/* Compilation switch flag definitions for GCC.
- Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+ Copyright (C) 1987, 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002
Free Software Foundation, Inc.
This file is part of GCC.
DWARF_DEBUG, /* Write Dwarf debug info (using dwarfout.c). */
DWARF2_DEBUG, /* Write Dwarf v2 debug info (using dwarf2out.c). */
XCOFF_DEBUG, /* Write IBM/Xcoff debug info (using dbxout.c). */
- VMS_DEBUG, /* Write VMS debug info (using vmsdbgout.c). */
+ VMS_DEBUG, /* Write VMS debug info (using vmsdbgout.c). */
VMS_AND_DWARF2_DEBUG /* Write VMS debug info (using vmsdbgout.c).
- and DWARF v2 debug info (using dwarf2out.c). */
+ and DWARF v2 debug info (using dwarf2out.c). */
};
/* Specify which kind of debugging info to generate. */
extern int warn_shadow;
-/* Warn if a switch on an enum fails to have a case for every enum value. */
+/* 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;
+/* Warn if a switch does not have a default case. */
+
+extern int 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;
+
/* 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. */
extern int warn_disabled_optimization;
-/* Nonzero if generating code to do profiling. */
+/* Nonzero means warn about uses of __attribute__((deprecated))
+ declarations. */
-extern int profile_flag;
+extern int warn_deprecated_decl;
-/* Nonzero if generating code to do profiling on the basis of basic blocks. */
+/* Nonzero if generating code to do profiling. */
-extern int profile_block_flag;
+extern int profile_flag;
/* Nonzero if generating code to profile program flow graph arcs. */
extern int flag_reorder_blocks;
+/* Nonzero if functions should be reordered. */
+
+extern int flag_reorder_functions;
+
/* Nonzero if registers should be renamed. */
extern int flag_rename_registers;
extern int flag_move_all_movables;
+/* Nonzero enables prefetch optimizations for arrays in loops. */
+
+extern int flag_prefetch_loop_arrays;
+
/* Nonzero forces all general induction variables in loops to be
strength reduced. */
extern int flag_unsafe_math_optimizations;
+/* Nonzero means that no NaNs or +-Infs are expected. */
+
+extern int flag_finite_math_only;
+
/* Zero means that floating-point math operations cannot generate a
(user-visible) trap. This is the case, for example, in nonstop
IEEE 754 arithmetic. */
extern int flag_no_inline;
+/* 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 flag_syntax_only;
extern int flag_dump_unnumbered;
-/* Nonzero means pretend it is OK to examine bits of target floats,
- even if that isn't true. The resulting code will have incorrect constants,
- but the same series of instructions that the native compiler would make. */
-
-extern int flag_pretend_float;
-
/* Nonzero means change certain warnings into errors.
Usually these are warnings about failure to conform to some standard. */
extern int flag_pedantic_errors;
-/* Nonzero means generate position-independent code.
- This is not fully implemented yet. */
+/* Nonzero means generate position-independent code. 1 vs 2 for a
+ target-dependent "small" or "large" mode. */
extern int flag_pic;
+/* Set to the default thread-local storage (tls) model to use. */
+
+enum tls_model {
+ TLS_MODEL_GLOBAL_DYNAMIC = 1,
+ TLS_MODEL_LOCAL_DYNAMIC,
+ TLS_MODEL_INITIAL_EXEC,
+ TLS_MODEL_LOCAL_EXEC
+};
+
+extern enum tls_model flag_tls_default;
+
/* Nonzero means generate extra code for exception handling and enable
exception handling. */
extern int frame_pointer_needed;
-/* Nonzero if GCC must add code to check memory access (used by Checker). */
-
-extern int flag_check_memory_usage;
-
/* Nonzero if the generated code should trap on signed overflow
for PLUS / SUB / MULT. */
extern int flag_trapv;
-/* Nonzero if GCC must prefix function names (used with
- flag_check_memory_usage). */
-
-extern int flag_prefix_function_name;
-
/* Value of the -G xx switch, and whether it was passed or not. */
extern int g_switch_value;
extern int g_switch_set;
/* Nonzero means enable synchronous exceptions for non-call instructions. */
extern int flag_non_call_exceptions;
+/* Nonzero means put zero initialized data in the bss section. */
+extern int flag_zero_initialized_in_bss;
+
+/* Nonzero means disable transformations observable by signaling NaNs. */
+extern int flag_signaling_nans;
+
+/* 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 x, 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)
+
+/* Like HONOR_NANs, but true if we honor signaling NaNs (or sNaNs). */
+#define HONOR_SNANS(MODE) (flag_signaling_nans && HONOR_NANS (MODE))
+
+/* 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)
+
+/* Like HONOR_NANS, but true if the given mode distinguishes between
+ postive and negative zero, and the sign of zero is important. */
+#define HONOR_SIGNED_ZEROS(MODE) \
+ (MODE_HAS_SIGNED_ZEROS (MODE) && !flag_unsafe_math_optimizations)
+
+/* 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)
+
#endif /* ! GCC_FLAGS_H */
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