X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fcommon.opt;h=ae1fe9c01d6fbd9c82b6fe7a6eeb314c1ae05436;hp=2ad0e0a58f6280510fc2365e68ad0ee40abaec21;hb=912a710685cb83a63c4b927f56d1a8c002dcbc01;hpb=1c6a7b8cc39ec895eb489656f01642d97a77c1b3

diff --git a/gcc/common.opt b/gcc/common.opt
index 2ad0e0a58f6..ae1fe9c01d6 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1,5 +1,6 @@
 ; Options for the language- and target-independent parts of the compiler.
-; Copyright (C) 2003 Free Software Foundation, Inc.
+
+; Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
 ;
 ; This file is part of GCC.
 ;
@@ -18,7 +19,7 @@
 ; Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 ; 02111-1307, USA.
 
-; See c.opt for a description of this file's format.
+; See the GCC internals manual for a description of this file's format.
 
 ; Please try to keep this file in ASCII collating order.
 
@@ -28,7 +29,7 @@ Display this information
 
 -param
 Common Separate
---param <param>=<value>	Set paramter <param> to value.  See below for a complete list of parameters
+--param <param>=<value>	Set parameter <param> to value.  See below for a complete list of parameters
 
 -target-help
 Common
@@ -53,31 +54,35 @@ Common RejectNegative
 This switch is deprecated; use -Wextra instead
 
 Waggregate-return
-Common
+Common Var(warn_aggregate_return)
 Warn about returning structures, unions or arrays
 
 Wcast-align
-Common
+Common Var(warn_cast_align)
 Warn about pointer casts which increase alignment
 
 Wdeprecated-declarations
-Common
+Common Var(warn_deprecated_decl) Init(1)
 Warn about uses of __attribute__((deprecated)) declarations
 
 Wdisabled-optimization
-Common
+Common Var(warn_disabled_optimization)
 Warn when an optimization pass is disabled
 
 Werror
-Common
+Common Var(warnings_are_errors)
 Treat all warnings as errors
 
 Wextra
 Common
 Print extra (possibly unwanted) warnings
 
+Wfatal-errors
+Common Var(flag_fatal_errors)
+Exit on the first error occurred
+
 Winline
-Common
+Common Var(warn_inline)
 Warn when an inlined function cannot be inlined
 
 Wlarger-than-
@@ -85,47 +90,51 @@ Common RejectNegative Joined UInteger
 -Wlarger-than-<number>	Warn if an object is larger than <number> bytes
 
 Wmissing-noreturn
-Common
+Common Var(warn_missing_noreturn)
 Warn about functions which might be candidates for __attribute__((noreturn))
 
 Wpacked
-Common
+Common Var(warn_packed)
 Warn when the packed attribute has no effect on struct layout
 
 Wpadded
-Common
+Common Var(warn_padded)
 Warn when padding is required to align structure members
 
 Wshadow
-Common
+Common Var(warn_shadow)
 Warn when one local variable shadows another
 
 Wstrict-aliasing
 Common
 Warn about code which might break strict aliasing rules
 
+Wstrict-aliasing=
+Common Joined UInteger
+Warn about code which might break strict aliasing rules
+
 Wswitch
-Common
+Common Var(warn_switch)
 Warn about enumerated switches, with no default, missing a case
 
 Wswitch-default
-Common
+Common Var(warn_switch_default)
 Warn about enumerated switches missing a \"default:\" statement
 
 Wswitch-enum
-Common
+Common Var(warn_switch_enum)
 Warn about all enumerated switches missing a specific case
 
 Wsystem-headers
-Common
+Common Var(warn_system_headers)
 Do not suppress warnings from system headers
 
 Wuninitialized
-Common
+Common Var(warn_uninitialized)
 Warn about uninitialized automatic variables
 
 Wunreachable-code
-Common
+Common Var(warn_notreached)
 Warn about code that will never be executed
 
 Wunused
@@ -133,23 +142,23 @@ Common
 Enable all -Wunused- warnings
 
 Wunused-function
-Common
+Common Var(warn_unused_function)
 Warn when a function is unused
 
 Wunused-label
-Common
+Common Var(warn_unused_label)
 Warn when a label is unused
 
 Wunused-parameter
-Common
+Common Var(warn_unused_parameter)
 Warn when a function parameter is unused
 
 Wunused-value
-Common
+Common Var(warn_unused_value)
 Warn when an expression value is unused
 
 Wunused-variable
-Common
+Common Var(warn_unused_variable)
 Warn when a variable is unused
 
 aux-info
@@ -173,76 +182,99 @@ dumpbase
 Common Separate
 -dumpbase <file>	Set the file basename to be used for dumps
 
-fPIC
-Common
-
-fPIE
-Common
+; The version of the C++ ABI in use.  The following values are allowed:
+;
+; 0: The version of the ABI believed most conformant with the C++ ABI
+;    specification.  This ABI may change as bugs are discovered and fixed.
+;    Therefore, 0 will not necessarily indicate the same ABI in different
+;    versions of G++.
+;
+; 1: The version of the ABI first used in G++ 3.2.
+;
+; Additional positive integers will be assigned as new versions of
+; the ABI become the default version of the ABI.
+fabi-version=
+Common Joined UInteger Var(flag_abi_version) Init(2)
 
 falign-functions
-Common
+Common Report Var(align_functions,0)
 Align the start of functions
 
 falign-functions=
 Common RejectNegative Joined UInteger
 
 falign-jumps
-Common
+Common Report Var(align_jumps,0)
 Align labels which are only reached by jumping
 
 falign-jumps=
 Common RejectNegative Joined UInteger
 
 falign-labels
-Common
+Common Report Var(align_labels,0)
 Align all labels
 
 falign-labels=
 Common RejectNegative Joined UInteger
 
 falign-loops
-Common
+Common Report Var(align_loops)
 Align the start of loops
 
 falign-loops=
 Common RejectNegative Joined UInteger
 
+; This flag is only tested if alias checking is enabled.
+; 0 if pointer arguments may alias each other.  True in C.
+; 1 if pointer arguments may not alias each other but may alias
+;   global variables.
+; 2 if pointer arguments may not alias each other and may not
+;   alias global variables.  True in Fortran.
+;   The value is ignored if flag_alias_check is 0.
 fargument-alias
-Common
+Common Report Var(flag_argument_noalias,0)
 Specify that arguments may alias each other and globals
 
 fargument-noalias
-Common
+Common Report Var(flag_argument_noalias,1) VarExists
 Assume arguments may alias globals but not each other
 
 fargument-noalias-global
-Common
+Common Report Var(flag_argument_noalias,2) VarExists
 Assume arguments alias neither each other nor globals
 
 fasynchronous-unwind-tables
-Common
+Common Report Var(flag_asynchronous_unwind_tables)
 Generate unwind tables that are exact at each instruction boundary
 
+; -fcheck-bounds causes gcc to generate array bounds checks.
+; For C, C++ and ObjC: defaults off.
+; For Java: defaults to on.
+; For Fortran: defaults to off.
 fbounds-check
-Common
+Common Report Var(flag_bounds_check)
 Generate code to check bounds before indexing arrays
 
 fbranch-count-reg
-Common
+Common Report Var(flag_branch_on_count_reg) Init(1)
 Replace add, compare, branch with branch on count register
 
 fbranch-probabilities
-Common
+Common Report Var(flag_branch_probabilities)
 Use profiling information for branch probabilities
 
 fbranch-target-load-optimize
-Common
+Common Report Var(flag_branch_target_load_optimize)
 Perform branch target load optimization before prologue / epilogue threading
 
 fbranch-target-load-optimize2
-Common
+Common Report Var(flag_branch_target_load_optimize2)
 Perform branch target load optimization after prologue / epilogue threading
 
+fbtr-bb-exclusive
+Common Report Var(flag_btr_bb_exclusive)
+Restrict target load migration not to re-use registers in any basic block
+
 fcall-saved-
 Common Joined RejectNegative
 -fcall-saved-<register>	Mark <register> as being preserved across functions
@@ -251,79 +283,92 @@ fcall-used-
 Common Joined RejectNegative
 -fcall-used-<register>	Mark <register> as being corrupted by function calls
 
+; Nonzero for -fcaller-saves: allocate values in regs that need to
+; be saved across function calls, if that produces overall better code.
+; Optional now, so people can test it.
 fcaller-saves
-Common
+Common Report Var(flag_caller_saves)
 Save registers around function calls
 
 fcommon
-Common
+Common Report Var(flag_no_common,0)
 Do not put uninitialized globals in the common section
 
 fcprop-registers
-Common
+Common Report Var(flag_cprop_registers)
 Perform a register copy-propagation optimization pass
 
 fcrossjumping
-Common
+Common Report Var(flag_crossjumping)
 Perform cross-jumping optimization
 
 fcse-follow-jumps
-Common
+Common Report Var(flag_cse_follow_jumps)
 When running CSE, follow jumps to their targets
 
 fcse-skip-blocks
-Common
+Common Report Var(flag_cse_skip_blocks)
 When running CSE, follow conditional jumps
 
+fcx-limited-range
+Common Report Var(flag_cx_limited_range)
+Omit range reduction step when performing complex division
+
 fdata-sections
-Common
+Common Report Var(flag_data_sections)
 Place data items into their own section
 
+; 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
-Common
+Common Report Var(flag_defer_pop)
 Defer popping functions args from stack until later
 
 fdelayed-branch
-Common
+Common Report Var(flag_delayed_branch)
 Attempt to fill delay slots of branch instructions
 
 fdelete-null-pointer-checks
-Common
+Common Report Var(flag_delete_null_pointer_checks)
 Delete useless null pointer checks
 
 fdiagnostics-show-location=
 Common Joined RejectNegative
 -fdiagnostics-show-location=[once|every-line]	How often to emit source location at the beginning of line-wrapped diagnostics
 
+fdump-
+Common Joined RejectNegative
+-fdump-<type>	Dump various compiler internals to a file
+
 fdump-unnumbered
-Common
+Common Report Var(flag_dump_unnumbered) VarExists
 Suppress output of instruction numbers and line number notes in debugging dumps
 
 feliminate-dwarf2-dups
-Common
+Common Report Var(flag_eliminate_dwarf2_dups)
 Perform DWARF2 duplicate elimination
 
 feliminate-unused-debug-symbols
-Common
+Common Report Var(flag_debug_only_used_symbols)
 Perform unused type elimination in debug info
 
 feliminate-unused-debug-types
-Common
+Common Report Var(flag_eliminate_unused_debug_types) Init(1)
 Perform unused type elimination in debug info
 
 fexceptions
-Common
+Common Report Var(flag_exceptions)
 Enable exception handling
 
 fexpensive-optimizations
-Common
+Common Report Var(flag_expensive_optimizations)
 Perform a number of minor, expensive optimizations
 
 ffast-math
 Common
 
 ffinite-math-only
-Common
+Common Report Var(flag_finite_math_only)
 Assume no NaNs or infinities are generated
 
 ffixed-
@@ -331,71 +376,93 @@ Common Joined RejectNegative
 -ffixed-<register>	Mark <register> as being unavailable to the compiler
 
 ffloat-store
-Common
-Do not store floats in registers
+Common Report Var(flag_float_store)
+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
+Common Report Var(flag_force_addr)
 Copy memory address constants into registers before use
 
+; Nonzero for -fforce-mem: load memory value into a register
+; before arithmetic on it.  This makes better cse but slower compilation.
 fforce-mem
-Common
+Common Report Var(flag_force_mem)
 Copy memory operands into registers before use
 
+; Nonzero means don't put addresses of constant functions in registers.
+; Used for compiling the Unix kernel, where strange substitutions are
+; done on the assembly output.
 ffunction-cse
-Common
+Common Report Var(flag_no_function_cse,0)
 Allow function addresses to be held in registers
 
 ffunction-sections
-Common
+Common Report Var(flag_function_sections)
 Place each function into its own section
 
 fgcse
-Common
+Common Report Var(flag_gcse)
 Perform global common subexpression elimination
 
 fgcse-lm
-Common
+Common Report Var(flag_gcse_lm) Init(1)
 Perform enhanced load motion during global common subexpression elimination
 
 fgcse-sm
-Common
+Common Report Var(flag_gcse_sm) Init(0)
 Perform store motion after global common subexpression elimination
 
 fgcse-las
-Common
-Perform redundant load after store elimination in global common subexpression elimination
+Common Report Var(flag_gcse_las) Init(0)
+Perform redundant load after store elimination in global common subexpression
+elimination
 
-fgnu-linker
-Common
-Output GNU ld formatted global initializers
+fgcse-after-reload
+Common Report Var(flag_gcse_after_reload)
+Perform global common subexpression elimination after register allocation
+has finished.
 
 fguess-branch-probability
-Common
+Common Report Var(flag_guess_branch_prob)
 Enable guessing of branch probabilities
 
+; Nonzero means ignore `#ident' directives.  0 means handle them.
+; Generate position-independent code for executables if possible
+; On SVR4 targets, it also controls whether or not to emit a
+; string identifying the compiler.
 fident
-Common
+Common Report Var(flag_no_ident,0)
 Process #ident directives
 
 fif-conversion
-Common
+Common Report Var(flag_if_conversion)
 Perform conversion of conditional jumps to branchless equivalents
 
 fif-conversion2
-Common
+Common Report Var(flag_if_conversion2)
 Perform conversion of conditional jumps to conditional execution
 
+; -finhibit-size-directive inhibits output of .size for ELF.
+; This is used only for compiling crtstuff.c,
+; and it may be extended to other effects
+; needed for crtstuff.c on other systems.
 finhibit-size-directive
-Common
+Common Report Var(flag_inhibit_size_directive)
 Do not generate .size directives
 
+; Nonzero means that functions declared `inline' will be treated
+; as `static'.  Prevents generation of zillions of copies of unused
+; static inline functions; instead, `inlines' are written out
+; only when actually used.  Used in conjunction with -g.  Also
+; does the right thing with #pragma interface.
 finline
-Common
+Common Report Var(flag_no_inline,0) Init(2)
 Pay attention to the \"inline\" keyword
 
 finline-functions
-Common
+Common Report Var(flag_inline_functions)
 Integrate simple functions into their callers
 
 finline-limit-
@@ -406,119 +473,158 @@ Common RejectNegative Joined UInteger
 -finline-limit=<number>	Limit the size of inlined functions to <number>
 
 finstrument-functions
-Common
+Common Report Var(flag_instrument_function_entry_exit)
 Instrument function entry and exit with profiling calls
 
+fivopts
+Common Report Var(flag_ivopts) Init(1)
+Optimize induction variables on trees
+
 fkeep-inline-functions
-Common
+Common Report Var(flag_keep_inline_functions)
 Generate code for functions even if they are fully inlined
 
 fkeep-static-consts
-Common
+Common Report Var(flag_keep_static_consts) Init(1)
 Emit static const variables even if they are not used
 
 fleading-underscore
-Common
+Common Report Var(flag_leading_underscore) Init(-1)
 Give external symbols a leading underscore
 
 floop-optimize
-Common
+Common Report Var(flag_loop_optimize)
 Perform loop optimizations
 
+floop-optimize2
+Common Report Var(flag_loop_optimize2)
+Perform loop optimizations using the new loop optimizer
+
 fmath-errno
-Common
+Common Report Var(flag_errno_math) Init(1)
 Set errno after built-in math functions
 
 fmem-report
-Common
+Common Report Var(mem_report)
 Report on permanent memory allocation
 
+; This will attempt to merge constant section constants, if 1 only
+; string constants and constants from constant pool, if 2 also constant
+; variables.
 fmerge-all-constants
-Common
+Common Report Var(flag_merge_constants,2) Init(1)
 Attempt to merge identical constants and constant variables
 
 fmerge-constants
-Common
+Common Report Var(flag_merge_constants,1) VarExists
 Attempt to merge identical constants across compilation units
 
 fmessage-length=
 Common RejectNegative Joined UInteger
 -fmessage-length=<number>	Limit diagnostics to <number> characters per line.  0 suppresses line-wrapping
 
-fmove-all-movables
-Common
-Force all loop invariant computations out of loops
+fmodulo-sched
+Common Report Var(flag_modulo_sched)
+Perform SMS based modulo scheduling before the first scheduling pass
 
-fnew-ra
-Common
-Use graph-coloring register allocation
+fmove-loop-invariants
+Common Report Var(flag_move_loop_invariants)
+Move loop invariant computations out of loops
 
-fnon-call-exceptions
-Common
-Support synchronous non-call exceptions
+fmudflap
+Common RejectNegative Report Var(flag_mudflap)
+Add mudflap bounds-checking instrumentation for single-threaded program.
 
-fold-unroll-loops
-Common
-Perform loop unrolling when iteration count is known
+fmudflapth
+Common RejectNegative Report Var(flag_mudflap_threads)
+Add mudflap bounds-checking instrumentation for multi-threaded program.
 
-fold-unroll-all-loops
-Common
-Perform loop unrolling for all loops
+fmudflapir
+Common RejectNegative Report Var(flag_mudflap_ignore_reads)
+Ignore read operations when inserting mudflap instrumentation.
+
+freschedule-modulo-scheduled-loops
+Common Report Var(flag_resched_modulo_sched)
+Enable/Disable the traditional scheduling in loops that already passed modulo scheduling
+
+fnon-call-exceptions
+Common Report Var(flag_non_call_exceptions)
+Support synchronous non-call exceptions
 
 fomit-frame-pointer
-Common
+Common Report Var(flag_omit_frame_pointer)
 When possible do not generate stack frames
 
 foptimize-register-move
-Common
+Common Report Var(flag_regmove)
 Do the full register move optimization pass
 
 foptimize-sibling-calls
-Common
+Common Report Var(flag_optimize_sibling_calls)
 Optimize sibling and tail recursive calls
 
 fpack-struct
-Common
+Common Report Var(flag_pack_struct)
 Pack structure members together without holes
 
+fpack-struct=
+Common RejectNegative Joined UInteger
+-fpack-struct=<number>	Set initial maximum structure member alignment
+
 fpcc-struct-return
-Common
+Common Report Var(flag_pcc_struct_return,1) VarExists
 Return small aggregates in memory, not registers
 
 fpeel-loops
-Common
+Common Report Var(flag_peel_loops)
 Perform loop peeling
 
 fpeephole
-Common
+Common Report Var(flag_no_peephole,0)
 Enable machine specific peephole optimizations
 
 fpeephole2
-Common
+Common Report Var(flag_peephole2)
 Enable an RTL peephole pass before sched2
 
+fPIC
+Common Report Var(flag_pic,2)
+Generate position-independent code if possible (large mode)
+
+fPIE
+Common Report Var(flag_pie,2)
+Generate position-independent code for executables if possible (large mode)
+
 fpic
-Common
-Generate position-independent code if possible
+Common Report Var(flag_pic,1) VarExists
+Generate position-independent code if possible (small mode)
 
 fpie
-Common
-Generate position-independent code for executables if possible
+Common Report Var(flag_pie,1) VarExists
+Generate position-independent code for executables if possible (small mode)
 
 fprefetch-loop-arrays
-Common
+Common Report Var(flag_prefetch_loop_arrays)
 Generate prefetch instructions, if available, for arrays in loops
 
 fprofile
-Common
+Common Report Var(profile_flag)
 Enable basic program profiling code
 
 fprofile-arcs
-Common
+Common Report Var(profile_arc_flag)
 Insert arc-based program profiling code
 
-fprofile-values
+fprofile-generate
 Common
+Enable common options for generating profile info for profile feedback directed optimizations
+
+fprofile-use
+Common
+Enable common options for performing profile feedback directed optimizations
+
+fprofile-values
+Common Report Var(flag_profile_values)
 Insert code to profile values of expressions
 
 frandom-seed
@@ -528,56 +634,56 @@ frandom-seed=
 Common Joined RejectNegative
 -frandom-seed=<string>	Make compile reproducible using <string>
 
-freduce-all-givs
-Common
-Strength reduce all loop general induction variables
-
 freg-struct-return
-Common
+Common Report Var(flag_pcc_struct_return,0) VarExists
 Return small aggregates in registers
 
 fregmove
-Common
+Common Report Var(flag_regmove)
 Enables a register move optimization
 
 frename-registers
-Common
+Common Report Var(flag_rename_registers)
 Perform a register renaming optimization pass
 
 freorder-blocks
-Common
+Common Report Var(flag_reorder_blocks)
 Reorder basic blocks to improve code placement
 
+freorder-blocks-and-partition
+Common Report Var(flag_reorder_blocks_and_partition)
+Reorder basic blocks and partition into hot and cold sections
+
 freorder-functions
-Common
+Common Report Var(flag_reorder_functions)
 Reorder functions to improve code placement
 
 frerun-cse-after-loop
-Common
+Common Report Var(flag_rerun_cse_after_loop)
 Add a common subexpression elimination pass after loop optimizations
 
 frerun-loop-opt
-Common
+Common Report Var(flag_rerun_loop_opt)
 Run the loop optimizer twice
 
 frounding-math
-Common
+Common Report Var(flag_rounding_math)
 Disable optimizations that assume default FP rounding behavior
 
 fsched-interblock
-Common
+Common Report Var(flag_schedule_interblock) Init(1)
 Enable scheduling across basic blocks
 
 fsched-spec
-Common
+Common Report Var(flag_schedule_speculative) Init(1)
 Allow speculative motion of non-loads
 
 fsched-spec-load
-Common
+Common Report Var(flag_schedule_speculative_load)
 Allow speculative motion of some loads
 
 fsched-spec-load-dangerous
-Common
+Common Report Var(flag_schedule_speculative_load_dangerous)
 Allow speculative motion of more loads
 
 fsched-verbose=
@@ -585,63 +691,75 @@ Common RejectNegative Joined
 -fsched-verbose=<number>	Set the verbosity level of the scheduler
 
 fsched2-use-superblocks
-Common
+Common Report Var(flag_sched2_use_superblocks)
 If scheduling post reload, do superblock scheduling
 
 fsched2-use-traces
-Common
+Common Report Var(flag_sched2_use_traces)
 If scheduling post reload, do trace scheduling
 
 fschedule-insns
-Common
+Common Report Var(flag_schedule_insns)
 Reschedule instructions before register allocation
 
 fschedule-insns2
-Common
+Common Report Var(flag_schedule_insns_after_reload)
 Reschedule instructions after register allocation
 
+; sched_stalled_insns means that insns can be moved prematurely from the queue
+; of stalled insns into the ready list.
 fsched-stalled-insns
-Common
+Common Report Var(flag_sched_stalled_insns)
 Allow premature scheduling of queued insns
 
 fsched-stalled-insns=
 Common RejectNegative Joined UInteger 
--fsched-stalled-insns=<number>       Set number of queued insns that can be prematurely scheduled
+-fsched-stalled-insns=<number>	Set number of queued insns that can be prematurely scheduled
 
+; 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).
 fsched-stalled-insns-dep
-Common
+Common Report Var(flag_sched_stalled_insns_dep,1) Init(1)
 Set dependence distance checking in premature scheduling of queued insns
 
 fsched-stalled-insns-dep=
 Common RejectNegative Joined UInteger
--fsched-stalled-insns-dep=<number>   Set dependence distance checking in premature scheduling of queued insns
+-fsched-stalled-insns-dep=<number>	Set dependence distance checking in premature scheduling of queued insns
 
 fshared-data
-Common
+Common Report Var(flag_shared_data)
 Mark data as shared rather than private
 
+fshow-column
+Common C ObjC C++ ObjC++ Report Var(flag_show_column) Init(1)
+Show column numbers in diagnostics, when available.  Default on.
+
 fsignaling-nans
-Common
+Common Report Var(flag_signaling_nans)
 Disable optimizations observable by IEEE signaling NaNs
 
 fsingle-precision-constant
-Common
+Common Report Var(flag_single_precision_constant)
 Convert floating point constants to single precision constants
 
-fssa
-Common
-Enable static single assignment optimizations
+fspeculative-prefetching
+Common Report Var(flag_speculative_prefetching)
+Use value profiling for speculative prefetching
 
-fssa-ccp
-Common
-Enable SSA conditional constant propagation
+fsplit-ivs-in-unroller
+Common Report Var(flag_split_ivs_in_unroller) Init(1)
+Split lifetimes of induction variables when loops are unrolled.
 
-fssa-dce
-Common
-Enable aggressive SSA dead code elimination
+fvariable-expansion-in-unroller
+Common Report Var(flag_variable_expansion_in_unroller) 
+Apply variable expansion when loops are unrolled.
 
+; Emit code to probe the stack, to help detect stack overflow; also
+; may cause large objects to be allocated dynamically.
 fstack-check
-Common
+Common Report Var(flag_stack_check)
 Insert stack checking code into the program
 
 fstack-limit
@@ -656,27 +774,31 @@ Common RejectNegative Joined
 -fstack-limit-symbol=<name>	Trap if the stack goes past symbol <name>
 
 fstrength-reduce
-Common
+Common Report Var(flag_strength_reduce)
 Perform strength reduction optimizations
 
+; Nonzero if we should do (language-dependent) alias analysis.
+; Typically, this analysis will assume that expressions of certain
+; types do not alias expressions of certain other types.  Only used
+; if alias analysis (in general) is enabled.
 fstrict-aliasing
-Common
+Common Report Var(flag_strict_aliasing)
 Assume strict aliasing rules apply
 
 fsyntax-only
-Common
+Common Report Var(flag_syntax_only)
 Check for syntax errors, then stop
 
 ftest-coverage
-Common
+Common Report Var(flag_test_coverage)
 Create data files needed by \"gcov\"
 
 fthread-jumps
-Common
+Common Report Var(flag_thread_jumps)
 Perform jump threading optimizations
 
 ftime-report
-Common
+Common Report Var(time_report)
 Report the time taken by each compiler pass
 
 ftls-model=
@@ -684,63 +806,165 @@ Common Joined RejectNegative
 -ftls-model=[global-dynamic|local-dynamic|initial-exec|local-exec]	Set the default thread-local storage code generation model
 
 ftracer
-Common
+Common Report Var(flag_tracer)
 Perform superblock formation via tail duplication
 
+; Zero means that floating-point math operations cannot generate a
+; (user-visible) trap.  This is the case, for example, in nonstop
+; IEEE 754 arithmetic.
 ftrapping-math
-Common
+Common Report Var(flag_trapping_math) Init(1)
 Assume floating-point operations can trap
 
 ftrapv
-Common
+Common Report Var(flag_trapv)
 Trap for signed overflow in addition, subtraction and multiplication
 
+ftree-based-profiling
+Common Report Var(flag_tree_based_profiling)
+Use tree-ssa based implementation of profiling
+
+ftree-ccp
+Common Report Var(flag_tree_ccp)
+Enable SSA-CCP optimization on trees
+
+ftree-ch
+Common Report Var(flag_tree_ch)
+Enable loop header copying on trees
+
+ftree-combine-temps
+Common Report Var(flag_tree_combine_temps)
+Coalesce memory temporaries in the SSA->normal pass
+
+ftree-copyrename
+Common Report Var(flag_tree_copyrename)
+Replace SSA temporaries with better names in copies.
+
+ftree-dce
+Common Report Var(flag_tree_dce)
+Enable SSA dead code elimination optimization on trees
+
+ftree-dominator-opts
+Common Report Var(flag_tree_dom)
+Enable dominator optimizations
+
+ftree-dse
+Common Report Var(flag_tree_dse)
+Enable dead store elimination
+
+ftree-fre
+Common Report Var(flag_tree_fre)
+Enable Full Redundancy Elimination (FRE) on trees
+
+ftree-loop-im
+Common Report Var(flag_tree_loop_im) Init(1)
+Enable loop invariant motion on trees
+
+ftree-loop-linear
+Common Report Var(flag_tree_loop_linear)
+Enable linear loop transforms on trees
+
+ftree-loop-ivcanon
+Common Report Var(flag_tree_loop_ivcanon) Init(1)
+Create canonical induction variables in loops
+
+ftree-loop-optimize
+Common Report Var(flag_tree_loop_optimize) Init(1)
+Enable loop optimizations on tree level
+
+ftree-pre
+Common Report Var(flag_tree_pre)
+Enable SSA-PRE optimization on trees
+
+ftree-salias
+Common Report Var(flag_tree_salias)
+Perform structural alias analysis
+
+ftree-sink
+Common Report Var(flag_tree_sink)
+Enable SSA code sinking on trees
+
+ftree-sra
+Common Report Var(flag_tree_sra)
+Perform scalar replacement of aggregates
+
+ftree-ter
+Common Report Var(flag_tree_ter)
+Replace temporary expressions in the SSA->normal pass
+
+ftree-lrs
+Common Report Var(flag_tree_live_range_split)
+Perform live range splitting during the SSA->normal pass.
+
 funit-at-a-time
-Common
+Common Report Var(flag_unit_at_a_time)
 Compile whole compilation unit at a time
 
 funroll-loops
-Common
+Common Report Var(flag_unroll_loops)
 Perform loop unrolling when iteration count is known
 
 funroll-all-loops
-Common
+Common Report Var(flag_unroll_all_loops)
 Perform loop unrolling for all loops
 
+; 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"
+; (e.g., nonnegative for SQRT).
 funsafe-math-optimizations
-Common
+Common Report Var(flag_unsafe_math_optimizations)
 Allow math optimizations that may violate IEEE or ISO standards
 
 funswitch-loops
-Common
+Common Report Var(flag_unswitch_loops)
 Perform loop unswitching
 
 funwind-tables
-Common
+Common Report Var(flag_unwind_tables)
 Just generate unwind tables for exception handling
 
+fvar-tracking
+Common Report Var(flag_var_tracking) VarExists
+Perform variable tracking
+
+ftree-vectorize
+Common Report Var(flag_tree_vectorize)
+Enable loop vectorization on trees
+
+ftree-vectorizer-verbose=
+Common RejectNegative Joined
+-ftree-vectorizer-verbose=<number>	Set the verbosity level of the vectorizer
+
+; -fverbose-asm causes extra commentary information to be produced in
+; the generated assembly code (to make it more readable).  This option
+; is generally only of use to those who actually need to read the
+; generated assembly code (perhaps while debugging the compiler itself).
+; -fno-verbose-asm, the default, causes the extra information
+; to not be added and is useful when comparing two assembler files.
 fverbose-asm
-Common
+Common Report Var(flag_verbose_asm)
 Add extra commentary to assembler output
 
+fvisibility=
+Common Joined RejectNegative
+-fvisibility=[default|internal|hidden|protected]	Set the default symbol visibility
+
+
 fvpt
-Common
+Common Report Var(flag_value_profile_transformations)
 Use expression value profiles in optimizations
 
 fweb
-Common
+Common Report Var(flag_web) Init(0)
 Construct webs and split unrelated uses of single variable
 
 fwrapv
-Common
+Common Report Var(flag_wrapv)
 Assume signed arithmetic overflow wraps around
 
-fwritable-strings
-Common
-Store strings in writable data section
-
 fzero-initialized-in-bss
-Common
+Common Report Var(flag_zero_initialized_in_bss) Init(1)
 Put zero initialized data in the bss section
 
 g
@@ -751,14 +975,6 @@ gcoff
 Common JoinedOrMissing
 Generate debug information in COFF format
 
-gdwarf
-Common JoinedOrMissing
-Generate debug information in DWARF v1 format
-
-gdwarf+
-Common JoinedOrMissing
-Generate debug information in extended DWARF v1 format
-
 gdwarf-2
 Common JoinedOrMissing
 Generate debug information in DWARF v2 format
@@ -787,19 +1003,16 @@ gxcoff+
 Common JoinedOrMissing
 Generate debug information in extended XCOFF format
 
-m
-Common Joined
-
 o
 Common Joined Separate
 -o <file>	Place output into <file>
 
 p
-Common
+Common Var(profile_flag)
 Enable function profiling
 
 pedantic
-Common
+Common Var(pedantic)
 Issue warnings needed for strict compliance to the standard
 
 pedantic-errors
@@ -807,15 +1020,15 @@ Common
 Like -pedantic but issue them as errors
 
 quiet
-Common
+Common Var(quiet_flag)
 Do not display functions compiled or elapsed time
 
 version
-Common
+Common Var(version_flag)
 Display the compiler's version
 
 w
-Common
+Common Var(inhibit_warnings)
 Suppress warnings
 
 ; This comment is to ensure we retain the blank line above.