; Options for the language- and target-independent parts of the compiler.
-; Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
+; 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
; 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/>.
-; See the GCC internals manual for a description of this file's format.
+; See the GCC internals manual (options.texi) for a description of this file's format.
; Please try to keep this file in ASCII collating order.
Common Var(flag_fatal_errors)
Exit on the first error occurred
+Wframe-larger-than=
+Common RejectNegative Joined UInteger
+-Wframe-larger-than=@var{len} Warn whenever a function's stack frame requires
+more than @var{len} bytes. The computation done to determine
+the stack frame size is approximate and not conservative.
+The actual requirements may be somewhat greater than @var{len}
+even if you do not get a warning. In addition, any space allocated
+via @code{alloca}, variable-length arrays, or related constructs
+is not included by the compiler when determining
+whether or not to issue a warning.
+
Winline
Common Var(warn_inline) Warning
Warn when an inlined function cannot be inlined
Wlarger-than-
Common RejectNegative Joined UInteger Warning
--Wlarger-than-<number> Warn if an object is larger than <number> bytes
+
+Wlarger-than=
+Common RejectNegative Joined UInteger Warning
+-Wlarger-than=<number> Warn if an object is larger than <number> bytes
+
+Wlogical-op
+Common Warning Var(warn_logical_op)
+Warn when a logical operator is suspicously always evaluating to true or false
Wunsafe-loop-optimizations
Common Var(warn_unsafe_loop_optimizations) Warning
Warn about code which might break strict aliasing rules
Wstrict-aliasing=
-Common Joined UInteger Warning
+Common Joined UInteger Var(warn_strict_aliasing) Init(-1) Warning
Warn about code which might break strict aliasing rules
Wstrict-overflow
Warn about optimizations that assume that signed overflow is undefined
Wstrict-overflow=
-Common Joined UInteger Warning
+Common Joined UInteger Var(warn_strict_overflow) Init(-1) Warning
Warn about optimizations that assume that signed overflow is undefined
Wswitch
Common Var(warn_system_headers) Warning
Do not suppress warnings from system headers
+Wtype-limits
+Common Var(warn_type_limits) Init(-1) Warning
+Warn if a comparison is always true or always false due to the limited range of the data type
+
Wuninitialized
Common Var(warn_uninitialized) Warning
Warn about uninitialized automatic variables
Common Var(warn_unused_variable) Warning
Warn when a variable is unused
-Wvolatile-register-var
-Common Var(warn_register_var) Warning
-Warn when a register variable is declared volatile
-
Wcoverage-mismatch
Common RejectNegative Var(warn_coverage_mismatch) Warning
Warn instead of error in case profiles in -fprofile-use do not match
;
; 1: The version of the ABI first used in G++ 3.2.
;
+; 2: The version of the ABI first used in G++ 3.4.
+;
; Additional positive integers will be assigned as new versions of
; the ABI become the default version of the ABI.
fabi-version=
Common Report Var(flag_asynchronous_unwind_tables) Optimization
Generate unwind tables that are exact at each instruction boundary
+fauto-inc-dec
+Common Report Var(flag_auto_inc_dec) Init(1)
+Generate auto-inc/dec instructions
+
; -fcheck-bounds causes gcc to generate array bounds checks.
; For C, C++ and ObjC: defaults off.
; For Java: defaults to on.
Common Report Var(flag_caller_saves) Optimization
Save registers around function calls
+fcheck-data-deps
+Common Report Var(flag_check_data_deps)
+Compare the results of several data dependence analyzers.
+
fcommon
Common Report Var(flag_no_common,0) Optimization
Do not put uninitialized globals in the common section
Common Report Var(flag_cx_limited_range) Optimization
Omit range reduction step when performing complex division
+fcx-fortran-rules
+Common Report Var(flag_cx_fortran_rules) Optimization
+Complex multiplication and division follow Fortran rules
+
fdata-sections
Common Report Var(flag_data_sections) Optimization
Place data items into their own section
+fdbg-cnt-list
+Common Report
+List all available debugging counters with their limits and counts.
+
+fdbg-cnt=
+Common RejectNegative Joined
+-fdbg-cnt=<counter>:<limit>[,<counter>:<limit>,...] Set the debug counter limit.
+
+fdebug-prefix-map=
+Common Joined RejectNegative
+Map one directory name to another in debug information
+
; Nonzero for -fdefer-pop: don't pop args after each function call
; instead save them up to pop many calls' args with one insns.
fdefer-pop
Perform unused type elimination in debug info
femit-class-debug-always
-Common Report Var(flag_emit_class_debug_always) Init(1)
+Common Report Var(flag_emit_class_debug_always) Init(0)
Do not suppress C++ class debug information.
fexceptions
Common Report Var(flag_float_store) Optimization
Don't allocate floats and doubles in extended-precision registers
-; Nonzero for -fforce-addr: load memory address into a register before
-; reference to memory. This makes better cse but slower compilation.
fforce-addr
-Common Report Var(flag_force_addr) Optimization
-Copy memory address constants into registers before use
+Common
+Does nothing. Preserved for backward compatibility.
-fforward-propagate Optimization
-Common Report Var(flag_forward_propagate)
+fforward-propagate
+Common Report Var(flag_forward_propagate) Optimization
Perform a forward propagation pass on RTL
; Nonzero means don't put addresses of constant functions in registers.
Common Report Var(flag_no_inline,0) Init(2)
Pay attention to the \"inline\" keyword
+finline-small-functions
+Common Report Var(flag_inline_small_functions) Optimization
+Integrate simple functions into their callers when code size is known to not growth
+
finline-functions
Common Report Var(flag_inline_functions) Optimization
Integrate simple functions into their callers
Common Report Var(flag_instrument_function_entry_exit)
Instrument function entry and exit with profiling calls
+finstrument-functions-exclude-function-list=
+Common RejectNegative Joined
+-finstrument-functions-exclude-function-list=name,... Do not instrument listed functions
+
+finstrument-functions-exclude-file-list=
+Common RejectNegative Joined
+-finstrument-functions-exclude-file-list=filename,... Do not instrument functions listed in files
+
fipa-cp
Common Report Var(flag_ipa_cp) Optimization
Perform Interprocedural constant propagation
Common Report Var(flag_ipa_type_escape) Init(0) Optimization
Type based escape and alias analysis
+fipa-matrix-reorg
+Common Report Var(flag_ipa_matrix_reorg) Optimization
+Perform matrix layout flattening and transposing based
+on profiling information.
+
+fipa-struct-reorg
+Common Report Var(flag_ipa_struct_reorg)
+Perform structure layout optimizations based
+on profiling information.
+
fivopts
Common Report Var(flag_ivopts) Init(1) Optimization
Optimize induction variables on trees
Common Report Var(flag_merge_constants,1) VarExists Optimization
Attempt to merge identical constants across compilation units
+fmerge-debug-strings
+Common Report Var(flag_merge_debug_strings) Init(1)
+Attempt to merge identical debug strings across compilation units
+
fmessage-length=
Common RejectNegative Joined UInteger
-fmessage-length=<number> Limit diagnostics to <number> characters per line. 0 suppresses line-wrapping
Common Report Var(flag_modulo_sched) Optimization
Perform SMS based modulo scheduling before the first scheduling pass
+fmodulo-sched-allow-regmoves
+Common Report Var(flag_modulo_sched_allow_regmoves)
+Perform SMS based modulo scheduling with register moves allowed
+
fmove-loop-invariants
Common Report Var(flag_move_loop_invariants) Init(1) Optimization
Move loop invariant computations out of loops
Common RejectNegative Report Var(flag_mudflap_ignore_reads)
Ignore read operations when inserting mudflap instrumentation
+fdce
+Common Var(flag_dce) Init(1) Optimization
+Use the RTL dead code elimination pass
+
+fdse
+Common Var(flag_dse) Init(1) Optimization
+Use the RTL dead store elimination pass
+
freschedule-modulo-scheduled-loops
Common Report Var(flag_resched_modulo_sched) Optimization
Enable/Disable the traditional scheduling in loops that already passed modulo scheduling
Common Report Var(flag_omit_frame_pointer) Optimization
When possible do not generate stack frames
+fopenmp-ssa
+Common Report Var(flag_openmp_ssa)
+Expand OpenMP operations on SSA form
+
foptimize-register-move
Common Report Var(flag_regmove) Optimization
Do the full register move optimization pass
Common Report Var(flag_pie,1) VarExists
Generate position-independent code for executables if possible (small mode)
+fpredictive-commoning
+Common Report Var(flag_predictive_commoning) Optimization
+Run predictive commoning optimization.
+
fprefetch-loop-arrays
Common Report Var(flag_prefetch_loop_arrays) Optimization
Generate prefetch instructions, if available, for arrays in loops
Eliminate redundant sign extensions using LCM.
fshow-column
-Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(1)
-Show column numbers in diagnostics, when available. Default on
+Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(0)
+Show column numbers in diagnostics, when available. Default off
fsignaling-nans
Common Report Var(flag_signaling_nans) Optimization
Enable copy propagation on trees
ftree-store-copy-prop
-Common Report Var(flag_tree_store_copy_prop) Optimization
-Enable copy propagation for stores and loads
+Common
+Does nothing. Preserved for backward compatibility.
+
+ftree-cselim
+Common Report Var(flag_tree_cselim) Init(2) Optimization
+Transform condition stores into unconditional ones
ftree-dce
Common Report Var(flag_tree_dce) Optimization
Common Report Var(flag_tree_fre) Optimization
Enable Full Redundancy Elimination (FRE) on trees
+ftree-loop-distribution
+Common Report Var(flag_tree_loop_distribution)
+Enable loop distribution on trees
+
ftree-loop-im
Common Report Var(flag_tree_loop_im) Init(1) Optimization
Enable loop invariant motion on trees
Common Report Var(flag_tree_loop_optimize) Init(1) Optimization
Enable loop optimizations on tree level
+ftree-parallelize-loops=
+Common Report Joined UInteger Var(flag_tree_parallelize_loops) Init(1)
+Enable automatic parallelization of loops
+
ftree-pre
Common Report Var(flag_tree_pre) Optimization
Enable SSA-PRE optimization on trees
+ftree-reassoc
+Common Report Var(flag_tree_reassoc) Init(1) Optimization
+Enable reassociation on tree level
+
ftree-salias
Common Report Var(flag_tree_salias) Optimization
Perform structural alias analysis
Common Report Var(flag_unsafe_loop_optimizations) Optimization
Allow loop optimizations to assume that the loops behave in normal way
+fassociative-math
+Common Report Var(flag_associative_math)
+Allow optimization for floating-point arithmetic which may change the
+result of the operation due to rounding.
+
+freciprocal-math
+Common Report Var(flag_reciprocal_math)
+Same as -fassociative-math for expressions which include division.
+
; Nonzero means that unsafe floating-point math optimizations are allowed
; for the sake of speed. IEEE compliance is not guaranteed, and operations
; are allowed to assume that their arguments and results are "normal"
Common Report Var(flag_var_tracking) VarExists Optimization
Perform variable tracking
+fvar-tracking-uninit
+Common Report Var(flag_var_tracking_uninit) Optimization
+Perform variable tracking and also tag variables that are uninitialized
+
ftree-vectorize
Common Report Var(flag_tree_vectorize) Optimization
Enable loop vectorization on trees
+fvect-cost-model
+Common Report Var(flag_vect_cost_model) Optimization
+Enable use of cost model in vectorization
+
ftree-vect-loop-version
Common Report Var(flag_tree_vect_loop_version) Init(1) Optimization
Enable loop versioning when doing loop vectorization on trees
Common Var(inhibit_warnings)
Suppress warnings
+shared
+Common RejectNegative Negative(pie)
+Create a shared library
+
+pie
+Common RejectNegative Negative(shared)
+Create a position independent executable
+
; This comment is to ensure we retain the blank line above.
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