; 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.
;
; 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.
-G<number> Put global and static data smaller than <number> bytes into a special section (on some targets)
O
-Common JoinedOrMissing
+Common JoinedOrMissing Optimization
-O<number> Set optimization level to <number>
Os
-Common
+Common Optimization
Optimize for space rather than speed
W
Common Var(warn_disabled_optimization) Warning
Warn when an optimization pass is disabled
+Wdisallowed-function-list=
+Common RejectNegative Joined Warning
+Warn on calls to these functions
+
Werror
Common Var(warnings_are_errors)
Treat all warnings as errors
Common Var(flag_fatal_errors)
Exit on the first error occurred
+Wframe-larger-than=
+Common RejectNegative Joined UInteger
+-Wframe-larger-than=<number> Warn if a function's stack frame requires more than <number> bytes
+
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)
Common Var(warn_missing_noreturn) Warning
Warn about functions which might be candidates for __attribute__((noreturn))
+Wmudflap
+Common Var(warn_mudflap) Init(1) Warning
+Warn about constructs not instrumented by -fmudflap
+
Woverflow
Common Var(warn_overflow) Init(1) Warning
Warn about overflow in arithmetic expressions
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
Common Joined UInteger Var(flag_abi_version) Init(2)
falign-functions
-Common Report Var(align_functions,0)
+Common Report Var(align_functions,0) Optimization UInteger
Align the start of functions
falign-functions=
Common RejectNegative Joined UInteger
falign-jumps
-Common Report Var(align_jumps,0) Optimization
+Common Report Var(align_jumps,0) Optimization UInteger
Align labels which are only reached by jumping
falign-jumps=
Common RejectNegative Joined UInteger
falign-labels
-Common Report Var(align_labels,0) Optimization
+Common Report Var(align_labels,0) Optimization UInteger
Align all labels
falign-labels=
Common RejectNegative Joined UInteger
falign-loops
-Common Report Var(align_loops) Optimization
+Common Report Var(align_loops) Optimization UInteger
Align the start of loops
falign-loops=
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
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
Common Report Var(flag_forward_propagate) Optimization
Common Report Var(flag_inhibit_size_directive)
Do not generate .size directives
+findirect-inlining
+Common Report Var(flag_indirect_inlining)
+Perform indirect inlining
+
; 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 Report Var(flag_no_inline,0) Init(2)
+Common Report Var(flag_no_inline,0) Init(0)
Pay attention to the \"inline\" keyword
finline-small-functions
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
Does nothing. Preserved for backward compatibility.
fmath-errno
-Common Report Var(flag_errno_math) Init(1)
+Common Report Var(flag_errno_math) Init(1) Optimization
Set errno after built-in math functions
fmem-report
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_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(profile_arc_flag)
Insert arc-based program profiling code
+fprofile-dir=
+Common Joined RejectNegative
+Set the top-level directory for storing the profile data.
+The default is 'pwd'.
+
fprofile-generate
Common
Enable common options for generating profile info for profile feedback directed optimizations
+fprofile-generate=
+Common Joined RejectNegative
+Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=
+
fprofile-use
-Common
+Common Var(flag_profile_use)
Enable common options for performing profile feedback directed optimizations
+fprofile-use=
+Common Joined RejectNegative
+Enable common options for performing profile feedback directed optimizations, and set -fprofile-dir=
+
fprofile-values
Common Report Var(flag_profile_values)
Insert code to profile values of expressions
; sched_stalled_insns means that insns can be moved prematurely from the queue
; of stalled insns into the ready list.
fsched-stalled-insns
-Common Report Var(flag_sched_stalled_insns) Optimization
+Common Report Var(flag_sched_stalled_insns) Optimization UInteger
Allow premature scheduling of queued insns
fsched-stalled-insns=
; 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 Report Var(flag_sched_stalled_insns_dep,1) Init(1) Optimization
+Common Report Var(flag_sched_stalled_insns_dep,1) Init(1) Optimization UInteger
Set dependence distance checking in premature scheduling of queued insns
fsched-stalled-insns-dep=
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
-ftls-model=[global-dynamic|local-dynamic|initial-exec|local-exec] Set the default thread-local storage code generation model
ftoplevel-reorder
-Common Report Var(flag_toplevel_reorder) Init(1) Optimization
+Common Report Var(flag_toplevel_reorder) Init(2) Optimization
Reorder top level functions, variables, and asms
ftracer
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-switch-conversion
+Common Report Var(flag_tree_switch_conversion) Optimization
+Perform conversions of switch initializations.
+
ftree-dce
Common Report Var(flag_tree_dce) Optimization
Enable SSA dead code elimination optimization on trees
Common Report Var(flag_tree_fre) Optimization
Enable Full Redundancy Elimination (FRE) on trees
+ftree-loop-distribution
+Common Report Var(flag_tree_loop_distribution) Optimization
+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
Enable reassociation on tree level
ftree-salias
-Common Report Var(flag_tree_salias) Optimization
-Perform structural alias analysis
+Common
+Does nothing. Preserved for backward compatibility.
ftree-sink
Common Report Var(flag_tree_sink) Optimization
Perform scalar replacement of aggregates
ftree-ter
-Common Report Var(flag_tree_ter) Optimization
+Common Report Var(flag_tree_ter) Init(1) Optimization
Replace temporary expressions in the SSA->normal pass
ftree-lrs
Perform Value Range Propagation on trees
funit-at-a-time
-Common Report Var(flag_unit_at_a_time) Optimization
+Common Report Var(flag_unit_at_a_time) Init(1) Optimization
Compile whole compilation unit at a time
funroll-loops
Common Report Var(flag_web) Init(2) Optimization
Construct webs and split unrelated uses of single variable
+ftree-builtin-call-dce
+Common Report Var(flag_tree_builtin_call_dce) Init(0) Optimization
+Enable conditional dead code elimination for builtin calls
+
fwhole-program
Common Report Var(flag_whole_program) Init(0) Optimization
Perform whole program optimizations
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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