/* Compilation switch flag definitions for GCC.
- Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002
+ Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002,
+ 2003, 2004
Free Software Foundation, Inc.
This file is part of GCC.
#ifndef GCC_FLAGS_H
#define GCC_FLAGS_H
-/* Name of the input .c file being compiled. */
-extern const char *main_input_filename;
-
enum debug_info_type
{
NO_DEBUG, /* Write no debug info. */
/* Nonzero means use GNU-only extensions in the generated symbolic
debugging information. */
-extern int use_gnu_debug_info_extensions;
+extern bool use_gnu_debug_info_extensions;
+
+/* Nonzero means emit debugging information only for symbols which are used. */
+extern int flag_debug_only_used_symbols;
/* Nonzero means do optimizations. -opt. */
/* Don't print warning messages. -w. */
-extern int inhibit_warnings;
+extern bool inhibit_warnings;
/* Don't suppress warnings from system headers. -Wsystem-headers. */
-extern int warn_system_headers;
+extern bool warn_system_headers;
/* Do print extra warnings (such as for uninitialized variables).
-W/-Wextra. */
-extern int extra_warnings;
+extern bool extra_warnings;
+
+/* If -Werror. */
+
+extern bool warnings_are_errors;
/* Nonzero to warn about unused variables, functions et.al. Use
set_Wunused() to update the -Wunused-* flags that correspond to the
-Wunused option. */
-extern void set_Wunused PARAMS ((int setting));
+extern void set_Wunused (int setting);
-extern int warn_unused_function;
-extern int warn_unused_label;
-extern int warn_unused_parameter;
-extern int warn_unused_variable;
-extern int warn_unused_value;
+extern bool warn_unused_function;
+extern bool warn_unused_label;
+extern bool warn_unused_parameter;
+extern bool warn_unused_variable;
+extern bool warn_unused_value;
/* Nonzero to warn about code which is never reached. */
-extern int warn_notreached;
+extern bool warn_notreached;
/* Nonzero means warn if inline function is too large. */
-extern int warn_inline;
+extern bool warn_inline;
/* Nonzero to warn about variables used before they are initialized. */
extern int warn_uninitialized;
-/* Zero if unknown pragmas are ignored
- One if the compiler should warn about an unknown pragma not in
- a system include file.
- Greater than one if the compiler should warn for all unknown
- pragmas. */
-
-extern int warn_unknown_pragmas;
-
/* Nonzero means warn about all declarations which shadow others. */
-extern int warn_shadow;
+extern bool warn_shadow;
/* Warn if a switch on an enum, that does not have a default case,
fails to have a case for every enum value. */
-extern int warn_switch;
+extern bool warn_switch;
/* Warn if a switch does not have a default case. */
-extern int warn_switch_default;
+extern bool warn_switch_default;
/* Warn if a switch on an enum fails to have a case for every enum
value (regardless of the presence or otherwise of a default case). */
-extern int warn_switch_enum;
+extern bool warn_switch_enum;
/* Nonzero means warn about function definitions that default the return type
or that use a null return and have a return-type other than void. */
/* Warn about functions which might be candidates for attribute noreturn. */
-extern int warn_missing_noreturn;
+extern bool warn_missing_noreturn;
/* Nonzero means warn about pointer casts that increase the required
alignment of the target type (and might therefore lead to a crash
due to a misaligned access). */
-extern int warn_cast_align;
+extern bool warn_cast_align;
/* Nonzero means warn about any objects definitions whose size is larger
than N bytes. Also want about function definitions whose returned
values are larger than N bytes. The value N is in `larger_than_size'. */
-extern int warn_larger_than;
+extern bool warn_larger_than;
extern HOST_WIDE_INT larger_than_size;
/* Warn if a function returns an aggregate,
since there are often incompatible calling conventions for doing this. */
-extern int warn_aggregate_return;
+extern bool warn_aggregate_return;
/* Warn if packed attribute on struct is unnecessary and inefficient. */
-extern int warn_packed;
+extern bool warn_packed;
/* Warn when gcc pads a structure to an alignment boundary. */
-extern int warn_padded;
+extern bool warn_padded;
/* Warn when an optimization pass is disabled. */
-extern int warn_disabled_optimization;
+extern bool warn_disabled_optimization;
/* Nonzero means warn about uses of __attribute__((deprecated))
declarations. */
-extern int warn_deprecated_decl;
+extern bool warn_deprecated_decl;
/* Nonzero means warn about constructs which might not be strict
aliasing safe. */
-extern int warn_strict_aliasing;
+extern bool warn_strict_aliasing;
/* Nonzero if generating code to do profiling. */
extern int profile_arc_flag;
+/* Nonzero if value profile should be measured. */
+
+extern int flag_profile_values;
+
/* Nonzero if generating info for gcov to calculate line test coverage. */
extern int flag_test_coverage;
extern int flag_trapping_math;
+/* Nonzero means disable transformations that assume default floating
+ point rounding behavior. */
+
+extern int flag_rounding_math;
+
/* 0 means straightforward implementation of complex divide acceptable.
1 means wide ranges of inputs must work for complex divide.
2 means C99-like requirements for complex divide (not yet implemented). */
extern int flag_schedule_speculative_load;
extern int flag_schedule_speculative_load_dangerous;
+/* The following flags have an effect during scheduling after register
+ allocation:
+
+ sched_stalled_insns means that insns can be moved prematurely from the queue
+ of stalled insns into the ready list.
+
+ sched_stalled_insns_dep controls how many recently scheduled cycles will
+ be examined for a dependency on a stalled insn that is candidate for
+ premature removal from the queue of stalled insns into the ready list (has
+ an effect only if the flag 'sched_stalled_insns' is set). */
+
+extern int flag_sched_stalled_insns;
+extern int flag_sched_stalled_insns_dep;
+
/* flag_branch_on_count_reg means try to replace add-1,compare,branch tupple
by a cheaper branch, on a count register. */
extern int flag_branch_on_count_reg;
extern int flag_pic;
+/* Nonzero if we are compiling position independent code for executable.
+ 1 vs 2 for a target-dependent "small" or "large" mode. */
+
+extern int flag_pie;
+
+/* Nonzero if we are compiling code for a shared library, zero for
+ executable. */
+
+extern int flag_shlib;
+
/* Nonzero means generate extra code for exception handling and enable
exception handling. */
extern int flag_exceptions;
-/* Nonzero means generate frame unwind info table when supported */
+/* Nonzero means generate frame unwind info table when supported. */
extern int flag_unwind_tables;
-/* Nonzero means generate frame unwind info table exact at each insn boundary */
+/* Nonzero means generate frame unwind info table exact at each insn boundary. */
extern int flag_asynchronous_unwind_tables;
in generated assembly code. */
extern int flag_leading_underscore;
-/* -fgnu-linker specifies use of the GNU linker for initializations.
- -fno-gnu-linker says that collect will be used. */
-extern int flag_gnu_linker;
-
/* Tag all structures with __attribute__(packed) */
extern int flag_pack_struct;
for PLUS / SUB / MULT. */
extern int flag_trapv;
+/* Nonzero if the signed arithmetic overflow should wrap around. */
+extern int flag_wrapv;
+
+/* Nonzero if subexpressions must be evaluated from left-to-right. */
+extern int flag_evaluation_order;
+
/* Value of the -G xx switch, and whether it was passed or not. */
-extern int g_switch_value;
-extern int 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'.
extern int flag_gcse_sm;
+/* Nonzero if we want to perform redundant load-after-store elimination
+ in gcse. */
+
+extern int flag_gcse_las;
+
+/* Nonzero if value histograms should be used to optimize code. */
+extern int flag_value_profile_transformations;
+
+/* Perform branch target register optimization before prologue / epilogue
+ threading. */
+
+extern int flag_branch_target_load_optimize;
+
+/* Perform branch target register optimization after prologue / epilogue
+ threading and jump2. */
+
+extern int flag_branch_target_load_optimize2;
+
+/* For the bt-load pass, nonzero means don't re-use branch target registers
+ in any basic block. */
+extern int flag_btr_bb_exclusive;
+
/* Nonzero means we should do dwarf2 duplicate elimination. */
extern int flag_unit_at_a_time;
+extern int flag_web;
+
+/* Nonzero means that we defer emitting functions until they are actually
+ used. */
+extern int flag_remove_unreachable_functions;
+
/* A string that's used when a random name is required. NULL means
to make it really random. */
/* 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_unsafe_math_optimizations)
+ (MODE_HAS_SIGN_DEPENDENT_ROUNDING (MODE) && flag_rounding_math)
#endif /* ! GCC_FLAGS_H */
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