###  - Add the option to the group description in config_opt.cxx .
 * ====================================================================
 *
 * ====================================================================
 * ====================================================================
 */

#ifndef config_opt_INCLUDED
#define config_opt_INCLUDED

#ifndef flags_INCLUDED
#include "flags.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

/* Incomplete types to prevent unnecessary inclusion: */
struct skiplist;

/*********************************************************************
 ***
 *** Flag variable declarations:
 ***
 *********************************************************************
 */

/***** Optimization Warning Messages *****/
extern BOOL Show_OPT_Warnings;          /* Display OPT warning messages */

/***** Aliasing control *****/
extern BOOL Alias_Pointer_Parms;        /* Reference parms indep? */
extern BOOL Alias_Pointer_Types;        /* Ptrs to distinct basic types indep? */
extern BOOL Alias_Not_In_Union; /* Ptrs point to non-union types */
extern BOOL Alias_Pointer_Strongly_Typed; /* Ptrs to distinct types indep? */
extern BOOL Alias_Pointer_Named_Data;   /* No pointers to named data? */
extern BOOL Alias_Pointer_Restricted;   /* *p and *q not aliased */
extern BOOL Alias_Pointer_Disjoint;     /* **p and **q not aliased */
extern BOOL Alias_Pointer_Cray;         /* Cray pointer semantics? */
extern BOOL Alias_Common_Scalar;        /* Distinguish scalar from other array
                                           in a common block */
extern BOOL  Alias_F90_Pointer_Unaliased;  /* Are F90 pointers unaliased? */

/***** Expression folding options *****/
extern BOOL Enable_Cfold_Float;         /* FP constant folding? */
extern BOOL Enable_Cfold_Reassociate;   /* Re-association allowed? */
extern BOOL Enable_Cfold_Intrinsics;    /* Intrinsic constant folding? */
extern BOOL Cfold_Intrinsics_Set;       /* ... option seen? */
extern BOOL CIS_Allowed;        /* sin(x) and cos(x) => cis(x) ? */
extern BOOL Div_Split_Allowed;  /* Change a/b --> a*1/b ? */
extern BOOL Fast_Exp_Allowed;   /* Avoid exp() calls? */
extern BOOL Fast_IO_Allowed;    /* Fast printf/scanf/printw */
extern BOOL Fast_Sqrt_Allowed;  /* Change sqrt(x) --> x * rsqrt(x) ? */
extern BOOL Optimize_CVTL_Exp;  /* Optimize expansion of CVTL operators */
extern BOOL Enable_CVT_Opt;     /* Optimize expansion of CVT operators */
extern BOOL Force_IEEE_Comparisons;     /* IEEE NaN comparisons? */
extern BOOL Inline_Intrinsics_Early;    /* Inline intrinsics just after VHO */
extern BOOL Enable_extract_compose;     /* Enable use of the extract/compose whirl ops */

/***** Miscellaneous optimization options *****/
extern BOOL OPT_Pad_Common;     /* Do internal common block padding? */
extern BOOL OPT_Reorg_Common;   /* Do common block reorganization (split)? */
extern BOOL OPT_Reorg_Common_Set;       /* ... option seen? */
extern BOOL OPT_Unroll_Analysis;        /* Enable unroll limitations? */
extern BOOL OPT_Unroll_Analysis_Set;    /* ... option seen? */
extern BOOL GCM_Speculative_Ptr_Deref;   /* allow load speculation of a memory
                                          reference that differs by a small
                                          offset from some reference location*/
extern BOOL GCM_Speculative_Ptr_Deref_Set;   /* ... option seen? */
extern BOOL Early_MP_Processing; /* Do mp lowerering before lno/preopt */
extern BOOL Implied_Do_Io_Opt;  /* Do implied-do loop opt for I/O */
extern BOOL Cray_Ivdep;         /* Use Cray meaning for Ivdep */
extern BOOL Liberal_Ivdep;      /* Use liberal meaning for ivdep */
extern BOOL Inhibit_EH_opt;     /* Don't remove calless EH regions */
extern BOOL OPT_recompute_addr_flags; /* recompute addr saved */
extern BOOL OPT_IPA_addr_analysis; /* enable the use of IPA addr analysis result */ 
extern BOOL Delay_U64_Lowering;/* Delay unsigned 64-bit lowering to after wopt*/
extern BOOL OPT_shared_memory;  // assume use of shared memory

/***** Instrumentation related options *****/
extern INT32 Instrumentation_Phase_Num;
extern BOOL Instrumentation_Enabled;
extern UINT32 Instrumentation_Actions;
extern BOOL Instrumentation_Unique_Output;
extern INT32 Feedback_Phase_Num;
extern OPTION_LIST* Feedback_Option;
#ifdef __cplusplus
}
#endif
#endif /* config_opt_INCLUDED */