* doc/install.texi (avr): Update required binutils version.

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

diff --git a/gcc/flags.h b/gcc/flags.h
index a3e4a04..39ca5ea 100644 (file)
--- a/gcc/flags.h
+++ b/gcc/flags.h
@@ -126,10 +126,20 @@ extern int warn_unknown_pragmas;
 
 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.  */
 
@@ -174,6 +184,11 @@ extern int warn_disabled_optimization;
 
 extern int warn_deprecated_decl;
 
+/* Nonzero means warn about constructs which might not be strict
+   aliasing safe.  */
+
+extern int warn_strict_aliasing;
+
 /* Nonzero if generating code to do profiling.  */
 
 extern int profile_flag;
@@ -194,6 +209,10 @@ extern int flag_branch_probabilities;
 
 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;
@@ -345,6 +364,10 @@ extern int flag_errno_math;
 
 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.  */
@@ -408,7 +431,7 @@ extern int flag_schedule_insns_after_reload;
 /* The following flags have effect only for scheduling before register
    allocation:
 
-   flag_schedule_interblock means schedule insns accross basic blocks.
+   flag_schedule_interblock means schedule insns across basic blocks.
    flag_schedule_speculative means allow speculative motion of non-load insns.
    flag_schedule_speculative_load means allow speculative motion of some
    load insns.
@@ -444,8 +467,8 @@ extern int flag_dump_unnumbered;
 
 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;
 
@@ -540,19 +563,10 @@ extern int flag_peephole2;
 /* Try to guess branch probablities.  */
 extern int flag_guess_branch_prob;
 
-/* -fbounded-pointers causes gcc to compile pointers as composite
-   objects occupying three words: the pointer value, the base address
-   of the referent object, and the address immediately beyond the end
-   of the referent object.  The base and extent allow us to perform
-   runtime bounds checking.  -fbounded-pointers implies -fcheck-bounds.  */
-extern int flag_bounded_pointers;
-
 /* -fcheck-bounds causes gcc to generate array bounds checks.
-   For C, C++: defaults to value of flag_bounded_pointers.
-   For ObjC: defaults to off.
+   For C, C++ and ObjC: defaults off.
    For Java: defaults to on.
-   For Fortran: defaults to off.
-   For CHILL: defaults to off.  */
+   For Fortran: defaults to off.  */
 extern int flag_bounds_check;
 
 /* This will attempt to merge constant section constants, if 1 only
@@ -598,6 +612,10 @@ extern int align_labels_max_skip;
 extern int align_functions;
 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;
 
@@ -628,7 +646,7 @@ extern int flag_gcse_sm;
 
 extern int flag_eliminate_dwarf2_dups;
 
-/* Non-zero means to collect statistics which might be expensive
+/* Nonzero means to collect statistics which might be expensive
    and to print them when we are done.  */
 extern int flag_detailed_statistics;
 
@@ -638,18 +656,24 @@ 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_unsafe_math_optimizations)
+  (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_unsafe_math_optimizations)
+  (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.  */