PR debug/43479

[pf3gnuchains/gcc-fork.git] / gcc / flags.h

diff --git a/gcc/flags.h b/gcc/flags.h
index 07e5ec3..d1634bd 100644 (file)
--- a/gcc/flags.h
+++ b/gcc/flags.h
@@ -1,13 +1,13 @@
 /* Compilation switch flag definitions for GCC.
    Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
 /* Compilation switch flag definitions for GCC.
    Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,

-   2003, 2004, 2005, 2006, 2007
+   2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

    Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
    Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free

-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later

 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY


@@ -16,9 +16,8 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License
 for more details.
 
 You should have received a copy of the GNU General Public License

-along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */

 
 #ifndef GCC_FLAGS_H
 #define GCC_FLAGS_H
 
 #ifndef GCC_FLAGS_H
 #define GCC_FLAGS_H


@@ -111,20 +110,20 @@ extern int optimize;
 
 extern int optimize_size;
 
 
 extern int optimize_size;
 

-/* Do print extra warnings (such as for uninitialized variables).
-   -W/-Wextra.  */
+/* True if this is the LTO front end (lto1).  This is used to disable
+   gimple generation and lowering passes that are normally run on the
+   output of a front end.  These passes must be bypassed for lto since
+   they have already been done before the gimple was written.  */

 
 

-extern bool extra_warnings;
+extern bool in_lto_p;

 
 

-/* Nonzero to warn about unused variables, functions et.al.  Use
-   set_Wunused() to update the -Wunused-* flags that correspond to the
-   -Wunused option.  */
+/* Nonzero if we should write GIMPLE bytecode for link-time optimization.  */

 
 

-extern void set_Wunused (int setting);
+extern int flag_generate_lto;

 
 

-/* Used to set the level of -Wstrict-aliasing, when no level is specified.  
+/* Used to set the level of -Wstrict-aliasing, when no level is specified.

    The external way to set the default level is to use
    The external way to set the default level is to use

-   -Wstrict-aliasing=level.  
+   -Wstrict-aliasing=level.

    ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified,
    and 0 otherwise.  After calling this function, wstrict_aliasing will be
    set to the default value of -Wstrict_aliasing=level.  */
    ONOFF is assumed to take value 1 when -Wstrict-aliasing is specified,
    and 0 otherwise.  After calling this function, wstrict_aliasing will be
    set to the default value of -Wstrict_aliasing=level.  */


@@ -138,20 +137,11 @@ extern void set_Wstrict_aliasing (int onoff);
 extern bool warn_larger_than;
 extern HOST_WIDE_INT larger_than_size;
 
 extern bool warn_larger_than;
 extern HOST_WIDE_INT larger_than_size;
 

-/* Nonzero means warn about constructs which might not be strict
-   aliasing safe.  */
+/* Nonzero means warn about any function whose frame size is larger
+   than N bytes. */

 
 

-extern int warn_strict_aliasing;
-
-/* Nonzero means warn about optimizations which rely on undefined
-   signed overflow.  */
-
-extern int warn_strict_overflow;
-
-/* Temporarily suppress certain warnings.
-   This is set while reading code from a system header file.  */
-
-extern int in_system_header;
+extern bool warn_frame_larger_than;
+extern HOST_WIDE_INT frame_larger_than_size;

 
 /* Nonzero for -dp: annotate the assembly with a comment describing the
    pattern and alternative used.  */
 
 /* Nonzero for -dp: annotate the assembly with a comment describing the
    pattern and alternative used.  */


@@ -179,11 +169,6 @@ extern int flag_pcc_struct_return;
 
 extern int flag_complex_method;
 
 
 extern int flag_complex_method;
 

-/* Nonzero means that we don't want inlining by virtue of -fno-inline,
-   not just because the tree inliner turned us off.  */
-
-extern int flag_really_no_inline;
-

 /* Nonzero if we are only using compiler to check syntax errors.  */
 
 extern int rtl_dump_and_exit;
 /* Nonzero if we are only using compiler to check syntax errors.  */
 
 extern int rtl_dump_and_exit;


@@ -202,6 +187,10 @@ extern int flag_dump_unnumbered;
 
 extern int flag_pedantic_errors;
 
 
 extern int flag_pedantic_errors;
 

+/* Nonzero means make permerror produce warnings instead of errors.  */
+
+extern int flag_permissive;
+

 /* Nonzero if we are compiling code for a shared library, zero for
    executable.  */
 
 /* Nonzero if we are compiling code for a shared library, zero for
    executable.  */
 


@@ -221,14 +210,45 @@ extern int flag_debug_asm;
 extern int flag_next_runtime;
 
 extern int flag_dump_rtl_in_asm;
 extern int flag_next_runtime;
 
 extern int flag_dump_rtl_in_asm;

-\f
-/* Other basic status info about current function.  */

 
 

-/* Nonzero means current function must be given a frame pointer.
-   Set in stmt.c if anything is allocated on the stack there.
-   Set in reload1.c if anything is allocated on the stack there.  */
+/* The algorithm used for the integrated register allocator (IRA).  */
+enum ira_algorithm
+{
+  IRA_ALGORITHM_CB,
+  IRA_ALGORITHM_PRIORITY
+};
+
+extern enum ira_algorithm flag_ira_algorithm;
+
+/* The regions used for the integrated register allocator (IRA).  */
+enum ira_region
+{
+  IRA_REGION_ONE,
+  IRA_REGION_ALL,
+  IRA_REGION_MIXED
+};
+
+extern enum ira_region flag_ira_region;
+
+extern unsigned int flag_ira_verbose;

 
 

-extern int frame_pointer_needed;
+/* The options for excess precision.  */
+enum excess_precision
+{
+  EXCESS_PRECISION_DEFAULT,
+  EXCESS_PRECISION_FAST,
+  EXCESS_PRECISION_STANDARD
+};
+
+/* The excess precision specified on the command line, or defaulted by
+   the front end.  */
+extern enum excess_precision flag_excess_precision_cmdline;
+
+/* The excess precision currently in effect.  */
+extern enum excess_precision flag_excess_precision;
+
+\f
+/* Other basic status info about current function.  */

 
 /* Nonzero if subexpressions must be evaluated from left-to-right.  */
 extern int flag_evaluation_order;
 
 /* Nonzero if subexpressions must be evaluated from left-to-right.  */
 extern int flag_evaluation_order;


@@ -237,8 +257,14 @@ extern int flag_evaluation_order;
 extern unsigned HOST_WIDE_INT g_switch_value;
 extern bool g_switch_set;
 
 extern unsigned HOST_WIDE_INT g_switch_value;
 extern bool g_switch_set;
 

-/* Values of the -falign-* flags: how much to align labels in code. 
-   0 means `use default', 1 means `don't align'.  
+/* Same for selective scheduling.  */
+extern bool sel_sched_switch_set;
+
+/* Whether to run the warn_unused_result attribute pass.  */
+extern bool flag_warn_unused_result;
+
+/* Values of the -falign-* flags: how much to align labels in code.
+   0 means `use default', 1 means `don't align'.

    For each variable, there is an _log variant which is the power
    of two not less than the variable, for .align output.  */
 
    For each variable, there is an _log variant which is the power
    of two not less than the variable, for .align output.  */
 


@@ -250,10 +276,6 @@ extern int align_labels_log;
 extern int align_labels_max_skip;
 extern int align_functions_log;
 
 extern int align_labels_max_skip;
 extern int align_functions_log;
 

-/* Like align_functions_log above, but used by front-ends to force the
-   minimum function alignment.  Zero means no alignment is forced.  */
-extern int force_align_functions_log;
-

 /* Nonzero if we dump in VCG format, not plain text.  */
 extern int dump_for_graph;
 
 /* Nonzero if we dump in VCG format, not plain text.  */
 extern int dump_for_graph;
 


@@ -280,37 +302,36 @@ extern int flag_var_tracking;
    warning message in case flag was set by -fprofile-{generate,use}.  */
 extern bool flag_speculative_prefetching_set;
 
    warning message in case flag was set by -fprofile-{generate,use}.  */
 extern bool flag_speculative_prefetching_set;
 

-/* Returns TRUE if generated code should match ABI version N or
-   greater is in use.  */
+/* Type of stack check.  */
+enum stack_check_type
+{
+  /* Do not check the stack.  */
+  NO_STACK_CHECK = 0,

 
 

-#define abi_version_at_least(N) \
-  (flag_abi_version == 0 || flag_abi_version >= (N))
+  /* Check the stack generically, i.e. assume no specific support
+     from the target configuration files.  */
+  GENERIC_STACK_CHECK,

 
 

-/* True if the given mode has a NaN representation and the treatment of
-   NaN operands is important.  Certain optimizations, such as folding
-   x * 0 into 0, are not correct for NaN operands, and are normally
-   disabled for modes with NaNs.  The user can ask for them to be
-   done anyway using the -funsafe-math-optimizations switch.  */
-#define HONOR_NANS(MODE) \
-  (MODE_HAS_NANS (MODE) && !flag_finite_math_only)
+  /* Check the stack and rely on the target configuration files to
+     check the static frame of functions, i.e. use the generic
+     mechanism only for dynamic stack allocations.  */
+  STATIC_BUILTIN_STACK_CHECK,

 
 

-/* Like HONOR_NANs, but true if we honor signaling NaNs (or sNaNs).  */
-#define HONOR_SNANS(MODE) (flag_signaling_nans && HONOR_NANS (MODE))
+  /* Check the stack and entirely rely on the target configuration
+     files, i.e. do not use the generic mechanism at all.  */
+  FULL_BUILTIN_STACK_CHECK
+};
+extern enum stack_check_type flag_stack_check;

 
 

-/* As for HONOR_NANS, but true if the mode can represent infinity and
-   the treatment of infinite values is important.  */
-#define HONOR_INFINITIES(MODE) \
-  (MODE_HAS_INFINITIES (MODE) && !flag_finite_math_only)
+/* Returns TRUE if generated code should match ABI version N or
+   greater is in use.  */

 
 

-/* Like HONOR_NANS, but true if the given mode distinguishes between
-   positive and negative zero, and the sign of zero is important.  */
-#define HONOR_SIGNED_ZEROS(MODE) \
-  (MODE_HAS_SIGNED_ZEROS (MODE) && flag_signed_zeros)
+#define abi_version_at_least(N) \
+  (flag_abi_version == 0 || flag_abi_version >= (N))

 
 

-/* Like HONOR_NANS, but true if given mode supports sign-dependent rounding,
-   and the rounding mode is important.  */
-#define HONOR_SIGN_DEPENDENT_ROUNDING(MODE) \
-  (MODE_HAS_SIGN_DEPENDENT_ROUNDING (MODE) && flag_rounding_math)
+/* Return whether the function should be excluded from
+   instrumentation.  */
+extern bool flag_instrument_functions_exclude_p (tree fndecl);

 
 /* True if overflow wraps around for the given integral type.  That
    is, TYPE_MAX + 1 == TYPE_MIN.  */
 
 /* True if overflow wraps around for the given integral type.  That
    is, TYPE_MAX + 1 == TYPE_MIN.  */


@@ -333,6 +354,9 @@ extern bool flag_speculative_prefetching_set;
 #define TYPE_OVERFLOW_TRAPS(TYPE) \
   (!TYPE_UNSIGNED (TYPE) && flag_trapv)
 
 #define TYPE_OVERFLOW_TRAPS(TYPE) \
   (!TYPE_UNSIGNED (TYPE) && flag_trapv)
 

+/* True if pointer types have undefined overflow.  */
+#define POINTER_TYPE_OVERFLOW_UNDEFINED (flag_strict_overflow)
+

 /* Names for the different levels of -Wstrict-overflow=N.  The numeric
    values here correspond to N.  */
 
 /* Names for the different levels of -Wstrict-overflow=N.  The numeric
    values here correspond to N.  */